Method for preparing industrial-grade manganese carbonate by utilizing copper chloride manganese liquid

A technology of manganese carbonate and copper chloride, which is applied in the preparation of manganese compounds, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as waste of resources, and achieve the effects of reducing processing costs, low production costs, and short processing procedures.

Active Publication Date: 2020-08-25
浙江格派钴业新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment method of P507 raffinate is to recover the nickel in it by chemical precipitation or ion exchange method, but not to treat the sodium sulfate in it, resulting in a certain waste of resources

Method used

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  • Method for preparing industrial-grade manganese carbonate by utilizing copper chloride manganese liquid
  • Method for preparing industrial-grade manganese carbonate by utilizing copper chloride manganese liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of method utilizing copper manganese chloride liquid to prepare technical grade manganese carbonate, is characterized in that: comprise the steps:

[0030] S1 copper replacement: add iron powder to the copper-manganese solution, after the reaction is complete, filter out the copper slag to obtain a copper-removed solution. After copper removal, the solution only contains 0.04g / L of copper, and the copper recovery rate reaches 99.2%.

[0031] S11: get 500ml copper manganese liquid in 2L beaker, its composition is to contain copper 4.8g / L, manganese 82.3g / L, calcium 19.6g / L, aluminum 7.1g / L for subsequent use;

[0032] S12: Heating the reserved copper-manganese liquid in a water bath at 60°C, adding 3.0 g of iron powder, stirring and reacting for 1 hour, filtering to remove copper slag, and obtaining a copper-removed liquid;

[0033] S2 calcium iron and aluminum removal: add P507 raffinate to the liquid after copper removal. After the reaction is complete, add hyd...

Embodiment 2

[0042] A kind of method utilizing copper manganese chloride liquid to prepare technical grade manganese carbonate, is characterized in that: comprise the steps:

[0043] S1 copper replacement: add iron powder to the copper-manganese solution, after the reaction is complete, filter out the copper slag to obtain a copper-removed solution. After copper removal, the solution only contains 0.04g / L of copper, and the copper recovery rate reaches 99.2%.

[0044] S11: get 1L copper manganese liquid in 4L beaker, its composition is to contain copper 4.8g / L, manganese 82.3g / L, calcium 19.6g / L, aluminum 7.1g / L for subsequent use;

[0045] S12: Heating the spare copper-manganese solution in a water bath at 60°C, adding 6.0g of iron powder, stirring and reacting for 1 hour, filtering to remove copper slag, and obtaining a copper-removed solution;

[0046] S2 calcium iron and aluminum removal: add P507 raffinate to the liquid after copper removal. After the reaction is complete, add hydrog...

Embodiment 3

[0055] A kind of method utilizing copper manganese chloride liquid to prepare technical grade manganese carbonate, is characterized in that: comprise the steps:

[0056] S1 copper replacement: add iron powder to the copper-manganese solution, after the reaction is complete, filter out the copper slag to obtain a copper-removed solution. After copper removal, the solution only contains 0.04g / L of copper, and the copper recovery rate reaches 99.2%.

[0057] S11: get 2L copper manganese liquid in 8L beaker, its composition is to contain copper 4.8g / L, manganese 82.3g / L, calcium 19.6g / L, aluminum 7.1g / L for subsequent use;

[0058] S12: Heat the spare copper-manganese solution in a water bath at 60°C, add 12.0g of iron powder, stir and react for 1 hour, filter to remove copper slag, and obtain a copper-removed solution;

[0059] S2 calcium iron and aluminum removal: add P507 raffinate to the liquid after copper removal. After the reaction is complete, add hydrogen peroxide. Afte...

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Abstract

The invention discloses a method for preparing industrial-grade manganese carbonate by utilizing copper chloride manganese liquid. The method is characterized by comprising the following steps: S1, copper replacement: adding iron powder into the copper manganese liquid, filtering out copper slag after complete reaction to obtain copper-removed liquid, and after copper removal, ensuring that the solution only contains 0.04 g / L of copper and the recovery rate of copper reaches 99.2%; S2, removing calcium, iron and aluminum, namely adding P507 raffinate into the copper-removed solution; after thereaction is completed, adding hydrogen peroxide; after complete oxidation, slowly adding an alkaline substance, after further complete reaction, filtering out waste residues, and separating to obtaincalcium, iron and aluminum removed liquid; S3, manganese precipitation: slowly adding soluble carbonate into the calcium, iron and aluminum removed liquid, carrying out carbonation to precipitate manganese, precipitating manganese and a small amount of other metal ions, and filtering to obtain crude manganese carbonate. The method is short in treatment process and simple in process, copper replacement, impurity removal and manganese precipitation are completed in three steps, and only three times of filtration and separation are adopted. Most impurity metal elements except copper and manganese are removed in an impurity removal step in a coprecipitation form.

Description

technical field [0001] The invention relates to the technical field of heavy metal industrial wastewater treatment, in particular to a method for preparing industrial-grade manganese carbonate by using copper-manganese chloride liquid. Background technique [0002] In the process of preparing cobalt salts from cobalt ore and cobalt intermediates, the backwash solution obtained after P204 extraction and removal of impurities is an acidic chloride solution containing a large amount of copper, manganese and other metal ions, called copper-manganese solution. The traditional method of treating wastewater containing heavy metal ions is mainly to precipitate and separate heavy metal ions from wastewater. For example, most enterprises use lime neutralization, alkali neutralization, etc. to treat copper-manganese waste liquid. However, such treatment will produce a large amount of copper-manganese slag, the cost of hazardous waste treatment is high, and secondary pollution may also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/00
CPCC01G45/00C01G45/003C01P2006/80
Inventor 曹栋强龚丽锋王红忠黄飞中方志国罗瑞平
Owner 浙江格派钴业新材料有限公司
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