VERFAHREN ZUR FLOTATION OXIDISCHER ZINNERZE

摘要

In a method for the flotation of oxidic tin ores, fine-ground tin ore is converted into a suspension which is floated in the presence of a collecting and/or controlling and/or foaming agent, wherein the collecting agent is either (7) a biolipid extract and 2- phenylethylene-phosphonic acid or (2) a biolipid extract, a sodium soap of a biolipid extract and 2-phenylethylene- phosphonic acid or (3) biolipid extract fractions enriched with phosphatide or free fatty acid and 2-phenylethylene- phosphonic acid.