某高硫铜锌多金属矿综合回收试验研究

摘要

A complex high⁃sulphur Cu⁃Zn polymetallic ore is rich in a variety of valuable metallic elements, among which, copper and zinc minerals are mainly finely⁃disseminated, while pyrite is mainly of coarse grain, with a complicated dissemination among minerals. A technique consisting of coarse grinding, Cu⁃Zn asynchronous bulk flotation for tailings discarding, regrinding of rough concentrate and Cu⁃Zn separation was adopted, resulting in the copper concentrate graded 22.56% Cu at a recovery of 87.55%, and zinc concentrate graded 42.86% Zn at a recovery of 75. 64%. Shaking table was introduced to obtain high⁃grade sulfur concentrate from tailings by the process of coarse grinding⁃bulk flotation.%某复杂高硫铜锌多金属矿富含多种有价金属元素，铜、锌矿物以细粒嵌布为主，黄铁矿主要以粗粒形态存在，矿物间嵌布关系复杂。采用粗磨铜锌异步混选抛尾⁃粗精矿再磨铜锌分离选矿工艺，获得了铜精矿品位22．56％、回收率87．55％，锌精矿品位42．86％、回收率75．64％的指标，粗磨混浮尾矿用摇床重选可选出合格硫精矿。