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1. (WO2018027260) METHOD OF PREPARING A WATER IN OIL EMULSION

Pub. No.:    WO/2018/027260    International Application No.:    PCT/AU2017/050824
Publication Date: Fri Feb 16 00:59:59 CET 2018 International Filing Date: Sat Aug 05 01:59:59 CEST 2017
IPC: C10L 1/32
B01F 3/08
Applicants: THE UNIVERSITY OF NEWCASTLE
Inventors: GALVIN, Kevin Patrick
VAN NETTEN, Kim
Title: METHOD OF PREPARING A WATER IN OIL EMULSION
Abstract:
A method of preparing a water in oil emulsion comprises forming a mixture of oil and emulsifying agent, progressively adding an aqueous salt solution to the mixture and dispersing the aqueous salt solution into the mixture. A concentrated water in oil emulsion is formed with drops of the aqueous salt solution (1) packed inside the oil solution phase (2). The emulsion is added to water and then mixed so that the emulsion absorbs the water. The salt concentration of the emulsion relative to the salt concentration of the water is controlled. Methods of agglomerating fine hydrophobic particles in a slurry using the water in oil emulsion are provided, where the emulsion is added to the slurry and then mixed so that the emulsion absorbs the water in the slurry. The salt concentration of the emulsion relative to the salt concentration of the slurry is controlled.