Process for recovery of anhydrous hydrogen chloride from mixture

Details Process for recovery of anhydrous hydrogen chloride from mixture Process for recovery of anhydrous hydrogen chloride from mixture

1994-11-23

1997-12-02

Kim, Christopher

Distillation: processes, separatory

Distilling to separate or remove only water

203 29, 203 87, 203 98, 585638, 585641, 585642, 588206, 208 87, 208 89, 208 92, 208100, B01D 300

Patent

active

056931913

ABSTRACT:
A process is provided for the recovery of hydrogen chloride in anhydrous form from a dry (containing less than about 500 parts per million by weight of water) mixture of hydrogen chloride with one or more non-condensable gases and which may also contain components heavier than hydrogen chloride, which process comprises distilling the mixture to produce an overheads stream containing the non-condensable gases and about 95 percent or more by weight of the hydrogen chloride in the mixture and a bottoms stream containing about 95 percent or greater by weight of all components heavier than hydrogen chloride, and compressing and refrigerating the overheads stream whereby a selected proportion of the hydrogen chloride in the overheads stream is produced in a liquid anhydrous form containing less than about 50 parts per million by weight of water.

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Journal from Chemia Stosowana214-218 1980 J. Myszkowski, W. Pazdzioch, J. Zalinska-Gawronska, M. Antoszczyszyn, W. Goc and M. Szymroszczyk.

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