SE8605120D0 - Sett att bereda sulfidfri alkalilut - Google Patents

Sett att bereda sulfidfri alkalilut

Info

Publication number
SE8605120D0
SE8605120D0 SE8605120A SE8605120A SE8605120D0 SE 8605120 D0 SE8605120 D0 SE 8605120D0 SE 8605120 A SE8605120 A SE 8605120A SE 8605120 A SE8605120 A SE 8605120A SE 8605120 D0 SE8605120 D0 SE 8605120D0
Authority
SE
Sweden
Prior art keywords
sulphide
copper
alkali
oxide
essentially
Prior art date
Application number
SE8605120A
Other languages
English (en)
Other versions
SE8605120L (sv
Inventor
Hakan Bergstroem
Mats-Olov Hedblom
Per Ulmgren
Original Assignee
Alby Klorat 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
Priority claimed from SE8603425A external-priority patent/SE8603425D0/sv
Publication of SE8605120D0 publication Critical patent/SE8605120D0/sv
Priority to SE8605120A priority Critical patent/SE8605120L/sv
Application filed by Alby Klorat Ab filed Critical Alby Klorat Ab
Priority to AR308408A priority patent/AR241105A1/es
Priority to EP87850238A priority patent/EP0258196B1/en
Priority to DE8787850238T priority patent/DE3762636D1/de
Priority to AT87850238T priority patent/ATE52557T1/de
Priority to NZ221321A priority patent/NZ221321A/xx
Priority to CA000544034A priority patent/CA1285353C/en
Priority to NO873400A priority patent/NO873400L/no
Priority to BR878704209A priority patent/BR8704209A/pt
Priority to ES8702388A priority patent/ES2004803A6/es
Priority to FI873520A priority patent/FI873520A/fi
Priority to PT85532A priority patent/PT85532B/pt
Priority to AU76854/87A priority patent/AU589540B2/en
Priority to KR1019870008961A priority patent/KR900004685B1/ko
Publication of SE8605120L publication Critical patent/SE8605120L/sv
Priority to US07/508,546 priority patent/US4981556A/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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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
    • D21C11/0085—Introduction of auxiliary substances into the regenerating system in order to improve the performance of certain steps of the latter, the presence of these substances being confined to the regeneration cycle
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/20—Preparation by reacting oxides or hydroxides with alkali metal salts
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
SE8605120A 1986-08-14 1986-11-28 Sett att bereda sulfidfri alkalilut SE8605120L (sv)

Priority Applications (15)

Application Number Priority Date Filing Date Title
SE8605120A SE8605120L (sv) 1986-08-14 1986-11-28 Sett att bereda sulfidfri alkalilut
AR308408A AR241105A1 (es) 1986-11-28 1987-01-01 Un procedimiento para la preparacion de un liquido alcalino exento de sulfuro
EP87850238A EP0258196B1 (en) 1986-08-14 1987-07-31 A process for the preparation of sulphide-free alkali liquor
DE8787850238T DE3762636D1 (de) 1986-08-14 1987-07-31 Verfahren zur herstellung von alkalilauge ohne sulfidinhalt.
AT87850238T ATE52557T1 (de) 1986-08-14 1987-07-31 Verfahren zur herstellung von alkalilauge ohne sulfidinhalt.
NZ221321A NZ221321A (en) 1986-08-14 1987-08-04 Preparing sulphide-free alkali liquor
CA000544034A CA1285353C (en) 1986-08-14 1987-08-07 Process for the preparation of sulphide-free alkali liquor
NO873400A NO873400L (no) 1986-08-14 1987-08-13 Fremgangsmaate for fremstilling av sulfidfri alkalivaeske.
AU76854/87A AU589540B2 (en) 1986-08-14 1987-08-13 A process for the preparation of sulphide-free alkali liquor
PT85532A PT85532B (pt) 1986-08-14 1987-08-13 Processo para a preparacao de uma lixivia alcalina essencialmente livre de sulfureto a partir de uma fonte de sulfureto alcalino
BR878704209A BR8704209A (pt) 1986-08-14 1987-08-13 Processo para a preparacao de um licor alcalino essencialmente livre de sulfeto a partir de uma fonte de sulfeto alcalino
ES8702388A ES2004803A6 (es) 1986-08-14 1987-08-13 Un procedimiento para preparar un liquido alcalino esencialmente exento de sulfuro
FI873520A FI873520A (fi) 1986-08-14 1987-08-13 Saett att bereda sulfidfri alkalilut.
KR1019870008961A KR900004685B1 (ko) 1986-08-14 1987-08-14 황화물이 없는 알칼리액의 제조방법
US07/508,546 US4981556A (en) 1986-08-14 1990-04-11 Process for the preparation of sulfide-free alkali liquor using copperoxide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8603425A SE8603425D0 (sv) 1986-08-14 1986-08-14 Sett att bereda sulfidfri alkalilut
SE8605120A SE8605120L (sv) 1986-08-14 1986-11-28 Sett att bereda sulfidfri alkalilut

