CN212864622U

CN212864622U - Pigment yellow 154 synthesis equipment

Info

Publication number: CN212864622U
Application number: CN202021091249.5U
Authority: CN
Inventors: 陈建新; 倪越彪; 章立新; 方标
Original assignee: Shaoxing Shangyu Daxin Color Chemical Co ltd
Current assignee: Shaoxing Shangyu Daxin Color Chemical Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-04-02
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses a pigment yellow 154 synthesis device, which comprises a sodium nitrite dissolution kettle, a first centrifugal pump, a sodium nitrite solution metering tank, a diazo kettle, a hydrochloric acid metering tank, a second centrifugal pump, a diazo hydraulic filter, a diazo liquid receiving tank, a coupling kettle, a baking soda dissolution kettle, a coupling liquid metering tank, a coupling component dissolution kettle, a liquid alkali metering tank, a third centrifugal pump, a fourth centrifugal pump and a diaphragm filter press; the sodium nitrite dissolving kettle is communicated with the inner cavity of the diazo kettle through a first centrifugal pump and a sodium nitrite solution metering tank in sequence; the hydrochloric acid metering tank is communicated with the inner cavity of the diazo kettle. The utility model discloses can solve and how to design the technical problem of a pigment yellow 154's synthesizer.

Description

Pigment yellow 154 synthesis equipment

Technical Field

The utility model relates to a pigment yellow 154 synthesis equipment.

Background

Pigment Yellow 154, having the English name of Pigment Yellow 154 and the Chinese name of C.I. Pigment Yellow 154, CAS number of 68134-22-5, and molecular formula C₁₈H₁₄F₃N₅O₃Mainly applied to coatings. The pigment is one of the yellow varieties with the best light resistance and weather fastness.

The pigment variety gives green yellow, has a hue angle of 95.1 degrees, but has the advantages of red light development of pigment yellow 151, excellent light fastness, weather fastness and good heat resistance and stability of solvent resistance compared with C.I. pigment yellow 175, and is mainly applied to coatings. The pigment is one of the yellow varieties with the best light resistance and weather fastness, is mainly recommended to be used for metal decorative paint and automobile coating, and has good rheological property so that the glossiness of the metal decorative paint is not influenced at high concentration; can also be used for coloring soft and hard PVC plastic outdoor products; the heat resistance stability in HDPE is 210 ℃/5 min; is suitable for printing ink requiring high light fastness.

The molecular structure of pigment yellow 154 is as follows:

the prior literature reports methods for synthesizing pigment yellow 14: adding 30% hydrochloric acid into a diazo kettle, adding 2-trifluoromethylaniline, pulping and dissolving, adding water for dilution, adding ice for cooling, adding sodium nitrite for diazotization, adding diatomite or activated carbon for decolorization after diazotization is finished, and filtering to obtain a diazo liquid. Adding water, liquid alkali and 5-acetoacetylaminobenzimidazolone into a coupling kettle, stirring for dissolving, then adding hydrochloric acid or acetic acid, carrying out acid precipitation, adding sodium acetate, then cooling, adding a diazo liquid, finishing coupling, then heating, filtering and washing after reaction is finished to obtain a pigment yellow 154 crude product, and then pulping in a polar solvent, heating for dissolving and precipitating pigmentation.

The pigment yellow 154 obtained by the method has the advantages of reasonable product quality, higher cost, large dissolved and separated wastewater amount, high wastewater COD, complex operation, large solvent pollution and difficult recovery.

SUMMERY OF THE UTILITY MODEL

The utility model provides a yellow 154 synthesizer of pigment solves the technical problem who how to design a yellow 154 synthesizer of pigment.

Pigment yellow 154 synthesis equipment comprises a sodium nitrite dissolution kettle, a first centrifugal pump, a sodium nitrite solution metering tank, a diazo kettle, a hydrochloric acid metering tank, a second centrifugal pump, a diazo hydraulic filter, a diazo liquid receiving tank, a coupling kettle, a baking soda dissolution kettle, a coupling liquid metering tank, a coupling component dissolution kettle, a liquid alkali metering tank, a third centrifugal pump, a fourth centrifugal pump and a membrane filter press; the sodium nitrite dissolving kettle is communicated with the inner cavity of the diazo kettle through a first centrifugal pump and a sodium nitrite solution metering tank in sequence; the hydrochloric acid metering tank is communicated with the inner cavity of the diazo kettle; a material outlet at the bottom of the diazo kettle is communicated with the inner cavity of the coupling kettle sequentially through a second centrifugal pump, a diazo hydraulic filter and a diazo liquid receiving tank; the sodium bicarbonate dissolving kettle is communicated with the inner cavity of the coupling kettle; the liquid caustic soda metering tank is communicated with the inner cavity of the coupling kettle sequentially through the coupling component dissolving kettle, the third centrifugal pump and the coupling liquid metering tank; and a material outlet at the bottom of the coupling kettle is communicated with the membrane filter press through a fourth centrifugal pump.

