Process for preparing crystalline phosphonitrilic chloride oligo

Details Process for preparing crystalline phosphonitrilic chloride oligo Process for preparing crystalline phosphonitrilic chloride oligo

1978-11-29

1981-03-17

Vertiz, O. R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Halogen containing

C01B 2510

Patent

active

042567157

ABSTRACT:
An improved process for preparing tri- and tetraphosphonitrilic chlorides in a shortened period of time in high yields by reacting ammonium chloride with phosphorus pentachloride produced simultaneously with the progress of the reaction from phosphorus trichloride and chlorine, in an organic solvent inert to chlorine in the presence of a catalyst, while adding dropwise phosphorus trichloride and supplying chlorine gas to the reaction system.

REFERENCES:
patent: 3359080 (1967-12-01), Ridgway et al.
patent: 3462247 (1969-08-01), Paddock et al.
patent: 3669633 (1972-06-01), Beinfest et al.
patent: 3860693 (1975-01-01), Graham
patent: 3869540 (1975-03-01), Hardy

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