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Technology for comprehensively recovering complex material containing lead, bismuth, cobalt and nickel through wet method

A complex and high-quality material technology, which is applied in the field of comprehensive recovery of complex materials containing lead, bismuth, cobalt, and nickel, can solve problems such as difficulty in forming production capacity, and achieve the effects of wide adaptability, simple operation, and less auxiliary materials

Active Publication Date: 2013-03-27
CHENZHOU CITY JINGUI SILVER IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the global nickel sulfide ore resources are in crisis, and the development and utilization of new laterite nickel ore are affected by many factors, and it is difficult to form production capacity in a short period of time.
Therefore, the comprehensive recovery of valuable metals lead, bismuth, cobalt and nickel is extremely important, but the current patent literature is still blank in terms of the unified and comprehensive recovery of these four metals by wet method

Method used

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  • Technology for comprehensively recovering complex material containing lead, bismuth, cobalt and nickel through wet method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Material composition: lead: 27.64%, bismuth: 12.60%, cobalt: 9.21%, nickel: 16.38%.

[0038] The implementation of this material adopts the production process such as figure 1 , after drying and crushing to 160 mesh, take 1.5kg of material and react for 4 hours under the conditions of sulfuric acid concentration 2.5mol / L, hydrochloric acid concentration 1.0mol / L, liquid-solid ratio 4:1, temperature 90°C, pH<0 when the reaction is complete, and filter Finally, take the reaction solution and add 3.0mol / L lye to adjust the pH to 2.0. At room temperature, add water to adjust the pH to 3. Continue to stir and react for 1 hour. After filtering, add sodium hypochlorite solution to the filtrate, and slowly add lye to adjust the pH to 4. Precipitate cobalt, continue stirring and reacting at a temperature of 55°C for 2 hours, add soda ash to the filtrate after filtration to adjust pH=10, continue stirring and reacting at a temperature of 50°C for 1 hour, and then filter. Obtain ...

Embodiment 2

[0042] Material composition: lead: 38.53%, bismuth: 18.34%, cobalt: 15.09%, nickel: 20.61%.

[0043] The implementation of this material adopts the production process such as figure 1 , after drying and crushing to 200 mesh, take 2.2kg of material in the conditions of sulfuric acid concentration 2.6mol / L, hydrochloric acid concentration 1.2mol / L, liquid-solid ratio 4:1, temperature 93℃, reaction time 4h, reaction complete pH<0, filter Finally, take the reaction solution and add 3.0mol / L lye to adjust the pH=2.0. At room temperature, add water to adjust the pH=2.5. Continue to stir and react for 1 hour. After filtering, add sodium hypochlorite solution to the filtrate, and slowly add lye to adjust the pH=4. Precipitate cobalt, continue to stir and react at a temperature of 50°C for 2 hours, add soda ash to the filtrate after filtration to adjust pH=9.5, continue to stir and react for 1 hour at a temperature of 45°C, and then filter. Obtain lead slag, bismuth oxychloride, cobal...

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Abstract

The invention relates to a technology for comprehensively recovering a complex material containing lead, bismuth, cobalt and nickel through a wet method. The technology comprises the following steps: ball-milling the complex material to 200 meshes, leaching by a mixed acid to obtain bismuth, cobalt and nickel and remain lead residual in slag, hydrolyzing and neutralizing the leaching solution to precipitate bismuth, oxidizing and neutralizing to precipitate cobalt, and adding soda ash to precipitate nickel in order to reach the comprehensive recovery and separation effect of lead, bismuth, cobalt and nickel through the wet method. The technology has the advantages of simple and clear flow, strong raw material adaptability, low cost, and reasonable separation and utilization of valuable metal resources.

Description

technical field [0001] The invention relates to a process for comprehensively recovering complex materials containing lead, bismuth, cobalt and nickel by wet method, and belongs to the field of nonferrous metal hydrometallurgy and secondary resource recovery. Background technique [0002] The process of industrialization and urbanization in China has actively promoted the consumption of lead. In 2004, China surpassed the United States to become the world's largest lead consumer. From 2000 to 2009, the average annual growth rate of lead apparent consumption in China was 14.4%, reaching 3.68 million tons in 2009. During the period, the average annual growth rate of actual consumption was 21%, and it was 3.33 million tons in 2009. Bismuth is one of the precious resources of our country. China is the world's largest bismuth resource country, producer, consumer and trading country, and has the ability to influence the international market. However, due to large-scale unreasonab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B23/00C22B13/00C22B30/06C22B3/06C22B3/44
CPCY02P10/20
Inventor 杨跃新覃小龙曹永贵
Owner CHENZHOU CITY JINGUI SILVER IND CO LTD
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