The sodium nitrite dissolution kettle is provided with a first water feeding port and a sodium nitrite feeding port.

The first centrifugal pump is a fluoroplastic centrifugal pump.

The diazo kettle is provided with a 2-trifluoromethylaniline feeding port, a second water feeding port and an active carbon feeding port.

The second centrifugal pump is a fluoroplastic centrifugal pump.

The baking soda dissolving kettle is provided with a third water feeding port and a baking soda feeding port.

And the coupling kettle is provided with a fifth water feeding port and a sodium acetate feeding port.

The fourth centrifugal pump is a fluoroplastic centrifugal pump.

And the coupling component dissolving kettle is provided with a fourth water feeding port, a coupling component feeding port and a dispersing agent feeding port.

The third centrifugal pump is a fluoroplastic centrifugal pump.

The utility model has the advantages that:

1. the diazo liquid and the coupling liquid are simultaneously dripped into the buffer solution, and the pH value is adjusted by the sodium bicarbonate solution, so that the reaction is complete, the yield is high, and the product quality is good.

2. Adopts water phase high temperature pigmentation, and can obtain pigment yellow 154 with uniform and loose particles only by heating the water phase for pigmentation due to good pigment quality during synthesis.

In conclusion, the equipment has the advantages of simple operation, good product quality, low cost and less three wastes.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

in the figure, 1, a sodium nitrite dissolving kettle, 101, a first water feeding port, 102, a sodium nitrite feeding port, 2, a first centrifugal pump, 3, a sodium nitrite solution metering tank, 4, a diazo kettle, 41.2-trifluoromethylaniline feeding port, 42, a second water feeding port, 43, an activated carbon feeding port, 5, a hydrochloric acid metering tank, 6, a second centrifugal pump, 7, a diazo hydraulic filter, 8, a diazo solution receiving tank, 9, a coupling kettle, 91, a fifth water feeding port, 92, a sodium acetate feeding port, 10, a baking soda dissolving kettle, 1001, a third water feeding port, 1002, a baking soda feeding port, 11, a coupling solution metering tank, 12, a coupling component dissolving kettle, 121, a fourth water feeding port, 122, a coupling component feeding port, 123, a dispersant feeding port, 13, a liquid alkali metering tank, 14, a third centrifugal pump, 15, a fourth centrifugal pump, 16 and a diaphragm filter press are adopted.

Detailed Description

Referring to fig. 1, the pigment yellow 154 synthesis equipment in the figure comprises a sodium nitrite dissolution kettle 1, a first centrifugal pump 2, a sodium nitrite solution metering tank 3, a diazo kettle 4, a hydrochloric acid metering tank 5, a second centrifugal pump 6, a diazo hydraulic filter 7, a diazo liquid receiving tank 8, a coupling kettle 9, a baking soda dissolution kettle 10, a coupling liquid metering tank 11, a coupling component dissolution kettle 12, a liquid alkali metering tank 13, a third centrifugal pump 14, a fourth centrifugal pump 15 and a membrane filter press 16. The components are all existing components, the innovation point of the scheme is that the design of product production is completed by the connection relation of the components, corresponding valves are designed among the components, and the existing conventional components such as a material conveying pump are added according to needs.

