CN114686023A - Production method of high-pigment carbon black for plastic master batch color paste - Google Patents
Production method of high-pigment carbon black for plastic master batch color paste Download PDFInfo
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- CN114686023A CN114686023A CN202210488853.9A CN202210488853A CN114686023A CN 114686023 A CN114686023 A CN 114686023A CN 202210488853 A CN202210488853 A CN 202210488853A CN 114686023 A CN114686023 A CN 114686023A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/50—Furnace black ; Preparation thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
- C09C1/58—Agglomerating, pelleting, or the like by wet methods
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/043—Drying, calcination
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/045—Agglomeration, granulation, pelleting
Abstract
The invention relates to the field of carbon black production, in particular to a production method of high-pigment carbon black for plastic master batch color paste, which comprises the steps of bringing a post-treatment process into the production process of the carbon black, adding an energy ball mill on a carbon black production line, adding a coupling agent and a dispersing agent into the carbon black which is not granulated, uniformly mixing the carbon black with the coupling agent and the dispersing agent by using the ball mill, crushing the carbon black by using the energy of the energy ball mill, crosslinking with the coupling agent, and coating the dispersing agent on the surface of carbon black particles to prepare pigment carbon black for color master batch and color paste.
Description
Technical Field
The invention relates to the field of carbon black production, in particular to a production method of high-pigment carbon black for plastic master batch color paste.
Background
According to incomplete statistics, the annual average growth rate of pigment carbon black for color master batches in other countries in the Asian region is about 7% -9%, and the annual average growth rate of pigment carbon black for color master batches in China is about 20%. China is the market with the fastest increase of the demand of color master batch pigment carbon black, but China still depends on import of the pigment carbon black used by high-grade black master batches. Pigment carbon black with high concentration and ultrahigh concentration, multifunctional color master batch carbon black and color master batch carbon black for fine fibers in China occupy less proportion, and have a certain gap compared with developed countries. With the development of the color master batch technology, the color master batch carbon black develops towards the direction of multifunction, high blackness and high-concentration high-technology content in the future. The traditional production method of the pigment carbon black is that carbon black is produced, then granulated, dried and packaged on a carbon black production line, and then the carbon black is sent to another factory or workshop for processing after the packaging is finished, wherein the processing method is ozone oxidation or nitric acid acidification, the surface of the carbon black is oxidized or acidified, acid groups are formed on the surface of the carbon black, the hydrophilicity or lipophilicity of the carbon black is increased, and the two methods for processing the carbon black can cause environmental pollution of different degrees.
The research shows that: the ozone oxidation method is used for treating the pigment carbon black, the oxidation degree of the surface of the carbon black is low, when the oxidized carbon black is applied to plastic master batches for film blowing, the color phase is gray, the blackness and the brightness are poor, the oxidation is insufficient, the oxygen-containing functional groups on the surface of the carbon black are few, and dust pollution and waste gas pollution are caused in the treatment process; the carbon black treated by the nitric acid acidification method has high acidification degree and more acidic groups on the surface of the carbon black, but the nitric acid is strong acid, so that the equipment is seriously corroded, and the treated carbon black is in a red phase, so that the appearance of a product is influenced. And nitric acid is easy to disperse at high temperature, argon can be decomposed in the treatment process, the argon can stimulate nervous systems of people and livestock, so that people are confused, vegetation around a plant is damaged, and the treated nitric acid waste liquid cannot be treated.
Although the current production mode and quality index of pigment carbon black in China have many defects, the price is much cheaper than that of the carbon black in China, and the color master batch in China develops rapidly, so that the pigment carbon black has larger development space and market development potential. How to provide carbon black for color master batch and color paste carbon black with high blackness, good dispersibility, high tinting strength, blue phase and no production environmental pollution becomes a technical verification problem of pigment carbon black production enterprises and a problem which needs to be solved urgently.
