FI962260A0 - Improved batch cooking method for sulphate cellulose Improved batch cooking method for making sulphate cellulose - Google Patents

Improved batch cooking method for sulphate cellulose Improved batch cooking method for making sulphate cellulose

Info

Publication number
FI962260A0
FI962260A0 FI962260A FI962260A FI962260A0 FI 962260 A0 FI962260 A0 FI 962260A0 FI 962260 A FI962260 A FI 962260A FI 962260 A FI962260 A FI 962260A FI 962260 A0 FI962260 A0 FI 962260A0
Authority
FI
Finland
Prior art keywords
cooking method
improved batch
batch cooking
sulphate cellulose
making
Prior art date
Application number
FI962260A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI105929B (en
FI962260A (en
Inventor
Panu Tikka
Mikael Svedman
Original Assignee
Sunds Defibrator Pori Oy
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 Sunds Defibrator Pori Oy filed Critical Sunds Defibrator Pori Oy
Publication of FI962260A0 publication Critical patent/FI962260A0/en
Priority to FI962260A priority Critical patent/FI105929B/en
Priority to AT97660041T priority patent/ATE202167T1/en
Priority to ES97660041T priority patent/ES2159385T3/en
Priority to EP97660041A priority patent/EP0810321B1/en
Priority to PT97660041T priority patent/PT810321E/en
Priority to DE69705160T priority patent/DE69705160T2/en
Priority to CA002203096A priority patent/CA2203096C/en
Priority to ZA9703887A priority patent/ZA973887B/en
Priority to AU20162/97A priority patent/AU721440B2/en
Priority to BR9703156A priority patent/BR9703156A/en
Priority to IDP971703A priority patent/ID18445A/en
Priority to NZ314898A priority patent/NZ314898A/en
Priority to RU97108781A priority patent/RU2128259C1/en
Priority to CN97113050A priority patent/CN1109160C/en
Priority to NO972456A priority patent/NO972456L/en
Priority to JP9158156A priority patent/JPH1053989A/en
Publication of FI962260A publication Critical patent/FI962260A/en
Application granted granted Critical
Publication of FI105929B publication Critical patent/FI105929B/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • 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

Abstract

An improved batch process for preparing kraft pulp is disclosed, wherein a portion of green liquor or a derivative thereof is introduced in the impregnation or/and pretreatment stage. The derivative may be mother liquor originating from crystallization of carbonate from green liquor. The procedure facilitates the use of mild conditions in the final cooking stage and short cooking periods and results in higher pulp quality, high production output and good maintenance of the balance of chemicals in the mill. <IMAGE>
FI962260A 1996-05-30 1996-05-30 An improved batch process for the preparation of sulphate cellulose FI105929B (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
FI962260A FI105929B (en) 1996-05-30 1996-05-30 An improved batch process for the preparation of sulphate cellulose
AT97660041T ATE202167T1 (en) 1996-05-30 1997-04-16 DISCONTINUOUS PROCESS FOR PRODUCING IMPROVED FUEL PULP
ES97660041T ES2159385T3 (en) 1996-05-30 1997-04-16 DISCONTINUOUS PROCESS TO PREPARE IMPROVED KRAFT PASTE.
EP97660041A EP0810321B1 (en) 1996-05-30 1997-04-16 Batch process for preparing improved kraft pulp
PT97660041T PT810321E (en) 1996-05-30 1997-04-16 PROCESS OF DISCONTINUOUS LOADS FOR THE PREPARATION OF APPROPRIATED KRAFT PASTA
DE69705160T DE69705160T2 (en) 1996-05-30 1997-04-16 Discontinuous process for the production of improved kraft pulp
CA002203096A CA2203096C (en) 1996-05-30 1997-04-18 Batch process for preparing improved kraft pulp
ZA9703887A ZA973887B (en) 1996-05-30 1997-05-06 Batch process for preparing improved kraft pulp.
AU20162/97A AU721440B2 (en) 1996-05-30 1997-05-09 Batch process for preparing improved kraft pulp
BR9703156A BR9703156A (en) 1996-05-30 1997-05-14 Improved intermittent process for preparing kraft pulp
IDP971703A ID18445A (en) 1996-05-30 1997-05-21 COLLECTION OF THE PROCESS FOR THE MAKING OF THE USED KRAFT
NZ314898A NZ314898A (en) 1996-05-30 1997-05-26 Process for preparing kraft pulp by treating the lignin-containing cellulosic material with recycled pulping process liquids, uncausticized cooking liquor and causticized white liquor
RU97108781A RU2128259C1 (en) 1996-05-30 1997-05-29 Periodic process of production of kraft pulp (versions)
CN97113050A CN1109160C (en) 1996-05-30 1997-05-29 Batch process for preparing improved kraft pulp
NO972456A NO972456L (en) 1996-05-30 1997-05-29 Process for batch production of power mass
JP9158156A JPH1053989A (en) 1996-05-30 1997-05-30 Batching for producing improved kraft pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI962260 1996-05-30
FI962260A FI105929B (en) 1996-05-30 1996-05-30 An improved batch process for the preparation of sulphate cellulose

