The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 5567213 B1

Date of Patent:

Oct. 22, 1996

Filed:

Apr. 25, 1996

Use of olefinic imines to scavenge sulfur species

Applicant:

Inventors:

David R Gentry, St. Louis, MO (US);

Gerald T Pancio, St. Louis, MO (US);

Jerry J Weers, Ballwin, MO (US);

Assignee:

Petrolite Corporation, St. Louis, MO (US);

Attorney:

Solomon; Kenneth

Primary Examiner:

Ellen M McAvoy

Int. Cl.

CPC ...

C10L / ;

U.S. Cl.

CPC ...

44420 ; 44421 ;

Abstract

A method for scavenging sulfur species from a petroleum-derived medium is disclosed. The method comprises contacting the medium with sulfur species scavenging amount of an imine of the formula ##STR1## wherein x is an integer from 1 to 10, R' is an organic moiety having a number of valences equal to x, R.sub.1 is hydrogen or a mono-valent organic moieties and R is a mono-valent olefin moiety, provided that R and R.sub.1 contain a total of from about four to about forty carbon atoms. In an alternative embodiment, the imine is produced by a condensation reactionic between an amine having at least one primary amino group and a carbonyl of the formula ##STR2## wherein R.sub.1 is hydrogen or a mono-valent organic moieties and R is a mono-valent olefin moiety, provided that R and R.sub.1 contain a total of from about four to about forty carbon atoms. In yet other embodiments, the imine is produced by a condensation reaction between an amine having at least one primary amino group and an aldehyde having at least one alpha-hydrogen in an aldehyde to primary amino group molar ratio of at least about 2:1, are also disclosed.

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Gentry, David. (1996). Use of olefinic imines to scavenge sulfur species (U.S. Patent No. 5567213). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5567213

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