Chlorinating waste streams to recover cyanopyridine contained th

Details Chlorinating waste streams to recover cyanopyridine contained th Chlorinating waste streams to recover cyanopyridine contained th

1987-10-13

1989-03-21

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260701, C07D21384

Patent

active

048144568

ABSTRACT:
Cyanopyridines are recovered from waste streams containing the same using a low temperature liquid phase chlorination step followed by filtration. This process increases recovery of unreacted cyanopyridine and significantly reduces waste stream volume.

REFERENCES:
patent: 3317549 (1967-05-01), Johnston
patent: 3420833 (1969-01-01), Taplin, III
patent: 3575992 (1971-04-01), Taplin, III
patent: 3591597 (1971-06-01), Taplin, III
patent: 3629424 (1971-12-01), Torba
patent: 3637715 (1972-01-01), Scheidt
patent: 3644380 (1972-02-01), Harmetz
patent: 4131642 (1978-12-01), Miller et al.
patent: 4556716 (1985-12-01), Quarroz
Chem Abstracts vol. 77; 139752e (1972).

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