Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 18    No. 2    April 2008

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Double reverse flotation process of collophanite and regulating froth action
GE Ying-yong(葛英勇), GAN Shun-peng(甘顺鹏), ZENG Xiao-bo(曾小波), YU Yong-fu(余永富)

School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China

Abstract:A new double reverse flotation process was used to beneficiate the Yichang region collophanite of Hubei Province, China. Its final concentrate yield is 67.37%, P2O5 grade is 32.17%, P2O5 recovery is 87.80%, and the main impurities MgO, Fe2O3 and Al2O3 are 0.95%, 1.04%, 1.36%, respectively. The difficult problem was successfully solved that plentiful froths are bought by the cationic collector reverse flotation in collophanite beneficiation by adding inorganic froth regulator CA to the pulp. The defrothing mechanism was studied through mensurating surface tension and Zeta potential of the pulp after adding CA. It is found that the changing of surface tension and hoisting of Zeta potential may be the main reasons that froths become friable and break up.


Key words: collophanite ore; reverse flotation; defrothing

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

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