Disclosure of Invention
The invention combines the traditional furnace carbon black production process, takes environmental protection, no pollution and stable index as a main line, creates a great innovation, breaks through the traditional treatment process of pigment carbon black and color paste carbon black, brings the post-treatment process into the production process of the carbon black, adds an energy ball mill on the production line of the carbon black, adds a coupling agent and a dispersing agent into the carbon black which is not granulated, uniformly mixes the carbon black with the coupling agent and the dispersing agent by using the ball mill, crushes the carbon black by using the energy of the energy ball mill, crosslinks the carbon black with the coupling agent, and coats the dispersing agent on the surface of carbon black particles to prepare the carbon black pigment for color master batch and color paste. The pigment carbon black has high surface activity, more surface functional groups, and is lipophilic and hydrophilic. By using the pigment carbon black, the color master batch and the color paste with high blackness, excellent dispersion, blue phase and high brightness can be obtained only by mixing or mixing the carbon black with PE, PET, PP, PT and the like or color paste ingredients. The method comprises the following specific steps:
a production method of high-pigment carbon black for plastic master batch color paste is characterized by comprising the following steps: the processing technology comprises the steps of bringing the post-processing process into the production process of the carbon black, adding an energy ball mill on a production line of the carbon black, adding a coupling agent and a dispersing agent into the carbon black which is not pelletized, uniformly mixing the carbon black with the coupling agent and the dispersing agent by using the ball mill, crushing the carbon black by using the energy of the energy ball mill, crosslinking the carbon black with the coupling agent, and coating the dispersing agent on the surface of carbon black particles to prepare the pigment carbon black for color master batches and color pastes; the production method comprises the following steps:
(1) raw oil optimization and secondary processing: the anthracene oil is transported to an oil tank area oil unloading pool by a transport vehicle, after primary filtration is carried out through a filter screen of an oil unloading port, the raw oil is unloaded to the oil unloading pool and is statically settled for 48 hours, the raw oil is heated by a steam coil pipe and kept at a temperature of between 70 and 85 ℃, the settled raw oil is transported to an oil residue water three-phase separator through an oil transportation pump for reprocessing, the raw oil is dehydrated and deslagged through high-speed centrifugal separation of the three-phase separator, the raw oil after secondary processing enters an oil storage tank for temporary storage, is transported to a production line preheater through a rotary jet pump for heating, is filtered by a filter after being heated to 210 ℃, and enters a reaction furnace device;
(2) a reaction stage: the air is pressurized by a main air supply machine and then enters a multi-section reaction furnace to be mixed and combusted with fuel oil in a ratio of 16:1, the temperature of a combustion chamber is raised to 1800 plus 2100 ℃, raw oil is heated to 210 ℃ by a raw oil preheater and is put into a throat of the reaction furnace, the raw oil is atomized by compressed air and then is sprayed into the reaction chamber, an oil gun adopts a mode of 8-branch series connection, the flow of the raw oil can be accurately controlled between 4500kg/h and 5000kg/h, the pressure of the raw oil entering the furnace is controlled between 2.6MPa and 3.2MPa to ensure the coloring intensity of the raw oil, and the raw oil and high-temperature high-pressure air flowing out of the combustion chamber react for 0.05s to 0.1 s; the method comprises the following steps that (1) quenching water is desalted and softened water, the softened water enters a reaction furnace through a quenching water gun to terminate reaction, the temperature of carbon black flue gas is cooled to 920 ℃, the reaction is terminated, the carbon black flue gas enters a high-temperature air preheater, the temperature of air entering the furnace is heated to 800 ℃ through heat exchange of the pre-air preheater, the carbon black flue gas enters a waste heat boiler through the air preheater to perform partial waste heat recovery, high-pressure steam generated by the waste heat boiler is used for supplying steam requirements of a production line, heat exchange is performed through a raw oil preheater, the waste heat of the carbon black flue gas is fully utilized, and finally secondary softened water quenching cooling is performed at a Venturi tube to 260 ℃ and the carbon black flue gas enters a bag filtration and collection device;
(3) collecting and ball-milling treatment: the carbon black smoke after secondary quenching enters a bag filter box body to be subjected to smoke and gas separation, carbon black smoke dust is attached to the outside of a filter bag, falls off to a box body conical hopper after being shaken by periodic pulse compressed air, is conveyed to an air conveying pipeline through an airtight valve and a packing auger, powdered carbon black is conveyed into an energy ball mill through the air conveying pipeline, a coupling agent and a dispersing agent are added to the front end of the energy ball mill, the coupling agent and the dispersing agent in front of the ball mill are added into the powdered carbon black which is not granulated in a certain proportion, the powdered carbon black is further crushed by utilizing the action of the ball mill, the coupling agent and the dispersing agent in the ball mill are fully mixed with the powdered carbon black and collide with each other to produce lattice defects, the activity of unsaturated bonds is excited, the unsaturated bonds react with the unsaturated bonds of the coupling agent, and the C-C covalent bonds are generated by grafting;
(4) crushing and granulating: before entering a micron pulverizer, carbon black dust firstly passes through an additionally-installed pipeline foreign matter removing device, the carbon black dust treated by a ball mill enters the micron pulverizer through a conveying pipe to further pulverize the carbon black to a micron state, the carbon black dust pulverized by the pulverizer enters a spiral conveying separator to be collected, the carbon black dust is conveyed by a spiral auger to enter a wet-process granulator, the carbon black is mixed with granulation water in the granulator, the granulation water is softened demineralized water, the flow rate is controlled to be 3500kg/h-4000kg/h, a binder preparation solution with a certain concentration is injected into a static mixer through a diaphragm type plunger pump to be mixed with the granulation water, the particle strength of the carbon black is controlled through the concentration and the proportion of the binder, and the granulator is stirred by continuous rolling of a twisting tooth to enable the carbon black dust to form uniform particles;
(5) drying and collecting: and (2) the carbon black particles after granulation enter a carbon black dryer for dehydration and drying, the dryer fuel is combustible tail gas, the combustible tail gas and air enter a tail gas furnace for combustion in a ratio of 2:1, the temperature of the tail gas furnace is kept at about 1200 ℃, the moisture content of the carbon black is controlled to be less than or equal to 0.25% when the outlet temperature of the tail gas combustion furnace is about 230 ℃, the dried carbon black is subjected to multi-stage lifting, and is filtered for multiple times through a screening machine, an automatic magnetism cleaning machine and a winnowing dust collector which are arranged on a pipeline, and the obtained finished product finally enters a storage tank for packaging.