Publications (3)

Publication Number Publication Date
FI962260A0 true FI962260A0 (en) 1996-05-30
FI962260A FI962260A (en) 1997-12-01
FI105929B FI105929B (en) 2000-10-31

Family

ID=8546116

Family Applications (1)

Application Number Title Priority Date Filing Date
FI962260A FI105929B (en) 1996-05-30 1996-05-30 An improved batch process for the preparation of sulphate cellulose

Country Status (16)

Country Link
EP (1) EP0810321B1 (en)
JP (1) JPH1053989A (en)
CN (1) CN1109160C (en)
AT (1) ATE202167T1 (en)
AU (1) AU721440B2 (en)
BR (1) BR9703156A (en)
CA (1) CA2203096C (en)
DE (1) DE69705160T2 (en)
ES (1) ES2159385T3 (en)
FI (1) FI105929B (en)
ID (1) ID18445A (en)
NO (1) NO972456L (en)
NZ (1) NZ314898A (en)
PT (1) PT810321E (en)
RU (1) RU2128259C1 (en)
ZA (1) ZA973887B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6103057A (en) * 1997-06-11 2000-08-15 Fagerlund; Bertil K. Kraft digesting process wherein a vapor interface is formed by withdrawing hot cooking liquor
FI120361B (en) * 2003-12-31 2009-09-30 Gl & V Finance Hungary Kft Batch cooking process for the production of kraft pulp
JP5207191B2 (en) * 2006-05-19 2013-06-12 ザ リサーチ ファンデーション オブ ステート ユニヴァーシティ オブ ニューヨーク Method for carbonate pretreatment and pulping of cellulosic materials
SE531632C2 (en) * 2007-12-20 2009-06-09 Metso Fiber Karlstad Ab Process of manufacture of sulphate pulp in which hemicelluloses are recycled
AU2010202496B2 (en) * 2010-05-04 2015-04-16 Bahia Specialty Cellulose Sa Method and system for high alpha dissolving pulp production
RU2535804C2 (en) * 2010-05-04 2014-12-20 Байа Спешалти Сельюлоз Са Method and system of producing soluble cellulose mass with high content of alpha-cellulose
KR20110123184A (en) 2010-05-06 2011-11-14 바히아 스페셜티 셀룰로스 에스에이 Method and system for high alpha dissolving pulp production
ES2525263T3 (en) * 2010-05-04 2014-12-19 Bahia Specialty Cellulose Sa Procedure and treatment system for paper pulp using cold caustic extraction with reuse of alkaline filtrate
EP2592186A1 (en) * 2011-11-08 2013-05-15 Södra Cell AB Kraft pulping process
CN104452389B (en) * 2014-11-04 2017-02-15 中国轻工业南宁设计工程有限公司 Energy-saving pulping cooking sequence interlock control system
CN104988781B (en) * 2015-08-11 2017-01-18 湛江晨鸣浆纸有限公司 Wood chip pulping process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55103386A (en) * 1979-01-29 1980-08-07 Sanyo Kokusaku Pulp Co Two stage sulphate digesting method
FI92224C (en) * 1991-06-28 1994-10-10 Sunds Defibrator Rauma Oy Batch process for the production of cogeneration
GB9117936D0 (en) * 1991-08-20 1991-10-09 Canada Inc Production of sodium hydroxide
SE500748C2 (en) * 1992-10-12 1994-08-22 Bertil Pettersson Chemical recycling process in a sulphate pulp mill for the production of a high-sulfide white liquor and a low-sulfide white liquor
FI95608B (en) * 1994-06-17 1995-11-15 Ahlstroem Oy Process for preparing coke liquor by crystallization of green liquor
US5674359A (en) * 1995-02-08 1997-10-07 Ahlstrom Machinery Inc. Continuous cooking of cellulosic fibrous material with cold alkali impregnation

Also Published As

Publication number Publication date
CN1170795A (en) 1998-01-21
ZA973887B (en) 1998-02-25
DE69705160T2 (en) 2002-05-16
AU2016297A (en) 1997-12-04
EP0810321A1 (en) 1997-12-03
CA2203096C (en) 2005-06-28
AU721440B2 (en) 2000-07-06
FI105929B (en) 2000-10-31
PT810321E (en) 2001-10-31
NO972456D0 (en) 1997-05-29
CN1109160C (en) 2003-05-21
BR9703156A (en) 1998-10-27
NO972456L (en) 1997-12-01
ATE202167T1 (en) 2001-06-15
NZ314898A (en) 1998-06-26
FI962260A (en) 1997-12-01
JPH1053989A (en) 1998-02-24
EP0810321B1 (en) 2001-06-13
DE69705160D1 (en) 2001-07-19
ES2159385T3 (en) 2001-10-01
ID18445A (en) 1998-04-09
RU2128259C1 (en) 1999-03-27
CA2203096A1 (en) 1997-11-30

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Legal Events

Date Code Title Description
MA Patent expired