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Expired
Application number
GB2949/53A
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Wacker Chemie AG
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Wacker Chemie AG
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Publication of GB772477ApublicationCriticalpatent/GB772477A/en
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B7/00—Halogens; Halogen acids
C01B7/01—Chlorine; Hydrogen chloride
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Inorganic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Gaseous chlorine or hydrogen chloride is dried by passing over carbon at elevated temperature, preferably above 400 DEG C. Practically complete drying of gas which at 20 DEG C. is saturated with water vapour is obtained at 450-650 DEG C. The carbon may be in the form of active carbon, coke or charcoal. Iron, copper or barium chloride may be present as activator. In the drying of hydrogen chloride, chlorine may be added so as to combine with the hydrogen liberated by the reaction of the water vapour with the carbon. Excess chlorine may be removed by washing with tetrachlorethane hexachlorobutadiene or by treating with a compound which reacts with chlorine, e.g. trichlorethylene.
GB2949/53A1952-02-051953-02-02Process for drying gaseous chlorine or hydrogen chloride containing water vapour
ExpiredGB772477A
(en)