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US 4,375,457 AGranted
Process for purifying yellow phosphorus
AssigneeStauffer Chemical Company
InventorFawzy G. Sherif
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Abstract
A method for purifying yellow phosphorus is disclosed comprising contacting the molten phosphorus with a solid phosphorus acid containing catalyst comprising an oxygen acid of phosphorus carried on an inert absorbant support. The purified phosphorus is thereafter separated from the solid catalyst and preferably is separated therefrom by filtration through the catalyst layer.
Claims8
A process of purifying yellow phosphorus comprising contacting the yellow phosphorus with an oxygen acid of phosphorus carried on a solid inert absorbent support, and separating the purified phosphorus product therefrom.
Dependencies are inferred from the claim text.