CN108940553A - A kind of ore crushing grinding aid special - Google Patents
A kind of ore crushing grinding aid special Download PDFInfo
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- CN108940553A CN108940553A CN201810797414.XA CN201810797414A CN108940553A CN 108940553 A CN108940553 A CN 108940553A CN 201810797414 A CN201810797414 A CN 201810797414A CN 108940553 A CN108940553 A CN 108940553A
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- grinding aid
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- crushes
- graphene oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
Abstract
The invention discloses a kind of ores to crush grinding aid special, belongs to technical field of mineral processing.It includes surfactant, ammonium nitrate, inorganic salts, crystallization hydrate, coupling agent, isocyanates and amino graft modification graphene oxide that the ore that the present invention develops, which crushes grinding aid special, surfactant, ammonium nitrate, inorganic salts, crystallization hydrate, coupling agent and amino graft modification graphene oxide are first mixed and are poured into batch mixer by the present invention, and the dehydrated alcohol of 1.0~2.0 times of inorganic salt quality is added, under the conditions of temperature is 10~20 DEG C, after being stirred 2~4h, vacuum freeze drying obtains mixture；Again by mixture and isocyanates under the conditions of temperature is 4~6 DEG C, after being stirred, discharging crushes grinding aid special to get ore.The ore of technical solution of the present invention preparation, which crushes grinding aid special, has the characteristics that excellent grinding efficiency, has broad prospects in the development of mineral processing technology industry.
Description
Technical field
The invention discloses a kind of ores to crush grinding aid special, belongs to technical field of mineral processing.
Background technique
Grinding process is the very high operation of energy consumption, especially when needing to carry out fine grinding and Ultrafine Grinding to mineral, energy
It consumes higher.Statistical result shows that the electric energy of grinding consumption accounts for about the 5% of current year power generation total amount；In investment, grinding operation accounts for whole
60% or so of a dressing plant's investment；The power consumption of grinding operation accounts for about the 30%~70% of full factory's investment, and production and operation expense also accounts for entirely
Factory's investment 40%~50%；Technically, main problem existing for grinding operation is exactly energy consumption height, low efficiency.Therefore, ore grinding is reduced
The energy consumption of energy consumption, particularly fine grinding and Ultra-fine grinding is of great significance.Adding grinding aid in ore grinding can be to a certain extent
Reduce ore grinding energy consumption, the grinding efficiency obtained.Reinforce the research of the mechanism of action of grinding process grinding aid, the choosing to grinding aid
It selects and using being of great significance.
The crushing of raw material is an essential process in mineral process, and crush be a high energy consumption, it is inefficient
The operation process of rate, such as the levigate power consumption of ceramic industry chats raw material account for about the 2/3 of the total power consumption of full factory of ceramics factory, but efficiency
It but is only 1% even lower, most input energy is for generating heat, useless impact, extruding, abrasion, electrostatic energy, bullet
Property and plastic deformation and noise.And this is used for 1% electric energy of grinding, and due in grinding process, with the increase of grinding fineness
And specific surface area is caused to increase, the adhesion strength or interfacial tension of powder increase with it, and the crack that particle can be made to have generated is cured again
It closes, qualified fine powder generates cushion, cut down impact, grinding energy in mill due to that cannot draw off in time；In addition, particle is disconnected
Free electrovalent bond when splitting on generated new surface drives adjacent particles to adhere to each other and assemble.It is all these all to seriously affect
The mill efficiency of milling equipment, greatly reduces capacity usage ratio.Therefore, raw material fine grinding efficiency is improved, is had to energy-saving
Important realistic meaning.Traditional mineral grinding aid generally uses such as sodium carbonate, sodium metasilicate, sodium phosphate inorganic salts, and
The inorganic salts of some amines.These grinding aids have preferable grinding-aid effect to a certain extent, but because its sphere of action is limited,
It is often only preferable to certain raw material effect.
And traditional ore crushes therefore how the grinding aid special problem bad there is also grinding-aid effect makes mineral powder
Broken grinding aid special, which plays better performance, becomes the art one of the technical problems that are urgent to solve.
