Dressing and smelting combined method for improving copper-cobalt mixed ore recovery rate with fluctuating oxidation rate

• Main Authors: WEI XINXIN, SHEN LOUYAN, YANG BIN, TANG GUOBIAO
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2022
• Subjects: 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 provides a dressing and smelting combined method for improving the recovery rate of copper-cobalt mixed ore with fluctuating oxidation rate, which comprises the following steps of: crushing raw ore, grinding and grading to prepare ore pulp; the ore pulp is subjected to reverse flotation, and carbon substances and reverse flotation tailings are obtained; the reverse flotation tailings are subjected to direct flotation, and copper sulfide concentrate, copper oxide concentrate, first cobalt concentrate and flotation tailings are obtained; mixing and magnetically separating the carbonaceous substances and the flotation tailings to obtain second cobalt concentrate and first final tailings; roasting and water-quenching the copper sulfide concentrate to obtain a first high-copper rich solution and water-quenched slag dense underflow; stirring and leaching the water quenching slag dense underflow, the copper oxide concentrate, the first cobalt concentrate and the second cobalt concentrate to obtain a se