Process for the isolation of tetrachlorobutane and for the produ

Details Process for the isolation of tetrachlorobutane and for the produ Process for the isolation of tetrachlorobutane and for the produ

1991-02-15

1991-12-10

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528159, 528212, 528 86, C08G 6378

Patent

active

050719432

ABSTRACT:
Secondary products formed in the chlorination of butadiene can be reacted with phenols in the absence of iron catalysts to form novolak-like phenolic resins in such a way that the tetrachlorobutane present in the secondary products does not react. It can be distilled off with the excess phenol and isolated in pure form from the distillate obtained.

REFERENCES:
patent: 3644537 (1972-02-01), Dannels et al.
patent: 3752780 (1973-08-01), Petersen et al.
patent: 4707526 (1987-11-01), Sasaki et al.

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