Method for recovering molybdenum, uranium and extractant from three-phase substance of molybdenum back extraction liquid

• Main Authors: NIU YUQING, ZHOU ZHIQUAN, KANG SHAOHUI, ZHAO FENGQI, SHU ZUJUN, LIU HUI, REN YAN
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention belongs to the technical field of extraction and separation of uranium and molybdenum in hydrometallurgy, and particularly relates to a method for recycling molybdenum, uranium and an extraction agent in a molybdenum back-extraction liquid three-phase substance. Dissolving the three-phase substance viscosity by adopting a diluent under a heating condition, and then filtering to obtain a liquid phase and a solid phase; calcining the solid phase to remove ammonium to obtain a U3O8 product; a light phase of a liquid phase is a kerosene solution containing a low-concentration extracting agent, and a heavy phase at the lower part is an ammonium molybdate solution and is used as a molybdenum finished product liquid. According to the method, the problem of recycling the extraction agent wrapped in the three-phase substance is solved, so that the extraction agent is recycled; the extraction agent wrapping uranium precipitation is broken, and the uranium yield is increased; the viscosity in the three-pha