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Method for separating copper and manganese from copper-manganese solution with high degree of acidity

A copper-manganese and acidity technology, applied in rotary drum furnaces, crucible furnaces, furnaces, etc., can solve problems such as difficulty in separating copper and manganese, and achieve the effects of low content of valuable metals, simple operation process, and easy availability of raw materials at low prices.

Inactive Publication Date: 2009-08-19
南通新玮镍钴科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the copper content in this solution is relatively high, the above method will cause great difficulties to the subsequent separation of copper and manganese, so a new technical solution is needed to solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A method for separating copper and manganese from a high-acidity copper-manganese mixed solution of the present invention comprises adding reducing agent iron powder with a mass ratio of 1:1 to the copper content in the solution to the copper-manganese mixed solution under stirring, and reacting for 0.5 hours, Filter and wash the copper-manganese mixed solution, the filter residue is active copper powder, and the filtrate is a manganese-containing solution; add a precipitant sodium carbonate to the manganese-containing filtrate under stirring, adjust the pH of the solution to >8.0, and filter to obtain manganese salt and Iron hydroxide precipitates.

Embodiment 2

[0014] A method for separating copper and manganese from a high-acidity copper-manganese mixed solution of the present invention comprises adding reducing agent iron powder with a mass ratio of 1:1 to the copper content in the solution to the copper-manganese mixed solution under stirring, and reacting for 0.8 hours, Filter and wash the copper-manganese mixed solution, the filter residue is active copper powder, and the filtrate is a manganese-containing solution; add precipitant potassium bicarbonate to the manganese-containing filtrate under stirring, adjust the pH of the solution to >8.0, and filter to obtain manganese salt and ferric hydroxide precipitate.

Embodiment 3

[0016] A method for separating copper and manganese from a high-acidity copper-manganese mixed solution of the present invention comprises adding reducing agent iron powder with a mass ratio of 1:1 to the copper content in the solution to the copper-manganese mixed solution under stirring, and reacting for 1 hour, Filter and wash the copper-manganese mixed solution, the filter residue is active copper powder, and the filtrate is a manganese-containing solution; add precipitant ammonium bicarbonate to the manganese-containing filtrate under stirring, adjust the pH of the solution to >8.0, and filter to obtain manganese salt and ferric hydroxide precipitate.

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Abstract

The invention relates to a method for separating copper (Cu) and manganese (Mn) in high-acidity Cu-Mn mixed solution, and is characterized in that the method comprises the following steps: adding a reducing agent, that is, iron powder with the mass ratio between the copper in the solution and the iron powder being 1:1, to the Cu-Mn mixed solution while stirring the solution; reacting for 0.5 to 1 hour; filtering and rinsing the Cu-Mn mixed solution with the filter residue of active copper powder and the filter liquor of Mn-containing solution; adding a precipitating agent, that is, carbonate, to the Mn-containing solution for adjusting the pH value of the solution until the pH value is higher than 8.0 while stirring; and filtering to obtain manganese salts and ferric hydroxide precipitation. The invention has the advantages of simple operating process, low energy consumption, easily-available and low-cost material, good separating effect and low residue content of valuable metals in the waste solution.

Description

technical field [0001] The invention relates to a method for separating compounds, in particular to a method for separating copper and manganese in a high-acidity copper-manganese solution. Background technique [0002] In the field of hydrometallurgy, extraction technology is often used to remove impurities from leachate. And in the extraction process of some organic extractants, such as P204, copper and manganese are just difficult to be separated and enter the stripping acid at the same time. When the copper content is not too high, all valuable metals such as copper and manganese will precipitate after adding soda ash to the mixed solution. But when the copper content in this solution is relatively high, adopting the above method again will cause great difficulties to the subsequent separation of copper and manganese, so a new technical solution is needed to solve the above problems. Contents of the invention [0003] The present invention is aimed at solving the def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/46C22B15/00C22B47/00
Inventor 梁永顺杜志君赵美平施建平杨再模陈萍马金燕
Owner 南通新玮镍钴科技发展有限公司
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