During the period of tackling key problems in Chehe mineral processing plant(1 986～ 1 990 ) ,Guangzhou Research Institute of Non- Ferrous Metals applied new equipment and new reagents such as cone separator,table- flotation technique,salicylic hy- droxamic acid and P86,adding lime into the grinder before flotation of separating Pb from Zn, etc.
在“七五”生产攻关期间 ,广州有色金属研究院经试验研究 ,将圆锥选矿机 ,新台浮工艺 ,水杨氧肟酸和 P86药剂 ,铅锌分离浮选前磨矿机中加石灰等新设备、新工艺和新药剂应用在生产上 ,完善了选矿工艺 ,提高了生产指标 。