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Method for separating and recovering cobalt and copper from P204 reverse extraction liquid in cobalt and copper mine wet method smelting process

A technology of hydrometallurgy and liquid separation, applied in the field of metallurgy, can solve the problems of low metal recovery rate, large amount of precipitated slag, large consumption of auxiliary materials, etc., reduce direct production costs, solve complex production processes, and improve production efficiency Effect

Pending Publication Date: 2019-03-19
江苏雄风科技有限公司
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  • Abstract
  • Description
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Problems solved by technology

This method is complex in process, consumes a lot of auxiliary materials, has a large amount of precipitated slag, and the metal recovery rate is not high

Method used

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  • Method for separating and recovering cobalt and copper from P204 reverse extraction liquid in cobalt and copper mine wet method smelting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take the P204 back-extracted solution, the components of which include: cobalt 15.76g / L, copper 3.78g / L, manganese 14.7g / L, zinc 0.26g / L, iron 0.021g / L, pH 1.0-1.5.

[0017] Mix the mass ratio of 10% Lix984N and 90% sulfonated kerosene, put the above mixed organic liquid into the extraction box, add P204 back-extracted liquid, carry out countercurrent extraction at room temperature, use 20% sodium hydroxide during the extraction process The pH value of the solution is controlled between 1.5-2.0, and the copper-extracting raffinate and the copper-extracting loaded organic are obtained by separation. After extraction, the copper content of the copper extraction raffinate was analyzed to be 0.11g / L.

[0018] Then add 3.5N sulfuric acid to the copper-extracting loading organic to carry out back-extraction to obtain a copper sulfate solution, and send the obtained copper sulfate solution to a copper salt evaporation system for evaporation to produce a copper salt product.

...

Embodiment 2

[0021] Take the P204 back-extracted liquid, its components include: cobalt 10.54g / L, copper 4.56g / L, manganese 25.49g / L, zinc 0.15g / L, iron 0.007g / L, pH 1.0-1.5.

[0022] The mass ratio is 12% Lix984N mixed with 88% sulfonated kerosene, the above mixed organic liquid is put into the extraction box, the P204 back-extracted liquid is added, and countercurrent extraction is carried out at room temperature, and 24% sodium hydroxide is used in the extraction process The pH value of the solution is controlled between 1.5-2.0, and the copper-extracting raffinate and the copper-extracting loaded organic are obtained by separation. After extraction, the copper content of the copper extraction raffinate was analyzed to be 0.055g / L.

[0023] Then add 4.0N sulfuric acid to the copper-extraction-loaded organic medium for back-extraction to obtain a copper sulfate solution, and send the obtained copper sulfate solution to a copper salt evaporation system for evaporation to produce a copper ...

Embodiment 3

[0026] Take the P204 back-extracted solution, in which its components include: cobalt 8.75g / L, copper 5.52g / L, manganese 20.40g / L, zinc 0.11g / L, iron 0.043g / L, pH 1.0-1.5.

[0027] Mix the mass ratio of 15% Lix984N and 85% sulfonated kerosene, put the above mixed organic liquid into the extraction box, add P204 back-extracted liquid, carry out countercurrent extraction at room temperature, use 15% ammonia water to control the pH during the extraction process The value is between 1.5-2.0, and the copper extraction raffinate and the copper extraction loaded organic are obtained by separation. After extraction, the copper content of the copper extraction raffinate was analyzed to be 0.092g / L.

[0028] Then add 4.2N sulfuric acid to the copper-extraction-loaded organic medium for back extraction to obtain a copper sulfate solution, and then send the obtained copper sulfate solution to a copper salt evaporation system for evaporation to produce a copper salt product.

[0029] Then...

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Abstract

The invention provides a method for separating and recovering cobalt and copper from P204 reverse extraction liquid in a cobalt and copper mine wet method smelting process. The method for separating and recovering the cobalt and the copper from the P204 reverse extraction liquid in the cobalt and copper mine wet method smelting process comprises the following steps that a copper extraction agent and sulfonated kerosene are added into the P204 reverse extraction liquid for extraction, a PH value is controlled between 1.5 and 2.0 in the process, and extracted copper residual liquid and extractedcopper organic load are obtained; sulfuric acid is added into the extracted copper organic load for reverse extraction to form a copper sulphate solution, and the copper sulphate solution is fed intoa copper salt vaporization system for vaporization to obtain a copper salt product; and the extracted copper residual liquid is heated to 30-60 DEG C, a precipitating agent is added for precipitation, a final PH value is controlled between 3.0 and 4.0, filter pressing and solid-liquid separation are carried out finally to obtain cobalt slag and precipitating cobalt liquid, the cobalt slag is fedto a copper and cobalt leaching system, and the cobalt and the copper are effectively separated. According to the method for separating and recovering the cobalt and the copper from the P204 reverse extraction liquid in the cobalt and copper mine wet method smelting process, the operation process is simple, the production cost is low, the production efficiency is high, and the metal recovery rateis effectively improved.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method for recovering cobalt-copper from liquid separation after P204 stripping in a cobalt-copper ore hydrometallurgy process. Background technique [0002] The method of recovering cobalt and copper from the P204 back-extraction liquid in the existing cobalt-copper ore hydrometallurgy process generally adopts the precipitation method, and directly uses a precipitant to precipitate metal cobalt and copper from the P204 back-extraction liquid into cobalt-copper slag, and the precipitated liquid Send to the manganese recovery system, and then add oxidant to the cobalt-copper slag to oxidize and dissolve, and then enter the cobalt-copper ore leaching system. This method has complex process, large consumption of auxiliary materials, large amount of precipitated slag, and low metal recovery rate. Contents of the invention [0003] In order to solve the above-mentioned defects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B3/30C22B15/00C22B23/00C01G3/10
CPCC01G3/10C22B7/006C22B15/0063C22B23/00C22B3/30Y02P10/20
Inventor 王松辉张晓权王琴吴建新
Owner 江苏雄风科技有限公司
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