Mineral oils: processes and products – Refining – Water removal
Patent
1995-07-28
1997-01-28
Caldarola, Glenn A.
Mineral oils: processes and products
Refining
Water removal
208187, 208370, 210734, 44620, 44621, C10G 3304, B01D 2101, C10L 500
Patent
active
055974759
ABSTRACT:
A method for dewatering mineral slurries employing a copolymer of diallyldimethlylammonium halide and a vinyl alkoxysilane, which is preferably a copolymer of diallyldimethylammonium chloride and vinyltrimethoxysilane as a coagulant is disclosed. The method for dewatering mineral slurries containing water comprising the steps of: feeding said mineral slurry into a thickener, treating said mineral slurry with an effective amount of a coagulant which comprises a copolymer of halide and a vinyl alkoxysilane; allowing the water to separate from the mineral slurry, withdrawing the water from said thickener and discharging said mineral products from said thickener. Mineral slurries which can be effectively treated are copper and taconite. The above-mentioned method may also include treatment with a flocculant in conjunction with the coagulant.
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Kerr E. Michael
Ramesh Manian
Caldarola Glenn A.
Charlier Patricia A.
Drake James J.
Hailey Patricia L.
Miller Robert A.
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