Preferably, in the step (1), the raw oil adopts 100% high-quality anthracene oil, and is subjected to secondary process treatment of dehydration and deslagging before use, wherein the water content of the treated raw oil is less than or equal to 0.3%, the ash content is less than or equal to 0.02%, the fraction before 360 ℃ is more than or equal to 75%, and the sulfur content is less than or equal to 3000 PPm.
Preferably, in the step (2), the fuel of the reaction furnace is natural gas, the ratio of the natural gas to the air is 1:16, the raw material oil guns are distributed in an annular shape with 8 raw material oil guns, the flow of each raw material oil gun is independently controlled, and the oil quantity of the raw material oil guns is accurately controlled at 5000 kg/h.
Preferably, in step (4), the powdered carbon black is treated in an energy ball mill with a rotation speed of 3600rpm and a power of 60kwh before being granulated.
Preferably, in the step (4), the powdery carbon black at the front end of the energy ball mill is added with the coupling agent of diallyl disulfide and the dispersant of polyethoxy and royal phenol, wherein the coupling agent accounts for 2 percent of the total amount of the carbon black, and the dispersant accounts for 1.5 percent of the total amount of the carbon black.
Preferably, in the step (4), the ratio of softened water to the binder is (20: 1) - (50: 1), the softened water is adopted for the granulating water, the softened water and the binder are fully mixed in a static mixer, then the mixture enters a granulator through a granulating water gun, so that the carbon black dust forms uniform granules, the motor frequency of the granulator is controlled to be 75-85%, and the average granule strength is 35cN-45 Cn.
Preferably, in the step (5), after the carbon black is subjected to multi-stage lifting, screening, demagnetizing and packaging to obtain the finished product, the obtained quality indexes are as follows: 45 mu m screen residue is less than or equal to 12ppm, the tinting strength is more than or equal to 135 percent, and the oil absorption value is 62 +/-510-5m3The iodine absorption value is 152 +/-5 g/kg, the heavy metal content is less than or equal to 80ppm, the sulfur content is less than or equal to 0.35 percent, the particle size is less than or equal to 17nm, the blackness is more than or equal to 44, and the toluene light transmittance is more than or equal to 98 percent.
The foreign matter clearing device for the pipeline comprises a body 1, the body 1 is of a funnel-shaped structure, the side wall of the front end of the body is provided with a carbon black pipeline inlet 2, the side wall of the rear end of the body 1 is provided with a carbon black pipeline outlet 5, the bottom of the body is provided with a deslagging port 8, the deslagging port 8 is provided with an iron slag baffle plate 11, the lower part of the iron slag baffle plate 11 is provided with a strong magnetic plate 3 one end of which extends to the outside of the body 1, the strong magnetic plate 3 is connected with a strong magnetic plate extraction cylinder, an iron slag sleeve 9 is arranged inside the body 1 and positioned at the inlet 2 end of the carbon black pipeline, the interior of the iron slag sleeve 9 is provided with a magnetic rod group 13, the magnetic rod group 13 extends to the exterior of the body 1, one end of the magnetic rod group 13 extending to the outside of the body 1 is provided with a magnetic rod group extraction cylinder 6, the front end of the carbon black pipeline outlet 5 in the body is vertically provided with a material guide plate 4, and the material guide plate 4 is provided with a material guide plate air outlet 10; the height of the material guide plate 4 is higher than that of the iron slag sleeve.
