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Gavin Derek Gabriel, Richards David Gareth: Synthesis gas conversion process.. Coal Industry Patents, January 20, 1988: EP0253540-A1 (19 worldwide citation)

A mixed alcohol product containing little or no methanol can be produced from synthesis gas by a process incorporating the synthesis of alcohols over a catalyst, the fractionation of the product to yield a desired mixed alcohol product and a fraction containing methanol, and recycling the methanol f ...


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Gavin Derek Gabriel, Jones Michael Andrew: Process for hydrotreating a liquid coal-derived material.. Coal Industry Patents, February 25, 1981: EP0024104-A1 (19 worldwide citation)

A process for hydrotreating coal-derived liquids in which no coking section is required, comprising passing the liquid over a catalyst which is molybdenum or tungsten disulphide on an active carbon support in the presence of hydrogen, at elevated temperature and pressure. The product liquor is subst ...


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Method of propulsion of vehicles. Coal Industry Patents, December 31, 1976: GB1460106-A (19 worldwide citation)

1460106 Rope railways COAL INDUSTRY (PATENTS) Ltd 22 May 1975 [22 May 1974] 22930/74 Heading B7L A vehicle e.g. a mine car 1, 2, 3, comprises a gripper device 6 pivoted on the car chassis 2 and manually operable by a lever 16, pivoted at 17 to the car container 1, and a rod 18 linked to the gripper ...


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French Albert Graham, Hamilton Robert John, Aylward Ralph: Dust suppression means for use with mining machines. Coal Industry Patents, April 24, 1968: GB1110763-A (17 worldwide citation)

1,110,763. Mineral mining machines; dust suppression. COAL INDUSTRY (PATENTS) Ltd. 29 Jan., 1965 [29 Oct., 1963], No. 42654/ 63. Heading E1F. Water for dust suppression is supplied only to those cutter picks or the like on a rotary, tool-carrying mineral mining machine e.g. a shearer drum 1, Fig. 1, ...


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Quick setting cements. Coal Industry Patents, May 21, 1980: GB2033367-A (17 worldwide citation)

A quick setting cement comprises Portland Cement and by weight of the Portland cement 10 to 70% of a mixture of calcium aluminate and calcium sulphate, 0.025 to 15% of at least one inorganic salt and 0.02% to 3% of one or more of a carboxylic acid, hydroxycarboxylic acid or a salt of either of these ...


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Randell Arthur Allan: Method of heat treating a material.. Coal Industry Patents, May 28, 1980: EP0011391-A1 (16 worldwide citation)

A method of heat treating a slurry material which has combustible and incombustible components includes burning the material in a fluidised bed, to devolatilise the water content and to produce a material which cannot be reslimed. Fine material elutriated from the bed is separated from the entrainin ...


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Compositions for stowing cavities. Coal Industry Patents, April 8, 1981: GB2058037-A (16 worldwide citation)

A quick setting cementitious composition with good early strength characteristics contains, by volume, 1 - 30% of a cement mixture including Portland Cement, and based on the weight of the Portland Cement 10 to 75% of a mixture of calcium aluminate and calcium sulphate, 0.5 - 15% of at least one ino ...


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Addison George T: Cutters for mineral-mining machines. Coal Industry Patents, July 6, 1971: US3591235 (14 worldwide citation)

A cutterhead for a mineral-mining machine, particularly a shearer-loader, comprises a rotary cutter equipped with fixed cutter tools distributed around the head. Adjacent to the periphery of the head but spaced from one another are mounted a source and a detector of electromagnetic radiation, the de ...


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Treatment of n methyl pyrrolidone. Coal Industry Patents, June 16, 1982: GB2088850-A (13 worldwide citation)

N-methyl pyrrolidone (NMP) used in selective extraction of aromatics from mixtures with paraffins contains acidic, and/or chloride contaminants which can corrode plant. These contaminants can be removed from non-aqueous streams using a basic ion-exchange resin, and can be kept at a low level by cont ...