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Expired
Application number
GB24736/56A
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Corbion NV
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Centrale Suiker Maatschappij NV
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Publication of GB810851ApublicationCriticalpatent/GB810851A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Glutamic acid is prepared by hydrolysing at elevated temperatures concentrated liquids containing pyrrolidone carboxylic acid with 11 to 16 per cent by weight of solid sodium hydroxide, or the equivalent quantity of another solid alkali metal hydroxide, calculated on the weight of the concentrated liquids. An example describes the hydrolysis of vinasse at 85 DEG C., using 15 per cent by weight of solid NaOH based on the weight of vinasse. Specifications 648,784 and 651,643 are referred to.
GB24736/56A1955-08-201956-08-13Process for the hydrolysis of pyrrolidone carboxylic acid in alkaline liquids
ExpiredGB810851A
(en)
A procedure for the hydrolysis of pyrrolidone carboxylic acid in alkaline liquids at high temperature (Machine-translation by Google Translate, not legally binding)