Process for separating cyclic phosphazene oligomers

Details Process for separating cyclic phosphazene oligomers Process for separating cyclic phosphazene oligomers

1979-11-27

1981-06-09

Cintins, Ivars C.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210690, 423300, 423302, B01D 1500

Patent

active

042723825

ABSTRACT:
A process for separating cyclic phosphazene oligomers from a mixture containing cyclic phosphazene oligomers and linear phosphazenes by bringing the mixture into contact with a mineral adsorbent composed of mainly silicon and/or aluminum and removing the adsorbent. Cyclic phosphazene oligomers of high purity can be readily separated in high yields by the process.

REFERENCES:
patent: 3694171 (1972-09-01), Dreifus
patent: 3702833 (1972-11-01), Rose et al.
patent: 3869540 (1975-03-01), Hardy

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