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BR8600704A - Processo para a producao de solucoes com elevada pureza de hidrossulfitos de metal alcalino - Google Patents

Processo para a producao de solucoes com elevada pureza de hidrossulfitos de metal alcalino

Info

Publication number
BR8600704A
BR8600704A BR8600704A BR8600704A BR8600704A BR 8600704 A BR8600704 A BR 8600704A BR 8600704 A BR8600704 A BR 8600704A BR 8600704 A BR8600704 A BR 8600704A BR 8600704 A BR8600704 A BR 8600704A
Authority
BR
Brazil
Prior art keywords
solutions
production
high purity
alkaline metal
hydrosulphites
Prior art date
Application number
BR8600704A
Other languages
English (en)
Inventor
David William Cawlfield
Original Assignee
Olin 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 Olin Corp filed Critical Olin Corp
Publication of BR8600704A publication Critical patent/BR8600704A/pt

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)
  • Manufacture And Refinement Of Metals (AREA)
BR8600704A 1985-02-21 1986-02-19 Processo para a producao de solucoes com elevada pureza de hidrossulfitos de metal alcalino BR8600704A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/703,780 US4590058A (en) 1985-02-21 1985-02-21 Process for producing high purity solutions of alkali metal hydrosulfites

Publications (1)

Publication Number Publication Date
BR8600704A true BR8600704A (pt) 1986-10-29

Family

ID=24826756

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8600704A BR8600704A (pt) 1985-02-21 1986-02-19 Processo para a producao de solucoes com elevada pureza de hidrossulfitos de metal alcalino

Country Status (8)

Country Link
US (1) US4590058A (pt)
EP (1) EP0192438B1 (pt)
JP (1) JPH0621015B2 (pt)
AU (1) AU584982B2 (pt)
BR (1) BR8600704A (pt)
CA (1) CA1230463A (pt)
DE (1) DE3669869D1 (pt)
ZA (1) ZA86801B (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810483A (en) * 1987-06-01 1989-03-07 Olin Corporation Process for producing anhydrous alkali metal hydrosulfites
US5006327A (en) * 1989-07-18 1991-04-09 Olin Corporation Alkali metal hydrosulfite solutions
US5098679A (en) * 1990-12-21 1992-03-24 Olin Corporation Purification of alkali metal hydrosulfite solutions
US5034202A (en) * 1990-12-21 1991-07-23 Olin Corporation Removal of thiosulfate from hydrosulfite solutions
MX2021015251A (es) 2019-06-10 2022-10-03 Silox Canada Inc Proceso y sistema para producir cristales de hidrosulfito de sodio.

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938771A (en) * 1953-04-22 1960-05-31 Joseph R Ferry Method of making hyposulfites
NL293550A (pt) * 1963-05-31
US3839218A (en) * 1970-01-09 1974-10-01 Rohm & Haas Method of maintaining metal dithionite hydrate crystals in dispersible form
US3887695A (en) * 1970-02-05 1975-06-03 Virginia Chemicals Inc Production of sodium hydrosulfite from formates
US3804944A (en) * 1970-10-02 1974-04-16 Virginia Chemicals Inc Sodium dithionite solution stablization
US3961034A (en) * 1974-09-25 1976-06-01 Virginia Chemicals Inc. Method of removing sodium thiosulfate from a hydrosulfite reaction mixture
JPS534793A (en) * 1976-01-06 1978-01-17 Mitsui Toatsu Chem Inc Production of stable anhydrous sodium dithionite
ES448077A1 (es) * 1975-05-21 1977-07-01 Mitsui Toatsu Chemicals Un procedimiento para tratar las aguas madres en la produc- cion de ditionito sodico anhidro.
JPS51136597A (en) * 1975-05-21 1976-11-26 Mitsui Toatsu Chem Inc Method for processing mother solution of sodium dithionite anhydride production
US4076795A (en) * 1976-09-09 1978-02-28 Engelhard Minerals & Chemicals Corporation Hydrosulfite production
US4100098A (en) * 1976-10-26 1978-07-11 Olin Corporation Stabilized solutions of sodium dithionite
JPS55121905A (en) * 1979-03-13 1980-09-19 Mitsubishi Gas Chem Co Inc Sodium hydrosulfite composition
JPS5669205A (en) * 1979-11-13 1981-06-10 Mitsubishi Gas Chem Co Inc Preparation of sodium dithionite
US4283303A (en) * 1980-06-05 1981-08-11 Virginia Chemicals Inc. Process for manufacture of stable sodium dithionite slurries
JPS57209809A (en) * 1981-06-18 1982-12-23 Mitsubishi Gas Chem Co Inc Preparation of dithionite
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
US4534954A (en) * 1982-08-17 1985-08-13 Virginia Chemicals Inc. Sodium hydrosulfite slurries

Also Published As

Publication number Publication date
DE3669869D1 (de) 1990-05-03
EP0192438A2 (en) 1986-08-27
JPH0621015B2 (ja) 1994-03-23
JPS61197409A (ja) 1986-09-01
EP0192438A3 (en) 1987-07-29
EP0192438B1 (en) 1990-03-28
US4590058A (en) 1986-05-20
CA1230463A (en) 1987-12-22
AU584982B2 (en) 1989-06-08
ZA86801B (en) 1986-09-24
AU5378486A (en) 1986-08-28

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 19/02/2001