Scandium extraction technology of scandium-containing ultra-basic rock

• Main Authors: SUN JIANXI, YANG HUAN, YUAN ZHANYONG, SUN DAYONG, XIA ZHONGYONG, ZHANG WENHUA, GUO RUMIN
• Format: Patent
• Language: English
• Published: 07.01.2015
• 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; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS 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; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a scandium extraction technology of a scandium-containing ultra-basic rock. The scandium extraction technology comprises the following steps: 1) ore crushing and grinding, with a scandium-containing ultra-basic rock as a raw ore, crushing the raw ore and feeding to a ball mill, adding water to grind, so as to obtain ore pulp; 2) scandium magnetic separation, namely carrying out magnetic separation on the raw ore; 3) scandium flotation, namely carrying out flotation on magnetic separation tailings; and 4) chemical beneficiation, namely mixing magnetically separated rough scandium concentrate with floated rough scandium concentrate, then carrying out the procedures of roasting, pelletizing, leaching, extracting, pickling, reverse extraction, precipitation, roasting and the like, and finally out scandium metal. The technology disclosed by the invention is reasonable and scientific in steps; aiming at the distribution characteristics of scandium in the ore, magnetic separation, flotation and chemical beneficiation are ingeniously combined, so that the technology has a good separation effect, effective utilization and efficient extraction of the scandium-containing ultra-basic rock are achieved, scandium can be fully recovered, the recovery rate of the scandium is high, the overall process is concise in processing steps, and easy to achieve, the production flow is effectively shortened, and wide popularization and application are facilitated.