DE69220853D1 - Ein Verfahren zur Herstellung von Kraftpulpe - Google Patents

Ein Verfahren zur Herstellung von Kraftpulpe

Info

Publication number
DE69220853D1
DE69220853D1 DE69220853T DE69220853T DE69220853D1 DE 69220853 D1 DE69220853 D1 DE 69220853D1 DE 69220853 T DE69220853 T DE 69220853T DE 69220853 T DE69220853 T DE 69220853T DE 69220853 D1 DE69220853 D1 DE 69220853D1
Authority
DE
Germany
Prior art keywords
pulp
sulfide
supply
content
cooking
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 - Lifetime
Application number
DE69220853T
Other languages
German (de)
English (en)
Inventor
Jian E C O Kamyr Inc Jiang
Joe R C O Kamyr Inc Phillips
Brian F C O Kamyr In Greenwood
Robert J C O Kamyr Inc Prough
Kaj Henricson
Bertil C C O Kamyr I Stromberg
Rolf Ryham
James W Smith
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.)
Ahlstrom Machinery Inc
Original Assignee
Ahlstrom Machinery Inc
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 GB919111256A external-priority patent/GB9111256D0/en
Application filed by Ahlstrom Machinery Inc filed Critical Ahlstrom Machinery Inc
Application granted granted Critical
Publication of DE69220853D1 publication Critical patent/DE69220853D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Catalysts (AREA)
  • Artificial Filaments (AREA)
DE69220853T 1991-05-24 1992-05-25 Ein Verfahren zur Herstellung von Kraftpulpe Expired - Lifetime DE69220853D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB919111256A GB9111256D0 (en) 1991-05-24 1991-05-24 Pulping process
US75684991A 1991-09-10 1991-09-10
US78815191A 1991-11-05 1991-11-05

Publications (1)

Publication Number Publication Date
DE69220853D1 true DE69220853D1 (de) 1997-08-21

Family

ID=27265676

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69220853T Expired - Lifetime DE69220853D1 (de) 1991-05-24 1992-05-25 Ein Verfahren zur Herstellung von Kraftpulpe

Country Status (6)

Country Link
EP (1) EP0517689B1 (fi)
JP (1) JPH05163690A (fi)
AT (1) ATE155540T1 (fi)
DE (1) DE69220853D1 (fi)
FI (1) FI921254A0 (fi)
NO (1) NO920692L (fi)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6132556A (en) * 1993-05-04 2000-10-17 Andritz-Ahlstrom Inc. Method of controlling pulp digester pressure via liquor extraction
US5575890A (en) * 1993-05-04 1996-11-19 Kamyr, Inc. Method for selectively increasing the sulfide ion concentration and sulfidity of kraft cooking liquor during kraft cooking of wood
FI102976B1 (fi) * 1994-02-28 1999-03-31 Valtion Teknillinen Menetelmä lisäkeittokemikaalien tuottamiseen ja käyttämiseen sulfaattiprosessissa
US5522958A (en) * 1994-07-18 1996-06-04 Pulp And Paper Research Institute Of Canada Two-stage kraft cooking
US5660686A (en) * 1994-09-02 1997-08-26 Ahlstrom Machinery Inc. Cooking with spent liquor pretreatment of cellulose material
AU2697295A (en) * 1994-09-02 1996-03-27 Kamyr Inc. Continuous kraft cooking with black liquor pretreatment
SE9703365D0 (sv) * 1997-09-18 1997-09-18 Kvaerner Pulping Tech Method in connection with impregnation and digestion of lignocelulosic material
AU3253400A (en) * 1999-05-11 2000-11-30 Air Products And Chemicals Inc. Use of oxidized whiite liquor in a kraft mill digester
US20070240837A1 (en) * 2006-04-13 2007-10-18 Andritz Inc. Hardwood alkaline pulping processes and systems
CA2681464C (en) * 2007-01-15 2017-01-03 Nihon Cellulose Co., Ltd. Pulp production process
CN102695671B (zh) * 2010-01-05 2015-03-11 巴斯夫欧洲公司 用于极高温度的基于多硫化物的传热流体和蓄热流体
FI129362B (fi) * 2017-05-16 2021-12-31 Andritz Oy Menetelmä kemiallisen massan tuottamiseksi

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI44743C (fi) * 1962-09-15 1971-12-10 Dominon Tar & Chemical Syklinen menetelmä selluloosan valmistamiseksi
US5053108A (en) * 1989-06-28 1991-10-01 Kamyr Ab High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips
AU1765892A (en) * 1991-02-06 1992-09-07 A. Ahlstrom Corporation A method of recovering energy and chemicals from black liquor

Also Published As

Publication number Publication date
JPH05163690A (ja) 1993-06-29
NO920692D0 (no) 1992-02-21
NO920692L (no) 1992-11-25
FI921254A0 (fi) 1992-03-24
EP0517689B1 (en) 1997-07-16
EP0517689A1 (en) 1992-12-09
ATE155540T1 (de) 1997-08-15

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Legal Events

Date Code Title Description
8332 No legal effect for de