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.)
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WR Grace and Co
Original Assignee
WR Grace and Co
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Filing date
Publication date
Application filed by WR Grace and CofiledCriticalWR Grace and Co
Priority to FR915931ApriorityCriticalpatent/FR1339352A/fr
Application grantedgrantedCritical
Publication of FR1339352ApublicationCriticalpatent/FR1339352A/fr
C05C9/00—Fertilisers containing urea or urea compounds
C05C9/005—Post-treatment
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
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
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
FR915931A1962-11-201962-11-20Procédé de traitement thermique de l'urée destiné à réduire sa tendance à la floculation et produit ainsi obtenu
ExpiredFR1339352A
(fr)