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Application filed by Lonza AgfiledCriticalLonza Ag
Publication of BE595681ApublicationCriticalpatent/BE595681A/fr
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
C07C273/02—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 urea, its salts, complexes or addition compounds
C07C273/14—Separation; Purification; Stabilisation; Use of additives
C07C273/16—Separation; Purification
C—CHEMISTRY; METALLURGY
C05—FERTILISERS; MANUFACTURE THEREOF
C05C—NITROGENOUS FERTILISERS
C05C9/00—Fertilisers containing urea or urea compounds
C05C9/005—Post-treatment
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
BE595681A1959-10-081960-10-03Procédé de fabrication d'urée pauvre en eau et en biuret
BE595681A
(fr)