Title: Corrosion inhibition with oil soluble diamides

Abstract: Hydrocarbon liquids having a pH greater than 7 are inhibited against corrosion by the addition thereto of a corrosion inhibiting amount of a diamide or mixture of diamides of 1,3-dipropylene triamine and one or more organic monocarboxylic acids containing a sufficient number of carbon atoms to render said diamide or mixture of diamides oil soluble and water insoluble.

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Inventors: Howle, Charles L. (Houston, TX, US)

Application Number: 553094
Filing Date: 1975-02-26
Publication_date: 1976-12-14
Assignee: Nalco Chemical Company (Oak Brook, IL)
Primary Class(es): 252/392 106/14.31, 208/47, 422/7, 507/244, 507/939, 508/554
Other Classes:
US Patent Ref:

2598213	May, 1952	Blair	252/8.
3378581	Apr, 1968	Hummel	252/392.
3458453	Jul, 1969	Kautsky	252/392.
3526661	Sep, 1970	Hu	252/392.
3765850	Oct, 1973	Badin et al.	252/392.

Other Refs:
Primary Examiner: Padgett, Benjamin R.
Assistant Examiner: Gluck, Irwin
Attorney: Johnston, Keil, Thompson & Shurtleff