ES8206376A1 - Procedure for obtaining alkaline pureza trisodic alkaline phosphate (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for obtaining alkaline pureza trisodic alkaline phosphate (Machine-translation by Google Translate, not legally binding)
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Foret SA
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Foret SA
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Priority to ES505307ApriorityCriticalpatent/ES505307A0/en
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Publication of ES505307A0publicationCriticalpatent/ES505307A0/en
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals
(AREA)
Abstract
Procedure for obtaining alkaline trisodic phosphate. Is part of sodium phosphate from phosphoric acid via humeda, preventing neutralizandose to elveva the ph to a value of around 7.1 as the relationship na/p is taken to 1.66 approximately, proceeding to a vacuum filtration and introducing the papilla in a reactor with temperature of 90 c., in continuous removal at normal pressure, where an alcali is added in proportion of 40-50 per 100, taking the relationship to a value of 3, filtering the papilla and calcinning afterward, where the alcali is 100 percent of sosa caustica or a mixture of sosa caustica and sodium carbonate at 50 per 100. (Machine-translation by Google Translate, not legally binding)
ES505307A1981-09-081981-09-08
PROCEDURE FOR OBTAINING MEDIUM PURITY ALKALINE TRISODIC PHOSPHATE
GrantedES505307A0
(en)
Procedure for neutralization of humid phosphoric acid for the obtaining of tripolifosphates in separate filtration (Machine-translation by Google Translate, not legally binding)