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A kind of method utilizing copper manganese chloride liquid to prepare industrial grade manganese carbonate

A technology of manganese carbonate and copper chloride, applied in chemical instruments and methods, preparation of manganese compounds, manganese compounds, etc., can solve problems such as waste of resources, and achieve the effects of reducing treatment costs, being environmentally friendly, and having a short treatment process.

Active Publication Date: 2021-03-02
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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  • A kind of method utilizing copper manganese chloride liquid to prepare industrial grade manganese carbonate
  • A kind of method utilizing copper manganese chloride liquid to prepare industrial grade manganese carbonate

Examples

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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 using copper-manganese chloride liquid, which is characterized in that it comprises the following steps: the S1 replaces copper: adding iron powder to the copper-manganese liquid, and filtering out the copper after the reaction is complete After removing copper, the solution only contains 0.04g / L of copper, and the recovery rate of copper reaches 99.2%; S2 decalcification of iron and aluminum: add P507 raffinate to the solution after copper removal. After the reaction is complete, add hydrogen peroxide. After the oxidation is complete, slowly add alkaline substances, and after the further reaction is complete, filter out the waste residue and separate the liquid after decalcification of iron and aluminum; S3 manganese precipitation: slowly add soluble carbonate to the liquid after decalcification of iron and aluminum, Manganese is precipitated by carbonation, manganese and other small amount of metal ions are precipitated, and crude manganese carbonate is obtained by filtration. The present invention has a short treatment process and a simple process. Copper replacement, impurity removal, and manganese precipitation are completed in three steps, and only three filtration separations are used. Most impurity metal elements other than copper and manganese are removed in the form of co-precipitation in the impurity removal step.

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 Patents(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