The part of the iron slag sleeve 9 positioned in the body extends downwards to the lower part of the carbon black pipeline inlet 2 pipeline; the inlet 2 of the carbon black pipeline and the outlet 5 of the carbon black pipeline are positioned at the same horizontal position; the magnetic bar group 13 is provided with more than 2 magnetic bars. The iron chips and other foreign matters doped in the carbon black smoke dust can be removed through the strong magnetic plate 3 and the magnetic rod group 13 of the device, the iron chips and the foreign matters are reduced to enter a crushing and granulating system, and the purity of the carbon black is improved.
Has the advantages that: the carbon black product manufactured by the invention has good blackness, blue phase, high tinting strength, good fluidity, good dispersion, small fineness, oleophylic property and hydrophily, the particle size, aggregate distribution and the like of the product reach the optimal state, the prepared color paste has high concentration and good blackness, the prepared film has good light transmittance, high blackness, smooth surface and no phenomenon of visible dispersion unevenness, and the prepared fiber has long spinning time, continuous yarn breakage and black and bright color and can replace imported products of the same type.
Drawings
In order to more clearly illustrate the implementation of the present invention and the solution in the prior art, the drawings used in the implementation or technical description of the solution will be briefly described.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic structural view of a foreign matter removing device for a pipeline;
1. a body; 2. a carbon black pipeline inlet; 3. a ferromagnetic plate; 4. a material guide plate; 5. a carbon black pipe outlet; 6. a magnetic rod group extraction cylinder; 7. a strong magnetic plate extraction cylinder; 8. a deslagging port; 9. a slag sleeve; 10. an air outlet of the material guide plate; 11. a slag baffle; 12. a vibration motor; 13 magnetic rod group.
Detailed Description
The invention discloses a method for producing high-pigment carbon black for plastic master batch color paste, which is realized by combining the attached drawings 1-2 and comprises the following steps:
1. raw oil optimization and secondary processing: the key problem to be solved is that the raw material oil proportion is optimized in the production process, because the color master batch and the color paste require carbon black for hue, the dispersibility is good, the screen residue content is low, the amount of asphaltene in an oil product directly influences the screen residue amount of the product, and the carbon black produced by the traditional raw materials of coal tar and carbon black oil is in a gray red phase and does not meet the requirement of a blue phase, the adopted process route is the process route of an oil-gas method, and the raw material oil adopts 100 percent anthracene oil. The specific operation is that anthracene oil is transported to an oil tank area oil unloading pool by a transport vehicle, after primary filtration is carried out by a filter screen of an oil unloading port, raw oil is unloaded to the oil unloading pool and is statically settled for 48 hours, the raw oil is heated by a steam coil pipe and is kept at 70-85 ℃, the settled raw oil is transported to an oil residue-water three-phase separator by a fuel delivery pump for reprocessing, the raw oil is dehydrated and deslagged by a high-speed centrifugation principle of the three-phase separator, the processed raw oil has the moisture content of less than or equal to 0.3 percent and the ash content of less than or equal to 0.02 percent, the secondarily processed raw oil enters an oil storage tank for temporary storage, is transported to a raw oil preheater of a production line by a rotary jet pump and is heated to 210 ℃, and then is filtered by a filter and enters a reaction furnace device.
2. A reaction stage: the air is pressurized by a main air supply machine and then enters a multi-section reaction furnace to be mixed and combusted with fuel oil in a ratio of 16:1, the temperature of a combustion chamber is raised to 1800 plus 2100 ℃, raw oil is heated to 210 ℃ by a raw oil preheater and is put into a throat of the reaction furnace, the raw oil is atomized by compressed air and then is sprayed into the reaction chamber, an oil gun adopts an 8-branch series connection mode, the flow rate of the raw oil can be accurately controlled between 4500kg/h and 5000kg/h, the pressure of the raw oil entering the furnace is controlled between 2.6MPa and 3.2MPa so as to guarantee the coloring intensity of the raw oil, and the raw oil and high-temperature high-pressure air flowing out of the combustion chamber react for 0.05s to 0.1 s. The quench water adopts the demineralized soft water, get into the reacting furnace termination reaction through the quench water rifle, cool off carbon black flue gas temperature to 920 ℃ termination reaction and get into high temperature air heater, heat the stove air temperature of going into through pre-air heater heat exchange and heat to 800 ℃, carbon black flue gas gets into the exhaust-heat boiler behind air heater and carries out partial waste heat recovery, the steam demand of the high pressure steam supply production line that utilizes exhaust-heat boiler to produce, carry out the heat exchange through raw oil preheater again, it is abundant with carbon black flue gas waste heat utilization, carry out secondary soft water quenching cooling to 260 ℃ entering bag at venturi department at last and worry collection device.
