Process for the production of N-methyl pyrrolidone using...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

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06987191

ABSTRACT:
A process for the production of N-methyl pyrrolidone using gamma butyrolactone and mixed methylamines as starting materials, in a continuous process, in such operating conditions as to allow the production of high purity N-methyl pyrrolidone in high yields.

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Ullmann's Encyclopedia of Industrial Chemistry, Fifth, Completely Revised Edition, vol. A22, pp. 457-461 1993.

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