Process for inhibiting oxidation and polymerization of furfural

Details Process for inhibiting oxidation and polymerization of furfural Process for inhibiting oxidation and polymerization of furfural

1994-03-29

1995-09-26

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

208 18, 208291, C07D30748

Patent

active

054535190

ABSTRACT:
Dialkylphenylenediamines are used to inhibit oxidation and polymerization of furfural or furfural derivatives. The preferred use of the inhibitor is in the solvent refining of lubricating oils using furfural to extract constituents from the lubricating oils. Prior to and/or during the treatment the acidity of the furfural is adjusted to a level below 0.20 mg KOH/gram furfural.

REFERENCES:
patent: 5332842 (1994-07-01), Dickakian

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