DE3686793D1 - Behandlung der reaktionsmischung bei der herstellung von natriumdithionit. - Google Patents

Behandlung der reaktionsmischung bei der herstellung von natriumdithionit.

Info

Publication number
DE3686793D1
DE3686793D1 DE8686306026T DE3686793T DE3686793D1 DE 3686793 D1 DE3686793 D1 DE 3686793D1 DE 8686306026 T DE8686306026 T DE 8686306026T DE 3686793 T DE3686793 T DE 3686793T DE 3686793 D1 DE3686793 D1 DE 3686793D1
Authority
DE
Germany
Prior art keywords
treatment
production
reaction mixture
sodium dithionite
dithionite
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 - Fee Related
Application number
DE8686306026T
Other languages
English (en)
Other versions
DE3686793T2 (de
Inventor
Winslow, Jr
Joseph L Bush
Daniel D Dickens
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.)
Clariant Finance BVI Ltd
Original Assignee
Hoechst Celanese Corp
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 Hoechst Celanese Corp filed Critical Hoechst Celanese Corp
Publication of DE3686793D1 publication Critical patent/DE3686793D1/de
Application granted granted Critical
Publication of DE3686793T2 publication Critical patent/DE3686793T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C01B17/64—Thiosulfates; Dithionites; Polythionates
    • C01B17/66—Dithionites or hydrosulfites (S2O42-)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE8686306026T 1985-08-06 1986-08-05 Behandlung der reaktionsmischung bei der herstellung von natriumdithionit. Expired - Fee Related DE3686793T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/762,839 US4622216A (en) 1985-08-06 1985-08-06 Treatment of sodium dithionite reaction mixture

Publications (2)

Publication Number Publication Date
DE3686793D1 true DE3686793D1 (de) 1992-10-29
DE3686793T2 DE3686793T2 (de) 1993-02-18

Family

ID=25066155

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686306026T Expired - Fee Related DE3686793T2 (de) 1985-08-06 1986-08-05 Behandlung der reaktionsmischung bei der herstellung von natriumdithionit.

Country Status (5)

Country Link
US (1) US4622216A (de)
EP (1) EP0211648B1 (de)
JP (1) JP2517238B2 (de)
CA (1) CA1295806C (de)
DE (1) DE3686793T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5034210A (en) * 1989-05-23 1991-07-23 Hoechst Celanese Corporation Method of reducing ethylene oxide emissions
US4973471A (en) * 1989-06-29 1990-11-27 Hoechst Celanese Corporation Method for producing dust-free sodium dithionite

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028397B2 (de) * 1971-12-17 1975-09-13
JPS5481198A (en) * 1977-12-13 1979-06-28 Mitsubishi Gas Chem Co Inc Method of producing dithionite
JPS57209809A (en) * 1981-06-18 1982-12-23 Mitsubishi Gas Chem Co Inc Preparation of dithionite
JPS6018603B2 (ja) * 1981-11-09 1985-05-11 三菱瓦斯化学株式会社 亜二チオン酸塩の製造方法
JPS5891004A (ja) * 1981-11-26 1983-05-30 Mitsubishi Gas Chem Co Inc 亜二チオン酸塩の製造方法
JPS58110406A (ja) * 1981-12-21 1983-07-01 Mitsubishi Gas Chem Co Inc 亜二チオン酸塩の製造方法
JPS58110407A (ja) * 1981-12-21 1983-07-01 Mitsubishi Gas Chem Co Inc 亜二チオン酸塩の製造方法

Also Published As

Publication number Publication date
EP0211648A3 (en) 1987-07-29
JP2517238B2 (ja) 1996-07-24
CA1295806C (en) 1992-02-18
JPS6270206A (ja) 1987-03-31
DE3686793T2 (de) 1993-02-18
EP0211648B1 (de) 1992-09-23
EP0211648A2 (de) 1987-02-25
US4622216A (en) 1986-11-11

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Legal Events

Date Code Title Description
8332 No legal effect for de
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: CLARIANT FINANCE (BVI) LTD., TORTOLA, VG

8328 Change in the person/name/address of the agent

Free format text: SPOTT WEINMILLER & PARTNER, 80336 MUENCHEN

8339 Ceased/non-payment of the annual fee