Arsenic and sulfur separation ore dressing technology of high-arsenic sulfur concentrates containing pyrrhotite

• Main Authors: YUAN JINGZHONG, TANG YUHE, QIU XIANYANG, HU ZHEN, LI HANWEN, YE XIAOLU, YANG QUANZHI, CHEN HONGBING, LI PEILUN, SONG BAOXU, CHEN MINGBO, WANG CHENGXING, RAN JINCHENG, FU HUA, HE FENGWEN, WANG TAI, ZOU JIANJIAN, YAO YANQING
• Format: Patent
• Language: Chinese; English
• Published: 13.04.2018
• 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 an arsenic and sulfur separation ore dressing technology of complex sulfur concentrates. First, the complex high-arsenic sulfur concentrates are reground, and previous agent removing is carried out on the reground mineral materials to remove residual agents on the surfaces of the minerals. Then, flotation is carried out by adopting an arsenic inhibitor so as to obtain sulfur concentrates 1 mainly containing pyrite, and low-intensity magnetic separation is carried out on tailings to obtain pyrrhotite with a strong magnetic property. Finally, pyrrhotite with a weak magnetic property is separated by adopting high-intensity magnetic separation, the sulfur concentrates 1, the pyrrhotite with the strong magnetic property and the pyrrhotite with the weak magnetic propertyare combined to obtain sulfur concentrates 2 mainly containing the pyrrhotite, and at the same time, an arsenic concentrate product is obtained. The arsenic and sulfur separation ore dressing technology has the advantages tha