FR878749A - Method and device for switching on contact devices for the production of sulfur trioxide - Google Patents

Method and device for switching on contact devices for the production of sulfur trioxide

Info

Publication number
FR878749A
FR878749A FR878749DA FR878749A FR 878749 A FR878749 A FR 878749A FR 878749D A FR878749D A FR 878749DA FR 878749 A FR878749 A FR 878749A
Authority
FR
France
Prior art keywords
switching
production
sulfur trioxide
contact devices
devices
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
Other languages
French (fr)
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.)
Societe pour lIndustrie Chimique a Bale CIBA
Original Assignee
Societe pour lIndustrie Chimique a Bale CIBA
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 Societe pour lIndustrie Chimique a Bale CIBA filed Critical Societe pour lIndustrie Chimique a Bale CIBA
Application granted granted Critical
Publication of FR878749A publication Critical patent/FR878749A/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
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/80—Apparatus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
FR878749D 1940-06-15 1941-06-06 Method and device for switching on contact devices for the production of sulfur trioxide Expired FR878749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH549735X 1940-06-15

Publications (1)

Publication Number Publication Date
FR878749A true FR878749A (en) 1943-01-28

Family

ID=4519551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR878749D Expired FR878749A (en) 1940-06-15 1941-06-06 Method and device for switching on contact devices for the production of sulfur trioxide

Country Status (4)

Country Link
BE (1) BE441741A (en)
CH (1) CH216686A (en)
FR (1) FR878749A (en)
GB (1) GB549735A (en)

Also Published As

Publication number Publication date
GB549735A (en) 1942-12-04
BE441741A (en)
CH216686A (en) 1941-09-15

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