Hydrogen fluoride recovery process
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United States of America Patent
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Dec 9, 2003
Grant Date -
Nov 14, 2002
app pub date -
Jun 5, 2001
filing date -
Oct 10, 1995
priority date (Note) -
Expired
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Abstract
A process for separating and recovering hydrogen fluoride from a mixture with an organic compound especially a fluorine-containing compound by extraction with a solution of an alkali metal fluoride in hydrogen fluoride, phase separation and recovery. A process for producing a fluorine-containing organic compound by fluorinating a starting material with hydrogen fluoride and similarly recovering hydrogen fluoride from the product stream. The solution may be anhydrous or aqueous.
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