BR9406830A - Processo e célula eletrolitica para o tratamento de licor branco contendo sulfeto - Google Patents

Processo e célula eletrolitica para o tratamento de licor branco contendo sulfeto

Info

Publication number
BR9406830A
BR9406830A BR9406830A BR9406830A BR9406830A BR 9406830 A BR9406830 A BR 9406830A BR 9406830 A BR9406830 A BR 9406830A BR 9406830 A BR9406830 A BR 9406830A BR 9406830 A BR9406830 A BR 9406830A
Authority
BR
Brazil
Prior art keywords
treatment
electrolytic cell
liquor containing
white liquor
containing sulfide
Prior art date
Application number
BR9406830A
Other languages
English (en)
Inventor
Johan Landfors
Bo Hakansson
Maria Norell
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
Publication of BR9406830A publication Critical patent/BR9406830A/pt

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
    • D21C11/0042—Fractionating or concentration of spent liquors by special methods
    • 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
    • D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
BR9406830A 1993-06-28 1994-06-01 Processo e célula eletrolitica para o tratamento de licor branco contendo sulfeto BR9406830A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9302213A SE9302213L (sv) 1993-06-28 1993-06-28 Framställning av polysulfid genom elektrolys av vitlut som innehåller sulfid
PCT/SE1994/000526 WO1995000701A1 (en) 1993-06-28 1994-06-01 Production of polysulphide by electrolysis of white liquor containing sulphide

Publications (1)

Publication Number Publication Date
BR9406830A true BR9406830A (pt) 1996-04-02

Family

ID=20390427

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9406830A BR9406830A (pt) 1993-06-28 1994-06-01 Processo e célula eletrolitica para o tratamento de licor branco contendo sulfeto

Country Status (9)

Country Link
US (1) US5624545A (pt)
JP (1) JP2864168B2 (pt)
AU (1) AU7086894A (pt)
BR (1) BR9406830A (pt)
CA (1) CA2166083C (pt)
FI (1) FI117563B (pt)
NZ (1) NZ268111A (pt)
SE (1) SE9302213L (pt)
WO (1) WO1995000701A1 (pt)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5536384A (en) * 1995-02-14 1996-07-16 Pulp And Paper Research Institute Of Canada Separation of sulphides from pulping liquors by electrodialysis
US5653861A (en) * 1995-04-06 1997-08-05 Eka Nobel Ab Electrochemical process
WO1997041295A1 (en) * 1996-04-26 1997-11-06 Asahi Glass Company Ltd. Method for producing polysulfides by electrolytic oxidation
DE19742748A1 (de) * 1997-09-27 1999-04-01 Degussa Verfahren zum Delignifizieren und Bleichen von Zellstoffen unter Verwendung elektrochemisch oxidierbarer organischer Verbindungen
US6132590A (en) * 1998-01-09 2000-10-17 Huron Tech Corp Electrolytic process for treating aqueous waste streams
JP4187826B2 (ja) 1998-05-29 2008-11-26 川崎化成工業株式会社 電解酸化による多硫化物の製造方法
US6319358B1 (en) 1998-05-29 2001-11-20 Institue Of Paper Science And Technology Inc. Electrolytic causticizing of smelt from a kraft recovery furnace
JP2000247611A (ja) * 1999-02-26 2000-09-12 Asahi Glass Co Ltd 電解酸化による多硫化物の製造方法
JP4312869B2 (ja) * 1999-02-26 2009-08-12 旭硝子株式会社 電解酸化を用いた多硫化物の製造方法
JP4230612B2 (ja) * 1999-05-28 2009-02-25 日本製紙株式会社 クラフト法パルプ製造プロセスにおける薬品回収方法
AU5109800A (en) * 1999-06-15 2001-01-02 Kawasaki Kasei Chemicals Ltd. Digestion method for pulp
EP1132684A3 (en) * 2000-03-10 2002-05-02 L'air Liquide, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Method and system for lancing gas into an environment with variable entrainment of non-lanced gas
US6866748B2 (en) 2001-06-15 2005-03-15 American Air Liquide, Inc. Process for preparing polysulfides using clarified white liquor
US6875414B2 (en) 2002-01-14 2005-04-05 American Air Liquide, Inc. Polysulfide measurement methods using colormetric techniques
US20040134794A1 (en) * 2002-10-22 2004-07-15 Sundaram V S Meenakshi Systems and methods for generating polysulfides
US20090152123A1 (en) * 2005-07-07 2009-06-18 Applied Intellectual Capital Methods and Apparatus for Generating Oxidizing Agents
JP4975402B2 (ja) * 2006-09-06 2012-07-11 クロリンエンジニアズ株式会社 電解方法
EP1767671B1 (en) 2005-09-26 2012-05-02 CHLORINE ENGINEERS CORP., Ltd. Three-dimensional electrode for electrolysis, ion exchange membrane electrolytic cell and method of electrolysis using the three-dimensional electrode
RU2361026C1 (ru) * 2008-04-07 2009-07-10 Эдуард Львович Аким Способ приготовления раствора для полисульфидной варки древесины
CN102449231B (zh) * 2009-05-26 2014-05-14 日本制纸株式会社 木化纤维素材料的蒸煮法
WO2011069192A1 (en) * 2009-12-08 2011-06-16 The University Of Queensland Treatment of sulfide containing material
CA2860419C (en) 2011-01-12 2020-12-15 Ceramatec, Inc. Electrochemical production of hydrogen
JP6236392B2 (ja) * 2012-10-01 2017-11-22 日本製紙株式会社 多硫化物製造用電解槽による連続電解方法及びそれを実施する電解装置
SE538784C2 (sv) * 2015-04-09 2016-11-22 Valmet Oy Method for polysulfide production in a kraft pulp mill
WO2016201585A1 (en) 2015-06-19 2016-12-22 Bio-H2-Gen Inc. Method for producing hydrogen gas from aqueous hydrogen sulphide
US20180141836A1 (en) * 2016-11-16 2018-05-24 Bo Hu Electrochemical removal of sulfide species and phosphorus species

