Process to synthesize a linear phosphonitrilic chloride catalyst

Details Process to synthesize a linear phosphonitrilic chloride catalyst Process to synthesize a linear phosphonitrilic chloride catalyst

1997-12-31

1999-06-15

Wood, Elizabeth D.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Nitrogen compound containing

502208, 502224, B01J 2724, B01J 2714, B01J 2710

Patent

active

059122030

ABSTRACT:
The present invention relates to a process for the synthesis of a linear phosphonitrilic chloride (LPNC) catalyst solution. The process involves mixing phosphorus pentachloride with a suitable silazane in a methylene chloride medium. The methylene chloride is then replaced with a siloxane medium followed by heating this mixture to form a LPNC catalyst solution.

REFERENCES:
patent: 3156668 (1964-11-01), Pike
patent: 3839388 (1974-10-01), Nitzsche et al.
patent: 5210129 (1993-05-01), de la Croi Habimana et al.
patent: 5585451 (1996-12-01), Burkus, II et al.
"Elucidation of the Reaction of Phosphorous Pentachloride and Ammonium Chloride by Phosphorus-31 Nuclear Magnetic Resonance Spectroscopy", by J. Emsley et al., Inorganic Physics Theor., May 1970, pp. 3025-3029.

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