Coarse grain flotation method for carbonic acid type phosphorite

• Main Authors: HE HAITAO, WANG MENGLAI, YANG WENQUAN, LI HOUCAO, ZHANG HUA, LI NING, DU LINGPAN, LI HONGYAN, XU YICHUN, CAI ZHONGJUN, WANG YIFAN, YANG ERXUN, LYU LAN
• Format: Patent
• Language: Chinese; English
• Published: 20.10.2023
• Subjects: DIFFERENTIAL SEDIMENTATION; FLOTATION; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS 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 carbonate type phosphorite coarse grain flotation method, and relates to the technical field of phosphorite flotation. The ore with the particle size being-500 mm is crushed to be-1 mm; adding a regulator for size mixing, then adding a coarse-fraction collecting agent for size mixing, then carrying out air flotation for 3-5 minutes to obtain roughed phosphate concentrate and tailings, and directly discarding the tailings; concentrating the rough phosphate concentrate, grinding the rough phosphate concentrate to-0.425 mm, carrying out re-separation operation, adding a regulator and a coarse-grained collecting agent, carrying out flotation for 1-3 minutes, and carrying out scavenging operation and tailing discarding on the concentrated phosphate concentrate, tailings and the tailings or directly discarding the tailings; and carrying out 0.23 mm grading treatment on the concentrated phosphate concentrate, returning the concentrate with the particle size larger than 0.23 mm to be subject