CN109439023A - A technique for functional filler production is carried out using red mud - Google Patents
A technique for functional filler production is carried out using red mud Download PDFInfo
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- CN109439023A CN109439023A CN201811315787.5A CN201811315787A CN109439023A CN 109439023 A CN109439023 A CN 109439023A CN 201811315787 A CN201811315787 A CN 201811315787A CN 109439023 A CN109439023 A CN 109439023A
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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
- C09C1/40—Compounds of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K11/00—Use of ingredients of unknown constitution, e.g. undefined reaction products
- C08K11/005—Waste materials, e.g. treated or untreated sewage sludge
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
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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
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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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
- C09C3/10—Treatment with macromolecular organic compounds
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Processing Of Solid Wastes (AREA)
Abstract
A technique for functional filler production is carried out using red mud, required process is as follows, A: using cyclosizer, surge-tank, Pulp pump, underflow slot, overflow launder, carries out cyclone classification processing to red mud raw material, obtains lower than 400 mesh partial size red mud micro mists and is higher than 400 mesh partial size raw materials；B: the aqueous red mud micro mist that process A is obtained is evaporated using scroll feeder, drying machine, hot-blast stove, drying obtains powdery red mud micro mist, it is handled for being higher than 400 mesh partial size raw materials using scroll feeder, crushing drying equipment, high pressure blower, more rotor vertical air flow graders, pneumatic conveying dryer, with powdery red mud micro mist together as the raw materials for production of rubber filling after progress powder processing；C: using height batch mixer as processing equipment, stearic acid, modified paraffin are used as auxiliary material, the powdery red mud micro mist that step B, C obtains is processed into rubber filling.The present invention all efficiently uses red mud resource, protects ecological environment, has saved soil.
Description
Technical field
The present invention relates to red mud processing method field, especially a kind of skill that functional filler production is carried out using red mud
Art.
Background technique
Red mud is the solid slag discharged during producing aluminium oxide etc., is gained the name because appearance is aobvious red.By production oxygen
The difference for changing bauxitic feed materials composition of ores and alumina-producing method that aluminium uses, produces the chemistry and mine of red mud after aluminium oxide
Object composition has big difference very much.Bauxite mainly has Indonesia, Malaysia, Ao Zhoukuang at present, produces in aluminium oxide process, and general use is visitd
Ear method or sintering process, the type of red mud is divided into Bayer process red mud and two kinds of red mud from sintering process after production.Either use Bayer
Method or sintering process produce aluminium oxide, and 1 ton of aluminium oxide of every production about gives off 1.0~1.8 tons of red mud.
Currently, byproduct red mud is in stockpiling state after most of manufacturers will produce aluminium oxide, red mud pilling can divide
It is stored up for dry piling and wet type.Either dry piling or wet type stockpiling, the stacking processing of red mud not only need to expend big
The soil of amount, while the construction and maintenance in stockyard are also required to spend a large amount of expense, a large amount of exposed red muds are long and long in stockyard
Just will form dust, fly upward with the wind, pollute atmosphere, people's lives are caused to compare severely impact, also to animals and plants
Existence causes immeasurable negative effect, deteriorates the ecological environment on periphery.Since red mud has, aqueous height, retentiveness is strong, contains
Alkali height and the features such as partial size is smaller, bad dispersibility, up to the present, does not find an ideal processing mode still both at home and abroad.
At present to the application of red mud, only handle lower than 400 mesh partial size red muds below, for the production as cement etc.
Raw material uses, and is of limited application, research has shown that, the part on 400 mesh partial sizes is mainly red with siliceous minerals such as quartz sands
Based on iron ore, the more difficult grinding processing of these hardness of mineral height, therefore the red mud for being actually higher than 400 mesh or more still can not be effectively big
Amount utilizes, and causes the pollution of environment and the waste of resource.
Based on above-mentioned, a kind of production method is provided, raw materials for production of the red mud as other products, nothing can be all efficiently used
Strong technical support can be provided to protection environment and resource reutilization by doubting.
Summary of the invention
In order to overcome during existing red mud processes, 400 mesh partial size red muds below can only be carried out using there are the drawbacks of,
The present invention provides being handled using advanced processing equipment and technology red mud, at 400 mesh partial size above section crushing
Raw materials for production (red mud filler) after partially being handled after reason and below 400 mesh partial sizes as rubber filling, rubber filling conduct
The raw materials for production of plastics etc. all efficiently use red mud resource to reach, protect environment, and can obtain preferable economy
A kind of technology that functional filler production is carried out using red mud of benefit.
