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Method of fully separating copper, manganese, zinc, cobalt and calcium chloride solution

A chloride and solution technology, applied in the field of valuable metal recovery, can solve the problems of large acid and alkali consumption, uneconomical, high cost, and achieve the effects of low-cost and high-efficiency recovery, maximization of resource value, and convenient operation.

Inactive Publication Date: 2013-01-23
GANSU NORMAL UNIV FOR NATTIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current main process route: (a) N235 extraction method is highly volatile, the phase separation speed is slow, the process flow is long, the cost is high, and it is not economical; (b) sodium carbonate precipitation-sulfuric acid dissolution-copper extraction-removal The miscellaneous process is relatively simple, but it needs to consume a lot of acid and alkali, and the solubility of sulfate is small and easy to crystallize, which often blocks pipelines and equipment
In the existing method, not only the technological process is complicated, the operation is cumbersome, but also the environmental pollution is serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for fully separating copper, manganese, zinc, cobalt, and calcium chloride solution, using P204 impurity removal solution produced in the cobalt production process as raw material 1, the solution contains 128 g / L manganese, 36 g / L copper, Cobalt 2 g / L, calcium 10 g / L, zinc 8 g / L, take 1 L of raw material solution to remove calcium, enrich copper, zinc and cobalt, extract manganese, extract copper, extract cobalt, specific reaction route and operation steps as follows:

[0033] Step 1. Calcium removal:

[0034] Add 53.3 g of sodium sulfate to the copper, manganese, zinc, cobalt, and calcium chloride solution to obtain calcium sulfate precipitation, separate the precipitation, and obtain solution I;

[0035] Step 2, enriching copper, zinc and cobalt and extracting manganese:

[0036] a. Add 59.6 g of sodium carbonate to solution I, and the copper ions in the solution are precipitated with basic copper carbonate to form solution II;

[0037] b. Add sodium aceta...

Embodiment 2

[0044] A method for fully separating copper, manganese, zinc, cobalt, and calcium chloride solution, using P204 impurity removal solution produced in the cobalt production process as raw material 2, the solution contains 173 g / L of manganese, 47 g / L of copper, Cobalt 5 g / L, calcium 17 g / L, zinc 12 g / L, take 1 L of raw material solution to remove calcium, enrich copper, zinc and cobalt, extract manganese, extract copper, and extract cobalt in sequence. The specific reaction route and operation steps are as follows :

[0045] Step 1. Calcium removal:

[0046] Add 84.2 g of ammonium sulfate to the copper, manganese, zinc, cobalt, and calcium chloride solution to obtain calcium sulfate precipitate, separate the precipitate, and obtain solution I;

[0047] Step 2, enriching copper, zinc and cobalt and extracting manganese:

[0048] a. Add 77.8 g of sodium carbonate to solution I, and the copper ions in the solution are precipitated with basic copper carbonate to form solution II;...

Embodiment 3

[0056] A method for fully separating copper, manganese, zinc, cobalt, and calcium chloride solution, using P204 impurity removal solution produced in the cobalt production process as raw material 3, the solution contains up to 132 g / L manganese, 25 g / L copper, Cobalt 3.7 g / L, calcium 10 g / L, zinc 7.5 g / L, take 1 L of raw material solution to remove calcium, enrich copper, zinc and cobalt, extract manganese, extract copper, extract cobalt, specific reaction route and operation steps as follows:

[0057] Step 1. Calcium removal:

[0058] Add 65.3 g of potassium sulfate to the copper, manganese, zinc, cobalt, and calcium chloride solution to obtain calcium sulfate precipitation, separate the precipitate, and obtain solution I;

[0059] Step 2, enriching copper, zinc and cobalt and extracting manganese:

[0060] a. Add 53.9 g of potassium carbonate to solution I, and the copper ions in the solution are precipitated with basic copper carbonate to form solution II;

[0061] b. Ad...

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PUM

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Abstract

The invention discloses a method of fully separating copper, manganese, zinc, cobalt and calcium chloride solution. The method comprises the following steps: by taking P2O4 impurity removal liquid produced in a cobalt production process as a raw material, removing calcium, enriching copper, zinc and cobalt, extracting manganese, extracting copper and extracting cobalt in sequence. According to the invention, through fully separating copper, manganese, zinc, cobalt and calcium chloride solution, valuable metals are recycled at low cost and high efficiency, the resource value is maximized, and the method has the advantages of simple process, convenience for operation, greenness and environmental friendliness.

Description

technical field [0001] The invention relates to a method for recovering valuable metals, belonging to the field of hydrometallurgy. Background technique [0002] At present, in addition to cobalt, the P204 impurity removal liquid produced in the cobalt production process is also rich in a large amount of valuable metal elements such as copper, manganese, zinc, calcium, etc. These elements are mixed in the solution in the form of chlorides . In order to make full use of the valuable metals in the mixed solution and realize the purpose of maximizing the value of resources, it is necessary to study the full separation process of copper, manganese, zinc, cobalt, calcium and other valuable metal chloride solutions. The current main process route: (a) N235 extraction method has high volatility, slow phase separation speed, long process flow, high cost, and economically uneconomical; (b) sodium carbonate precipitation-sulfuric acid dissolution-copper extraction-removal The miscel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/44C22B15/00C22B19/30C22B23/00C22B47/00C22B26/20
CPCY02P10/20
Inventor 杨敬军常毓巍杨瑛
Owner GANSU NORMAL UNIV FOR NATTIES
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