Summary of the invention
The present invention solves the technical problem of: grinding-aid effect existing for grinding aid special is crushed for traditional ore
Bad disadvantage provides a kind of ore crushing grinding aid special.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of ore crushing grinding aid special, the raw material including following parts by weight:
3~5 parts of surfactant
4~8 parts of ammonium nitrate
30~40 parts of inorganic salts
8~10 parts of hydrate of crystallization
2~3 parts of coupling agent
4~6 parts of isocyanates
8~10 parts of amino graft modification graphene oxide
The ore crushes the process for preparation of grinding aid special are as follows:
(1) each component is weighed by raw material composition；
(2) by surfactant, ammonium nitrate, inorganic salts, crystallization hydrate, coupling agent and amino graft modification graphene oxide
Mixing is poured into batch mixer, and the dehydrated alcohol of 1.0~2.0 times of inorganic salt quality is added, under the conditions of temperature is 10~20 DEG C,
After being stirred 2~4h, vacuum freeze drying obtains mixture；
(3) by mixture and isocyanates under the conditions of temperature is 4~6 DEG C, after being stirred, discharging crushes special to get ore
Use grinding aid.
The surfactant is in neopelex, cetyl trimethylammonium bromide or sodium lignin sulfonate
Any one.
The inorganic salts are that aluminium chloride and sodium thiosulfate are that 3:1~10:1 is mixed in mass ratio.
The crystallization hydrate is that Disodium sulfate decahydrate, green vitriol and 12 hydrazine aluminum sulfate potassium press quality
Than being compounded for 10:1:1.
The coupling agent is any one in silane coupling agent, aluminate coupling agent or titanate coupling agent.
The isocyanates is toluene di-isocyanate(TDI), methyl diphenylene diisocyanate or trimethyl cyclohexane diisocyanate
Any one in ester.
The modifying process of the amino graft modification graphene oxide are as follows: by the dimethyl of graphene oxide and sodium azide
Formamide solution is after reaction is mixed in 1:8~1:10, to add 0.4~0.5 times of graphene oxide quality in mass ratio
Lithium aluminium hydride reduction continues after being stirred to react, filtering, and washing and drying obtain amino graft modification graphene oxide.
The beneficial effects of the present invention are:
(1) technical solution of the present invention passes through addition ammonium nitrate, inorganic salts, crystallization hydrate, isocyanates and modified oxidized
A variety of active principles such as graphene play good grinding-aid effect by mutual synergistic effect；In product use process
In, since mechanical lapping can generate a large amount of heat, the heat of generation can be used as " fuse cord " for causing a series of complex reaction,
First happens is that the crystallization water in crystallization hydrate is changed into the process of free water, free water generate can in system
Isocyanates is contacted and is reacted, and generates carbon dioxide gas, and the generation of gas, which can not only be played, improves body in process of lapping
It is the effect of mobility, the reunion again of slag particle can also be effectively avoided in crushing process, to effectively improves grinding
Efficiency；In addition the accumulation of the heat generated with grinding, internal local temperature is further up, so as to cause the decomposition of ammonium nitrate
And the melting of lower melting-point inorganic salts, wherein ammonium nitrate is decomposed into violent exothermic reaction, can be in a heated condition
Explosion type occurs to decompose, to be conducive to the quick disintegration of ore in process of lapping, in addition, the explosion type decomposition of its part can produce
Raw certain air pressure further promotes grinding efficiency, wherein fusing point to be conducive to scattering and permeating of the grinding aid in system
Lower inorganic salts, i.e. sodium thiosulfate and aluminium chloride can effectively improve the mobility of system after melted by heating, in addition, its
Partly because temperature reduces and is covered on the ore particles surface of refinement again after heat loss in transfer process after melting, thus
So that the electronic state on solid mineral surface is changed, eliminates or weaken solid particle and form after section that adhesion and aggregation becomes again
Gesture reduces a possibility that section heals again, and increases the specific surface area of solid matter, keeps powder granule finer and smoother, separately
Outside, the hardness that the absorption package of lower melting-point inorganic salts can lead to mineral particle surface reduces, and is conducive to subsequent process of lapping
In further refinement；
(2) technical solution of the present invention aoxidizes stone by the graphene oxide of addition amino graft modification as one of effective component
Black alkene can play good lubricant effect during the grinding process, and not only had amino in its structure but also had carboxyl, and no matter is the two
Be under acid system or alkaline system, after one of group is ionized, can make graphene oxide layer structure because
It is mutually exclusive with like charges, to make its fine dispersion in system, and attract each other with the opposite charges in system,
It is set effectively to be adsorbed on abrasive media, milling apparatus surface effectively prevents ore raw materials in abrasive media and milling apparatus table
The adherency in face further increases grinding efficiency, promotes grinding yield.
