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US 5,030,430 AGranted
Preparation of phosphates by induction melting
AssigneeRhone-Poulenc Chimie
InventorsPaul Michel, Francoise Seon, Rene Perrier de la Bathie
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Abstract
Phosphates, e.g., the polyphosphates and halophosphates, are prepared in high purity by melt thermocondensing corresponding precursors thereof, e.g., salts of orthophosphoric, pyrophosphoric or metaphosphoric acid, via electromagnetic induction heating, for example in an auto-crucible furnace.
Claims22
A process for the preparation of a phosphate, comprising melt thermocondensing corresponding precursor of such phosphate by electromagnetic induction heating.
Dependencies are inferred from the claim text.