Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2980/50A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Minerals and Chemical Corp
Original Assignee
International Minerals and Chemical Corp
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Publication date
Application filed by International Minerals and Chemical CorpfiledCriticalInternational Minerals and Chemical Corp
Publication of GB680653ApublicationCriticalpatent/GB680653A/en
Preparation Of Compounds By Using Micro-Organisms
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Monoclinic glutamic acid crystals are made by (1) crystalling from a mixture of an aqueous solution of monosodium glutamate, monoclinic glutamic acid crystals as seed crystals, and sufficient non-oxidizing mineral acid to adjust the pH of said solution to between about 2.5 and about 4, preferably 3.0 to 3.3; or (2), if no seed crystals are available, by crystallizing from an aqueous solution containing 5-15 per cent monosodium glutamate to which has been added with agitation within about thirty seconds sufficient non-oxidizing mineral acid to adjust the pH as under (1). In process (1), the aqueous solution may contain 5-40 per cent monosodium glutamate, and the process may be continuous.
GB2980/50A1949-07-021950-02-06Improvements in or relating to production of glutamic acid
ExpiredGB680653A
(en)