Chemistry: physical processes – Physical processes
Patent
1986-01-14
1987-11-10
Doll, John
Chemistry: physical processes
Physical processes
423304, C01B 2512
Patent
active
047055294
ABSTRACT:
The reactivity of phosphorus pentoxide is reduced and its flow behavior improved. To this end, phosphorus pentoxide in the form of its hexagonal modification is annealed over a period of 0.5 to 8 hours at temperatures of 200.degree. to 390.degree. C.
REFERENCES:
W. L. Hill et al, "Polymorphism of Phosphoric Oxide," Journal of the American Chemical Society, vol. 65 (May, 1943), pp. 794-802.
Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, vol. 17 (1982), John Wiley & Sons, pp. 516-520.
Gradl Reinhard
Heymer Gero
Kowalski Werner
Schimmel Gunther
Doll John
Hoechst Aktiengesellschaft
Langel Wayne A.
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