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Method and device used for gold purification

A gold and gold sand technology, applied in the field of gold purification, can solve the problems of low efficiency of gold refining technology

Pending Publication Date: 2018-10-12
SHANDONG MOKINGRAN JEWELRY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a method for gold purification, also provides a kind of device suitable for the above-mentioned gold purification method, to solve the problem of low efficiency of gold extraction technology in the prior art

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  • Method and device used for gold purification

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Embodiment Construction

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention belongs to the technical field of gold purification, and particularly discloses a method and device used for gold purification. The method used for gold purification comprises the stepsof S1, aqua regia gold dissolving, wherein aqua regia is continuously added into gold sand containing a small amount of silver until excessive immersion is achieved, and the gold dissolving reaction is finished; S2, nitric acid esterification, wherein ethyl alcohol is continuously and dropwise added into the solution in the S1 until the reaction is finished; S3, condensation, liquid in the S2 is condensed to the room temperature; S4, filtering, liquid in the S3 is filtered, and solid-solution separation is achieved; S5, reduction, SO2 gas is led into the liquid filtered in the S4 until gold reduction is finished. Through the above step, the gold purification precision is greatly improved, high-purity gold can be extracted from the low-purity gold at a time, and meanwhile, the finished product quality of the high-purity gold is ensured.

Description

technical field [0001] The invention belongs to the technical field of gold purification and alchemy, and in particular relates to a method and device for gold purification. Background technique [0002] With the advancement and development of science and technology, gold with a gold content of 99.99% can no longer meet the needs of special industries such as aerospace, and the production of high-purity gold with a gold content of 99.99% and above has attracted more and more attention. Due to its good market prospects, various Enterprises are scrambling to study the production process of high-purity gold. [0003] The methods for preparing high-purity gold mainly include chemical reduction, solvent extraction, and electrolytic refining, but each preparation technology has its specific scope of application and advantages and disadvantages. Electrolytic refining is an important production method for the purification of crude gold. It has been widely used due to its advantages...

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Application Information

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IPC IPC(8): C22B11/00C22B3/06C22B3/22C22B3/44
CPCC22B3/06C22B3/22C22B3/44C22B11/04Y02P10/20
Inventor 王忠善董玉兴王国鑫孙芳张晓辉
Owner SHANDONG MOKINGRAN JEWELRY
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