Process to produce vinylidene chloride using phase transfer cata

Details Process to produce vinylidene chloride using phase transfer cata Process to produce vinylidene chloride using phase transfer cata

1993-08-18

1995-03-07

Mars, Howard T.

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

Organic compounds

Halogen containing

585641, 585642, C07C 1734

Patent

active

053960025

ABSTRACT:
The invention concerns a process for producing unsaturated compounds from chlorinated alkanes by dehydrochlorination wherein a phase transfer catalyst is used during reaction of chlorinated alkane with aqueous base. After dehydrochlorination, the products are distilled or flashed off. Then, the phase transfer catalyst is recovered and reused by extracting the catalyst from spent aqueous base with fresh chlorinated alkane and using the mixture of chlorinated alkane and catalyst from the extraction as feedstock.

REFERENCES:
patent: 3664966 (1972-05-01), Gordon
patent: 3754044 (1973-08-01), Hargreaves, II et al.
patent: 4308410 (1981-12-01), Hall et al.
patent: 4418232 (1983-11-01), Maurin, III
patent: 4605800 (1986-08-01), Englert, Jr. et al.

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