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Stamicarbon BV
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Stamicarbon BV
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Publication of ES281858A1publicationCriticalpatent/ES281858A1/es
C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
C07C273/189—Purification, separation, stabilisation, use of additives
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
ES281858A1961-10-261962-10-25Un procedimiento para la eliminación de biuret a partir de una solución saturada de urea que contiene biuret
ExpiredES281858A1
(es)