Production of red phosphorus

Details Production of red phosphorus Production of red phosphorus

C - Chemistry, Metallurgy

01

B

23/324, 44/70

C01B 25/023 (2006.01)

Patent

CA 1323172

ABSTRACT Amorphous red phosphorus useful for matches, or as flame retardant is made by forming a slurry of 10-45% red phosphorus in molten white phosphorus, reducing the content of yellow phosphorus to less than 20% of the red phosphorus by separation at less than 280°C, and then heating the product at above 295°C to convert, and preferably also evaporate, the white phosphorus.

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