期刊
MINERALS ENGINEERING
卷 127, 期 -, 页码 329-333出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mineng.2018.03.047
关键词
Scheelite; Calcite; Carboxyl methyl cellulose; Calciumions; Flotation
资金
- Basic Research Plan of Shanxi Natural Science [2017JQ5090]
- Xi'an University of Science and Technology Foundation for Fostering [201616]
- Natural Science Foundation of China [51404194]
The effect of carboxyl methyl cellulose (CMC) on the flotation separation of scheelite from calcite using sodium oleate as collector was studied in this work. The results of flotation tests indicated that CMC could selectively depress the flotation of calcite. However, the addition of calcite strongly strengthened the depressing effect of CMC on scheelite flotation. The addition of sodium carbonate could eliminate the adverse impact of calcite on the performance of CMC in scheelite flotation, and a concentrate with both high grade of WO3 and scheelite recovery could be achieved under CMC in the presence of sodium carbonate. Zeta potential results indicated that CMC adsorbed more strongly on calcite surface than that on scheelite surface, and the addition of CMC prevented the adsorption of the sodium oleate on the calcite surface.
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