Demulsifying and detoxifying method of gallium extracting system

A technology of demulsification and extraction, applied in the field of demulsification and detoxification of gallium extraction systems, can solve the problems of difficulty in continuing the extraction process, decline in product quality, and decline in gallium extraction rate, and achieve the effect of eliminating emulsification and poisoning.

Inactive Publication Date: 2010-11-24
南京中锗科技有限责任公司
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Problems solved by technology

During the extraction process, the dust, slag brought in by the machine, and the silica gel produced by the reaction can all cause emulsification, making it difficult to continue the extraction process; while ferric iron, trivalent arsenic, etc. and gallium will be extracted into the extractant simultaneously, and the concentration is too high or regeneration When the extraction agent is not enough, the extraction agent is emulsified and poisoned, the extraction rate of gallium decreases, and the product quality decreases

Method used

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Embodiment Construction

[0019] The demulsification and detoxification method and process flow of gallium extraction system of the present invention:

[0020] Step 1. Pretreatment of materials and liquids:

[0021] ① Elimination of suspended particles: 0.1-0.5Kg / m3 of polymer flocculant polypropylene amine (divided into anion and cation) is added to the feed liquid to coagulate and settle suspended particles such as silica gel. Settling time > 24H / level, use 1-3 level settling according to the size and quantity of suspended particles; and can correctly choose to use anion or cation according to the charge of the particle. The anions are stirred and dissolved in boiling water, and the cations are stirred and dissolved in normal temperature water, and then added to the feed solution.

[0022] ② Pretreatment of high-iron feed liquid: In a relatively closed container, sulfur dioxide gas (or sodium sulfite) is introduced into the feed liquid to achieve saturation, so as to reduce as much ferric iron in th...

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Abstract

The invention discloses a demulsifying and detoxifying method of a gallium extracting system, which is characterized by comprising the following steps of: A. processing of materials and liquids: the elimination of suspended particles, the preprocessing of a high-iron liquid and the preprocessing of a high-arsenic liquid; B. addition of a thinner and an improver in an extracting agent: adding 20-40 percent by volume of sulfonated kerosene as the thinner to reduce the viscosity of a load extracting agent, reducing emulsification and accelerating layering; adding 0.5-1 percent by volume of tributyl phosphate as the improver which can effectively inhabit the emulsification of a gallium extracting agent; and C. demulsification and detoxification in the extracting process: extracting by using a container or a pool, and inhabiting emulsification and accelerating detoxification by flexibly controlling and adopting the proper balance time and intensity of extraction, washing and reverse extraction. According to the operation of the method, the emulsifying and poisoning phenomena of the extracting agent in the gallium extracting process can be completely eliminated.

Description

Technical field: [0001] The invention relates to a method for demulsification and detoxification of a gallium extraction system. Background technique: [0002] In order to realize the extraction process, the two phases of oil and water must be fully mixed, and then the phases are clarified and separated, that is, the liquid in one phase must be highly dispersed in the other phase to form an emulsion, and the emulsion must be unstable. After that, it can be separated quickly. Therefore, the extraction process itself is the process of forming and destroying the emulsion, but due to various reasons, sometimes the formed emulsion is very stable and cannot be phase-separated in the clarification stage, or the phase-separation time is very long, which causes emulsification. The balance of the extractant needs to be controlled under different conditions so that the various metal ions extracted into the extractant can be completely back-extracted into the water phase in another sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/32C22B58/00
CPCY02P10/20
Inventor 汪洋刘阅卫宇峰
Owner 南京中锗科技有限责任公司
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