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Class Information
Number: 585/842
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc. > Hf and another fluoride
Description: Subject matter in which the agent contains hydrogen fluoride and another compound containing fluorine.

Patents under this class:

Patent Number Title Of Patent Date Issued
6303843 Method for removing sulfolane present in hydrocarbon Oct. 16, 2001
6114593 Method for reducing organic fluoride levels in hydrocarbons Sep. 5, 2000
5744685 Unsaturated hydrocarbon separation and recovery process Apr. 28, 1998
5284993 Alkylation catalyst regeneration Feb. 8, 1994
4417091 Process for removing fluorine from olefin oligomers Nov. 22, 1983
4316998 Treatment of sulfur-containing HF-alkylation feed, hydrocarbon product, propane and acid-soluble oils derived from the alkylation Feb. 23, 1982
3962366 Isomerization and separation of cymenes from mixtures containing same Jun. 8, 1976

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