Oxazolidinium compounds and use as hydrate inhibitors

Details Oxazolidinium compounds and use as hydrate inhibitors Oxazolidinium compounds and use as hydrate inhibitors

2007-10-16

2010-02-16

Saeed, Kamal A (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C585S899000

Reexamination Certificate

active

07662970

ABSTRACT:
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.

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Ager et al. (Chem. Rev., 1996, 96(2); 835-876).
N. J. Leonard, et al., “Small Charged Rings. IV. Expansion of the Aziridinium Ring by Reaction with Aldehydes,” Journal of Organic Chemistry, Oct. 1963, pp. 2850-2854, vol. 28.

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