Carbon ramming mix

Abstract

A cold ramming mix suitable for ramming of alumina reduction cell cathode seams at ambient temperature comprising: (A) a solid portion comprising: (I) from about 30 to about 60 weight percent of coarse calcined anthracite; (II) from about 50 to about 30 weight percent of anthracite dust; and (III) from about 1 to about 10 weight percent graphite dust; (B) from about 5 to about 15 weight percent based on the weight of the solid portion of a binder pitch; and (C) from about 5 to about 10 weight percent based on the weight of the solid portion, of a heavy petroleum distillate oil having a 95% distillation range of between about 370.degree. and 540.degree. C. A method for producing such a mix comprising blending A and B to provide a homogeneous mixture and subsequently blending in C under conditions which assure that the pitch binder is not dissolved in the oil of C is also described.

Dependencies are inferred from the claim text.