Specific embodiment
In mass ratio it is 1 by the dimethyl formamide solution of sodium azide that graphene oxide and mass fraction are 4~6%:
8~1:10 mixing is poured into reaction kettle, under the conditions of supersonic frequency is 65~70kHz, after 30~40min of ultrasonic disperse, and Yu Wen
Degree is 70~85 DEG C, under the conditions of revolving speed is 600~800r/min, after constant temperature is stirred to react 2~3h, adds graphene oxide matter
The lithium aluminium hydride reduction of 0.4~0.5 times of amount is 75~85 DEG C in temperature, and under the conditions of revolving speed is 600~800r/min, constant temperature stirring is anti-
After answering 3~5h, filtering obtains filter cake, and gained filter cake is dried in vacuo, obtains amino graft modification graphene oxide；By weight
Number meter, successively takes 3~5 parts of surfactants, 4~8 parts of ammonium nitrate, 30~40 parts of inorganic salts, 8~10 parts of crystallization hydrates, and 2
~3 parts of coupling agents, 8~10 parts of amino graft modification graphene oxides, first by surfactant, ammonium nitrate, inorganic salts, the crystallization water
Compound, coupling agent and the mixing of amino graft modification graphene oxide are poured into batch mixer, and be added inorganic salt quality 1.0~
2.0 times of dehydrated alcohol is then 10~20 DEG C in temperature, and under the conditions of revolving speed is 400~600r/min, constant temperature is stirred 2
After~4h, discharging, vacuum freeze drying obtains mixture；Gained mixture and isocyanates are poured into batch mixer again, in temperature
It is 4~6 DEG C, under the conditions of revolving speed is 800~1200r/min, after low temperature is stirred 4~6h, discharging crushes dedicated to get ore
Grinding aid.The surfactant is in neopelex, cetyl trimethylammonium bromide or sodium lignin sulfonate
Any one.The inorganic salts are that aluminium chloride and sodium thiosulfate are that 3:1~10:1 is mixed in mass ratio.The crystallization
Hydrate be Disodium sulfate decahydrate, green vitriol and 12 hydrazine aluminum sulfate potassium be in mass ratio 10:1:1 compounding and
At.The coupling agent is any one in silane coupling agent, aluminate coupling agent or titanate coupling agent.The isocyanates
Any one for toluene di-isocyanate(TDI), in methyl diphenylene diisocyanate or trimethylhexane diisocyanate.
