Methods of purifying hydrogen fluoride

Details Methods of purifying hydrogen fluoride Methods of purifying hydrogen fluoride

2003-07-15

2008-05-13

Nguyen, Ngoc-Yen (Department: 1793)

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

C423S242100, C423S243010, C423S210000, C423S483000, C570S177000

Reexamination Certificate

active

07371363

ABSTRACT:
Provided are methods of producing anhydrous hydrogen fluoride comprising: providing a mixture comprising hydrogen fluoride and at least one halogenated hydrocarbon; and extracting hydrogen fluoride from the mixture by contacting the mixture with a solution of less than about 93 wt. % sulfuric acid solution in water.

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