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大厂１００ 号特富矿属于锡石－多金属硫化矿．根据矿石性质，将磨矿粒度控制在０．２５ｍ ｍ 以下，原则流程为磁－浮－重，先用磁选选出磁黄铁矿，消除对硫化矿浮选的影响．浮选部分采用优先浮铅锑－混浮－锌硫分离，用重选摇床从浮选尾矿中回收锡．本工艺经长坡选厂应用表明，工艺合理，生产指标均达到设计要求，锡精矿品位４７．７９％ ，回收率７１．７７％ ；铅锑精矿含铅３１．７８％ ，回收率８６．７８％ ；锌精矿品位为４７．７９％ ，回收率８２．１０％ ．
Dachang 100 special rich ore cassiterite - polymetallic sulfide ore. According to the nature of the ore, the grinding particle size is controlled below 0.25m m. The principle flow is magnetic-float-heavy. The pyrrhotite is first selected by magnetic separation to eliminate the influence on the flotation of sulphide ore. Flotation part of the priority float antimony - mixed float - zinc and sulfur separation, with a re-election shaker recovered from the flotation tailings tin. The application of this process by Changpo Slope Plant shows that the process is reasonable and the production indexes meet the design requirements. The grade of tin concentrate is 47.79% with the recovery rate of 71.77%. The lead and antimony concentrate contains 31.78% lead and the recovery rate is 86% .78%; zinc concentrate grade is 47.79%, the recovery rate of 82.10%.