以往我厂在处理原生铜锌硫矿石时,在优先选铜过程中,一直采用氰化钠和硫酸锌抑制闪锌矿和黄铁矿,分选铜的工艺。实践证明这种工艺有不少大家熟知的缺点,亟待克服。在无产阶级文化大革命中,在毛主席无产阶级革命路线指引下,全厂革命职工以阶级斗争为纲,深入批判刘少奇、林彪的反革命修正主义路线,进一步贯彻执行“鞍钢宪 In the past I plant in the treatment of primary copper zinc sulfide ore, copper in the preferred process, has been using sodium cyanide and zinc sulfate inhibition of sphalerite and pyrite, copper separation process. Practice has proved that this process has many well-known shortcomings, urgent need to overcome. In the great proletarian cultural revolution, guided by Chairman Mao’s proletarian revolutionary line, the revolutionary workers of the entire factory took the class struggle as the key link, thoroughly criticized the counterrevolutionary revisionist line of Liu Shao-chi and Lin Biao, and further implemented the "