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Publication of DE301279CpublicationCriticalpatent/DE301279C/de
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
C07C273/04—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 from carbon dioxide and ammonia
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Chemical & Material Sciences
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Organic Chemistry
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Einrichtung zur Ausloesung eines chemischen Vorgangs in einer Fluessigkeit durch ein Gas unter Zuhilfenahme eines Mischgasfluessigkeithebers (Mammut-Pumpe)
Verfahren zur Wiedergewinnung und Wiederverwendung von nicht umgesetztem Ammoniak und Kohlendioxyd bei der mit ueber-schuessigem Ammoniak ausgefuehrten Harnstoffsynthese