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1. (WO2018222524) IMPROVED COMPOSITIONS AND METHODS FOR REVERSE FROTH FLOTATION OF PHOSPHATE ORES

Pub. No.:    WO/2018/222524    International Application No.:    PCT/US2018/034606
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat May 26 01:59:59 CEST 2018
IPC: B03D 1/008
B03D 1/012
Applicants: ECOLAB USA INC.
Inventors: LIU, Jianjun
SRIRAM, Suresh R.
O'BRIEN, Kevin
HAY, Daniel N.T.
Title: IMPROVED COMPOSITIONS AND METHODS FOR REVERSE FROTH FLOTATION OF PHOSPHATE ORES
Abstract:
Improved sparge compositions for reverse froth flotation separation and uses thereof, and improved methods of reverse froth flotation are described. Described are sparge compositions comprising collectors and beneficiating agents, the collectors comprising sulfonated fatty acids and/or salts thereof, and the beneficiating agents comprising a hydroxy fatty acid composition. The sparge compositions are suitably used in the reverse froth flotation to separate phosphate beneficiary from ores comprising phosphate and dolomite, calcite, silicate, and/or other gangues. The disclosed compositions and methods exhibit improved separation of phosphate from such ores.