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Machine translation
1. (WO1980002386) FILTRATION OF A COAL LIQUID SLURRY USING AN ALKYLMETHACRYLATE COPOLYMER AND AN ALCOHOL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002386    International Application No.:    PCT/US1980/000395
Publication Date: 13.11.1980 International Filing Date: 08.04.1980
IPC:
B01D 37/02 (2006.01), B01D 37/03 (2006.01)
Applicants:
Inventors:
Priority Data:
36856 07.05.1979 US
Title (EN) FILTRATION OF A COAL LIQUID SLURRY USING AN ALKYLMETHACRYLATE COPOLYMER AND AN ALCOHOL
(FR) FILTRATION D"UNE BOUE LIQUIDE DE CHARBON EN UTILISANT UN COPOLYMERE DE METHACRYLATE D"ALKYLE ET UN ALCOOL
Abstract: front page image
(EN)The rate of filtration of a coal liquid slurry is increased by adding an alkylmethacrylate copolymer and an alcohol containing 2 to 10 carbon atoms to the slurry prior to filtration or by adding the alcohol to the slurry and washing a precoat cake of filter aid with an oil solution of an alkylmethacrylate copolymer prior to filtration. Although the alkylmethacrylate copolymer and the alcohol each provide a filter rate improving effect when used alone, a synergistic improvement in filtration rate is achieved by their combined use.
(FR)Le taux de filtration d"une boue liquide de charbon est augmente en ajoutant un copolymere de methacrylate d"alkyle et un alcool contenant 2 a 10 atomes de carbone a la boue avant la filtration ou en ajoutant l"alcool a la boue et en lavant un gateau precouche d"aide de filtration avec une solution huileuse d"un copolymere de methacrylate d"alkyle avant la filtration. Bien que le copolymere et l"alcool produisent chacun un effet d"augmentation du taux de filtration lorsqu"ils sont utilises seuls, une amelioration par synergie du taux de filtration est obtenue par leur utilisation combinee.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)