Method for enriching valuable metals from sulfate solution containing valuable metal ions

• Main Authors: ZHAO YIXUAN, REN JIALIN, GAO BAOJUN, LI SHAOLONG, LIU YUQIN
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2023
• 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 relates to a method for enriching valuable metals from a sulfate solution containing valuable metal ions, comprising: providing a sulfate solution containing valuable metal ions, hydroxides of the valuable metals being insoluble in water; mixing the sulfate solution with lime milk and circulating second dense underflow, and carrying out first-stage valuable metal precipitation treatment to obtain slurry which is divided into first slurry and second slurry; the first slurry is separated to obtain first separation overflow and first separation underflow, the first separation underflow is circulated to the step of providing the sulfate solution, the first separation overflow is subjected to first thickening treatment to obtain first thick underflow and first thick overflow, and hydroxide of valuable metal is prepared from the first thick underflow; the second slurry is subjected to second thickening treatment to obtain second thickening overflow and second thickening underflow for circulation, and