Process for the purification of phosphorus oxychloride

Details Process for the purification of phosphorus oxychloride Process for the purification of phosphorus oxychloride

1998-07-10

1999-06-15

Nguyen, Ngoc-Yen

Chemistry of inorganic compounds

Phosphorus or compound thereof

Halogen containing

544334, C01B 2510

Patent

active

059119624

ABSTRACT:
Impure POCl.sub.3 is purified by distillation in the presence of high-boiling nitrogen compounds from the group consisting of the substituted pyridines and pyrimidines, the open-chain and cyclic aliphatic amines, the open-chain and cyclic amidines, the guanidines and the aromatic amines.

REFERENCES:
patent: 2622965 (1952-12-01), Tidwell
patent: 4178353 (1979-12-01), Baker et al.
patent: 5677453 (1997-10-01), Cramm et al.
patent: 5719285 (1998-02-01), Steffan
patent: 5723612 (1998-03-01), Huber et al.

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