METHOD FOR TREATING METAL-CONTAINING SOLUTION

• Main Authors: WANG, Kuiting, PENG, Jianhua, LU, Yeda, DAI, Jianghong, SUN, Ninglei, LI, Jun, FU, Jianguo, YIN, Shuyan, LIU, Guo
• Format: Patent
• Language: English; French; German
• Published: 29.11.2023
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The present disclosure provides a method for treating a metal-containing solution, in which the metal is selected from nickel, cobalt, zinc or copper, and the metal-containing solution comprises a metal sulfate. The method includes: (1) mixing the metal-containing solution with lime cream to obtain a liquid-solid mixture; (2) performing a thickening treatment on the liquid-solid mixture to obtain an overflow containing a metal hydroxide precipitate and an underflow containing calcium sulfate; and (3) filtering the overflow containing the metal hydroxide precipitate to obtain the metal hydroxide and a filtrate.