METHOD OF PRODUCING COKE PLATES FOR FLUORINE ELECTROLYZERS Russian patent published in 1998 - IPC

FIELD: technology of production of calcined coke plates, in particular, methods of producing plates for manufacture of anodes of fluorine medium-temperature electrolyzers. SUBSTANCE: method includes preparation of mixture from pitch or needle coke and coal-tar pitch, formation of intermediate product, double calcination of intermediate products with intermediate impregnation with pitch. Repeated calcination after impregnation with coal-tar pitch or petroleum impregnation pitch is carried out at temperature not more 1100 C. Intermediate product calcination may be carried out in induction furnace. EFFECT: higher economic efficiency. 2 cl, 2 tbl