It is in mass ratio 1:10 by the dimethyl formamide solution of sodium azide that graphene oxide and mass fraction are 6%
Mixing is poured into reaction kettle, is 85 DEG C in temperature, revolving speed is after ultrasonic disperse 40min under the conditions of supersonic frequency is 70kHz
Under the conditions of 800r/min, after constant temperature is stirred to react 3h, 0.5 times of graphene oxide quality of lithium aluminium hydride reduction is added, is in temperature
85 DEG C, under the conditions of revolving speed is 800r/min, after constant temperature is stirred to react 5h, filtering obtains filter cake, and gained filter cake is dried in vacuo,
Obtain amino graft modification graphene oxide；According to parts by weight, 5 parts of surfactants are successively taken, 8 parts of ammonium nitrate, 40 parts inorganic
Salt, 10 parts of crystallization hydrates, 3 parts of coupling agents, 10 parts of amino graft modification graphene oxides, first by surfactant, nitric acid
Ammonium, inorganic salts, crystallization hydrate, coupling agent and the mixing of amino graft modification graphene oxide are poured into batch mixer, and are added
The dehydrated alcohol of 2.0 times of inorganic salt quality is then 20 DEG C in temperature, and under the conditions of revolving speed is 600r/min, constant temperature is stirred
After 4h, discharging, vacuum freeze drying obtains mixture；Gained mixture and isocyanates are poured into batch mixer again, are in temperature
6 DEG C, under the conditions of revolving speed is 1200r/min, after low temperature is stirred 6h, discharging crushes grinding aid special to get ore.The table
Face activating agent is neopelex.The inorganic salts be aluminium chloride and sodium thiosulfate be in mass ratio 10:1 mixing and
At.The crystallization hydrate is that Disodium sulfate decahydrate, green vitriol and 12 hydrazine aluminum sulfate potassium are in mass ratio
10:1:1 is compounded.The coupling agent is silane coupling agent.The isocyanates is toluene di-isocyanate(TDI).
According to parts by weight, 5 parts of surfactants, 8 parts of ammonium nitrate, 40 parts of inorganic salts, 10 parts of crystallization hydrates are successively taken
Object, 3 parts of coupling agents, 10 parts of graphene oxides, first by surfactant, ammonium nitrate, inorganic salts, crystallization hydrate, coupling agent
It is poured into batch mixer with the mixing of amino graft modification graphene oxide, and the dehydrated alcohol of 2.0 times of inorganic salt quality is added, then
It is 20 DEG C in temperature, under the conditions of revolving speed is 600r/min, after constant temperature is stirred 4h, discharging, vacuum freeze drying must be mixed
Material；Gained mixture and isocyanates are poured into batch mixer again, in temperature be 6 DEG C, revolving speed be 1200r/min under the conditions of, it is low
After temperature is stirred 6h, discharging crushes grinding aid special to get ore.The surfactant is neopelex.
The inorganic salts are that aluminium chloride and sodium thiosulfate are that 10:1 is mixed in mass ratio.The crystallization hydrate is ten hydrations
Sodium sulphate, green vitriol and 12 hydrazine aluminum sulfate potassium are that 10:1:1 is compounded in mass ratio.The coupling agent is
Silane coupling agent.The isocyanates is toluene di-isocyanate(TDI).
According to parts by weight, 5 parts of surfactants, 8 parts of ammonium nitrate, 40 parts of inorganic salts, 10 parts of crystallization hydrates are successively taken
Object, 3 parts of coupling agents, first by surfactant, ammonium nitrate, inorganic salts, crystallization hydrate, coupling agent and amino graft modification oxygen
The mixing of graphite alkene is poured into batch mixer, and the dehydrated alcohol of 2.0 times of inorganic salt quality is added, and is then 20 DEG C in temperature, is turned
Under the conditions of speed is 600r/min, after constant temperature is stirred 4h, discharging, vacuum freeze drying obtains mixture；Again by gained mixture
Poured into batch mixer with isocyanates, in temperature be 6 DEG C, revolving speed be 1200r/min under the conditions of, after low temperature is stirred 6h, out
Material crushes grinding aid special to get ore.The surfactant is neopelex.The inorganic salts are aluminium chloride
It is mixed in mass ratio for 10:1 with sodium thiosulfate.The crystallization hydrate is Disodium sulfate decahydrate, seven hydrated sulfuric acids
Ferrous and 12 hydrazine aluminum sulfate potassium are that 10:1:1 is compounded in mass ratio.The coupling agent is silane coupling agent.It is described different
Cyanate is toluene di-isocyanate(TDI).
