Method for recovering quartz and calcite from tailings

• Main Authors: WANG XIN, LIU ZHIGUO, WANG YAYUN, YU CHUANBING, KANG JINXING
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2023
• 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 discloses a method for recovering quartz and calcite from tailings, which comprises the following steps of: 1) carrying out calcite primary flotation on the tailings by using a primary flotation collecting agent to obtain calcite rough concentrate and primary flotation tailings; and secondly, an activating agent containing sulfide and lead salt is added into the primary flotation tailings, and calcite enhanced flotation is conducted on the primary flotation tailings through an enhanced flotation collecting agent, so that quartz rough concentrate is obtained. According to the method for recycling the quartz and the calcite from the tailings, the sulfide and the lead salt are adopted for activating the calcite, the tailings subjected to preliminary flotation are subjected to calcite reinforced flotation, the calcite which is difficult to float in the preliminary flotation process is removed, and the calcite content in a quartz product is reduced. 本发明公开了一种从尾矿中回收石英和方解石的方法，包括如下步骤：步骤一)使用初步浮选捕收剂对所述尾矿进行