Recovery of isophthalonitrile

Details Recovery of isophthalonitrile Recovery of isophthalonitrile

1977-05-17

1979-01-16

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260465C, C07C12154

Patent

active

041349105

ABSTRACT:
Isophthalonitrile (IPN) is recovered from an isophthalonitrile production reaction effluent, which contains water vapor, by direct contact quenching of the effluent with an organic quench liquid to cool the effluent to a temperature at which essentially all of the isophthalonitrile is condensed as a solution in the organic quench liquid, without condensation of water vapor. In this manner, isophthalonitrile is recovered from the effluent and separated from water vapor, thereby preventing the liquid phase hydrolysis of IPN which occurred in prior art procedures.

REFERENCES:
patent: 3732275 (1973-05-01), Platz et al.

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