It is in mass ratio 1:10 by the dimethyl formamide solution of sodium azide that graphene oxide and mass fraction are 6%
Mixing is poured into reaction kettle, is 85 DEG C in temperature, revolving speed is after ultrasonic disperse 40min under the conditions of supersonic frequency is 70kHz
Under the conditions of 800r/min, after constant temperature is stirred to react 3h, 0.5 times of graphene oxide quality of lithium aluminium hydride reduction is added, is in temperature
85 DEG C, under the conditions of revolving speed is 800r/min, after constant temperature is stirred to react 5h, filtering obtains filter cake, and gained filter cake is dried in vacuo,
Obtain amino graft modification graphene oxide；According to parts by weight, 5 parts of surfactants, 40 parts of inorganic salts, 10 parts of crystallizations are successively taken
Hydrate, 3 parts of coupling agents, 10 parts of amino graft modification graphene oxides, first by surfactant, inorganic salts, crystallization aquation
It closes object, coupling agent and the mixing of amino graft modification graphene oxide to pour into batch mixer, and the nothing of 2.0 times of inorganic salt quality is added
Water-ethanol is then 20 DEG C in temperature, and under the conditions of revolving speed is 600r/min, after constant temperature is stirred 4h, discharging, vacuum refrigeration is done
It is dry, obtain mixture；Gained mixture and isocyanates are poured into batch mixer again, in temperature be 6 DEG C, revolving speed 1200r/min
Under the conditions of, after low temperature is stirred 6h, discharging crushes grinding aid special to get ore.The surfactant is dodecyl
Benzene sulfonic acid sodium salt.The inorganic salts are that aluminium chloride and sodium thiosulfate are that 10:1 is mixed in mass ratio.The crystallization hydrate
Object is that Disodium sulfate decahydrate, green vitriol and 12 hydrazine aluminum sulfate potassium are that 10:1:1 is compounded in mass ratio.Institute
Stating coupling agent is silane coupling agent.The isocyanates is toluene di-isocyanate(TDI).
It is in mass ratio 1:10 by the dimethyl formamide solution of sodium azide that graphene oxide and mass fraction are 6%
Mixing is poured into reaction kettle, is 85 DEG C in temperature, revolving speed is after ultrasonic disperse 40min under the conditions of supersonic frequency is 70kHz
Under the conditions of 800r/min, after constant temperature is stirred to react 3h, 0.5 times of graphene oxide quality of lithium aluminium hydride reduction is added, is in temperature
85 DEG C, under the conditions of revolving speed is 800r/min, after constant temperature is stirred to react 5h, filtering obtains filter cake, and gained filter cake is dried in vacuo,
Obtain amino graft modification graphene oxide；According to parts by weight, 5 parts of surfactants are successively taken, 8 parts of ammonium nitrate, 40 parts inorganic
Salt, 10 parts of crystallization hydrates, 3 parts of coupling agents, 10 parts of amino graft modification graphene oxides, first by surfactant, nitric acid
Ammonium, inorganic salts, crystallization hydrate, coupling agent and the mixing of amino graft modification graphene oxide are poured into batch mixer, and are added
The dehydrated alcohol of 2.0 times of inorganic salt quality is then 20 DEG C in temperature, and under the conditions of revolving speed is 600r/min, constant temperature is stirred
After 4h, discharging, vacuum freeze drying obtains mixture；Gained mixture is poured into batch mixer again, is 6 DEG C in temperature, revolving speed is
Under the conditions of 1200r/min, after low temperature is stirred 6h, discharging crushes grinding aid special to get ore.The surfactant is
Neopelex.The inorganic salts are that aluminium chloride and sodium thiosulfate are that 10:1 is mixed in mass ratio.The knot
Brilliant hydrate is that Disodium sulfate decahydrate, green vitriol and 12 hydrazine aluminum sulfate potassium are 10:1:1 compounding in mass ratio
It forms.The coupling agent is silane coupling agent.
