Sulfuric acid decomposition device and method for uranium-niobium-containing polymetallic ore

• Main Authors: LIU HUIWU, WANG GUISHUO, CHENG HAO, LI GUANG, LIU KANG, LIU ZHONGCHEN, XIANG QIULIN, MA JIA, TIAN YUHUI, LIANG GENGYU
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2024
• 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 provides a sulfuric acid decomposition device and method for uranium-niobium-containing polymetallic ore, and relates to the technical field of hydrometallurgy. The device provided by the invention is used for carrying out sulfuric acid decomposition on uranium-niobium-containing polymetallic ore, the mixing, curing and leaching processes of ore powder and concentrated sulfuric acid are realized, and through the design of the process and the decomposition-leaching integrated tank device, the high-temperature acidolysis and leaching processes are carried out in the same equipment, so that the configuration of system equipment is reduced, and the cost is reduced. The transfer of high-temperature and high-acid materials between decomposition and extraction equipment is avoided; and a'dynamic 'curing-'self-heating' enhanced decomposition process is adopted, so that the reaction mass transfer is enhanced, and the energy consumption is reduced. According to the method, the valuable metals uranium and