Physical concentration and phosphorus reduction method for skarn-type high-phosphorus molybdenum ore

• Main Authors: YAN WEIPING, WANG XIUFEN, MAO YILIN, YANG JINZHONG, CHEN XIAOQING, LIU NENGYUN
• Format: Patent
• Language: Chinese; English
• Published: 09.03.2016
• Subjects: DIFFERENTIAL SEDIMENTATION; FLOTATION; 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 physical concentration and phosphorus reduction method for a skarn-type high-phosphorus molybdenum ore. The physical concentration and phosphorus reduction method comprises the following steps of (1) crushing, namely crushing raw ores by using a crusher, sieving, and returning a +3mm-grade raw ore to crush until the particle size of the raw ore is up to the -3mm grade; (2) grinding the ores, namely adding the crushed -3mm-grade raw ore into raw ore grinding equipment to carry out closed-circuit ore grinding operation, meanwhile, adding 500-1000g/t of water glass and 250-800g/t of a phosphate mineral inhibitor into a grinding machine, and grinding the raw ore until the particle size is up to the -0.075mm grade and the phosphorus content is up to 55-75%; (3) carrying out roughing operation; (4) carrying out scavenging operation; (5) regrinding a roughed molybdenum concentrate, namely adding 100-280g/t of a sulfur inhibitor and 150-300g/t of a phosphate mineral inhibitor to regrind the