重选法不适于分选微粒嵌布的锡石,而浮选此种矿物仍处试验室试验阶段。通过大量研究得出结论:用普遍的选矿法和捕收剂效果不大。探索新药剂取得了下述结果。虽然只有在根据药剂的合成及其在浮选中的应用进行半工业试验后,才能谈到在工业上使用的问题,然 The re-election method is not suitable for sorting fine-grained cassiterite, while flotation of such minerals is still in the laboratory test phase. Through a large number of studies concluded that: with the general beneficiation method and collector is not effective. The following new drugs were explored. Although semi-industrial tests based on the synthesis of pharmaceutical agents and their use in flotation are not mentioned, the question of their industrial use