Assertion: hydrogen fluoride | /r/HasProperty | recovered by extracting
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Source sentences:
text: According to one specific and preferred embodiment of this invention, hydrogen fluoride is recovered from a homogeneous mixture of hydrogen fluoride and hydrocarbons by extracting, batchwise or countercurrently, the mixture in the gas phase with a liquid organic nitrogen'base, preferably quinoline, at atmospheric or slightly higher temperatures, removing the substantially acid-free hydrocarbonsl and heating the resulting residue at an elevated temperature to reliberate A substantially pure hydrogen uoride from the quinoline or other nitrogen base.