The technical solution adopted by the present invention to solve the technical problems is:
A technique for functional filler production being carried out using red mud, it is characterised in that required process is as follows, A: using rotation
Current classifier, surge-tank, Pulp pump, underflow slot, overflow launder carry out cyclone classification processing to red mud raw material, obtain lower than 400 mesh
It sieves partial size red mud micro mist and is higher than 400 mesh partial size raw materials；B: process A is obtained using scroll feeder, drying machine, hot-blast stove
Aqueous red mud micro mist evaporation, drying obtain powdery red mud micro mist, for be higher than 400 mesh partial size raw materials use screw feed
Device, crushing drying equipment, high pressure blower, more rotor vertical air flow graders, pneumatic conveying dryer are handled, and are carried out powder and are added
With powdery red mud micro mist together as the raw materials for production of rubber filling after work；C: using height batch mixer as processing equipment, make
Stearic acid, modified paraffin are used as auxiliary material, the powdery red mud micro mist that step B, C obtains is processed into rubber filling, stearic acid
Raw material can also use aluminate coupling agent.
In the step A, first the red mud raw material that stockyard is excavated is put into surge-tank, water is added to be slurried, admittedly contain concentration
17-18g/l is controlled, then raw material is squeezed into Pulp pump and carries out cyclone classification processing in cyclosizer, according to processing needs
400 mesh partial sizes, 500 mesh partial sizes can be used for classification circle's point, after cyclosizer classification, higher than of 400 mesh partial sizes
Grain enters in underflow slot, individually handles after filters pressing separates, and filtrate returns in surge-tank as seasoning liquid and is recycled, and is lower than
The particle of 400 mesh partial sizes enters overflow launder by overflow, obtains after filters pressing separation micro- lower than the aqueous red mud of 400 mesh partial sizes
Powder.
In the step B, cyclone classification is dewatered to be lower than 400 mesh partial size red mud particles, feeds through scroll feeder
Drying machine, red mud material are mixed in drying machine with the hot wind that hot-blast stove provides, and are evaporated moisture and are broken up and obtain powdery in powdery
Red mud micro mist；When for being higher than 400 mesh partial size feedstock processing, raw material, which enters to crush in drying equipment through scroll feeder, to be carried out
Processing, the hot-air air distribution plate of pneumatic conveying dryer it is the allocated enter crush drying equipment hothouse in, and high speed rotation to
Upper movement, in the case where crushing the grinder of drying equipment, the collective effect of high pressure blower swirling eddy, material is pulverized, refines, point
Fluidization is dissipated, is dried simultaneously, material is dried to as powdery product, and it is vertical then to ascend into more rotors with gas spiral
It is screened in formula gas flow sizing machine, according to the red mud micro mist for requiring gradable each particle size range out, more rotor vertical gas flow points
Particle after grade machine classification is collected through loading head, and dusty gas is filtered through bag collector and emptied, and the dust of collection is as high level-one
Red mud micro mist, can be obtained after processing using 800 mesh partial sizes as leading products micro mist two, quantum of output 75%, while output grain
Spend 400-800 mesh partial size micro mist one, quantum of output 20%；The above micro mist three of 2500 mesh partial size of granularity, quantum of output 5%；?
To the obtained powdery red mud micro mist of red mud micro mist one, red mud micro mist two, red mud micro mist three, high level-one red mud micro mist and process B
Together as the raw materials for production of rubber filling.
In the step C, using in height batch mixer be used as processing equipment, red mud micro mist one, the red mud that step B is obtained
The powdery red mud micro mist that micro mist two, red mud micro mist three, high level-one red mud micro mist and process B obtain first pours into high mixing machine, so
Stearic acid, modified paraffin are added thereto in 1% to 3% ratio afterwards, be sufficiently mixed uniformly, temperature does not surpass when height is mixed
120 degree are crossed, being cool below 25 degree by water when low mixed can discharge, and produce functional red mud filler, and red mud filler has
Dispersibility, compatibility well.
