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本文研究了油酸钠在微细粒锡石、石英表面的吸附状况及在有油酸钠存在的条件下，锡石、石英以及锡石和石英粒子之间的互凝。通过理论计算用扩展的DLVO理论进行了验证，并对DLVO和扩展的DLVO理论在浮选剂存在条件下矿粒行为的预测进行了比较。
In this paper, the adsorption of sodium oleate on the surface of fine-grained cassiterite and quartz and the mutual coagulation of cassiterite, quartz and cassiterite and quartz particles in the presence of sodium oleate were studied. It is verified by the extended DLVO theory through theoretical calculations and the prediction of DLVO and extended DLVO theory in the presence of flotation agent is compared.