It is in mass ratio 1:10 by the dimethyl formamide solution of sodium azide that graphene oxide and mass fraction are 6%
Mixing is poured into reaction kettle, is 85 DEG C in temperature, revolving speed is after ultrasonic disperse 40min under the conditions of supersonic frequency is 70kHz
Under the conditions of 800r/min, after constant temperature is stirred to react 3h, 0.5 times of graphene oxide quality of lithium aluminium hydride reduction is added, is in temperature
85 DEG C, under the conditions of revolving speed is 800r/min, after constant temperature is stirred to react 5h, filtering obtains filter cake, and gained filter cake is dried in vacuo,
Obtain amino graft modification graphene oxide；According to parts by weight, 5 parts of surfactants, 8 parts of ammonium nitrate, 10 parts of crystallizations are successively taken
Hydrate, 3 parts of coupling agents, 10 parts of amino graft modification graphene oxides, first by surfactant, ammonium nitrate, crystallization aquation
It closes object, coupling agent and the mixing of amino graft modification graphene oxide to pour into batch mixer, and dehydrated alcohol is added, then in temperature
It is 20 DEG C, under the conditions of revolving speed is 600r/min, after constant temperature is stirred 4h, discharging, vacuum freeze drying obtains mixture；Again will
Gained mixture and isocyanates pour into batch mixer, are 6 DEG C in temperature, under the conditions of revolving speed is 1200r/min, low temperature stirring is mixed
After closing 6h, discharging crushes grinding aid special to get ore.The surfactant is neopelex.The crystallization
Hydrate be Disodium sulfate decahydrate, green vitriol and 12 hydrazine aluminum sulfate potassium be in mass ratio 10:1:1 compounding and
At.The coupling agent is silane coupling agent.The isocyanates is toluene di-isocyanate(TDI).
It is in mass ratio 1:10 by the dimethyl formamide solution of sodium azide that graphene oxide and mass fraction are 6%
Mixing is poured into reaction kettle, is 85 DEG C in temperature, revolving speed is after ultrasonic disperse 40min under the conditions of supersonic frequency is 70kHz
Under the conditions of 800r/min, after constant temperature is stirred to react 3h, 0.5 times of graphene oxide quality of lithium aluminium hydride reduction is added, is in temperature
85 DEG C, under the conditions of revolving speed is 800r/min, after constant temperature is stirred to react 5h, filtering obtains filter cake, and gained filter cake is dried in vacuo,
Obtain amino graft modification graphene oxide；According to parts by weight, 5 parts of surfactants are successively taken, 8 parts of ammonium nitrate, 40 parts inorganic
Salt, 3 parts of coupling agents, 10 parts of amino graft modification graphene oxides, first by surfactant, ammonium nitrate, inorganic salts, coupling agent and
The mixing of amino graft modification graphene oxide is poured into batch mixer, and the dehydrated alcohol of 2.0 times of inorganic salt quality is added, then in
Temperature is 20 DEG C, and under the conditions of revolving speed is 600r/min, after constant temperature is stirred 4h, discharging, vacuum freeze drying obtains mixture；
Gained mixture and isocyanates are poured into batch mixer again, are 6 DEG C in temperature, under the conditions of revolving speed is 1200r/min, low temperature is stirred
After mixing mixing 6h, discharging crushes grinding aid special to get ore.The surfactant is neopelex.It is described
Inorganic salts are that aluminium chloride and sodium thiosulfate are that 10:1 is mixed in mass ratio.The coupling agent is silane coupling agent.It is described
Isocyanates is toluene di-isocyanate(TDI).
Comparative example: the ore of Jinhua material production Co., Ltd production crushes grinding aid special.
Example 1 to the resulting ore of example 7 is crushed into grinding aid special and comparative example product carries out performance detection, it is specific to examine
Survey method is as follows:
Test specimen is calculated according to 100% purity, is added in speed muller with different additional amount and quartz, talcum, zircon etc.
Natural mineral raw is ground together, the ratio of control material, ball, water when grinding are as follows: material: ball: water=1:2:1, is used after grinding 5min
200 mesh sieves, with a ten thousandth electronic balance weighing drying after tailing over, using tail over number as measurement grinding effect it is excellent
Bad index.The grinding efficiency increase rate of grinding aid is calculated using formula (1).
Formula (1): E=[(R0-R1) ÷ R0】×100%
E is grinding efficiency increase rate, % in formula.R0Not add screen over-size when grinding aid, %；R1Tailing over when for grinding aid is added
Amount, %.