The medicine have the advantages that the present invention is handled red mud using advanced processing equipment and technology, 400 meshes
Raw materials for production (red mud after partially being handled after partial size above section pulverization process and below 400 mesh partial sizes as rubber filling
Filler), raw materials for production of the rubber filling as plastics etc., what is obtained can also directly dry progress higher than 400 mesh partial size raw materials
High iron ore sale.After the present invention is used as the filler of plastics-production, the alkali in red mud is released when can thermally decompose with PVC (plastics)
HCl (hydrogen chloride) gas react, to inhibit the degradation and decomposition of PVC, common PVC product uses 8 Nian Houqiang outdoor
Degree safety loses, and the plastics for adding red mud still remain good mechanical property for a long time, has no aging phenomenon, or even strong
Degree is increased, this also embodies excellent function of the red mud as plastic filler.The present invention reaches all effective to red mud resource
It utilizes, protects ecological environment, saved soil, both had an economic benefit or have a social benefit.Based on above-mentioned, so the present invention has
The application prospect having had.
Detailed description of the invention
The present invention is described further with reference to the accompanying drawings and examples.
Fig. 1 is flow diagram of the present invention.
Specific embodiment
Shown in Fig. 1, a technique for functional filler production being carried out using red mud, required process is as follows, A: using rotation
Current classifier, surge-tank, Pulp pump, underflow slot, overflow launder carry out cyclone classification processing to red mud raw material, obtain lower than 400 mesh
It sieves partial size red mud micro mist and is higher than 400 mesh partial size raw materials；B: using scroll feeder, strong drying machine, hot-blast stove by process A
The obtained evaporation of aqueous red mud micro mist, drying obtains powdery red mud micro mist, is fed for being higher than 400 mesh partial size raw materials using spiral
Glassware, powerful smashing drying equipment, high pressure blower, more rotor vertical air flow graders, forced airflow drying equipment are handled,
With powdery red mud micro mist together as the raw materials for production of rubber filling after progress powder processing；C: using height batch mixer as at
Equipment is managed, uses stearic acid, modified paraffin that the powdery red mud micro mist that step B, C obtains is processed into rubber and plastic as auxiliary material and fills out
Material, stearic acid raw material can also use aluminate coupling agent.
Shown in Fig. 1, in step A, first the red mud raw material that stockyard is excavated is put into surge-tank, water is added to be slurried, Gu
17-18g/l is controlled containing concentration, then raw material is squeezed into Pulp pump and carries out cyclone classification processing in cyclosizer, according to adding
Work needs can be used 400 mesh partial sizes, 500 mesh partial sizes and is higher than 400 mesh grains after cyclosizer classification for classification circle's point
The particle of diameter enters in underflow slot, individually handles after filters pressing separates, and filtrate returns in surge-tank as seasoning liquid and is recycled,
Particle lower than 400 mesh partial sizes enters overflow launder by overflow, obtains after filters pressing separation aqueous red lower than 400 mesh partial sizes
Mud micro mist.
Shown in Fig. 1, in step B, cyclone classification is dewatered to be lower than 400 mesh partial size red mud particles, through screw feed
Device feeds strong drying machine, and red mud material mixes with the hot wind that hot-blast stove provides in strong drying machine, evaporates moisture and break up
Powdery red mud micro mist is obtained in powdery；When for being higher than 400 mesh partial size feedstock processing, raw material enters strength through scroll feeder
It crushes and is handled in drying equipment, the hot-air of forced airflow drying equipment enters powerful smashing drying through air distribution plate distribution and sets
In standby hothouse, and high speed rotation moves upwards, in the grinder of powerful smashing drying equipment, high pressure blower swirling eddy
Under collective effect, material is dispersed fluidization, is dried simultaneously, material is dried to as powdered products by powerful smashing, refinement
Product are then ascended into more rotor vertical air flow graders with gas spiral and are screened, according to require it is gradable go out each grain
The red mud micro mist of diameter range, the particle after more rotor vertical air flow grader classifications are collected through loading head, and dusty gas is received through bag
The filtering emptying of dirt device, the dust of collection can be obtained as higher leveled red mud micro mist after processing with 800 mesh partial sizes as main artificial delivery
Product micro mist two, quantum of output 75%, while output granularity 400-800 mesh partial size micro mist one, quantum of output 20%；Granularity 2500
The above micro mist three of mesh partial size, quantum of output 5%；Obtained red mud micro mist one, red mud micro mist two, red mud micro mist three, high level-one are red
The raw materials for production of mud micro mist and powdery red mud micro mist together as rubber filling.
