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Comprehensive treatment process for silver-bearing material in silver nitrate production

A technology for comprehensive treatment and silver nitrate is applied in the field of comprehensive treatment technology of silver-containing materials, which can solve the problems of complex comprehensive treatment process, high silver content, long process, etc., and achieves high economic and technical indicators, low treatment cost, and simplified treatment. The effect of the process

Inactive Publication Date: 2020-02-28
中科铜都粉体新材料股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the difficult problems of complex silver-containing material comprehensive treatment process, long process and high cost in the existing silver nitrate production, mainly aiming at the high silver content of the material, and the silver phase is mainly composed of silver oxide and silver chloride Provide a comprehensive treatment process for silver-containing materials in the production of silver nitrate

Method used

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  • Comprehensive treatment process for silver-bearing material in silver nitrate production
  • Comprehensive treatment process for silver-bearing material in silver nitrate production
  • Comprehensive treatment process for silver-bearing material in silver nitrate production

Examples

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Embodiment 1

[0015] Embodiment 1, (1) batching: the silver-containing material in the production of silver nitrate is carried out pretreatment, removes the sundry greater than 5mm in diameter, gets 100 kilograms of materials and puts into reaction kettle, adds 500 liters of water and stirs evenly, adds 30 kilograms of hydrogen Add sodium oxide and heat up to 60°C; add 20 kg of 80% hydrazine hydrate aqueous solution to the batching kettle, add 40 liters of water and stir evenly.

[0016] (2) Reaction: When the temperature of the reaction kettle reaches the specified value, the solution in the batching kettle is slowly and evenly added to the reaction kettle, and the reaction process is continuously and evenly stirred, and the cumulative liquid discharge time is 30 minutes. When the pH value is less than or equal to 10, add a small amount of solid sodium hydroxide, and keep the temperature at 60°C for 30 minutes after the addition;

[0017] (3) Rinse: put the material into the centrifuge for...

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Abstract

The invention discloses a comprehensive treatment process for a silver-bearing material in silver nitrate production. The comprehensive treatment process comprises the following steps of 1, liquid preparation; 2, reaction; 3, rinsing; 4, drying; 5, anode plate casting; 6, silver electrolysis; 7, finished product casting. According to the comprehensive treatment method, the treatment process of thesilver-bearing material generated in the silver nitrate production is effectively simplified, and the method has the advantages of being low in treatment cost and high in economic and technical index.

Description

technical field [0001] The invention relates to a comprehensive treatment process for silver-containing materials, in particular to a comprehensive treatment process for silver-containing materials in the production of silver nitrate. Background technique [0002] With the rapid development of the electronic information industry, the proportion of silver used in the electronic industry is getting higher and higher, especially the popularization of photovoltaic technology, one of the clean energy technologies, has greatly promoted the application of silver in industry. Silver nitrate is the main raw material of silver for industrial use, and domestic production and sales are increasing year by year. The effective recovery and treatment of silver-containing materials produced in the production of silver nitrate is an important link to ensure the comprehensive utilization of silver. [0003] The silver-containing materials in the production of silver nitrate mainly include the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B11/00C25C1/20
CPCC22B7/006C22B11/042C25C1/20Y02P10/20
Inventor 刘瑜钱文生王学良万代发陆道昌吴海松王胜李申平
Owner 中科铜都粉体新材料股份有限公司
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