Process for purifying phosphonitrile chlorides

Details Process for purifying phosphonitrile chlorides Process for purifying phosphonitrile chlorides

1984-10-09

1985-06-11

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 69, 203 70, 203 91, 423300, 423302, B01D 334, C01B 2510

Patent

active

045226890

ABSTRACT:
A process for completely separating tri(phosphonitrile chloride) from tetra(phosphonitrile chloride) and/or phosphonitrile chloride oligomer which includes vacuum distillation of the phosphonitrile chloride mixture together with an inert mixture of hydrocarbons as solvent.

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patent: 3378353 (1968-04-01), Hands
patent: 3379510 (1968-04-01), Jaszka
patent: 3669633 (1972-06-01), Beinfest et al.
patent: 3677720 (1972-07-01), Maund et al.
patent: 3694171 (1972-09-01), Dreifus
patent: 3974261 (1976-08-01), Bergeron

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