Desliming agent for slime-bearing sylvinite and processing method for slime-bearing sylvinite

A processing method and a technology for potassium rock salt, which are applied in the field of mud-containing potassium rock salt desliming agent and mud-containing potassium rock salt processing field, can solve the problems of unsatisfactory desliming effect, etc. The effect of reducing the processing cost

Active Publication Date: 2017-04-26
曲保伦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is: to overcome the technical problem of unsatisfactory desliming effect in the process of processing mud-containing potassium rock salt in the prior art, and to provide a mud-containing potassium rock salt desliming agent with good desliming effect

Method used

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  • Desliming agent for slime-bearing sylvinite and processing method for slime-bearing sylvinite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for processing clay-containing potassium halite, comprising the steps of:

[0024] (1) Grinding the crushed mud-containing potassium halite through a ball mill, mixing the ore particles and a solvent to form a slurry with a mass concentration of 65%, and the content of potassium salt ore with a particle size of ≤0.15mm after grinding accounts for 70%; The raw ore grade (calculated by KCl) of the mud-containing potassium halite is 19.1%, and the mud-containing rate of the raw ore is 10.9%;

[0025] (2) Send the material obtained in step (1) into the blending tank, add desliming agent carboxymethyl cellulose, collector octadecyl primary amine, and foaming agent No. 2 oil successively and stir to make it fully mixed Wherein the degree of etherification of carboxymethyl cellulose is 0.78, and the addition amount is 40g per ton of raw ore; when in use, carboxymethyl cellulose is formulated into an aqueous solution with a mass fraction of 2%;

[0026] (3) carry out ...

Embodiment 2

[0030] A method for processing clay-containing potassium halite, comprising the steps of:

[0031] (1) Grinding the crushed mud-containing potassium halite through a ball mill, mixing the ore particles and a solvent to form a slurry with a mass concentration of 70%, and the content of potassium salt ore with a particle size of ≤0.15mm after grinding accounts for 70%; The raw ore grade (calculated by KCl) of the mud-containing potassium halite is 19.1%, and the mud-containing rate of the raw ore is 10.9%;

[0032] (2) Send the material obtained in step (1) into the blending tank, add desliming agent carboxymethyl cellulose, collector octadecyl primary amine, and foaming agent No. 2 oil successively and stir to make it fully mixed Wherein the degree of etherification of carboxymethyl cellulose is 0.85, and the addition amount is 30g per ton of raw ore; when in use, carboxymethyl cellulose is prepared into an aqueous solution with a mass fraction of 3%;

[0033] (3) carry out fl...

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Abstract

The invention specifically relates to a desliming agent for slime-bearing sylvinite, belonging to the field of the chemical industry. The desliming agent for the slime-bearing sylvinite is carboxymethyl cellulose with an etherification degree of 0.75 to 0.9. The invention also discloses a processing method for the slime-bearing sylvinite. As the desliming agent is added in the process of processing of the slime-bearing sylvinite, slime in the slime-bearing sylvinite can be substantially removed. Compared with desliming methods/reagents in the prior art, the desliming agent provided by the invention is less in usage amount and is added once in the whole processing process; so treating process is substantially simplified, desliming efficiency is improved, and treating cost is reduced. Results of production and trial application show that the desliming agent and the processing method with high desliming rate are especially applicable to large Kunteyi salt flat potassium ore deposits in Lenghu Town, Qinghai Province, China.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a desliming agent for mud-containing potassium rock salt and a processing method for mud-containing potassium rock salt. Background technique [0002] China is a large agricultural country, and the land is seriously deficient in potassium, so there is a great demand for potassium fertilizer. At present, China's annual demand for potash fertilizer is about 10 million tons (equivalent to potassium chloride), and it is expected that the demand for potash fertilizer will reach 18.2 million tons by 2020. my country is a country with many salt lakes. There are salt lakes in most provinces and regions of the country, mainly in Qinghai, Tibet, Xinjiang and Inner Mongolia. There are more than 1,500 large and small salt lakes. Salt lakes are highly mineralized liquid, solid or solid-liquid coexistence mineral resources. With the development of my country's agriculture, the annual demand f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01D3/08C01D3/14
CPCC01D3/08C01D3/14C01P2006/80
Inventor 袁淼曲保伦曲昱臣
Owner 曲保伦
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