Demulsifying and detoxifying method of gallium extracting system

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...