阅读说明：本技术 多元醇用于改进铁矿石的反向泡沫浮选工艺的用途 (Use of polyols for improving the reverse froth flotation process of iron ores ) 是由 M·克鲁尔 W·C·达西瓦 V·罗德斯 L·毕卡尔霍 于 2019-06-05 设计创作，主要内容包括：本发明涉及含两个或三个羟基的水可混容性多元醇用于改进包含至少一种式(I)的烷基醚胺和/或式(II)的烷基醚二胺的用于反向铁矿石浮选的捕集剂组合物的捕集剂性能的用途,R~1-(O-A)-NH_2(I)R~2-(O-A)-NH-R~3-NH_2(II)其中：R~1是含6-24个碳原子的烃基,R~2是含6-24个碳原子的烃基,R~3是含2-4个碳原子的脂族烃基A是含2-6个碳原子的亚烷基。(The invention relates to the use of water-miscible polyols containing two or three hydroxyl groups for improving the collector properties of collector compositions for reverse iron ore flotation comprising at least one alkyl ether amine of formula (I) and/or alkyl ether diamine of formula (II), R 1 ‑(O‑A)‑NH 2 (I)R 2 ‑(O‑A)‑NH‑R 3 ‑NH 2 (II) wherein: r 1 Is a hydrocarbon radical having 6 to 24 carbon atoms, R 2 Is a hydrocarbon radical having 6 to 24 carbon atoms, R 3 Is an aliphatic hydrocarbon radical A having 2 to 4 carbon atoms and is a radical having 2 to 6 carbon atomsAlkylene groups of carbon atoms.)