1
Westaway Michael Thomas, Walker Geoffrey: Catalyst ultrafiltration process. The British Petroleum Company, November 2, 1971: US3617553 (14 worldwide citation)

Transition metal complexes are separated from mixtures containing organic components of lower molecular weight by contacting the mixture with one side of a cellulosic membrane. The applied pressure is greater than the pressure on the opposite side of the membrane and the pressure differential is gre ...


2
Westaway Michael Thomas, Walker Geoffrey: Ultrafiltration separation process. British Petroleum Co, August 18, 1971: GB1243507-A (5 worldwide citation)

1,243,507. Separating metal complexes. BRITISH PETROLEUM CO. Ltd. 4 March, 1969 [13 March, 1968], No. 12173/68. Heading B1X. A coordination complex of a transition metal is separated from a solution of the complex in one or more organic components by placing the solution under pressure on one side o ...


3
Goldup Alan, Westaway Michael Thomas: Supported selective adsorbent:-production and use. British Petroleum Co, October 14, 1970: GB1208863-A

1,208,863. Separating C 8 and/or C 9 aromatics. BRITISH PETROLEUM CO. Ltd. 5 Dec., 1967 [16 Dec., 1966], No. 56354/66. Heading C5E. [Also in Division C3] One or more components of a mixture consisting of alkyl- and/or alkenyl-aromatic hydrocarbons having 8 or 9 carbon atoms per molecule are separate ...


4
Haresnape John Norman, Goldup Alan, Westaway Michael Thomas: Multi-stage process for the separation of hydrocarbons. British Petroleum Co, January 7, 1970: GB1177342-A

1,177,342. Separating hydrocarbons. BRITISH PETROLEUM CO. Ltd. 25 April, 1967 [27 April, 1966], No. 18386/66. Heading C5E. One or more components of a hydrocarbon mixture comprising C 8 and/or C 9 , alkyl and/or alkenyl, aromatic hydrocarbons are separated by a process comprising one or more fractio ...


5
Goldup Alan, Westaway Michael Thomas: Process for the separation of mixtures of hydrocarbons having different degrees of saturation. British Petroleum Co, January 7, 1970: GB1177343-A

1,177,343. Separating hydrocarbons. BRITISH PETROLEUM CO. Ltd. 25 April, 1967 [27 April, 1966], No. 18388/66. Heading C5E. One or more components of a hydrocarbon mixture comprising substantially all cyclic or substantially all non-cyclic components having different degrees of saturation is preferen ...


6
Goldup Alan, Westaway Michael Thomas: Hydrocarbon separation process. British Petroleum Co, March 11, 1970: GB1183524-A

1,183,524. Separating hydrocarbons. BRITISH PETROLEUM CO. Ltd. 25 April, 1967 [8 Sept., 1966], No. 40186/66. Heading C5E. Various hydrocarbon mixtures are separated by preferential complex formation in the vapour or liquid phase with a compound selected from tris - (o - phenylenedioxy) - cyclotripho ...


7
Goldup Alan, Morrison Anthony Barry, Westaway Michael Thomas: Hydrocarbon separation process. British Petroleum Co, February 21, 1968: GB1104314-A

One or more components of a hydrocarbon mixture comprising C8 and/or C9, alkyl and/or alkenyl, aromatic hydrocarbons are separated by contact in the liquid or vapour phase with a compound having the basic nuclear structure and which forms an inclusion complex more readily with one or more components ...