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Flotation desliming process for solid sylvite mineral containing slime

A potash ore and solid technology, applied in flotation, solid separation and other directions, can solve the problems of less research on desliming of potash ore, high muddy mineral content, high quality and color requirements of potash fertilizer, etc., and achieve desliming effect. Remarkable, good product quality, low production cost effect

Inactive Publication Date: 2013-01-09
CHANGSHA DESIGN & RES INST OF CHEM IND MIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of potassium salt is generally obtained by spreading underground brine. Due to the large area of ​​the salt field, it can reach tens or even hundreds of square kilometers. The impact of ore slime on potash flotation products. Therefore, there are few studies on desliming of potash mines in various countries. At present, there are few literature records on desliming research in the field of potash salts.
However, salt fields with a small area and large sandstorms and underground solid potash mines all have the problem of excessive muddy mineral content, and the agricultural potash fertilizer market has high requirements for the quality and color of potash fertilizers, which requires special attention to potash mines. Desliming for technical research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Composition of a certain underground solid potassium rock salt into K + 14.49%, Mg 2+ 0.97%, Na + 24.51%, Cl - 53.48% of the raw ore, add its saturated mother liquor for coarse grinding, the grinding concentration is 50wt%, and the particle size of the potassium halite after grinding is -1mm, accounting for about 45.68%;

[0017] (2) The material that step (1) is obtained is sent into flotation machine, carries out the flotation separation of sylvite and argillaceous mineral, and flotation medium is this sylvite K + , Mg 2+ , Cl - The co-saturated mother liquor, the flotation process is one roughing, the flotation time is 5 minutes, the flotation agent is sodium laurate fatty acid (sodium dodecanoate), the dosage is 200g / t, and the dosing method is normal temperature administration;

[0018] (3) Potash halite pulp after the desliming that step (2) obtains, by adding cationic collector tetradecyl primary amine and decyl ether amine flotation KCl, then the ro...

Embodiment 2

[0022] (1) Composition of a certain underground solid potassium rock salt into K + 14.49%, Mg 2+ 0.97%, Na + 24.51%, Cl - 53.48% of the raw ore, add its saturated mother liquor for coarse grinding, the grinding concentration is 45wt%, and the particle size composition of potassium halite after grinding is -1mm, accounting for about 52.31%.

[0023] (2) The material that step (1) is obtained is sent into flotation machine, carries out the flotation separation of sylvite and argillaceous mineral, and flotation medium is this sylvite K + , Mg 2+ , Cl - The total saturated mother liquor, the flotation process is a roughing, the flotation time is 5 minutes, the flotation agent sodium dodecyl xamic acid, the dosage is 120g / t, and the dosing method is normal temperature administration.

[0024] (3) With the deslimed potassium halite pulp obtained in step (2), flotation KCl by adding cationic collectors cetyl primary amine and dodecyl ether amine, and then screen the roughing...

Embodiment 3

[0028] (1) The weight composition of a certain underground solid potassium rock salt is K + 15.36%, Mg 2+ 0.82%, Na + 25.58%, Cl - 55.75% of the raw ore, add its saturated mother liquor for coarse grinding, the grinding concentration is 55wt%, and the particle size composition of potassium halite after grinding is -1mm, accounting for about 41.97%.

[0029] (2) The material that step (1) is obtained is sent into flotation machine, carries out the flotation separation of sylvite and argillaceous mineral, and flotation medium is this sylvite K + , Mg 2+ , Cl - The total saturated mother liquor, the flotation process is a roughing, the flotation time is 5 minutes, the flotation agent is sodium myristate soap (sodium myristate) treated with sulfuric acid, the dosage is 120g / t, and the dosage is 120g / t. The way is to administer at room temperature.

[0030] (3) Potash halite pulp after desliming that step (2) obtains, by adding cationic collector octadecyl primary amine a...

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Abstract

The invention relates to a flotation desliming process for solid sylvite mineral containing slime, which comprises the following steps of: (1) roughly grinding the solid sylvite mineral; (2) feeding the material obtained in the step (1) into a flotation machine to perform flotation separation of sylvite mineral and mineral containing slime, and taking a fatty acid or hydroxamic acid anionic collector as a flotation agent; (3) adding an amine cationic collector such as fatty amine, ether amine and the like into deslimed sylvite mineral obtained in the step (2) in a flotation tank to float KCl,screening floated concentrate, filtering and drying the oversize product to obtain qualified large-particle KCl product, and obtaining the undersize product as fine-particle KCl roughly sorted concentrate; and (4) finely sorting the fine-particle KCl roughly sorted concentrate to obtain the fine-particle KCl product. The obtained KCl potassium fertilizer product is white and transparent and has high purity, the grade of KCl can reach 98%, and the standards of type I special industrial KCl in national standard GB6549-1996 can be reached.

Description

technical field [0001] The invention relates to a technology for improving the whiteness and quality of potash fertilizer products by flotation and desliming from mud-containing solid potash ore. Background technique [0002] So far, in the field of mineral processing, there are usually methods such as mechanical desliming, dispersant desliming, flocculant desliming and other methods for desliming pulp. Mechanical desliming includes cyclone desliming, desliming bucket desliming, jigging desliming, chute desliming, magnetic separation desliming, etc. This type of desliming method is used in non-ferrous metal ore, iron ore and phosphate ore dressing plants It is widely used. For example, Heishan Titanium Separation Plant in Chengde, Hebei, concentrates the ilmenite tailings efficiently and then deslimes them with a cyclone. A collophosite in Yichang, Hubei uses a desliming bucket before flotation. , a phosphate mine in Guizhou adopts the method of jigging and scrubbing for de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/004B03D1/14
Inventor 甘顺鹏季荣孙成高汤建良刘小力郑贤福
Owner CHANGSHA DESIGN & RES INST OF CHEM IND MIN