SE9501287D0 - Electrochemical process - Google Patents

Electrochemical process

Info

Publication number
SE9501287D0
SE9501287D0 SE9501287A SE9501287A SE9501287D0 SE 9501287 D0 SE9501287 D0 SE 9501287D0 SE 9501287 A SE9501287 A SE 9501287A SE 9501287 A SE9501287 A SE 9501287A SE 9501287 D0 SE9501287 D0 SE 9501287D0
Authority
SE
Sweden
Prior art keywords
electrochemical process
alkali metal
green liquor
sulfide
oxidize
Prior art date
Application number
SE9501287A
Other languages
Swedish (sv)
Other versions
SE515833C2 (en
SE9501287L (en
Inventor
Johan Landfors
Bo Haakansson
Original Assignee
Eka Nobel Ab
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 Eka Nobel Ab filed Critical Eka Nobel Ab
Priority to SE9501287A priority Critical patent/SE515833C2/en
Publication of SE9501287D0 publication Critical patent/SE9501287D0/en
Priority to NZ286303A priority patent/NZ286303A/en
Priority to FI961467A priority patent/FI110878B/en
Priority to PT101862A priority patent/PT101862B/en
Priority to BR9601235A priority patent/BR9601235A/en
Priority to CA002173191A priority patent/CA2173191C/en
Priority to US08/627,290 priority patent/US5653861A/en
Priority to JP08108723A priority patent/JP3098422B2/en
Publication of SE9501287L publication Critical patent/SE9501287L/en
Publication of SE515833C2 publication Critical patent/SE515833C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye

Landscapes

  • Paper (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention relates to a method of producing pulp comprising a step of forming green liquor containing alkali metal sulfide and alkali metal carbonate. The method further comprises a step of electrochemically treating the green liquor to oxidize at least part of the sulfide therein.
SE9501287A 1995-04-06 1995-04-06 Electrochemical oxidation of sulphide in green liquor SE515833C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9501287A SE515833C2 (en) 1995-04-06 1995-04-06 Electrochemical oxidation of sulphide in green liquor
NZ286303A NZ286303A (en) 1995-04-06 1996-04-01 Production of pulp in which green liquor is electrolysed to oxidise at least part of the sulphide content
FI961467A FI110878B (en) 1995-04-06 1996-04-01 Electrochemical process
PT101862A PT101862B (en) 1995-04-06 1996-04-01 ELECTRICITY PROCESS
BR9601235A BR9601235A (en) 1995-04-06 1996-04-01 Electrochemical process of pulp production
CA002173191A CA2173191C (en) 1995-04-06 1996-04-01 Electrochemical process
US08/627,290 US5653861A (en) 1995-04-06 1996-04-04 Electrochemical process
JP08108723A JP3098422B2 (en) 1995-04-06 1996-04-05 Electrochemical method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9501287A SE515833C2 (en) 1995-04-06 1995-04-06 Electrochemical oxidation of sulphide in green liquor

Publications (3)

Publication Number Publication Date
SE9501287D0 true SE9501287D0 (en) 1995-04-06
SE9501287L SE9501287L (en) 1996-10-07
SE515833C2 SE515833C2 (en) 2001-10-15

Family

ID=20397879

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9501287A SE515833C2 (en) 1995-04-06 1995-04-06 Electrochemical oxidation of sulphide in green liquor

Country Status (7)

Country Link
JP (1) JP3098422B2 (en)
BR (1) BR9601235A (en)
CA (1) CA2173191C (en)
FI (1) FI110878B (en)
NZ (1) NZ286303A (en)
PT (1) PT101862B (en)
SE (1) SE515833C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4187826B2 (en) * 1998-05-29 2008-11-26 川崎化成工業株式会社 Method for producing polysulfide by electrolytic oxidation
JP5504818B2 (en) 2009-10-23 2014-05-28 ソニー株式会社 Motion-related computing device, motion-related computing method, program, motion-related playback system

Also Published As

Publication number Publication date
FI110878B (en) 2003-04-15
BR9601235A (en) 1998-01-06
SE515833C2 (en) 2001-10-15
JP3098422B2 (en) 2000-10-16
PT101862B (en) 1998-04-30
FI961467A (en) 1996-10-07
PT101862A (en) 1996-11-29
FI961467A0 (en) 1996-04-01
CA2173191C (en) 2001-06-05
CA2173191A1 (en) 1996-10-07
SE9501287L (en) 1996-10-07
NZ286303A (en) 1997-05-26
JPH08284089A (en) 1996-10-29

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Legal Events

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