Method for conducting selective substep flotation separation on molybdenum and rhenium in acid solution

• Main Authors: XUE YUBIN, HUANG YANFANG, YANG SHUZHEN, LIU BINGBING, SU SHENGPENG, WANG WENJUAN, HAN GUIHONG
• Format: Patent
• Language: Chinese; English
• Published: 07.02.2020
• Subjects: CHEMISTRY; DIFFERENTIAL SEDIMENTATION; FERROUS OR NON-FERROUS ALLOYS; FLOTATION; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; METALLURGY; PERFORMING OPERATIONS; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a method for conducting selective substep flotation separation on molybdenum and rhenium in an acid solution. The method comprises the steps of sequentially adding a pH regulator, a rhenium acid radical precipitant and a particle stabilizer into the acid solution containing molybdenum acid radicals and rhenium acid radicals to obtain a rhenium-containing particle suspension, then adding a surfactant, and introducing bubbles to conduct flotation separation on rhenium components; then adding a pH regulator, a molybdenum acid radical precipitant and a particle stabilizer into the remaining solution to obtain a molybdenum-containing particle suspension, adding the surfactant again, and introducing bubbles to conduct flotation separation on molybdenum components. By means of the method, the selective separation effect on molybdenum and rhenium is good, the process flow is simple and low in cost, and the method is particularly suitable for rhenium and molybdenum separation on the acid soluti