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Collecting agent for magnesium siliceous phosphorite mixed reverse flotation, preparation method and beneficiation method

A beneficiation method and reverse flotation technology, applied in flotation, solid separation and other directions, can solve the problems of inconvenient operation, high cost, difficulty in obtaining high-quality phosphate concentrate products, etc. The cost of reagents, the effect of simplifying the mixed reverse flotation process

Active Publication Date: 2020-08-04
四川省地质矿产勘查开发局成都综合岩矿测试中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the forward-reverse flotation and double-reverse flotation step-by-step enrichment processes for magnesia-silicate phosphate rock have disadvantages such as long process, many chemicals, high cost, and inconvenient operation.
In the existing double reverse flotation operation, it is difficult to carry out simultaneous flotation, only carbonate minerals and silicate minerals can be distributed, and the beneficiation effect of ultra-low-grade raw ore is poor, and it is difficult to obtain high-quality Phosphate Concentrate Products

Method used

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  • Collecting agent for magnesium siliceous phosphorite mixed reverse flotation, preparation method and beneficiation method
  • Collecting agent for magnesium siliceous phosphorite mixed reverse flotation, preparation method and beneficiation method
  • Collecting agent for magnesium siliceous phosphorite mixed reverse flotation, preparation method and beneficiation method

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Embodiment 1

[0035] A kind of beneficiation method of mixed reverse flotation of magnesia siliceous phosphate rock, using magnesia siliceous phosphate rock from a certain place in Sichuan as raw material, P in the raw ore 2 o 5 Content 19.56%, SiO 2 The content of MgO is 19.63%, and the content of MgO is 7.65%. The collector used in ore dressing is prepared by the following method:

[0036] (1) Take raw materials, oxidized paraffin wax soap 30g, kerosene 60g;

[0037] (2) Stir the above-mentioned kerosene that has been weighed under the action of ultrasonic waves and slowly add oxidized paraffin wax soap at the same time, stir and emulsify for 10 minutes to make it fully dissolved and emulsified;

[0038](3) Slowly add 15 g of etheramine after the operation in step (2), continue to stir continuously under the action of ultrasonic waves, and stir and emulsify for 15 minutes to fully dissolve and emulsify;

[0039] (4) Slowly add 2000g of water after step (3), continue to stir continuousl...

Embodiment 2

[0051] A kind of beneficiation method of mixed reverse flotation of magnesia siliceous phosphate rock, using magnesia siliceous phosphate rock from a certain place in Sichuan as raw material, wherein P 2 o 5 Content 15.64%, SiO 2 The content of MgO is 23.58%, and the MgO content is 9.37%. The gangue mineral collector used in ore dressing is prepared by the following method:

[0052] (1) Take raw materials, oxidized paraffin wax soap 25g, kerosene 50g;

[0053] (2) Stir the above-mentioned kerosene that has been weighed under the action of ultrasonic waves and slowly add oxidized paraffin wax soap at the same time, and stir and emulsify for 15 minutes to make it fully dissolved and emulsified;

[0054] (3) Slowly add 20 g of ether amine after the operation in step (2), continue to stir continuously under the action of ultrasonic waves, and stir and emulsify for 15 minutes to fully dissolve and emulsify;

[0055] (4) Slowly add 2000g of water after the operation in step (3), ...

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Abstract

The invention provides a collecting agent for magnesium siliceous phosphorite mixed reverse flotation, a preparation method and a beneficiation method. The beneficiation method comprises the followingsteps: (1) grinding the magnesium-silicon phosphate ore until the particle size of -0.074 mm accounts for 85%, and adding water to prepare ore pulp; (2) adding 15kg / t of sulfuric acid into the ore pulp, adding 300g / t of a special collecting agent, carrying out roughing operation, and scraping bubbles; wherein the special collecting agent is prepared from the following components in parts by weight: 10 to 20 parts of oxidized paraffin soap, 5 to 15 parts of ether amine and 20 to 30 parts of kerosene, (3) carrying out one-time mixed reverse flotation scavenging operation and two-time mixed reverse flotation concentration operation on a tank bottom product obtained by roughing to obtain a concentration tank bottom product, namely a phosphate concentrate product; and (4) performing mixed reverse flotation scavenging operation on a foam product obtained by roughing, and scraping foam to obtain a scavenged foam product, namely tailings. According to the method, the indexes of the obtained phosphate concentrate product are improved, the types and dosage of reagents are small, and the beneficiation cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a collecting agent for mixed reverse flotation of magnesia siliceous phosphate rock, a preparation method and a mineral processing method. Background technique [0002] Phosphate ore undergoes crushing-grinding-stirring-flotation processes to obtain qualified phosphorous concentrate products, which can be used to prepare phosphoric acid fertilizers and phosphorus compound raw materials. At present, the main method of beneficiation and enrichment of phosphate rock is flotation, which includes forward flotation and reverse flotation. During the flotation process, the process in which the target product phosphorus minerals are scraped out in the froth is called forward flotation, while the process in which gangue minerals are scraped out is called reverse flotation. The adjustment agent used in the positive flotation is sodium carbonate or sodium hydroxide to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D1/02B03D1/08B03D101/02B03D103/06
CPCB03D1/01B03D1/021B03D1/082B03D1/087B03D2201/02B03D2203/06
Inventor 余新文喻福涛杨晓军毛素荣李成何婷马继彪
Owner 四川省地质矿产勘查开发局成都综合岩矿测试中心
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