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Priority claimed from NL7903473Aexternal-prioritypatent/NL7903473A/en
Priority claimed from NL7907368Aexternal-prioritypatent/NL7907368A/en
Application filed by Stamicarbon B.V.filedCriticalStamicarbon B.V.
Priority claimed from EP80200405Aexternal-prioritypatent/EP0018696B1/en
Application grantedgrantedCritical
Publication of ATE1505T1publicationCriticalpatent/ATE1505T1/en
Melamine prepn. avoiding formation of di:amination by=products - in fluid catalyst bed, by maintaining ammonia partial pressure in fluidising gas mixt. at specific level