GB676667A - Improvements in or relating to the oxidation of hydrogen chloride - Google Patents

Improvements in or relating to the oxidation of hydrogen chloride

Info

Publication number
GB676667A
GB676667A GB16171/50A GB1617150A GB676667A GB 676667 A GB676667 A GB 676667A GB 16171/50 A GB16171/50 A GB 16171/50A GB 1617150 A GB1617150 A GB 1617150A GB 676667 A GB676667 A GB 676667A
Authority
GB
United Kingdom
Prior art keywords
chromic oxide
catalyst
alumina
hydrogen chloride
inert carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB16171/50A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diamond Shamrock Corp
Original Assignee
Diamond Alkali Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diamond Alkali Co filed Critical Diamond Alkali Co
Publication of GB676667A publication Critical patent/GB676667A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • 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
    • C01B7/03—Preparation from chlorides
    • C01B7/04—Preparation of chlorine from hydrogen chloride

Abstract

Hydrogen chloride is oxidized by passing a gaseous stream containing oxygen, e.g. air, and hydrogen chloride over a body of chromic oxide, at least part of which is prepared at a temperature of less than 500 DEG C and referred to as "dark unglowed" amorphous chromic oxide, with or without an inert carrier, maintained at 340-480 DEG C, and recovering chlorine. The inert carrier may be pumice, silica, silica gel, clay, alumina, activated alumina, or silica-alumina. The catalyst body may be prepared by impregnating the inert carrier with aqueous chromic acid, which is dehydrated to chromium trioxide and reduced in hydrogen at 400 DEG C or less to chromic oxide, or by intimately mixing an aqueous slurry of carrier and chromic oxide, drying and breaking up the resultant solid. The catalyst may consist of 10-50 per cent chromic oxide and 50-90 per cent activated alumina. The proportion of hydrochloric acid to air should be 1:0.48 to 1:3 and the gas mixture may be passed at the rate of 300-750 volumes per volume of catalyst per hour. The catalyst may be used as a fixed or fluidized bed.
GB16171/50A 1949-08-27 1950-06-28 Improvements in or relating to the oxidation of hydrogen chloride Expired GB676667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US676667XA 1949-08-27 1949-08-27

Publications (1)

Publication Number Publication Date
GB676667A true GB676667A (en) 1952-07-30

Family

ID=22077554

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16171/50A Expired GB676667A (en) 1949-08-27 1950-06-28 Improvements in or relating to the oxidation of hydrogen chloride

Country Status (1)

Country Link
GB (1) GB676667A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62270405A (en) * 1986-05-19 1987-11-24 Mitsui Toatsu Chem Inc Production of chlorine
EP0251731A2 (en) * 1986-06-30 1988-01-07 MITSUI TOATSU CHEMICALS, Inc. Production of chlorine
WO1988000171A1 (en) * 1986-06-26 1988-01-14 Mitsui Toatsu Chemicals, Inc. Process for producing chlorine
EP0331465A1 (en) * 1988-03-01 1989-09-06 MITSUI TOATSU CHEMICALS, Inc. Production process of chlorine
US5169823A (en) * 1990-07-05 1992-12-08 Mitsui Toatsu Chemicals, Inc. Method for stabilizing treatment of catalytic activity
EP0711599A1 (en) 1994-11-14 1996-05-15 Mitsui Toatsu Chemicals, Incorporated Catalyst for preparing chlorine from hydrogen chloride
US5663112A (en) * 1993-12-01 1997-09-02 Korea Institute Of Science And Technology Cerous chloride-chromic oxide catalyst for producing chlorine, methods for producing the same and a method for producing chlorine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62270405A (en) * 1986-05-19 1987-11-24 Mitsui Toatsu Chem Inc Production of chlorine
JPH0413283B2 (en) * 1986-05-19 1992-03-09 Mitsui Toatsu Chemicals
WO1988000171A1 (en) * 1986-06-26 1988-01-14 Mitsui Toatsu Chemicals, Inc. Process for producing chlorine
US4822589A (en) * 1986-06-26 1989-04-18 Mitsui Toatsu Chemicals, Incorporated Manufacturing process of chlorine
EP0251731B1 (en) * 1986-06-30 1993-11-24 MITSUI TOATSU CHEMICALS, Inc. Production of chlorine
EP0251731A2 (en) * 1986-06-30 1988-01-07 MITSUI TOATSU CHEMICALS, Inc. Production of chlorine
AU570375B2 (en) * 1986-06-30 1988-03-10 Mitsui Toatsu Chemicals Inc. Process for production of chlorine from hcl in off-gas
US4803065A (en) * 1986-06-30 1989-02-07 Mitsui Toatsu Chemicals, Incorporated Production process of chlorine
EP0331465A1 (en) * 1988-03-01 1989-09-06 MITSUI TOATSU CHEMICALS, Inc. Production process of chlorine
US5112593A (en) * 1988-03-01 1992-05-12 Mitsui Toatsu Chemicals, Incorporated Production process of chlorine
US5169823A (en) * 1990-07-05 1992-12-08 Mitsui Toatsu Chemicals, Inc. Method for stabilizing treatment of catalytic activity
US5663112A (en) * 1993-12-01 1997-09-02 Korea Institute Of Science And Technology Cerous chloride-chromic oxide catalyst for producing chlorine, methods for producing the same and a method for producing chlorine
EP0711599A1 (en) 1994-11-14 1996-05-15 Mitsui Toatsu Chemicals, Incorporated Catalyst for preparing chlorine from hydrogen chloride

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