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Solution purifying system and method

A solution and pipeline technology, applied in the chemical industry, can solve the problems of slow diffusion of ions around the particles, limited stirring strength of the stirring tank, and low utilization rate of zinc powder, so as to reduce the thickness of the diffusion layer on the surface of solid zinc powder and improve the replacement efficiency , to ensure the effect of continuity

Inactive Publication Date: 2016-08-03
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the solution and the solid zinc powder particles can fully contact in this way, the agitation intensity of the stirring tank is limited, resulting in relatively slow diffusion of ions around the particles, long reaction time, slow reaction speed, and low utilization rate of zinc powder.

Method used

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  • Solution purifying system and method

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Embodiment 1

[0058] will be 1m 3 The cobalt-containing solution is supplied to the pipeline reactor sequentially through the first delivery pipeline, the feed pump and the second delivery pipeline, and simultaneously the zinc powder is supplied to the first delivery pipeline, the second delivery pipeline and the pipeline reactor through the zinc powder supply device, Make the zinc powder and the cobalt ion in the cobalt-containing solution undergo a reduction reaction in the pipeline reactor, the reaction temperature is 80-90°C, the reaction time is 5min, the dosage coefficient of the zinc powder is 1.2, and the slurry obtained from the reaction is subjected to pressure filtration. The cobalt content in the liquid obtained after cobalt removal is lower than 0.2mg / L.

Embodiment 2

[0060] will be 1m 3 The copper-containing solution is sequentially supplied to the pipeline reactor through the first delivery pipeline, the feed pump and the second delivery pipeline, and simultaneously the zinc powder is supplied to the first delivery pipeline, the second delivery pipeline and the pipeline reactor through the zinc powder supply device, Make the zinc powder and the copper ion in the copper-containing solution undergo a reduction reaction in the pipeline reactor, the reaction temperature is 50-60°C, the reaction time is 5min, the dosage coefficient of the zinc powder is 1.05, and the slurry obtained from the reaction is subjected to pressure filtration. The copper content in the obtained solution after copper removal is lower than 0.2mg / L.

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Abstract

The invention discloses a solution purifying system and method. The solution purifying system comprises a solution storage device, a first conveying pipeline, a feed pump, a second conveying pipeline, a pipeline reactor and a zinc powder supply device, wherein the first conveying pipeline is connected to the solution storage device; the feed pump is connected to the first conveying pipeline; the second conveying pipeline is connected to the feed pump; the pipeline reactor is connected to the second conveying pipeline; and the zinc powder supply device is connected to at least one of the first conveying pipeline, the second conveying pipeline and the pipeline reactor. The solution purifying system has the beneficial effects that technological parameters in a replacement working procedure can be optimized to a great extent; the continuity of original operation is ensured; and the power consumption and equipment investment which are caused by additional stirring are omitted.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular, the invention relates to a system and method for purifying a solution. Background technique [0002] In the traditional hydrometallurgy process, zinc powder is used for displacement reaction to remove impurities from the solution. In the design, a stirring tank is generally used as the reaction vessel and the reaction is promoted by strong stirring. Although the solution and the solid zinc powder particles can fully contact in this way, the agitation intensity of the stirring tank is limited, resulting in relatively slow ion diffusion around the particles, long reaction time, slow reaction speed, and low utilization rate of zinc powder. [0003] Therefore, the existing process for purifying the solution needs to be further improved. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the related art at least to a cert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/02C22B3/46
CPCC22B3/02C22B3/46Y02P10/20
Inventor 陆业大韦林奎王鸿振杨德志李涛舒毓璋申美玲陈兴
Owner CHINA ENFI ENGINEERING CORPORATION