Specific testing result is as shown in table 1:
1 ore of table crushes the specific testing result of grinding aid special
It is found that the ore of technical solution of the present invention preparation crushes grinding aid special there is excellent grinding to imitate by 1 testing result of table
The characteristics of rate, has broad prospects in the development of mineral processing technology industry.
Claims (7)
1. a kind of ore crushes grinding aid special, which is characterized in that the raw material including following parts by weight:
3~5 parts of surfactant
4~8 parts of ammonium nitrate
30~40 parts of inorganic salts
8~10 parts of hydrate of crystallization
2~3 parts of coupling agent
4~6 parts of isocyanates
8~10 parts of amino graft modification graphene oxide
The ore crushes the process for preparation of grinding aid special are as follows:
(1) each component is weighed by raw material composition；
(2) by surfactant, ammonium nitrate, inorganic salts, crystallization hydrate, coupling agent and amino graft modification graphene oxide
Mixing is poured into batch mixer, and the dehydrated alcohol of 1.0~2.0 times of inorganic salt quality is added, under the conditions of temperature is 10~20 DEG C,
After being stirred 2~4h, vacuum freeze drying obtains mixture；
(3) by mixture and isocyanates under the conditions of temperature is 4~6 DEG C, after being stirred, discharging crushes special to get ore
Use grinding aid.
2. a kind of ore according to claim 1 crushes grinding aid special, which is characterized in that the surfactant is ten
Any one in dialkyl benzene sulfonic acids sodium, cetyl trimethylammonium bromide or sodium lignin sulfonate.
3. a kind of ore according to claim 1 crushes grinding aid special, which is characterized in that the inorganic salts are aluminium chloride
It is in mass ratio that 3:1~10:1 is mixed with sodium thiosulfate.
4. a kind of ore according to claim 1 crushes grinding aid special, which is characterized in that the crystallization hydrate is
Disodium sulfate decahydrate, green vitriol and 12 hydrazine aluminum sulfate potassium are that 10:1:1 is compounded in mass ratio.
5. a kind of ore according to claim 1 crushes grinding aid special, which is characterized in that the coupling agent is that silane is even
Join any one in agent, aluminate coupling agent or titanate coupling agent.
6. a kind of ore according to claim 1 crushes grinding aid special, which is characterized in that the isocyanates is toluene
Any one in diisocyanate, methyl diphenylene diisocyanate or trimethylhexane diisocyanate.
7. a kind of ore according to claim 1 crushes grinding aid special, which is characterized in that the amino graft modification oxygen
The modifying process of graphite alkene are as follows: the dimethyl formamide solution by graphene oxide and sodium azide be in mass ratio 1:8~
After reaction is mixed in 1:10,0.4~0.5 times of graphene oxide quality of lithium aluminium hydride reduction is added, is continued after being stirred to react, mistake
Filter, washing and drying, obtain amino graft modification graphene oxide.
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| CN109859879A (en) * | 2019-03-06 | 2019-06-07 | 毛红玲 | A kind of high-performance conductive film and its processing method based on graphene |
| CN111250252A (en) * | 2019-12-30 | 2020-06-09 | 浙江瑞堂塑料科技股份有限公司 | Grinding aid for thermoplastic grinding process and grinding equipment |
| CN112592098A (en) * | 2020-12-24 | 2021-04-02 | 泰安市同达建材有限公司 | Concrete modifying flexibilizer and preparation method thereof |
| CN113636777A (en) * | 2020-04-27 | 2021-11-12 | 南京神仂建材科技有限公司 | Slag grinding aid and preparation method thereof |
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| CN111250252B (en) * | 2019-12-30 | 2021-07-09 | 浙江瑞堂塑料科技股份有限公司 | Grinding aid for thermoplastic grinding process and grinding equipment |
| CN113636777A (en) * | 2020-04-27 | 2021-11-12 | 南京神仂建材科技有限公司 | Slag grinding aid and preparation method thereof |
| CN112592098A (en) * | 2020-12-24 | 2021-04-02 | 泰安市同达建材有限公司 | Concrete modifying flexibilizer and preparation method thereof |
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