3. Collecting and ball-milling treatment: the carbon black smoke after secondary quenching enters a bag filter box body for smoke and gas separation, carbon black smoke dust is attached to the outside of a filter bag and falls off to a box body conical hopper after periodic pulse compressed air is shaken, the carbon black smoke dust is conveyed to an air conveying pipeline through an airtight valve and a packing auger, powdered carbon black is conveyed to an energy ball mill through the air conveying pipeline, a coupling agent and a dispersing agent are added to the front end of the energy ball mill, the important innovation point of the invention is that the coupling agent and the dispersing agent before the ball mill are added into the powdered carbon black which is not granulated according to a certain proportion, the powdered carbon black is further crushed by the action of the ball mill, the coupling agent and the dispersing agent in the ball mill are fully mixed with the powdered carbon black and collide to produce lattice defects, the activity of unsaturated bonds is excited, the unsaturated bonds of the coupling agent react with the unsaturated bonds of the coupling agent, and C-C covalent bonds are generated by grafting, diallyl disulfide and dicyclohexenyl trisulfide are selected as the coupling agent, polyether high dispersant S-100, polyethoxy and quebrachol are selected as dispersants for tests, in order to verify the action effects of the selected coupling agent and the selected dispersants, the invention adopts a comparative analysis method for selection, and Table 1 shows the set conditions of comparative experiments.
TABLE 1 Experimental effect verification table of dispersant coupling agent
In this invention, the personnel fix the type of the coupling agent, respectively select two dispersants to perform a comparative experiment to find out the optimal matching of the coupling agent and the dispersant, and perform the experiment under the four experimental conditions, wherein the experimental results are shown in table 2.
TABLE 2 Experimental results of coupling agent and dispersant combinations
The experimental verification can show that: the invention adopts the best matching of the diallyl disulfide, the polyethoxy and the Wangquan phenol, and has the best effect.
4. Crushing and granulating: the carbon black dust treated by the ball mill enters a micron crusher through a conveying pipe to further crush the carbon black to a micron state, and the innovation point of the step is that the carbon black dust firstly passes through an additionally arranged pipeline foreign matter removing device before entering the micron crusher. Carbon black enters the device from the conveying port end and passes through gaps of the magnetic bar groups, most of iron-containing impurities are attached to the magnetic bar groups, the remaining iron-containing impurities and other impurities are deposited at the bottom strong magnetic plate after the circulation direction of the carbon black is changed by the material guide plate, and the iron black is collected into the waste residue box through the slag discharge port; the carbon black dust crushed by the crusher enters a spiral conveying separator to be collected, the carbon black dust is conveyed by a spiral auger to enter a wet-process granulator, the carbon black is mixed with granulation water in the granulator, the granulation water is softened demineralized water, the flow rate is controlled to be 3500kg/h-4000kg/h, a binder preparation solution with a certain concentration is injected into a static mixer through a diaphragm type plunger pump to be mixed with the granulation water, the particle strength of the carbon black is controlled through the concentration and proportion of the binder, and the granulator is stirred through the continuous rolling of twisted teeth to enable the carbon black dust to form uniform particles.
5. Drying and collecting: and (2) dehydrating and drying the granulated carbon black particles in a carbon black dryer, wherein the fuel of the dryer is combustible tail gas, the combustible tail gas and air enter a tail gas furnace for combustion in a ratio of 2:1, the temperature of the tail gas furnace is kept at about 1200 ℃, the water content of the carbon black is controlled to be less than or equal to 0.25% when the outlet temperature of the tail gas combustion furnace is about 230 ℃, the dried carbon black is lifted in multiple stages, and the carbon black is filtered for multiple times through a screening machine, an automatic magnetic cleaning machine and a winnowing dust collector which are arranged on a pipeline, so that the obtained finished product finally enters a storage tank to be packaged into a finished product.
TABLE 3 comparison table of technical indexes of several similar carbon black products
In the development process of the invention, the optimal production process conditions, the optimal coupling agent and dispersant adding proportion, and the optimal ball mill and the power and rotating speed thereof are found out by a comparison experiment method. The conditions for the optimization are:
