Heavy petroleum oil plasticized, tar bonded taphole mix

Details Heavy petroleum oil plasticized, tar bonded taphole mix Heavy petroleum oil plasticized, tar bonded taphole mix

1981-12-14

1983-08-23

Rosenberg, P. D.

Metallurgical apparatus

Process

Plugging or tapping

266270, 266271, C21B 712

Patent

active

043999824

ABSTRACT:
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.degree. F. and above and a boiling range between 700.degree. F. and 1000.degree. F. Methods of making and using such plasticized tar bonded blast furnace taphole mixes are also disclosed.

REFERENCES:
patent: 4010936 (1977-03-01), Takashima

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