A kind of preparation method of liquid zinc purifying agent

A purifying agent, zinc liquid technology, applied in the improvement of process efficiency, instruments, optics, etc., can solve the problems of high energy consumption, high cost, and large amount of purifying agent

Active Publication Date: 2019-01-25
四川弘业环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of purifying agent is relatively large, and its amount is dozens or even hundreds of times of impurity metal elements in the solution, which has the disadvantages of large energy consumption and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Dissolve sodium dodecyl sulfonate in a solvent at a temperature of 30°C to obtain a sulfonate solution; add N,N-dimethylethanolamine and solvent to the resulting sulfonate solution, and after reacting for 1 hour, The resulting polymer is a new type of zinc liquid purifying agent. Wherein, the mass of the solvent for dissolving sodium dodecyl sulfonate is 70% of the total solvent added, the addition of sodium dodecyl sulfonate accounts for 40% of the total mass, and the addition of N,N-dimethylethanolamine accounts for the total 0.05% of quality.

[0036] The content of metal impurity ions in the new liquid purified by the purifier is below 0.5 mg / L, and the metal cobalt content can reach up to 10% after the cobalt residue is acid washed.

Embodiment 2

[0038] Dissolve sodium dodecyl sulfonate in a solvent at a temperature of 40°C to obtain a sulfonate solution; add N,N-dimethylethanolamine and solvent to the resulting sulfonate solution, and after reacting for 1 hour, The resulting polymer is a new type of zinc liquid purifying agent. Wherein, the mass of the solvent for dissolving sodium dodecyl sulfonate is 80% of the total solvent added, the addition of sodium dodecyl sulfonate accounts for 50% of the total mass, and the addition of N,N-dimethylethanolamine accounts for the total 0.1% of quality.

[0039] The content of cobalt and cadmium impurity ions in the new liquid purified by the purifier is below 0.5mg / L, and the metal cobalt content can reach up to 18% after the cobalt residue is acid washed.

Embodiment 3

[0041] Dissolve sodium dodecyl sulfonate in a solvent at a temperature of 50°C to obtain a sulfonate solution; add N,N-dimethylethanolamine and solvent to the resulting sulfonate solution, and wait for 1.5 hours to react , The resulting polymer is a new type of zinc liquid cleaning agent. Wherein, the mass of the solvent for dissolving sodium dodecyl sulfonate is 85% of the total solvent added, the addition of sodium dodecyl sulfonate accounts for 70% of the total mass, and the addition of N,N-dimethylethanolamine accounts for the total 0.1% of quality.

[0042] The content of metal impurity ions in the new liquid purified by the purifier is below 0.5mg / L, and the metal cobalt content can reach up to 15% after acid washing of the cobalt residue.

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Abstract

The invention discloses a preparation method of a zinc liquid cleaning agent. The preparation method comprises the following steps that (1) sulfonate is dissolved into a solvent to obtain a sulfonate solution; and (2) organic amine and a solvent are added into the sulfonate solution, and the cleaning agent obtained after reacting is carried out, wherein the sulfonate is selected from one or more of alkane sulfonate, sulfamate and arylsulphonate, the organic amine is selected from one or more of N,N-dimethylethanolamine, polyethyleneimine, 1,2-dimethylpropylamine, 1,5-dimethylhexylamine or N,N-diethyl ethylene diamine. The zinc liquid cleaning agent has the beneficial effects of being simple in preparing method, short in preparing time, low temperature needed by preparation, high in impurity removal capacity and the like.

Description

Technical field [0001] The invention relates to the technical field of mineral production and comprehensive utilization, in particular to a preparation method of a novel zinc liquid purifying agent. Background technique [0002] The process of hydrometallurgical zinc smelting can be divided into five stages: roasting, leaching, purification, electrowinning and casting. The zinc sulfate solution is obtained by dissolving and leaching zinc roasted ore with dilute sulfuric acid solvent. After purification, zinc is removed from the solution by electrowinning. Extracted from it. At present, hydro-zinc smelting has the advantages of large-scale production, low energy consumption, better labor conditions, and easy realization of mechanization and automation. It is dominant in the industry. 80%-85% of total zinc output comes from hydro-zinc smelting. [0003] But in the process of dissolving and leaching zinc roasted ore with dilute sulfuric acid solution, other impurities such as copper,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/16C25C1/16
CPCC22B3/1625C25C1/16Y02P10/20
Inventor 周珂罗大明徐俊忠
Owner 四川弘业环保科技有限公司
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