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韩海生

Journal Publications

Novel catalysis mechanisms of benzohydroxamic acid adsorption by lead ions and changes in the surface of scheelite particles

Affiliation of Author(s):资生院

Journal:MINERALS ENGINEERING

Key Words:SELECTIVE FLOTATION; SODIUM OLEATE; CALCIUM MINERALS; COLLECTOR; TUNGSTEN; SOLUBILITY; PHOSPHATES; S

Abstract:To improve the floatability of tungsten minerals, lead ions (lead nitrate) were used to modify the surface properties of the minerals and benzohydroxamic acid (BHA) was used as a collector in the flotation system. Pb2+-BHA complexes are inevitably present in this process and the role of it is unclear. This investigation is going to describe a new approach and the mechanism of catalyzing BHA adsorption onto scheelite by lead ions. Chemical speciation, zeta potential, FTIR, and XPS studies were conducted to establish the important role of lead ions. Indeed, Pb2+-BHA complexes were shown to be th

Co-author:Tian Mengjie, Zhu Yangge, Anh V, Nguyen, Chen Kefeng, Li Xiaodong, Sun Wei, Hu Yuehua, Han haisheng

Indexed by:Unit Twenty Basic Research

Document Code:14

Discipline:矿业工程

Document Type:J

Volume:119

Page Number:11-22

ISSN No.:0892-6875

Translation or Not:no