CN102965079B - Phosphate rock grinding aid and preparation method thereof - Google Patents
Phosphate rock grinding aid and preparation method thereof Download PDFInfo
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- CN102965079B CN102965079B CN201210505108.7A CN201210505108A CN102965079B CN 102965079 B CN102965079 B CN 102965079B CN 201210505108 A CN201210505108 A CN 201210505108A CN 102965079 B CN102965079 B CN 102965079B
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Abstract
The invention discloses a phosphate rock grinding aid and a preparation method thereof, which are mainly suitable for ore grinding production of flotation magnesium-removal phosphate rock. The phosphate rock grinding aid is prepared from the oleic acid, the lauryl amine and the triethanolamine at the weight ratio of (300-410):(150-190):(120-190). The phosphate rock grinding aid is good in dispersion effect, improves the grinding efficiency of phosphate rock, increases the ore grinding yield, reduces the energy consumption, increases the new surfaces of particles and reduces the dosage of the flotation magnesium-removal phosphate rock.
Description
Technical field
The present invention relates to a kind of grinding aid and preparation method thereof, relate in particular to a kind of phosphorus ore grinding aid and preparation method thereof.
Background technology
Low-grade phosphate ore carries out having reduced the consumption of sulfuric acid in production process of phosphoric acid after flotation, the phosphoric acid concentration of producing increases, be conducive to produce the fertilizer of high nutrient, and reaching monomer dissociation, phosphorus ore general requirement just can carry out flotation, the requirement of the mineral pair fineness that disseminated grain size is thin is higher, thereby phosphorus ore carries out must carrying out ore grinding before flotation, and the cost of broken ore grinding generally accounts for 10% of production cost, account for 50% of flotation cost, thereby how research improves comminution efficiency, increase output, reducing energy consumption is to economize on resources, the effective way reducing costs.
Affect the factor of mineral comminution operation main be two kinds.One is original ore property, the mechanics of machinery character of raw ore, hardness, toughness, lattice imperfection and the crackle etc. of ore.Another kind is comminution process conditions, as the kind of grinding machine, pulverizer and the selection of structure effect, the optimization of the processing parameters such as ore milling concentration, the selection of grinding mode and medium etc.The research of adding chemical agent grinding aid raising ore grinding and superfine pulverizing efficiency succeeds.
The mechanism of action that grinding aid acts on ore mainly contains following several theory: Lie Binjieer hypothesis thinks that the soil body is all made up of submicroscopic crack, in the time that solid has tensio-active agent around, promoting agent will be adsorbed on the surface of microfracture hole, reduce the surface free energy of object, thereby solid strength decreased, deformation increases.Westwood theory thinks that grinding aid causes the defect of Points And lines and the variation of surface electronic state, the specific phase mutual reactance between the dislocation that makes a difference and point defect to the absorption of solid surface.Ke Lipaer theory thinks that interpolation grinding aid causes the change of ore pulp viscosity in grinding machine, and grinding aid is mainly viscosity and the mobility of controlling ore pulp.
But grinding aid of the prior art is mainly for cement, the time in grinding production of the mineral such as iron ore, also seldom has the grinding aid of the time in grinding production that relates to phosphorus ore at present, for not having especially of the time in grinding production of flotation de-magging phosphorus ore.
Summary of the invention
For solving above technical problem, the object of the present invention is to provide a kind of comminution efficiency high, the phosphate rock floating that is conducive to back segment selects phosphorus ore grinding aid of magnesium and preparation method thereof.
The present invention seeks to realize like this:
A kind of phosphorus ore grinding aid, its key is by following parts by weight formulated:
Oleic acid 300-410
Amino dodecane 150-190
Trolamine 120-190.
Above-mentioned phosphorus ore grinding aid is formulated by optimizing below parts by weight:
Oleic acid 364
Amino dodecane 185
Trolamine 149.
The preparation method of phosphorus ore grinding aid adds respectively described oleic acid, amino dodecane and trolamine to stir, and is heated to 60-80 DEG C in reactor, and isothermal reaction makes for 30 minutes.
When use, grinding aid is added in the clear water that ore grinding uses, pressing 1-2.5Kg/t raw ore amount adds, can make the ore pulp after ore grinding, particle below 0.076mm increases 20-30%, effectively improve grinding machine processing power, there is very significant economical effectiveness, environmental protection and energy saving effect, and there is good market application foreground.
Beneficial effect: grinding aid of the present invention is liquid, and dispersion effect is good, and grinding aid has reduced granule strength and hardness in ore deposit by the effect on particle, has increased the formation of fresh surface.When this grinding aid ore grinding, in the surface adsorption of phosphorus ore, be conducive to the fracture of phosphorus ore crackle, stop the closure of newborn crackle.The use of grinding aid can improve the comminution efficiency of phosphorus ore, and this grinding aid is tensio-active agent, the flotation de-magging of back segment phosphorus ore is had to booster action, be conducive to the flotation of phosphorus ore, can improve phosphorus grade and the rate of recovery of concentrate after phosphate rock floating de-magging, reduce the interpolation of flotation reagent.
Embodiment
Embodiment 1:
Phosphorus ore grinding aid is that following compositions is formulated by weight:
Oleic acid: amino dodecane: trolamine=364: 185: 149.
Embodiment 2:
It is that following compositions is formulated by weight:
Oleic acid: amino dodecane: trolamine=300: 150: 130.