Publications (2)

Publication Number Publication Date
SE8605120D0 true SE8605120D0 (sv) 1986-11-28
SE8605120L SE8605120L (sv) 1988-02-15

Family

ID=26659458

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8605120A SE8605120L (sv) 1986-08-14 1986-11-28 Sett att bereda sulfidfri alkalilut

Country Status (12)

Country Link
US (1) US4981556A (sv)
EP (1) EP0258196B1 (sv)
KR (1) KR900004685B1 (sv)
BR (1) BR8704209A (sv)
CA (1) CA1285353C (sv)
DE (1) DE3762636D1 (sv)
ES (1) ES2004803A6 (sv)
FI (1) FI873520A (sv)
NO (1) NO873400L (sv)
NZ (1) NZ221321A (sv)
PT (1) PT85532B (sv)
SE (1) SE8605120L (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9117936D0 (en) * 1991-08-20 1991-10-09 Canada Inc Production of sodium hydroxide
FI96387C (sv) * 1994-09-19 2001-12-03 Kvaerner Pulping Oy En metod för att avlägsna kväveoksid från cellulosafabrikens rökgaser
US5508018A (en) * 1995-05-02 1996-04-16 Exxon Research And Engineering Company Process for the regeneration of sodium hydroxide from sodium sulfide
US8696889B2 (en) * 2008-10-02 2014-04-15 Exxonmobil Research And Engineering Company Desulfurization of heavy hydrocarbons and conversion of resulting hydrosulfides utilizing a transition metal oxide
US8398848B2 (en) * 2008-10-02 2013-03-19 Exxonmobil Research And Engineering Company Desulfurization of heavy hydrocarbons and conversion of resulting hydrosulfides utilizing copper metal
US8968555B2 (en) * 2008-10-02 2015-03-03 Exxonmobil Research And Engineering Company Desulfurization of heavy hydrocarbons and conversion of resulting hydrosulfides utilizing copper sulfide
RU2674198C1 (ru) * 2017-09-12 2018-12-05 Открытое акционерное общество "Центральный научно-исследовательский институт бумаги" (ОАО "ЦНИИБ") Способ получения целлюлозы для нитрования

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056929A (en) * 1933-05-13 1936-10-06 Brown Co Production of alkaline compounds, sulphuric acid, and other valuable chemicals
US2031844A (en) * 1933-10-26 1936-02-25 Brown Co Manufacture of caustic soda
US2054727A (en) * 1935-02-08 1936-09-15 Lundin Harold Process of making paper pulp
US2164141A (en) * 1936-06-23 1939-06-27 Brown Co Causticization of soluble sulphides
US3909344A (en) * 1973-12-03 1975-09-30 Erco Envirotech Ltd Removal of sodium chloride from pulp mill operations
US3959068A (en) * 1974-10-24 1976-05-25 The Babcock & Wilcox Company Process and apparatus for recovery of sulfur from a polysulfide pulping operation
ZA761255B (en) * 1975-03-11 1977-03-30 Erco Envirotech Ltd Bleachplant operation
US4098639A (en) * 1975-06-17 1978-07-04 Mo Och Domsjo Aktiebolag Process for reducing the requirement of fresh chemicals without increasing emissions in the pulping of cellulosic material
DE2533794A1 (de) * 1975-07-29 1977-02-17 Metallgesellschaft Ag Verfahren zur herstellung von natriumsulfit- und natriumkarbonat- haltigen kochlaugen
FR2384712A1 (fr) * 1977-03-25 1978-10-20 Inst Francais Du Petrole Procede de regeneration de solutions aqueuses de sulfures de sodium, de potassium et/ou d'ammonium
US4409066A (en) * 1978-03-30 1983-10-11 Erco Industries Limited Bleaching procedure using chlorine dioxide and chlorine solutions

Also Published As

Publication number Publication date
CA1285353C (en) 1991-07-02
DE3762636D1 (de) 1990-06-13
EP0258196B1 (en) 1990-05-09
EP0258196A1 (en) 1988-03-02
KR900004685B1 (ko) 1990-07-02
SE8605120L (sv) 1988-02-15
NZ221321A (en) 1989-09-27
NO873400L (no) 1988-02-15
US4981556A (en) 1991-01-01
PT85532B (pt) 1990-05-31
KR880003066A (ko) 1988-05-13
NO873400D0 (no) 1987-08-13
FI873520A0 (fi) 1987-08-13
ES2004803A6 (es) 1989-02-01
FI873520A (fi) 1988-02-15
BR8704209A (pt) 1988-04-12
PT85532A (en) 1987-09-01

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Legal Events

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NAV Patent application has lapsed

Ref document number: 8605120-8

Effective date: 19920626