C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 7/20 (2006.01) C07C 29/94 (2006.01) C07C 41/46 (2006.01) C07C 45/90 (2006.01) C07C 253/32 (2006.01) C07C 255/03 (2006.01) C07D 207/267 (2006.01) C07D 307/48 (2006.01) C07D 333/48 (2006.01) C09K 15/18 (2006.01)
Patent
CA 2047300
A-18161/A/CGC 1496 PREVENTION OF OXIDATION IN PETROCHEMICAL EXTRACTION SOLVENTS Abstract of the Disclosure A wide variety of hindered amine compounds are effective as antioxidant stabilizers to prevent the oxidation of liquid hydrocarbons and of oxygenated compounds, such as sulfolane or tetraethylene glycol, used as extraction solvents in the petroleum industry.
Gatechair Leslie R.
Huyn James L.
Klemchuk Peter P.
Ag Ciba-Geigy
Fetherstonhaugh & Co.
Gatechair Leslie R.
Huyn James L.
Klemchuk Peter P.
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