Baker Hughes Corporation

James A Hackerott

Gordon T Rivers

Jun Tian

Arthur Cizek

Oxazolidinium compounds are formed by the reaction of a halohydrin or an epoxide with a secondary amine and an aldehyde or a ketone. The oxazolidinium compounds are formed directly and do not require the reaction of a pre-formed oxazolidine with an alkylating agent. The compounds are useful as gas hydrate inhibitors in oil and gas production and transportation. The oxazolidinium compounds have the structure:  where R is a saturated or unsaturated alkyl group containing from 3 to 20 carbon atoms, where R has an absence of aryl groups; Rand Reach independently have 1 to 20 carbon atoms, may be linear, branched or cyclic; linear, branched or cyclic groups having 1 to 20 carbon atoms substituted with alkyl groups, aryl groups, alkylaryl groups, and aryl groups substituted with alkoxy groups, and X is selected from the group consisting of chlorine, fluorine, bromine or iodine.

Oxazolidinium compounds

Oxazolidinium compounds are formed by the reaction of a halohydrin or an epoxide with a secondary amine and an aldehyde or a ketone. The oxazolidinium compounds are formed directly and do not require the reaction of a pre-formed oxazolidine with an alkylating agent. The compounds are useful as gas hydrate inhibitors in oil and gas production and transportation.

Oxazolidinium compounds and use as hydrate inhibitors

The reaction of propargyl alcohol and iodine gives 2,3di-iodo-2-propen-1-ol, and it has been discovered that this compound is effective as an intermediate in a corrosion inhibitor for metals in acid media, particularly halogen acids. The compound provides iodine to the media in a stable form that does not appear to degrade over time.

Corrosion inhibitor

A method making sulfhydryl scavenging agents with reduced water content comprising treating the sulfhydryl scavenging agent to remove water. The sulfyhydryl scavenging agent preferably comprises an &mdash;N&mdash;C&mdash;N&mdash; moiety produced by condensation of an alkanolamine with an aldehyde. Preferred sulfhydryl scavenging agents are bisoxazolidines.

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Houston, TX, United States of America

James A Hackerott