At present,DaChang resource is poverty gradually incr easingly as the continuance of large scale production,the natural resource will be exhausted before long.

• 目前华锡集团正在处理巴里选厂老尾矿，但回收指标较差，锡金属回收率仅为20%25左右，而硫、砷没有加以回收，又丢失于尾矿，这样既造成资源浪费，同时对环境又构成新的污染。