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BK Ladenburg GmbH
Knapsack AG
Original Assignee
Knapsack AG
Benckiser Knapsack GmbH
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Filing date
Publication date
Application filed by Knapsack AG, Benckiser Knapsack GmbHfiledCriticalKnapsack AG
Priority to ES0365855ApriorityCriticalpatent/ES365855A1/en
Publication of ES365855A1publicationCriticalpatent/ES365855A1/en
Procedure for the preparation of chain-shaped ammonium polyphosphates with the general formula (NH4PO3) n in which n corresponds to a number from 10 to 400, starting from ammonium orthophosphate, phosphorous pentoxide and optionally urea, in the presence of gaseous ammonia, characterized in that a mixture in the proportion of 1 mol of ammonium orthophosphate: ( (see formula) moles of P4O10 + x moles of urea), in which x = 0 to 0.5, preferably 0.05 to 0.25, is tempered for at least 10 minutes and for at most 60 minutes in the presence of ammonia at temperatures of approximately 200 to 340ºC, the mixtures in which x is less than 0.25, previously subjected to temperatures below 190ºC, for 5 to 10 minutes, to an atmosphere of ammonia. (Machine-translation by Google Translate, not legally binding)
ES0365855A1969-04-101969-04-10Procedure for the preparation of ammonium polyphosphates (Machine-translation by Google Translate, not legally binding)
ExpiredES365855A1
(en)
Procedure for the preparation of etilendiamino - mono-beta-propionic acid-tri- (methylen-phosphonic acid). (Machine-translation by Google Translate, not legally binding)
A procedure, with its corresponding appliances, for the granulation of the superfosfato without drying (Machine-translation by Google Translate, not legally binding)
Process for the preparation of n, n ', n "- tricclohexil-n, n', n" -trimethyltryamide of phosphoric acid. (Machine-translation by Google Translate, not legally binding)
A procedure for the polycondensation of acid amidas rent, alquiliden, and aralquiliden-bis-halºgenocarboxºlico (Machine-translation by Google Translate, not legally binding)