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Stamicarbon BV
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Stamicarbon BV
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Publication of ES259541A1publicationCriticalpatent/ES259541A1/en
C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
C07D201/02—Preparation of lactams
C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
L-Lysine or a salt thereof is prepared by hydrolysis of an aqueous solution of L-a -amino-e -caprolactam with a strong base, e.g. sodium or potassium hydroxide. Sodium or potassium lysinates so obtained may be passed over an ion exchanger to give L-lysine, which may be subsequently converted to the calcium or hydrochloric acid salt.
ES0259541A1959-07-091960-07-08Process for the manufacture of l-lysine or salts thereof
ExpiredES259541A1
(en)
A procedure for preparing potassium sulphate, manganese chloride and/or manganese hydroxide (Machine-translation by Google Translate, not legally binding)