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砂錫矿在选矿过程中得到錫中矿产品。中矿的成分主要是褐铁矿,并含有錫、鉛、鋅等有价元素。由于錫石在褐鉄矿中的致密嵌布,进行选矿分离十分困难。其它有价元素大部分寄生于褐鉄矿中,不呈独立矿物存在,选矿也难于分离。在目前的选矿作业中,中矿經过很复杂的工艺进行选别后,錫的回收率很低;同时,中矿中的铁、砷等杂质被带入到錫精矿中,也降低了精矿的质量。这样就使精矿冶金处理过程中的返回品数量增大,影响錫的回收率及质量。因
Sand tin ore tin beneficiation process in the mineral products. The composition of the ore is mainly limonite, and contains tin, lead, zinc and other valuable elements. Due to the tight cambium of cassiterite in brown ore, it is very difficult to carry out beneficiation. Most of the other valuable elements parasitized in brown ore, not as a separate mineral, dressing is difficult to separate. In the current beneficiation operations, the recovery rate of tin is very low after the medium ore is sorted by a very complicated process. At the same time, impurities such as iron and arsenic in the ore are brought into the tin concentrate and also reduced Concentrate quality. This increases the number of returned products in the process of concentrates and metallurgy, affecting tin recovery and quality. because