CN103333664B - High-efficiency environment-friendly grinding aid for wet grinding of phosphate ore - Google Patents
High-efficiency environment-friendly grinding aid for wet grinding of phosphate ore Download PDFInfo
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Abstract
The invention relates to a high-efficiency environment-friendly grinding aid for wet grinding of phosphate ore. The high-efficiency environment-friendly grinding aid is characterized by comprising the following components by weight percentage: 40-50% of auxiliaries, 10-20% of anionic dispersant, 5-20% of chelating agent and 10-30% of water; the sum of the percentages of all the components is 100%; and all the components are evenly mixed together to obtain the high-efficiency environment-friendly grinding aid for wet grinding of phosphate ore. The high-efficiency environment-friendly grinding aid for wet grinding of phosphate ore provided by the invention is a liquid at the normal temperature, and good in liquidity and low in dosage; generally, only 0.5-1 kg of high-efficiency environment-friendly grinding aid is needed for per ton of phosphate ore; the grinding aid is directly added to the front section of a ball mill through simple operation; and then the ore grinding efficiency can be improved and the ore grinding cost can be reduced.
Description
Technical field
The present invention relates to a kind of high-efficiency environment friendly grinding aid for Rock Phosphate (72Min BPL) wet-milling.
Background technology
Ore reduction, griding technology are a highly energy-consuming, the expensive course of processing.It is reported, for the energy consumption of (world's every profession and trade) of grinding operation, account for 5% left and right of world's total energy consumption, and account for 60% of this total energy consumption for the fragmentation of ore processing process and the energy consumption of grinding operation.
China's phosphate rock resource is abundant, occupies the second in the world, and verifying the Rock Phosphate (72Min BPL) with economic worth approximately has 40.5 hundred million tons.At present 77% of China's phosphorus ore ultimate production for processing phosphate fertilizer, and 16% for the production of yellow phosphorus, and all the other 7% are used for producing feed-grade calcium phosphate salt.
No matter be, produce phosphate fertilizer or produce feed-grade calcium phosphate salt, all need to carry out Grinding procedure, phosphorus ore ore grinding adopts wet-milling mostly, and in order to guarantee mobility and the easy transporting of ore pulp, generally ore grinding mass concentration is approximately 30-40%, when Rock Phosphate (72Min BPL) weathering serious, or in impure silt content situation how, the more difficult mill of Rock Phosphate (72Min BPL) siliceous, magnesium is many, ore milling concentration will be lower, this just means that grinding efficiency is lower, and ore grinding cost raises.
Therefore for the grinding aid product of Rock Phosphate (72Min BPL), can effectively promote the economic benefit of phosphorus industry.
Summary of the invention
The object of the present invention is to provide a kind of high-efficiency environment friendly grinding aid for Rock Phosphate (72Min BPL) wet-milling, high-efficiency environment friendly grinding aid normal temperature for Rock Phosphate (72Min BPL) wet-milling of the present invention is that liquid state, good fluidity, consumption are little, generally, only need 0.5-1 kg/tonne of phosphorus ore of high-efficiency environment friendly grinding aid, directly add ball mill leading portion to, simple to operate, can improve grinding efficiency, reduce ore grinding cost.
Technical scheme of the present invention is:
For a high-efficiency environment friendly grinding aid for Rock Phosphate (72Min BPL) wet-milling, each component by mass percentage, is characterized in that: auxiliary agent 40-50%, and anionic dispersing agents 10-20%, sequestrant 5-20%, water 10-30%, each component sum is 100%; Each component is mixed and must be for the high-efficiency environment friendly grinding aid of Rock Phosphate (72Min BPL) wet-milling.
Described auxiliary agent is caramel colorant.Described caramel colorant is namely acidproof caramel colorant of the caramel colorant produced of ammonium sulfite.
Described anionic dispersing agents is polyacrylate.Described polyacrylate is the sylvite of vinylformic acid and ethyl acrylate copolymer or the sodium salt of vinylformic acid and ethyl acrylate copolymer or the mixture that the two is mixed by any ratio, wherein the mol ratio of vinylformic acid and ethyl propenoate copolymerization is 2:1, and the molecular weight control of gained multipolymer is 5000-15000.
