Solvent recovery process

Details Solvent recovery process Solvent recovery process

1976-04-14

1979-02-27

Coughlan, Jr., Paul M.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

203 46, C07C 702, C07F 924

Patent

active

041419375

ABSTRACT:
A process for the recovery of materials suitable for recycle to the manufacture of alkoxy or aryloxyphosphazenes including, inter alia, solvents, hydroxy compounds, acid acceptors and the like, from flash distillation of the washed phosphazene product together with a second vapor stream produced from the aqueous wash of the crude phosphazene product, whereby an aqueous phase and an organic phase are produced and recyclable materials are extracted from the aqueous phase into the organic phase, separating the organic phase from the aqueous phase and separating the organic phase into components by conventional methods which are suitable recycle streams for the phosphazene product manufacturing process.

REFERENCES:
patent: 3136727 (1964-06-01), Nichols
patent: 3291865 (1966-12-01), Kober et al.
patent: 3294872 (1966-12-01), Allcock
patent: 3468981 (1969-09-01), Bezman
patent: 3794701 (1974-02-01), Bik
patent: 3891448 (1975-06-01), Braxton et al.
patent: 3974242 (1976-08-01), Lanier et al.

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