Gold concentrate calcine multielement gradient recovery method

• Main Authors: WANG WEIZHEN, GUO CHIHAO, WANG YUN, XU XIAOHUI, CHANG YAOCHAO, SUN LIUGEN
• Format: Patent
• Language: English
• Published: 19.08.2015
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to a gold concentrate calcine multielement gradient recovery method. According to the gold concentrate calcine multielement gradient recovery method, chloridizing volatilization separation and graded high temperature roasting are combined; steps including material mixing, wet grinding, pelleting, drying, roasting, spraying, ore pulp press filtration, and metal recovery are adopted; gold recovery rate is higher than 95%; recovery rate of elements such as silver, copper, and zinc is higher than 80%; and complete utilization of resources is realized.