Embodiment 3:
The present invention is that following compositions is formulated by weight:
Oleic acid: amino dodecane: trolamine=410: 185: 190.
Phosphorus ore ore grinding and flotation experiment
Utilize the low-grade collophanite of grinding aid centering that embodiment 1-3 obtains to carry out ore grinding contrast experiment, result is as shown in table 1 below.Ore pulp after ore grinding is crossed to 0.9mm side's sieve, under the identical condition of other conditions, add grinding aid (consumption of grinding aid is 1.5kg/t raw ore), measure the grinding-aid effect of grinding aid, in the situation that other conditions are constant, grinding flotation, the relatively flotation effect of phosphorus concentrate.
The impact of table 1 grinding aid on phosphorus ore grinding fineness
| Numbering | Screen over-size | Specific surface area/m 2Kg -1 | Concentrate grade |
| Embodiment 1 | 2.8％ | 492 | 33.6 |
| Embodiment 2 | 3.2％ | 473 | 32.9 |
| Embodiment 3 | 4.3％ | 469 | 31.8 |
| Blank group | 10.5％ | 415 | 30.6 |
As shown in Table 1, when ore grinding, add grinding aid and can reduce screen over-size, significantly improve the grinding efficiency of phosphorus ore, thereby the grinding efficiency of grinding machine is improved, checking can be known by experiment simultaneously, after adding grinding aid ore grinding, concentrate grade improves, and phosphorous recovery also improves more than 5%, estimates flotation cost 10%.
Claims (2)
1. a preparation method for phosphorus ore grinding aid, is characterized in that: in reactor, add respectively oleic acid 300-410, amino dodecane 150-190 and trolamine 120-190 to stir according to parts by weight, and be heated to 60-80 DEG C, isothermal reaction makes for 30 minutes.
2. a kind of preparation method of phosphorus ore grinding aid according to claim 1, is characterized in that: in reactor, add respectively oleic acid 364, amino dodecane 185 and trolamine 149 to stir according to parts by weight, and be heated to 60-80 DEG C, isothermal reaction makes for 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210505108.7A CN102965079B (en) | 2012-12-01 | 2012-12-01 | Phosphate rock grinding aid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210505108.7A CN102965079B (en) | 2012-12-01 | 2012-12-01 | Phosphate rock grinding aid and preparation method thereof |
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| CN102965079A CN102965079A (en) | 2013-03-13 |
| CN102965079B true CN102965079B (en) | 2014-08-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103333664B (en) * | 2013-07-01 | 2014-11-12 | 湖北富邦科技股份有限公司 | High-efficiency environment-friendly grinding aid for wet grinding of phosphate ore |
| CN103772045B (en) * | 2014-01-24 | 2015-04-01 | 成都新柯力化工科技有限公司 | Water-soluble phosphatic fertilizer and preparation method thereof |
| CN104479629B (en) * | 2014-11-19 | 2016-06-22 | 沈阳建筑大学 | A kind of Coaseries kaolin powder grinding aid |
| CN105733505B (en) * | 2014-12-09 | 2018-02-13 | 河南绿金矿业科技有限公司 | It is a kind of to have gold mine ore grinding grinding aid for helping leaching to act on and preparation method thereof concurrently |
| CN105820798B (en) * | 2016-04-18 | 2018-08-28 | 湖北富邦科技股份有限公司 | A kind of phosphorus ore grinding aid and its preparation method and application |
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| US5131600A (en) * | 1989-02-13 | 1992-07-21 | The Dow Chemical Company | Alkanol amine grinding aids |
| CN1457937A (en) * | 2002-05-16 | 2003-11-26 | 尹小林 | Phosphorous slag activation modifier |
| CN101337788A (en) * | 2008-08-08 | 2009-01-07 | 山东山水水泥集团有限公司 | Modified triethanolamine, preparation method and application thereof |
| CN101575187A (en) * | 2009-06-16 | 2009-11-11 | 武汉科技大学 | Grinding aid used for refractory material and preparation method thereof |
| 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 |
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Patent Citations (5)
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| US5131600A (en) * | 1989-02-13 | 1992-07-21 | The Dow Chemical Company | Alkanol amine grinding aids |
| CN1457937A (en) * | 2002-05-16 | 2003-11-26 | 尹小林 | Phosphorous slag activation modifier |
| CN101337788A (en) * | 2008-08-08 | 2009-01-07 | 山东山水水泥集团有限公司 | Modified triethanolamine, preparation method and application thereof |
| CN101575187A (en) * | 2009-06-16 | 2009-11-11 | 武汉科技大学 | Grinding aid used for refractory material and preparation method thereof |
| 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 |
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| Characterization of various cement grinding aids and their impact on grindability and cement performance;M. Katsioti等;《Construction and Building Materials》;20081010;第23卷;1954-1959 * |
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Owner name: SINOFERT LIMITED Free format text: FORMER OWNER: CHONGQING PHOSPHATE COMPOUND FERTILIZER ENGINEERING TECHNOLOGY RESEARCH CENTER OF SINOFERT CO., LTD. Effective date: 20150217 |
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Effective date of registration: 20150217 Address after: 100031 Beijing city Xicheng District fuxingmennei Street 28, Chemsunny World Trade Center in the 10 blocks Patentee after: Sinofert Holding Limited Address before: 408000 Chongqing Road, Fuling District No. 2 Patentee before: Chongqing Phosphate & Compound Fertilizer Engineering Technology Research Center of Sinofert Holdings Limited |