Heavy petroleum oil plasticized, tar bonded taphole mix

摘要

A blast furnace taphole plugging composition comprising a coal tar binder, a refractory filler and a very heavy aromatic petroleum oil which fails to polymerize at the high heating rates experienced during normal application of the taphole mix to the taphole. Preferred aromatic petroleum oils useful in the present invention have a minimum boiling temperature of 700 DEG F. and above and a boiling range between 700 DEG F. and 1000 DEG F. Methods of making and using such plasticized tar bonded blast furnace taphole mixes are also disclosed.