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A method for recycling cobalt-containing non-ferrous metal smelting waste residue

A non-ferrous metal and waste slag technology, which is applied in the field of non-ferrous metal smelting waste slag recycling, can solve the problem that toxic and harmful elements cannot be effectively treated, cobalt and other elements cannot be recycled, and waste slag resources cannot be reduced and recycled. And other issues

Active Publication Date: 2021-07-06
JIANGMEN CHANCSUN UMICORE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current treatment of non-ferrous metal smelting waste slag cannot effectively recycle cobalt and other elements, and can not effectively deal with toxic and harmful elements, so the reduction, recycling and harmlessness of waste slag resources cannot be realized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for recycling non-ferrous metal smelting waste slag containing cobalt, comprising the following steps:

[0033] (1) Grind 200 g of waste residue to a particle size of 0.08-0.1 mm; mix the waste residue with 100 mL of 3mol / L hydrochloric acid evenly, react at 60°C for 2 hours, and filter to obtain filtrate A and filter residue A;

[0034] (2) Mix filtrate A with 2g of sodium sulfate, react at 80°C for 4 hours, filter to obtain filtrate B and filter residue B;

[0035] (3) The pH value of the filtrate B is adjusted to 4, and P204 is added for extraction to obtain a stripping liquid and a raffinate;

[0036] The pH value of the stripping solution was adjusted to 4, 10 g of manganese powder was added, reacted at 50° C. for 3 hours, and filtered to obtain manganese sulfate filtrate and copper filter residue.

[0037] (4) add ammonia water to adjust the pH value of the raffinate to 8, add 71g sodium sulfamate, react for 2 hours at 25°C, collect the solid product by ...

Embodiment 2

[0040] A method for recycling non-ferrous metal smelting waste slag containing cobalt, comprising the following steps:

[0041] (1) Grinding 200 g of waste residue to a particle size of 0.08-0.1 mm; mixing the waste residue with 100 mL of 3 mol / L hydrochloric acid evenly, reacting at 65° C. for 2 hours, and filtering to obtain filtrate A and filter residue A;

[0042] (2) Mix the filtrate A with 2.5g sodium sulfate uniformly, react at 85° C. for 3 hours, and filter to obtain filtrate B and filter residue B;

[0043] (3) Adjust the pH value of the filtrate B to 3, add P204 for extraction, and obtain the stripping liquid and raffinate; adjust the pH value of the stripping liquid to 4, add 20 g of manganese powder, and react at 55 ° C for 1.5 Hours, filtered to obtain manganese sulfate filtrate and copper filter residue.

[0044] (4) add ammonia water to adjust the pH value of the raffinate to 10, add 86g sodium sulfamate, react at 30°C for 2 hours, collect the solid product by ...

Embodiment 3

[0047] A method for recycling non-ferrous metal smelting waste slag containing cobalt, comprising the following steps:

[0048] (1) Grinding 200 g of waste residue to a particle size of 0.08-0.1 mm; mixing the waste residue with 100 mL of 3 mol / L hydrochloric acid evenly, reacting at 65° C. for 5 hours, and filtering to obtain filtrate A and filter residue A;

[0049] (2) Mix filtrate A with 4g of sodium sulfate, react at 85°C for 5 hours, filter to obtain filtrate B and filter residue B;

[0050] (3) Adjust the pH value of the filtrate B to 4, add P204 for extraction, and obtain the stripping liquid and raffinate; adjust the pH value of the stripping liquid to 5, add 30 g of manganese powder, and react at 70 ° C for 1 hour , filtered to obtain manganese sulfate filtrate and copper filter residue.

[0051] (4) Add ammonia water to adjust the pH value of the raffinate to 9, add 120g sodium sulfamate at 25°C, react for 3 hours, collect the solid product by filtering and washing...

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PUM

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Abstract

The invention relates to the field of resource recovery, in particular to a method for recycling cobalt-containing nonferrous metal smelting waste residue. The treatment method of the present invention comprises the following steps: (1) carrying out acid leaching treatment on the waste residue, and filtering to obtain filtrate A and filter residue A; (2) mixing the filtrate A and sodium sulfate evenly, and reacting at 80-85°C for 3 -5 hours, filter to obtain filtrate B and filter residue B; (3) adjust the pH value of said filtrate B to 3-4, add extractant to extract, obtain stripping liquid and raffinate; (4) said Adjust the pH value of the raffinate to 8-10, add sodium sulfamate, react at 20-30°C for 1-3 hours, collect the solid product; roast the solid product to obtain cobalt sulfamate. The invention can effectively realize the reduction, recycling and harmlessness of cobalt-containing nonferrous metal smelting waste residue resources.

Description

technical field [0001] The invention relates to the field of resource recovery, in particular to a method for recycling cobalt-containing nonferrous metal smelting waste residue. Background technique [0002] my country is a big producer of non-ferrous metals. According to statistics, the amount of non-ferrous metallurgical waste residues in my country has reached 7438×10 4 tons, covering an area of ​​865×10 4 m 2 , but also with an annual emission of about 920×10 4 The rate of tons is increasing year by year. The treatment of non-ferrous metallurgical waste residues in my country is mainly open-air stacking, and the comprehensive utilization rate is low, with an average utilization rate of only 45%. The stacking of so many non-ferrous metallurgical waste residues has brought a series of social problems such as land occupation, soil pollution, and water pollution. However, waste residue is not a completely useless substance, but a substance that was discarded at a certa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22B3/38C22B23/00C22B47/00C22B15/00C04B18/14
CPCC04B18/144C22B7/006C22B7/007C22B15/0063C22B15/0069C22B23/0423C22B23/0461C22B47/00C22B3/3846Y02W30/91Y02P10/20
Inventor 李征征赵世贞赵君风田吉平
Owner JIANGMEN CHANCSUN UMICORE IND