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Knapsack AG
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Knapsack AG
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Application filed by Knapsack AGfiledCriticalKnapsack AG
Publication of ES315429A1publicationCriticalpatent/ES315429A1/en
Process for the manufacture of alkalimetimethaphosphates, characterized in that alkaline compounds having a volatile anion, for example oxides, hydroxides, carbonates, chlorides or nitrates, are introduced into a flame fed with phosphorus and a gas, preferably air, containing oxygen, and the phosphate mass obtained as usual is preserved directly after solidification for more than 1 minute, preferably 5 to 10 minutes, at temperatures above 300º C, advantageously above 350º C but below the solidification point of melt, and then cooled to room temperature. (Machine-translation by Google Translate, not legally binding)
ES0315429A1964-07-171965-07-16Procedure for the manufacture of alcalitrimetaphosphates. (Machine-translation by Google Translate, not legally binding)
ExpiredES315429A1
(en)
Continuous procedure for the preparation of superfosforic acid through thermal treatment of orthophosphoric acid. (Machine-translation by Google Translate, not legally binding)