1. the raw oil proportion adopts: 100% anthracene oil
2. The fuel is used: natural gas;
3. the flow rate of air entering the furnace is as follows: 16000nM3/hr
4. Temperature of air entering the furnace: 8500C
5. Raw oil flow kg/hr (total flow): 5000
6. Number of raw oil jets (only): 8
7. Fuel flow nM 3/hr: 800
8. Type of coupling agent: diallyl disulfide
9. The dosage of the coupling agent is as follows: 2.0% of carbon black
10. Dispersant type: polyethoxy and Wang radical phenol
11. The dosage of the dispersant is as follows: 1.5% of the amount of carbon Black
12. Type of ball mill: horizontal type
13. Power of the ball mill: 60kwh
14. Rotating speed of the ball mill: 3600 rpm.
The above disclosure of the preferred embodiments of the invention is intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A production method of high-pigment carbon black for plastic master batch color paste is characterized by comprising the following steps: the processing technology comprises the steps of bringing the post-processing process into the production process of the carbon black, adding an energy ball mill on a production line of the carbon black, adding a coupling agent and a dispersing agent into the carbon black which is not pelletized, uniformly mixing the carbon black with the coupling agent and the dispersing agent by using the ball mill, crushing the carbon black by using the energy of the energy ball mill, crosslinking the carbon black with the coupling agent, and coating the dispersing agent on the surface of carbon black particles to prepare the pigment carbon black for color master batches and color pastes; the production method comprises the following steps:
(1) raw oil optimization and secondary processing: the anthracene oil is transported to an oil tank area oil unloading pool by a transport vehicle, after primary filtration is carried out through a filter screen of an oil unloading port, the raw oil is unloaded to the oil unloading pool and is statically settled for 48 hours, the raw oil is heated by a steam coil pipe and kept at a temperature of between 70 and 85 ℃, the settled raw oil is transported to an oil residue water three-phase separator through an oil transportation pump for reprocessing, the raw oil is dehydrated and deslagged through high-speed centrifugal separation of the three-phase separator, the raw oil after secondary processing enters an oil storage tank for temporary storage, is transported to a production line preheater through a rotary jet pump for heating, is filtered by a filter after being heated to 210 ℃, and enters a reaction furnace device;
(2) a reaction stage: the air is pressurized by a main air supply machine and then enters a multi-section reaction furnace to be mixed and combusted with fuel oil in a ratio of 16:1, the temperature of a combustion chamber is raised to 1800 plus 2100 ℃, raw oil is heated to 210 ℃ by a raw oil preheater and is put into a throat of the reaction furnace, the raw oil is atomized by compressed air and then is sprayed into the reaction chamber, an oil gun adopts a mode of 8-branch series connection, the flow of the raw oil can be accurately controlled between 4500kg/h and 5000kg/h, the pressure of the raw oil entering the furnace is controlled between 2.6MPa and 3.2MPa to ensure the coloring intensity of the raw oil, and the raw oil and high-temperature high-pressure air flowing out of the combustion chamber react for 0.05s to 0.1 s; the method comprises the following steps that (1) quenching water is desalted and softened water, the softened water enters a reaction furnace through a quenching water gun to terminate reaction, the temperature of carbon black flue gas is cooled to 920 ℃, the reaction is terminated, the carbon black flue gas enters a high-temperature air preheater, the temperature of air entering the furnace is heated to 800 ℃ through heat exchange of the pre-air preheater, the carbon black flue gas enters a waste heat boiler through the air preheater to perform partial waste heat recovery, high-pressure steam generated by the waste heat boiler is used for supplying steam requirements of a production line, heat exchange is performed through a raw oil preheater, the waste heat of the carbon black flue gas is fully utilized, and finally secondary softened water quenching cooling is performed at a Venturi tube to 260 ℃ and the carbon black flue gas enters a bag filtration and collection device;
(3) collecting and ball-milling treatment: the carbon black smoke after secondary quenching enters a bag filter box body to be subjected to smoke and gas separation, carbon black smoke dust is attached to the outside of a filter bag, falls off to a box body conical hopper after being shaken by periodic pulse compressed air, is conveyed to an air conveying pipeline through an airtight valve and a packing auger, powdered carbon black is conveyed into an energy ball mill through the air conveying pipeline, a coupling agent and a dispersing agent are added to the front end of the energy ball mill, the coupling agent and the dispersing agent in front of the ball mill are added into the powdered carbon black which is not granulated in a certain proportion, the powdered carbon black is further crushed by utilizing the action of the ball mill, the coupling agent and the dispersing agent in the ball mill are fully mixed with the powdered carbon black and collide with each other to produce lattice defects, the activity of unsaturated bonds is excited, the unsaturated bonds react with the unsaturated bonds of the coupling agent, and the C-C covalent bonds are generated by grafting;
(4) crushing and granulating: before entering a micron pulverizer, carbon black dust firstly passes through an additionally-installed pipeline foreign matter removing device, the carbon black dust treated by a ball mill enters the micron pulverizer through a conveying pipe to further pulverize the carbon black to a micron state, the carbon black dust pulverized by the pulverizer enters a spiral conveying separator to be collected, the carbon black dust is conveyed by a spiral auger to enter a wet-process granulator, the carbon black is mixed with granulation water in the granulator, the granulation water is softened demineralized water, the flow rate is controlled to be 3500kg/h-4000kg/h, a binder preparation solution with a certain concentration is injected into a static mixer through a diaphragm type plunger pump to be mixed with the granulation water, the particle strength of the carbon black is controlled through the concentration and the proportion of the binder, and the granulator is stirred by continuous rolling of a twisting tooth to enable the carbon black dust to form uniform particles;
(5) drying and collecting: and (2) the carbon black particles after granulation enter a carbon black dryer for dehydration and drying, the dryer fuel is combustible tail gas, the combustible tail gas and air enter a tail gas furnace for combustion in a ratio of 2:1, the temperature of the tail gas furnace is kept at about 1200 ℃, the moisture content of the carbon black is controlled to be less than or equal to 0.25% when the outlet temperature of the tail gas combustion furnace is about 230 ℃, the dried carbon black is subjected to multi-stage lifting, and is filtered for multiple times through a screening machine, an automatic magnetism cleaning machine and a winnowing dust collector which are arranged on a pipeline, and the obtained finished product finally enters a storage tank for packaging.
