Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1978-02-21
1982-05-11
Gantz, Delbert E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
570192, 570196, 570200, 570207, 570216, 570219, 570231, 570234, 570252, C07C 1700
Patent
active
043295258
ABSTRACT:
A compound is chlorinated with chlorine to produce chlorinated product and hydrogen chloride byproduct. Recovered hydrogen chloride byproduct is contacted with oxygen and a molten salt mixture containing the higher and lower valent chlorides of a multivalent metal, such as cuprous and cupric chloride, to effect recovery of the hydrogen chloride by enriching the molten salt content of the higher valent chloride. The molten salt, enriched in higher valent chloride, is then dechlorinated by use of a stripping gas, preferably hydrogen chloride, to produce a gaseous effluent containing stripped chlorine and the stripping gas, which is then recycled to the chlorination step. The presence of stripping gas, as a diluent, improves the chlorination operation.
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patent: 2498552 (1950-02-01), Kilgren et al.
patent: 3363010 (1968-01-01), Schwarzenbek
patent: 3671596 (1972-06-01), Bellis
patent: 3872174 (1975-03-01), Bellis
patent: 3937744 (1976-02-01), Riegel
patent: 4046823 (1977-09-01), Gordon et al.
Riegel Herbert
Strangio Vincent
Sze Morgan C.
Boska Joseph A.
Gantz Delbert E.
Marn Louis E.
Olstein Elliot M.
The Lummus Company
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