Described sequestrant is fulvic acid, fulvic acid good water solubility, and there is certain acid resistance, for phosphorus ore grinding environment better adaptability.
The action principle of wherein said auxiliary agent, the absorption by it on mineral grain surface, to reduce the surface energy of mineral, thereby reduces the needed power of fracture, is conducive to improve grinding rate.
The action principle of described anionic dispersing agents, utilize its comb property structure, in the absorption of mineral surface, the electronic double layer repulsion energy of particle interphase interaction, steric exclusion can be increased, Van der Waals attracts to increase, total potential energy becomes large, repulsive force strengthens, particle is asked apart from change large, thereby the suspensoid in ore pulp is disperseed, and avoids the generation of cohesion and slime coating phenomenon, when increasing steric exclusion energy, also can reduce intergranular frictional force, promote the dispersion between particle, so just can improve ore milling concentration, increase ball milling and enter ore deposit amount, improve grinding efficiency.
Described sequestrant action principle, its can with ore in calcium, the metal ion-chelants such as magnesium are in inside configuration, weaken the argillization impact of calcium magnesium metal ion on ore pulp.
High-efficiency environment friendly grinding aid normal temperature for Rock Phosphate (72Min BPL) wet-milling of the present invention is that liquid state, good fluidity, consumption are little, generally, only needs 0.5-1 kg/tonne of phosphorus ore of high-efficiency environment friendly grinding aid, directly add ball mill leading portion to, simple to operate, can improve grinding efficiency, reduce ore grinding cost, be embodied in: 1, improve slurry fineness, increasing under the prerequisite of raw ore mine-supplying quantity, can guarantee original grinding fineness, or further improve slurry fineness, improve grinding efficiency, increase ore grinding production capacity.2, guarantee that ore pulp has good mobility and easy transporting, is beneficial to the operation of follow-up workshop section.3, gained ore pulp moisture reduces, the energy consumption of saving follow-up workshop section slurry concentrating.4, reduce ball milling workshop section energy consumption, the raising of ore grinding production capacity within the unit time, means the Energy Intensity Reduction when ore grinding of raw ore per ton; The raising of grinding fineness, also can shorten the ore grinding time to a certain extent.Reduce pulp conveying workshop section energy consumption, fluidity of slurry is good, easily carries, and the energy consumption of transferpump also can correspondingly reduce.5, reduce the processing costs that unit ore ore grinding water consumption and ore grinding produce waste water.
Embodiment
Below in conjunction with embodiment, the invention will be further described.The embodiment of the present invention, each component is calculated by mass percentage: the caramel colorant that each embodiment uses is namely acidproof caramel colorant of the caramel colorant produced of ammonium sulfite.
Embodiment 1:
Caramel colorant 40%, the sylvite 20% of vinylformic acid and ethyl acrylate copolymer, fulvic acid 10%, water 30%, wherein the mol ratio of vinylformic acid and ethyl propenoate copolymerization is 2:1, and molecular weight of copolymer is 5000, each component is mixed and must be for the high-efficiency environment friendly grinding aid of Rock Phosphate (72Min BPL) wet-milling.
Use above-mentioned high-efficiency environment friendly grinding aid effect comparison
Embodiment 2:
Caramel colorant 40%, the sodium salt 20% of vinylformic acid and ethyl acrylate copolymer, fulvic acid 20%, water 20%, wherein the mol ratio of vinylformic acid and ethyl propenoate copolymerization is 2:1, and molecular weight of copolymer is 10000, each component is mixed and must be for the high-efficiency environment friendly grinding aid of Rock Phosphate (72Min BPL) wet-milling.
Use above-mentioned high-efficiency environment friendly grinding aid effect comparison:
Embodiment 3:
Caramel colorant 50%, the sodium salt 10% of vinylformic acid and ethyl acrylate copolymer, the sylvite 10% of vinylformic acid and ethyl acrylate copolymer, fulvic acid 10%, water 20%, wherein the mol ratio of vinylformic acid and ethyl propenoate copolymerization is 2:1, and molecular weight of copolymer is 15000, each component is mixed and must be for the high-efficiency environment friendly grinding aid of Rock Phosphate (72Min BPL) wet-milling.
