Complex copper-lead-zinc polymetallic ore stage grinding and stage separation beneficiation method and collecting agent thereof

• Main Authors: ZHANG HUITING, ZHU XIANWEN, TIAN XIAODONG, LONG CHANGMING, WANG YANG, LAI CHUNHUA, ZHONG YONGSHENG, WU MINGHAI, YANG YANZHOU, WENG CUNJIAN, GAO XIANGDONG
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2020
• Subjects: DIFFERENTIAL SEDIMENTATION; FLOTATION; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; PERFORMING OPERATIONS; SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING

The invention discloses a complex copper-lead-zinc polymetallic ore stage grinding and stage separation beneficiation method and a collecting agent thereof. Aiming at the problem that copper-lead-zincsulphide ores containing minerals such as tetrahedrite, chalcopyrite, galena, sphalerite and the like and embedded with fine granularity are difficult to separate, a two-stage ore grinding and respective sorting process is adopted, dissociated copper and lead minerals are preferentially floated under a coarse fraction, and then regrinding flotation is carried out to recover residual minerals. Thetechnological process comprises the first stage of copper preferential flotation, copper rough concentrate regrinding and concentration, floating copper tailings preferential lead selection and leadrough concentrate regrinding and concentration, and the second stage of lead selection tailings regrinding prior floating lead selection and lead selection tailings zinc selection. Meanwhile, a novelagent XK-410 with high selec