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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUEDDEUTSCHE KALKSTICKSTOFF-WERKE AG
Evonik Operations GmbH
Original Assignee
SUEDDEUTSCHE KALKSTICKSTOFF-WERKE AG
SKW Trostberg AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SUEDDEUTSCHE KALKSTICKSTOFF-WERKE AG, SKW Trostberg AGfiledCriticalSUEDDEUTSCHE KALKSTICKSTOFF-WERKE AG
Publication of ES270039A1publicationCriticalpatent/ES270039A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Abstract
A process for obtaining melamine characterized by heating by urea and/or its pyrolysis products at normal pressure and in the presence of catalysts and ammonia supplied, and by which in the 1st stage the urea is heated to 200-400º in presence of only a quantity of added ammonia, that the melamine formed is not expelled. (Machine-translation by Google Translate, not legally binding)
ES0270039A1961-09-271961-08-22A procedure for the obtaining of melamine (Machine-translation by Google Translate, not legally binding)
ExpiredES270039A1
(en)
A procedure for the obtaining of melamine from urea and/or its thermal dissociation products through a treatment of heat or pressure and heat of the starting material in the presence of ammonia and a catalyst (Machine-translation by Google Translate, not legally binding)
A procedure for the obtaining of melamine from urea and its products of thermal decomposition (Machine-translation by Google Translate, not legally binding)
Procedure for the aminoration of contractions in bodies pressed with melamine resin as a means of union (Machine-translation by Google Translate, not legally binding)
A procedure for obtaining products for the inhibition of corrosión and for the protection against the same (Machine-translation by Google Translate, not legally binding)