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在砂锡矿中,有一部分矿体伴生着大量的铅(锡品位0.2～0.4％,铅品位2～4％)经过重选产出铅品位30～35％、锡品位10～18％的铅锡混合精矿,再经浮选分离获得铅品位40％以上的铅精矿和锡品位30％以上的锡精矿分别送冶炼。铅锡分离方法目前有浮铅抑锡的硫化浮选法和浮锡抑铅的甲苯肿酸法。浮铅抑锡具有药剂来源容易,价格便宜的优点,但锡产品品位不高,还需用摇床再次处理,而且尚有一部分中矿不好处理。
In the sand tin mine, some ore bodies are associated with a large amount of lead (0.2-0.4% of tin grade and 2-4% of lead grade) after being re-selected to produce 30-35% of lead grade and 10-18% of lead grade of tin Tin mixed concentrate, and then by flotation separation of lead grade more than 40% of lead concentrate and tin grade more than 30% tin concentrate were sent to smelting. Lead-tin separation method Float tin tin sulfide floating flotation method and tin-lead tin method of tincture of toluene. Floating tin tin has the advantage of easy source of pharmaceuticals, cheap, but the tin product quality is not high, but also need to handle again with a shaker, but there are still part of the mine is not good to deal with.