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE160736C1 (pt) *
US3249522A (en) * 1965-02-23 1966-05-03 Socony Mobil Oil Co Inc Electrochemical oxidation of hydrogen sulfide
US3409520A (en) * 1965-09-23 1968-11-05 Mobil Oil Corp Removal of hydrogen sulfide from a hydrogen sulfide-hydrocarbon gas mixture by electrolysis
US4024229A (en) * 1970-11-06 1977-05-17 The Mead Corporation Production of polysulfide with PTFE coated catalyst
US4519881A (en) * 1984-06-25 1985-05-28 Standard Oil Company (Indiana) Regeneration of alkaline treating agents
US4717450A (en) * 1985-08-19 1988-01-05 University Of British Columbia Removal of chloride from process solutions
US4765873A (en) * 1985-12-06 1988-08-23 The Dow Chemical Company Continuous process for the removal of hydrogen sulfide from a gaseous stream
US5082526A (en) * 1989-01-23 1992-01-21 Pulp And Paper Research Institute Of Canada Process of producing kraft pulping liquor by the oxidation of white liquor in the presence of lime mud
CA1335976C (en) * 1989-05-31 1995-06-20 Mahmoud Kamran Azarniouch Recovery of naoh and other values from spent liquors and bleach plant effluents

Also Published As

Publication number Publication date
JP2864168B2 (ja) 1999-03-03
WO1995000701A1 (en) 1995-01-05
FI956205A0 (fi) 1995-12-22
SE9302213D0 (sv) 1993-06-28
NZ268111A (en) 1996-06-25
FI117563B (fi) 2006-11-30
CA2166083C (en) 2000-09-05
JPH08512099A (ja) 1996-12-17
AU7086894A (en) 1995-01-17
US5624545A (en) 1997-04-29
FI956205A7 (fi) 1995-12-22
SE501204C2 (sv) 1994-12-05
CA2166083A1 (en) 1995-01-05
SE9302213L (sv) 1994-12-05

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 01/06/2014