2. The method for producing high-pigment carbon black for plastic master batch color paste according to claim 1, which is characterized in that: in the step (1), the raw oil adopts 100 percent high-quality anthracene oil, and is subjected to secondary processes of dehydration and deslagging before use, the water content of the treated raw oil is less than or equal to 0.3 percent, the ash content is less than or equal to 0.02 percent, the fraction is more than or equal to 75 percent before 360 ℃, and the sulfur content is less than or equal to 3000 PPm.
3. The method for producing high-pigment carbon black for plastic master batch color paste according to claim 1, which is characterized in that: in the step (2), the fuel of the reaction furnace is natural gas, the ratio of the natural gas to the air is 1:16, the raw material oil guns are distributed annularly, the flow of each raw material oil gun is independently controlled, and the oil quantity of the raw material oil guns is accurately controlled to be 5000 kg/h.
4. The method for producing high-pigment carbon black for plastic master batch color paste according to claim 1, which is characterized in that: in the step (4), before the powdery carbon black is granulated, the powdery carbon black is treated in an energy ball mill with the rotating speed of 3600rpm and the power of 60 kwh.
5. The method for producing high-pigment carbon black for plastic master batch color paste according to claim 1, which is characterized in that: in the step (4), a coupling agent of diallyl disulfide and a dispersing agent of polyethoxy and Wangji phenol are added into the powdery carbon black at the front end of the energy ball mill, wherein the coupling agent accounts for 2% of the total amount of the carbon black, and the dispersing agent accounts for 1.5% of the total amount of the carbon black.
6. The method for producing high-pigment carbon black for plastic master batch color paste according to claim 1, which is characterized in that: in the step (4), the ratio of softened water to the binder is (20: 1) - (50: 1), the mixture is fully mixed in a static mixer and then enters a granulator through a granulation water gun, so that carbon black dust forms uniform granules, the motor frequency of the granulator is controlled to be 75-85%, and the average granule strength is 35cN-45 Cn.
