Sorting method for carnallite type ore

• Main Authors: LI FENG, TIAN PENGJIE, ZHANG HONGRU
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2020
• 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 relates to a separation method for carnallite type ore, and belongs to the technical field of mineral processing. The method comprises the following steps of crushing carnallite type rawore to be below 10-30mm; screening, namely feeding oversize products into gravity separation operation, feeding undersize products into ore grinding operation before reverse flotation operation, andcontrolling the size of screen holes to be 1-4mm; enabling the oversize products to be subjected to gravity separation operation, and separating out two products of gravity separation rough concentrate and gravity separation tailings; feeding reselected rough concentrate into ore grinding operation after pulp mixing; and feeding the ground ore pulp into classification operation, enabling classification overflow to selectively and automatically flow to cold decomposition crystallization operation or carnallite reverse flotation operation according to the content of sodium chloride, and preparing potassium chloride conce