Process for acidizing hot siliceous material

Details Process for acidizing hot siliceous material Process for acidizing hot siliceous material

1984-04-18

1985-10-22

Guynn, Herbert B.

Compositions

Leather or fur treating

166300, 166307, E21B 4327

Patent

active

045487324

ABSTRACT:
The dissolving of siliceous material in an environment containing corrodable metal and having a temperature exceeding about 300.degree. F. is improved by using an aqueous solution containing an amount of ammonium fluoride equivalent to that in a 2-3 molar solution of hydrogen fluoride and enough weak acid and weak acid salt to provide a pH of near to but less than 7.

REFERENCES:
patent: 3889753 (1975-06-01), Richardson
patent: 4090563 (1978-05-01), Lybarger et al.
patent: 4203492 (1980-05-01), Watanabe

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