Method and apparatus for impregnating porous electrodes or the l

Details Method and apparatus for impregnating porous electrodes or the l Method and apparatus for impregnating porous electrodes or the l

1983-11-30

1985-05-14

Lieberman, Paul

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

With carbonizing, then adding carbonizable material and...

264 297, 264 57, 264102, 264136, C01B 3100

Patent

active

045171378

ABSTRACT:
Carbon electrodes are impregnated with pitch during transport in mobile vessels which first travel to a heating station where the electrodes are heated in several stages by gases which are hotter from stage to stage. The vessels next travels to a station where the sealed vessels are connected with a suction pump to evacuate the fluid from their interiors and from the pores of the electrodes therein and where the vessels are substantially filled with pitch which is caused to penetrate into the empty pores. The vessels then travel to a station where the contents of the vessels are pressurized to ensure complete permeation of electrodes with pitch. The vessels subsequently travel an optional station where the electrodes in the vessels are baked to convert the pitch into coke, and to one or more cooling stations where the electrodes are heated by air, water and/or nitrogen. Fumes which develop during heating, evacuation of fluid from the pores, baking and cooling are filtered to avoid contamination of the surrounding area.

REFERENCES:
patent: 2087724 (1937-07-01), Sanders
patent: 2883708 (1959-04-01), Sem
patent: 4087011 (1978-05-01), Taniguchi
patent: 4098428 (1978-07-01), Taniguchi
patent: 4100314 (1978-07-01), Wallouch
patent: 4342718 (1982-08-01), Caratsch

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