Production process of high purity silver by high frequency electrolysis

A production process and high-purity technology, applied in the field of precious metal purification, can solve the problems of silver color difference, easy pollution of chemical reagents, and inability to effectively recover silver.

Active Publication Date: 2016-01-27
嘉善凝溪建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a series of silver-containing mineral powdering and impurity removal, electrolytic oxidation treatment, high-frequency oscillation filtration treatment, activation treatment, etc. The production process steps of high-purity silver and the special design of relevant process parameters form a production process of high-frequency electrolysis of high-purity silver, which effectively overcomes the complexity of impurities in the prior art, the inability to effectively recover silver, and the color difference of recovered silver. Due to technical problems such as many chemical reagents and easy pollution, it has achieved a wide range of adaptation to the treatment scale, simple equipment, small footprint, suitable for existing process transformation, low investment and quick results, low treatment cost, multi-step impurity removal, and high impurity removal rate. High, good product quality and stable color and other beneficial advantages and effects

Method used

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Effect test

Embodiment 1

[0022] A production process for high-frequency electrolysis of high-purity silver, characterized in that the production process for high-frequency electrolysis of high-purity silver includes the following steps in sequence: silver-containing mineral powdering to remove impurities, electrolytic oxidation treatment, high-frequency oscillation filtration treatment, Activation treatment.

Embodiment 2

[0024] A production process for high-frequency electrolysis of high-purity silver, characterized in that the production process for high-frequency electrolysis of high-purity silver includes the following steps in sequence: silver-containing mineral powdering to remove impurities, electrolytic oxidation treatment, high-frequency oscillation filtration treatment, Activation treatment; the step of powdering and removing impurities of the silver-containing minerals: first pass the silver-containing minerals through a low-temperature sealed dryer, and then perform powder cutting treatment through a multi-layer high-speed spiral cutting tool, wherein the low-temperature sealed drying The temperature is controlled at 117~123°C. Each layer of high-speed helical cutting tool includes a double helix shaft and a plurality of cutting blades integrally cast on the outer surface of the double helix shaft. Each cutting blade has at least three cutting edges. The above powder The average part...

Embodiment 3

[0026] A production process for high-frequency electrolysis of high-purity silver, characterized in that the production process for high-frequency electrolysis of high-purity silver includes the following steps in sequence: silver-containing mineral powdering to remove impurities, electrolytic oxidation treatment, high-frequency oscillation filtration treatment, Activation treatment; the step of powdering and removing impurities of the silver-containing minerals: first pass the silver-containing minerals through a low-temperature sealed dryer, and then perform powder cutting treatment through a multi-layer high-speed spiral cutting tool, wherein the low-temperature sealed drying The temperature is controlled at 117~123°C. Each layer of high-speed helical cutting tool includes a double helix shaft and a plurality of cutting blades integrally cast on the outer surface of the double helix shaft. Each cutting blade has at least three cutting edges. The above powder The average part...

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Abstract

The invention relates to a production process of high purity silver by high frequency electrolysis. Through the special design of silver-containing mineral powdering purification, electrolytic oxidation treatment, high frequency oscillation filtration treatment and activation treatment process steps and special optimization of relevant parameters, the technical problems of complex impurity species, incapability to effective recovery of silver, poor fineness of recovered silver, many chemical reagents, easy pollution and the like are overcome, and the production process provided by the invention realizes the advantages and effects of wide application range of treatment scale, simple equipment, small floor space, applicability to existing process transformation, small investment and quick effect, low treatment cost, multi-step purification, high impurity removal rate, good product quality and stable fineness, etc.

Description

technical field [0001] The invention relates to the technical field of precious metal purification, in particular to a production process of high-purity silver, more specifically to a production process of high-frequency electrolysis of high-purity silver. Background technique [0002] In recent years, we know that silver is generally associated with minerals in the form of simple substance. The main metal minerals are pyrite, arsenite, etc., followed by galena, sphalerite, pyrrhotite, arsenopyrite, etc., and non-metallic minerals are quartz, feldspar and carbonate minerals. Silver is closely related to pyrite and arsenopyrite, and generally forms associated ores. For arsenopyrite the main component is AsFeS 2 , SiO 2 And other trace elements such as silver associated with it. [0003] At present, in the field of silver smelting, three pretreatment methods are generally used for refractory gold concentrates containing other metals. The first is the secondary boiling roa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C1/20C25C7/06
Inventor 张吉
Owner 嘉善凝溪建设有限公司
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