Method for prevention of corrosion by naphthenic acids in...

Details Method for prevention of corrosion by naphthenic acids in... Method for prevention of corrosion by naphthenic acids in...

2004-06-25

2009-02-17

Griffin, Walter D (Department: 1797)

Mineral oils: processes and products

Refining

Gum or gum former removal

C208S047000, C252S387000, C252S388000, C252S389100, C252S390000, C252S391000, C252S395000, C422S007000

Reexamination Certificate

active

07491318

ABSTRACT:
The invention relates to a method for prevention of corrosion by naphthenic acids in a refinery comprising the use of a compound of the formula HS—B—COOR, where B is a saturated bivalent 1-18 C hydrocarbon and R is H, alkaline or alkaline earth metal, ammonium, straight or branched alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl with 1-18 C atoms.

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patent: 5182013 (1993-01-01), Petersen et al.
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patent: 5976416 (1999-11-01), Brezinski
patent: 6492296 (2002-12-01), Eijsbouts
patent: 0 742 277 (1996-04-01), None
patent: 2 774 398 (1998-02-01), None
patent: WO 97/45503 (1997-03-01), None
Turnbull, Corrosion, vol. 54, No. 11, p. 922, 1998.

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