Shown in Fig. 1, using processing equipment is used as in height batch mixer, red mud micro mist one, the red mud that step B is obtained are micro-
The powdery red mud micro mist that powder two, red mud micro mist three, high level-one red mud micro mist and process B obtain first pours into high mixing machine, then
Stearic acid, modified paraffin are added thereto in 1% to 3% ratio, be sufficiently mixed uniformly, temperature is no more than when height is mixed
120 degree, being cool below 25 degree by water when low mixed can discharge, and produce functional red mud filler, and red mud filler has very
Dispersibility well, compatibility.Red mud micro mist as rubber filling key be solve red mud micro mist dispersibility and with rubber, plastics
The surface activation techniques of the compatibility of equal basis materials, red mud micro mist carry out table using stearic acid or aluminate coupling agent material
Face activation, plays surface oleophylic not hydrophilic interaction, conducive to the Quality advance of plastics；Using modified paraffin as special lubrication
And (modified paraffin is the improved maleic anhydride of crosslinking technology to dispersant material, and grafting rate is higher than 1%, is better than same kind of products at abroad
Grafting rate) as a variety of combination inorganic material hydroxyl, the carboxyls being easy to itself contained in matrix and red mud, play sufficiently
Compatible role, while neutralizing the free alkali in red mud, therefore, the rigidity and other characteristics of red mud can be given full play of,
And do not influence the toughness of plastic matrix material.
Shown in Fig. 1, the powerful smashing drying equipment that the present invention uses, working principle is granular material by screw feeding
Hothouse is added in device, and the hot-air of forced airflow drying equipment enters the drying of powerful smashing drying equipment through air distribution plate distribution
Room, and after high speed rotation moves upwards, in the collective effect of the grinder of powerful smashing drying equipment, high pressure blower swirling eddy
Under, material is dispersed fluidization, is dried simultaneously by powerful smashing, refinement.Forced airflow drying equipment is set in rotary flash distillation
It is improved on the basis of standby, the spreading disk of flashing apparatus is changed to high speed rotor, has certain pulverization that can beat red mud
More disperse, more preferable with the effect of hot air, to reduce the energy consumption of crushing, drying, comparing than flashing apparatus can be reduced
30% or so.More rotor vertical air flow graders, general grader separate 400 mesh of fineness highest, are unable to satisfy micron order powder
The production of body, it is domestic at present for the above micro mist production of 2000 mesh, mostly use horizontal scroll gas flow sizing machine.The present invention uses
Vertical more rotor gas flow sizing machines, can be used for the production of 5000 mesh powder body materials, can be realized the life of high mesh number powder body material
It produces, compared to horizontal more rotor gas flow sizing machines of same rotor bank, production capacity improves 30%, and power consumption reduces by 30%.
Shown in Fig. 1, the present invention is handled red mud using advanced processing equipment and technology, 400 mesh partial sizes with
Raw materials for production (red mud filler) after partially being handled after upper part pulverization process and below 400 mesh partial sizes as rubber filling,
Raw materials for production of the rubber filling as plastics etc., can also directly drying higher than 400 mesh partial size raw materials for obtaining carry out high iron ore
Sale.After the present invention is used as the filler of plastics-production, HCl that alkali in red mud is released when can thermally decompose with PVC (plastics)
(hydrogen chloride) gas reacts, thus inhibit the degradation and decomposition of PVC, common PVC product Strength Safety after outdoor use 8 years
It loses, and the plastics for adding red mud still remain good mechanical property for a long time, have had no aging phenomenon or even intensity
Increase, this also embodies excellent function of the red mud as plastic filler.The present invention, which reaches, all efficiently uses red mud resource, protects
Ecological environment has been protected, soil has been saved, both had an economic benefit or has had a social benefit.Based on above-mentioned, so what the present invention had had
Application prospect.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above, for this field skill
For art personnel, it is clear that the present invention is limited to the details of above-mentioned exemplary embodiment, and without departing substantially from spirit or base of the invention
In the case where eigen, the present invention can be realized in other specific forms.It therefore, in all respects, should all be by reality
Apply example and regard exemplary as, and be non-limiting, the scope of the present invention by appended claims rather than above description
It limits, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.
Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of technology for carrying out functional filler production using red mud, it is characterised in that required process is as follows, A: using eddy flow
Grader, surge-tank, Pulp pump, underflow slot, overflow launder carry out cyclone classification processing to red mud raw material, obtain lower than 400 meshes
Partial size red mud micro mist and be higher than 400 mesh partial size raw materials；B: process A is obtained using scroll feeder, drying machine, hot-blast stove
The evaporation of aqueous red mud micro mist, drying obtain powdery red mud micro mist, for be higher than 400 mesh partial size raw materials using scroll feeder,
It crushes drying equipment, high pressure blower, more rotor vertical air flow graders, pneumatic conveying dryer to be handled, carries out powder processing
Afterwards with powdery red mud micro mist together as the raw materials for production of rubber filling；C: it using height batch mixer as processing equipment, uses
The powdery red mud micro mist that step B, C obtains is processed into rubber filling as auxiliary material by stearic acid, modified paraffin, and stearic acid is former
Material can also use aluminate coupling agent.
2. a kind of technology for carrying out functional filler production using red mud according to claim 1, it is characterised in that step A
In, first the red mud raw material that stockyard is excavated is put into surge-tank, water is added to be slurried, admittedly 17-18g/l is controlled containing concentration, then
Raw material is squeezed into Pulp pump and carries out cyclone classification processing in cyclosizer, according to processing need can be used 400 mesh partial sizes,
500 mesh partial sizes are classification circle's point, and after cyclosizer classification, the particle higher than 400 mesh partial sizes enters in underflow slot, through pressing
It is individually handled after filter separation, filtrate returns in surge-tank as seasoning liquid and is recycled, and the particle lower than 400 mesh partial sizes passes through
Overflow enters overflow launder, obtains the aqueous red mud micro mist lower than 400 mesh partial sizes after filters pressing separation.
3. a kind of technology for carrying out functional filler production using red mud according to claim 1, it is characterised in that step B
In, cyclone classification is dewatered to be lower than 400 mesh partial size red mud particles, feeds drying machine through scroll feeder, red mud material exists
Drying machine is mixed with the hot wind that hot-blast stove provides, and is evaporated moisture and is broken up and obtains powdery red mud micro mist in powdery；For being higher than
When 400 mesh partial size feedstock processing, raw material, which enters to crush in drying equipment through scroll feeder, to be handled, pneumatic conveying dryer
Hot-air air distribution plate it is the allocated enter in the hothouse for crushing drying equipment, and high speed rotation moves upwards, and is crushing drying
Under the grinder of equipment, the collective effect of high pressure blower swirling eddy, material is pulverized, refines, and disperses fluidization, carries out simultaneously
Dry, material is dried to as powdery product, then with gas spiral ascend into more rotor vertical air flow graders into
Row screening, the particle according to the red mud micro mist for requiring gradable each particle size range out, after more rotor vertical air flow graders classifications
It is collected through loading head, dusty gas is filtered through bag collector and emptied, and the dust of collection is as higher leveled red mud micro mist, after processing
It can be obtained using 800 mesh partial sizes as leading products micro mist two, quantum of output 75%, while output granularity 400-800 mesh partial size
Micro mist one, quantum of output 20%；The above micro mist three of 2500 mesh partial size of granularity, quantum of output 5%；It is obtained red mud micro mist one, red
The powdery red mud micro mist that mud micro mist two, red mud micro mist three, high level-one red mud micro mist and process B obtain is together as rubber filling
Raw materials for production.
4. a kind of technology for carrying out functional filler production using red mud according to claim 1, it is characterised in that step C
In, using in height batch mixer be used as processing equipment, the red mud micro mist one that step B is obtained, red mud micro mist two, red mud micro mist
Three, the powdery red mud micro mist that high level-one red mud micro mist and process B obtain first pours into high mixing machine, then by stearic acid, modification
Paraffin is added thereto in 1% to 3% ratio, be sufficiently mixed uniformly, when height is mixed, temperature is no more than 120 degree, when low mixed
Being cool below 25 degree by water can discharge, and produce functional red mud filler, and red mud filler has dispersibility, phase well
Capacitive.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031898A (en) * | 2021-06-09 | 2022-02-11 | 中国科学院兰州化学物理研究所 | Aminated dealkalized red mud material, aminated dealkalized red mud toughened epoxy resin composite material and preparation method |
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