1155448-A is referenced by 3 patents.

1,155,448. Carbon electrodes. ESSO RESEARCH & ENG. CO. 9 Oct., 1967, No. 46008/67. Heading C1A. [Also in Division C5] A pitch binder for carbon electrodes is made by a process (see Division C5) which comprises (a) heating, under partial reflux conditions, a petroleum hydrocarbon in the presence of activated carbon to form an overhead fraction and a bottoms fraction; (b) separating said carbon from the bottoms fraction; (c) subjecting said bottoms fraction to a vacuum distillation to obtain the pitch product as the residuum. 31 wt. % of a mixture of the above pitch with 5% of carbon black is mixed at 300-325 F. with ground delayed petroleum coke that has been calcined at 2000 F. and of which 100% passes a 4-Tyler mesh screen and 30 wt. per cent passes a 200-Tyler mesh screen.; The resulting mixture is moulded in graphite molds and baked in an inert atmosphere at up to 1000 C. for 23-5 hours under applied pressure to simulate the weight of the green mix above a Soderberg electrode in an actual furnace. The a/m active carbon prepared by the destructive distillation of wood, lignite &c. is activated by heating e.g. to 800-900 C. with steam or C0 2 and has a surface area of 3600 ft2/gm.

Title
A process for producing a petroleum based pitch
Application Number
GB19670046008 19671009
Publication Number
1155448 (A)
Application Date
October 9, 1967
Publication Date
June 18, 1969
Inventor
King Laurence Frederick
Assignee
Exxon Research Engineering Co
US
IPC
C10C 03/00
C10C 03/00
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