7. The method for producing high-pigment carbon black for plastic master batch color paste according to claim 1, which is characterized in that: in the step (5), after the carbon black is subjected to multi-stage lifting, screening, demagnetizing and packaging to obtain a finished product, the obtained quality indexes are as follows: 45 mu m screen residue is less than or equal to 12ppm, the tinting strength is more than or equal to 135 percent, and the oil absorption value is 62 +/-510-5m3The iodine absorption value is 152 +/-5 g/kg, the heavy metal content is less than or equal to 80ppm, the sulfur content is less than or equal to 0.35 percent, the particle size is less than or equal to 17nm, the blackness is more than or equal to 44, and the light transmittance of toluene is more than or equal to 98 percent.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497357A (en) * | 2013-10-10 | 2014-01-08 | 张义纲 | Modified carbon black and preparation method thereof |
| CN106497152A (en) * | 2016-10-19 | 2017-03-15 | 拜城县中碳科技有限责任公司 | A kind of production technology of the colour carbon black for improving dispersibility and blackness |
| CN106947299A (en) * | 2017-05-03 | 2017-07-14 | 四川博蓝科新材料有限公司 | A kind of impurity content low colour carbon black production system and its production technology |
| CN108084803A (en) * | 2017-12-25 | 2018-05-29 | 荆州市江汉精细化工有限公司 | A kind of preparation method of silane-modified carbon black color paste |
| CN109054459A (en) * | 2018-08-08 | 2018-12-21 | 山东联科新材料有限公司 | A kind of production method of cable inner shield material carbon black |
| CN109111766A (en) * | 2018-09-08 | 2019-01-01 | 山东联科新材料有限公司 | A kind of production method of rubber product black carbon special |
| CN109135349A (en) * | 2018-09-26 | 2019-01-04 | 韩城黑猫炭黑有限责任公司 | A kind of production method of high-purity conductive black |
| CN109233350A (en) * | 2018-10-09 | 2019-01-18 | 乌海黑猫炭黑有限责任公司 | A kind of production method of the colour carbon black applied to chemical fibre |
| CN109321005A (en) * | 2018-09-10 | 2019-02-12 | 山东联科新材料有限公司 | The production method of high-purity carbon black |
| CN109370267A (en) * | 2018-10-09 | 2019-02-22 | 乌海黑猫炭黑有限责任公司 | A kind of production method of the colour carbon black applied to coating |
| CN112322077A (en) * | 2020-08-27 | 2021-02-05 | 山东联科新材料有限公司 | Production method of conductive carbon black for environment-friendly cable shielding material |
| CN113122028A (en) * | 2021-03-29 | 2021-07-16 | 苏州大学 | Instant superfine solid block carbon black and preparation method and application thereof |
| CN113480876A (en) * | 2021-06-30 | 2021-10-08 | 丰城黑豹炭黑有限公司 | Chemical fiber coloring carbon black and preparation method thereof |
| CN113527915A (en) * | 2021-08-25 | 2021-10-22 | 乌海黑猫炭黑有限责任公司 | Production method of pigment carbon black applied to leather color paste |
| CN113637339A (en) * | 2021-07-06 | 2021-11-12 | 万达集团股份有限公司 | Production method of carbon black for high-wear-resistance low-rolling-resistance green tire |
-
2022
- 2022-05-07 CN CN202210488853.9A patent/CN114686023A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497357A (en) * | 2013-10-10 | 2014-01-08 | 张义纲 | Modified carbon black and preparation method thereof |
| CN106497152A (en) * | 2016-10-19 | 2017-03-15 | 拜城县中碳科技有限责任公司 | A kind of production technology of the colour carbon black for improving dispersibility and blackness |
| CN106947299A (en) * | 2017-05-03 | 2017-07-14 | 四川博蓝科新材料有限公司 | A kind of impurity content low colour carbon black production system and its production technology |
| CN108084803A (en) * | 2017-12-25 | 2018-05-29 | 荆州市江汉精细化工有限公司 | A kind of preparation method of silane-modified carbon black color paste |
| CN109054459A (en) * | 2018-08-08 | 2018-12-21 | 山东联科新材料有限公司 | A kind of production method of cable inner shield material carbon black |
| CN109111766A (en) * | 2018-09-08 | 2019-01-01 | 山东联科新材料有限公司 | A kind of production method of rubber product black carbon special |
| CN109321005A (en) * | 2018-09-10 | 2019-02-12 | 山东联科新材料有限公司 | The production method of high-purity carbon black |
| CN109135349A (en) * | 2018-09-26 | 2019-01-04 | 韩城黑猫炭黑有限责任公司 | A kind of production method of high-purity conductive black |
| CN109233350A (en) * | 2018-10-09 | 2019-01-18 | 乌海黑猫炭黑有限责任公司 | A kind of production method of the colour carbon black applied to chemical fibre |
| CN109370267A (en) * | 2018-10-09 | 2019-02-22 | 乌海黑猫炭黑有限责任公司 | A kind of production method of the colour carbon black applied to coating |
| CN112322077A (en) * | 2020-08-27 | 2021-02-05 | 山东联科新材料有限公司 | Production method of conductive carbon black for environment-friendly cable shielding material |
| CN113122028A (en) * | 2021-03-29 | 2021-07-16 | 苏州大学 | Instant superfine solid block carbon black and preparation method and application thereof |
| CN113480876A (en) * | 2021-06-30 | 2021-10-08 | 丰城黑豹炭黑有限公司 | Chemical fiber coloring carbon black and preparation method thereof |
| CN113637339A (en) * | 2021-07-06 | 2021-11-12 | 万达集团股份有限公司 | Production method of carbon black for high-wear-resistance low-rolling-resistance green tire |
| CN113527915A (en) * | 2021-08-25 | 2021-10-22 | 乌海黑猫炭黑有限责任公司 | Production method of pigment carbon black applied to leather color paste |
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