Use above-mentioned high-efficiency environment friendly grinding aid effect comparison:
Embodiment 4:
Caramel colorant 50%, the sodium salt 10% of vinylformic acid and ethyl acrylate copolymer, the sylvite 5% of vinylformic acid and ethyl acrylate copolymer, fulvic acid 15%, water 20%, wherein the mol ratio of vinylformic acid and ethyl propenoate copolymerization is 2:1, and molecular weight of copolymer is 12000, each component is mixed and must be for the high-efficiency environment friendly grinding aid of Rock Phosphate (72Min BPL) wet-milling.
Use above-mentioned high-efficiency environment friendly grinding aid effect comparison:
Embodiment 5:
Caramel colorant 50%, the sodium salt 20% of vinylformic acid and ethyl acrylate copolymer, fulvic acid 20%, water 10%, wherein the mol ratio of vinylformic acid and ethyl propenoate copolymerization is 2:1, and molecular weight of copolymer is 8000, each component is mixed and must be for the high-efficiency environment friendly grinding aid of Rock Phosphate (72Min BPL) wet-milling.
Use above-mentioned high-efficiency environment friendly grinding aid effect comparison:
Claims (3)
1. for a high-efficiency environment friendly grinding aid for Rock Phosphate (72Min BPL) wet-milling, each component by mass percentage, is characterized in that: auxiliary agent 40-50%, and anionic dispersing agents 10-20%, sequestrant 5-20%, water 10-30%, each component sum is 100%; Each component is mixed and must be for the high-efficiency environment friendly grinding aid of Rock Phosphate (72Min BPL) wet-milling; Described auxiliary agent is caramel colorant; Described anionic dispersing agents is polyacrylate; Described sequestrant is fulvic acid.
2. the high-efficiency environment friendly grinding aid for Rock Phosphate (72Min BPL) wet-milling as claimed in claim 1, is characterized in that: described caramel colorant is namely acidproof caramel colorant of the caramel colorant produced of ammonium sulfite.
3. the high-efficiency environment friendly grinding aid for Rock Phosphate (72Min BPL) wet-milling as claimed in claim 1, it is characterized in that: described polyacrylate is the sylvite of vinylformic acid and ethyl acrylate copolymer or the sodium salt of vinylformic acid and ethyl acrylate copolymer or the mixture that the two is mixed by any ratio, wherein the mol ratio of vinylformic acid and ethyl propenoate copolymerization is 2:1, and the molecular weight control of gained multipolymer is 5000-15000.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106045627A (en) * | 2016-06-08 | 2016-10-26 | 纪新强 | Method for producing spray composite fertilizer from middle-and-low-grade phosphate ore |
| CN106045705A (en) * | 2016-06-08 | 2016-10-26 | 纪新强 | Method for producing spray organic and inorganic composite fertilizer from middle-and-low-grade phosphate ore |
| CN106867452A (en) * | 2017-04-18 | 2017-06-20 | 山西中聚晶科半导体有限公司 | A kind of sapphire lapping liquid and preparation method thereof |
| FR3073219B1 (en) * | 2017-11-09 | 2021-11-12 | Coatex Sas | PREPARATION OF AQUEOUS SUSPENSION OF PHOSPHATE MATERIAL |
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| JPS5792588A (en) * | 1980-12-02 | 1982-06-09 | Nippon Chemical Ind | Manufacture of fused phosphate |
| JPH0813167A (en) * | 1994-06-29 | 1996-01-16 | Yushiro Chem Ind Co Ltd | Water soluble coolant |
| CN102643629A (en) * | 2012-04-06 | 2012-08-22 | 湖北富邦科技股份有限公司 | Grinding aid for phosphate rock |
| CN102660225B (en) * | 2012-05-02 | 2013-11-06 | 焦作市博洋科技有限公司 | Titanic iron ore grinding aid and preparation method |
| CN102965079B (en) * | 2012-12-01 | 2014-08-20 | 中化化肥有限公司重庆磷复肥工程技术研究中心 | Phosphate rock grinding aid and preparation method thereof |
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