Studies of collectors. Part 12. The flotation of gallium ion with polyphenol-type surfactants
作者:Yoshifumi Koide、Katsuhiro Sakurai、Hideto Shosenji、Kimiho Yamada
DOI:10.1039/dt9900000641
日期:——
Polyphenol-type surfactants bearing 1,2-benzenediol or 1,2,3-trihydroxybenzene units were prepared and applied as flotation collectors for Ga3+. The surfactants exhibited a lowering of surface tension at pH 11 (32–47 dyn cm–1. Gallium(III) was highly floated (80–90%) at pH 3–8 with equimolar Cn– 1H2n– 1C(O)C6H3(OH)2(n= 8 or 12) or C7H15C(O)C6H2(OH)3, but not as highly (60%) with C12H25S[CH2CHC(O)C6H3(OH)2]4
制备了带有1,2-苯二醇或1,2,3-三羟基苯单元的多酚型表面活性剂,并将其用作Ga 3+的浮选捕收剂。表面活性剂在pH 11(32–47 dyn cm –1)时表面张力降低。在等摩尔C n – 1 H 2 n – 1 C下,镓(III)在pH 3–8时高度漂浮(80–90%)。(O)C 6 H 3(OH)2(n = 8或12)或C 7 H 15 C(O)C 6 H 2(OH)3,但与C 12 H 25 S相比不那么高(60%)[CH2 CHC(O)C 6 H ^ 3(OH) 2 ] 4.8(CH 2 CHCO 2 2H) 9.5 H.镓的可浮3+在1mol分米-3的NaOH分别为86-99%,在那些3摩尔分米-通过使用六倍摩尔过量的C n – 1 H 2 n – 1 C(O)C 6 H 3(OH), 3 NaOH的含量为63–67%,在5 mol dm –3 NaOH中的含量为26–39%。)