The connection relation of the components is as follows:

the sodium nitrite dissolving kettle 1 sequentially passes through the first centrifugal pump 2, the sodium nitrite solution metering tank 3 and the inner cavity of the diazo kettle 4, and the conveying of materials is achieved through pipelines, so that the solution in the sodium nitrite dissolving kettle 1 is led into the diazo kettle 4 according to the set amount, wherein the sodium nitrite dissolving kettle 1 is provided with a first water feeding port 101 and a sodium nitrite feeding port 102, and the corresponding water and sodium nitrite materials are fed into the sodium nitrite dissolving kettle 1. The hydrochloric acid metering tank 5 and the inner cavity of the diazo kettle 1 achieve the material conveying by using a pipeline, and thus, the hydrochloric acid is introduced into the diazo kettle 4 to carry out diazo reaction with other substances. The diazo kettle 4 is provided with a 2-trifluoromethylaniline feeding port 41, a second water feeding port 42 and an activated carbon feeding port 43, so that corresponding materials are added according to the needs. The material outlet at the bottom of the diazo kettle 4 sequentially passes through a second centrifugal pump 6, a diazo hydraulic filter 7, a diazo liquid receiving tank 8 and the inner cavity of the coupling kettle 9 by using pipelines to convey the materials, so that the trifluoromethyl aniline diazonium salt generated after diazo reaction is introduced into the coupling kettle 9 to wait for reaction with other substances.

The sodium bicarbonate dissolving kettle 10 and the inner cavity of the coupling kettle 9 are communicated by a pipeline, so that the materials in the sodium bicarbonate dissolving kettle 10 are introduced into the coupling kettle 9 to adjust the pH value after the coupling reaction. The baking soda dissolving kettle 10 is provided with a third water feeding port 1001 and a baking soda feeding port 1002 for adding corresponding materials. The liquid caustic soda metering tank 13 sequentially passes through the coupling component dissolving kettle 12, the third centrifugal pump 14, the coupling liquid metering tank 11 and the inner cavity of the coupling kettle 9 through pipelines to convey materials, wherein the coupling component dissolving kettle 12 is provided with a fourth water feeding port 121, a coupling component feeding port 122 and a dispersing agent feeding port 123, and corresponding materials are added into the coupling component dissolving kettle 12. The coupling kettle 9 is also provided with a fifth water feeding port 91 and a sodium acetate feeding port 92, so that corresponding materials are added according to requirements. The bottom material outlet of the coupling kettle 9 is communicated with a membrane filter press 16 through a fourth centrifugal pump 15 by using a pipeline, so that the product is subjected to filter pressing, collection and bagging. The four centrifugal pumps are all fluoroplastic centrifugal pumps, so that corrosion is avoided.

Understanding the above connection relationships, such as communication or connection, will be understood by those skilled in the art from the description of the embodiment and the representation in fig. 1, and the embodiment expressed by the present idea will be clearly understood by those skilled in the art from the description of the embodiment and the representation in fig. 1.

The operation process and principle of the scheme are as follows:

200kg of water and 109kg of sodium nitrite are added into a sodium nitrite dissolution kettle 1, stirred to be fully dissolved, and pumped to a sodium nitrite solution metering tank 3 by a first centrifugal pump 2 for standby.

Adding 3000kg of water into a diazo kettle 4, adding 300kg of hydrochloric acid from a hydrochloric acid metering tank 5, starting stirring, adding 250kg of 2-trifluoromethylaniline, pulping, stirring, dissolving, adding ice, cooling to-2-0 ℃, quickly adding a sodium nitrite solution into a sodium nitrite solution metering tank 3 for diazotization, controlling the reaction temperature below 5 ℃ by adding ice during the reaction, and reacting for 0.5-1h until the potassium iodide starch test paper is bluish. Then 5kg of activated carbon is added, stirred for 15 minutes, pumped to a diazo hydraulic filter 7 by a second centrifugal pump 6 for filter pressing, and the diazo liquid is collected in a diazo liquid receiving tank 8 for standby.

1000kg of water is added into a baking soda dissolving kettle 10, stirring is started, 200kg of baking soda is added, stirring is carried out until the baking soda is completely dissolved, and standing is carried out for standby.

Adding 2000kg of water into a coupling component dissolving kettle 12, adding 5kg of dispersing agent, starting stirring, adding 370kg of 5-acetoacetylaminobenzimidazolone, pulping for 1 hour, starting to drop liquid alkali from a liquid alkali metering tank 13, adjusting the pH value to 7 after the 5-acetoacetylaminobenzimidazolone is completely dissolved, and then beating the coupling liquid to a coupling liquid metering tank 11 through a third centrifugal pump for later use.

