Beneficiation process for recovering fluorite from tailings

• Main Authors: WANG HONGLING, GAO YUDE, YANG XIAOWEN, WU DI, MENG QINGBO, REN XINGMIN
• Format: Patent
• Language: Chinese; English
• Published: 11.09.2020
• Subjects: DIFFERENTIAL SEDIMENTATION; FLOTATION; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS; PERFORMING OPERATIONS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TRANSPORTING

The invention discloses a beneficiation process for recovering fluorite from tailings, which comprises the following steps: carrying out weak magnetic-strong magnetic operation on raw ore to obtain anon-magnetic product; concentrating the non-magnetic product by using a first concentration box to obtain a first concentrated underflow, adding clear water to dilute the first concentrated underflow,and further concentrating the mixture in a second concentration box to obtain a second concentrated underflow; performing fluorite roughing and scavenging on the second concentrated underflow to obtain rough concentrate, performing concentration I, concentration II, concentration III and concentration IV on the rough concentrate, wherein the concentrate of the concentration IV is final concentrate. Waste is thrown through magnetic separation, so that pre-enrichment of fluorite is achieved, and the flotation operation handling capacity is reduced; through two-stage concentration operation, slime and ore pulp agents are