A pressurized leach method of recovering rhenium from solution arsenic sulfide

2014 
A pressurized leach method of recovering rhenium from solution arsenic sulfide, relates to the recovery of rhenium from a solution containing rhenium, rhenium particularly enriched liquid from the pressure leaching arsenic sulfide. Characterized in that the step of the process so that it comprises: (1) adding the filter cake arsenic oxygen pressure leaching; (2) reduction of the sulfur dioxide produced by the leaching solution trioxide; arsenic heavy liquor was extracted rhenium extraction solution by multi-stage counter- extraction, evaporation and crystallization of ammonium perrhenate production. The method of the present invention, a reduction of the oxygen pressure leaching -SO2 - extraction technique, ammonium perrhenate to obtain the final product, the whole process, the process is simple, high recovery rate of rhenium, rhenium extractant low price, without causing valuable metal resources secondary waste, can create a good economic benefits for the enterprise.
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