Adding 1000kg of water, 2kg of emulsifier and 2kg of EDTA (ethylene diamine tetraacetic acid) for removing iron ions into a coupling kettle 9, starting stirring, adding 300kg of sodium acetate, after the sodium acetate is completely dissolved, beginning to drip the coupling liquid from a coupling liquid metering tank 11, dripping heavy nitrogen liquid from a diazo liquid receiving tank 8 to the coupling kettle 9 for coupling reaction, and beginning to drip baking soda solution from a baking soda dissolving kettle 10 to keep the pH of the coupling liquid at about 7 and the coupling component micro-excess, keeping the temperature at 5-10 ℃, keeping the temperature for 1 hour after the coupling is finished, heating to 50 ℃, keeping the temperature for half an hour, pumping to a membrane filter press 16 through a fourth centrifugal pump, drying, washing with a small amount of water.

Then the plate is removed to obtain a crude product of the pigment yellow 154, 1000kg of water is added into a coupling kettle 9, the crude product of the pigment yellow 154 is added, the mixture is pulped for 1 hour, the volume is adjusted to 4000L, the mixture is pulped for 1 hour, then the temperature is raised to 90 ℃, and the temperature is kept for 1 hour.

Then the mixture is pressed to a membrane filter press 16 by a fourth centrifugal pump 15, pressed to be dry and washed to be neutral, and pigment yellow 154 is obtained.

The reaction equation used in this example is:

1. diazotization:

wherein the content of the first and second substances,

is 2-trifluoromethyl aniline, and the compound is shown in the specification,

is trifluoromethyl aniline;

2. coupling:

wherein the content of the first and second substances,

is 5-acetoacetylaminobenzimidazolone,

pigment yellow 154.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the above description, in combination with the drawings in the embodiments of the present invention, clearly and completely describes the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. Pigment yellow 154 synthesis equipment, which is characterized in that: the device comprises a sodium nitrite dissolving kettle, a first centrifugal pump, a sodium nitrite solution metering tank, a diazo kettle, a hydrochloric acid metering tank, a second centrifugal pump, a diazo hydraulic filter, a diazo liquid receiving tank, a coupling kettle, a baking soda dissolving kettle, a coupling liquid metering tank, a coupling component dissolving kettle, a liquid alkali metering tank, a third centrifugal pump, a fourth centrifugal pump and a diaphragm filter press; the sodium nitrite dissolving kettle is communicated with the inner cavity of the diazo kettle through a first centrifugal pump and a sodium nitrite solution metering tank in sequence; the hydrochloric acid metering tank is communicated with the inner cavity of the diazo kettle; a material outlet at the bottom of the diazo kettle is communicated with the inner cavity of the coupling kettle sequentially through a second centrifugal pump, a diazo hydraulic filter and a diazo liquid receiving tank; the sodium bicarbonate dissolving kettle is communicated with the inner cavity of the coupling kettle; the liquid caustic soda metering tank is communicated with the inner cavity of the coupling kettle sequentially through the coupling component dissolving kettle, the third centrifugal pump and the coupling liquid metering tank; and a material outlet at the bottom of the coupling kettle is communicated with the membrane filter press through a fourth centrifugal pump.

2. The pigment yellow 154 synthesis apparatus of claim 1, wherein: the sodium nitrite dissolution kettle is provided with a first water feeding port and a sodium nitrite feeding port.

3. The pigment yellow 154 synthesis apparatus of claim 1, wherein: the first centrifugal pump is a fluoroplastic centrifugal pump.

4. The pigment yellow 154 synthesis apparatus of claim 1, wherein: the diazo kettle is provided with a 2-trifluoromethylaniline feeding port, a second water feeding port and an active carbon feeding port.

5. The pigment yellow 154 synthesis apparatus of claim 1, wherein: the second centrifugal pump is a fluoroplastic centrifugal pump.

6. The pigment yellow 154 synthesis apparatus of claim 1, wherein: the baking soda dissolving kettle is provided with a third water feeding port and a baking soda feeding port.

7. The pigment yellow 154 synthesis apparatus of claim 1, wherein: and the coupling kettle is provided with a fifth water feeding port and a sodium acetate feeding port.

8. The pigment yellow 154 synthesis apparatus of claim 1, wherein: the fourth centrifugal pump is a fluoroplastic centrifugal pump.

9. The pigment yellow 154 synthesis apparatus of claim 1, wherein: and the coupling component dissolving kettle is provided with a fourth water feeding port, a coupling component feeding port and a dispersing agent feeding port.

10. The pigment yellow 154 synthesis apparatus of claim 1, wherein: the third centrifugal pump is a fluoroplastic centrifugal pump.