Joint magnetic flotation sorting method for complex magnetic pyrite copper-containing pyrite ore

• Main Authors: HE XIAOXUAN, LIANG DONGYUN, TANG YUHE, QIU XIANYANG, ZHANG HONGYING, QIU GUANZHOU, DONG TIANSONG, ZHU CHUANMING, ZHONG GUOJIAN, LI GUOJIN, YU LIANXIANG, LIU CONG, LIU DINGQIANG, WANG HAIDONG
• Format: Patent
• Language: Chinese; English
• Published: 17.08.2011
• 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 relates to a joint magnetic flotation sorting method for complex magnetic pyrite copper-containing pyrite ore, which comprises the following steps: primary ore grinding, prior floating copper, re-grinding for de-reagent, magnetic separation desulfurization iron from copper rough concentrates, copper selection from magnetic tailings and pyrite selection. A part of single square magnetic pyrites which have stronger magnetism and play a great role in copper selection interference is separated from the prior floating copper rough concentrates by the adoption of a magnetic method so as to reduce the interference to the copper selection process, and when the prior floating copper is roughly selected, iron pyrite is inhibited in low-alkali mediums by the adoption of lime and DB-5 combined inhibitors, so that the consumption of the lime is reduced, and the iron pyrite can be efficiently collected without the use of activators in the subsequent process flow of selecting pyrite from prior floating copper