ES2159385T3 - DISCONTINUOUS PROCESS TO PREPARE IMPROVED KRAFT PASTE. - Google Patents

DISCONTINUOUS PROCESS TO PREPARE IMPROVED KRAFT PASTE.

Info

Publication number
ES2159385T3
ES2159385T3 ES97660041T ES97660041T ES2159385T3 ES 2159385 T3 ES2159385 T3 ES 2159385T3 ES 97660041 T ES97660041 T ES 97660041T ES 97660041 T ES97660041 T ES 97660041T ES 2159385 T3 ES2159385 T3 ES 2159385T3
Authority
ES
Spain
Prior art keywords
derivative
discontinuous process
green
prepare improved
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
ES97660041T
Other languages
Spanish (es)
Inventor
Panu Tikka
Mikael Svedman
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.)
Metso Paper Pori Oy
Original Assignee
Metso Chemical Pulping 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 Metso Chemical Pulping Oy filed Critical Metso Chemical Pulping Oy
Application granted granted Critical
Publication of ES2159385T3 publication Critical patent/ES2159385T3/en
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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Reinforced Plastic Materials (AREA)
  • Secondary Cells (AREA)

Abstract

SE DESCRIBE UN PROCEDIMIENTO POR LOTES MEJORADO, PARA LA PREPARACION DE CELULOSA KRAFT, EN EL QUE SE INTRODUCE UNA FRACCION DE LEJIA VERDE O UN DERIVADO DE LA MISMA EN LA FASE DE IMPREGNACION Y/O PRETRATAMIENTO. EL DERIVADO PUEDE SER AGUAS MADRES PROCEDENTES DE LA CRISTALIZACION DE CARBONATO A PARTIR DE LEJIA VERDE. DICHO PROCEDIMIENTO FACILITA LA UTILIZACION DE CONDICIONES SUAVES EN LA FASE FINAL DE COCIDO ASI COMO PERIODOS CORTOS DE COCIDO, PRODUCIENDO UNA CELULOSA DE MAYOR CALIDAD, UN ELEVADO RENDIMIENTO DE PRODUCCION Y UN BUEN MANTENIMIENTO DEL EQUILIBRIO DE LOS PRODUCTOS QUIMICOS EN LA AMASADORA.AN IMPROVED BATCH PROCEDURE IS DESCRIBED, FOR THE PREPARATION OF CELLULOSE KRAFT, IN WHICH A GREEN BLEED FRACTION OR A DERIVATIVE OF THE SAME IS INTRODUCED IN THE IMPREGNATION AND / OR PRE-TREATMENT PHASE. THE DERIVATIVE MAY BE MOTHER WATER FROM CARBON CRYSTALLIZATION FROM GREEN LYE. THIS PROCEDURE FACILITATES THE USE OF SOFT CONDITIONS IN THE FINAL COOKING PHASE AND SHORT PERIODS OF COOKING, PRODUCING A HIGHER QUALITY CELL, A HIGH PRODUCTION PERFORMANCE AND A GOOD MAINTENANCE OF THE BALANCER OF THE BALANCE PRODUCER.

ES97660041T 1996-05-30 1997-04-16 DISCONTINUOUS PROCESS TO PREPARE IMPROVED KRAFT PASTE. Expired - Lifetime ES2159385T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI962260A FI105929B (en) 1996-05-30 1996-05-30 Improved process for batch production of sulfate cellulose

Publications (1)

Publication Number Publication Date
ES2159385T3 true ES2159385T3 (en) 2001-10-01

Family

ID=8546116

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97660041T Expired - Lifetime ES2159385T3 (en) 1996-05-30 1997-04-16 DISCONTINUOUS PROCESS TO PREPARE IMPROVED KRAFT PASTE.

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 (12)

* 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
US7867360B2 (en) * 2004-07-13 2011-01-11 Fpinnovations Generation of active polysulphide with manganese and bismuth catalysts
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
SE0702874L (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
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
KR20110123184A (en) 2010-05-06 2011-11-14 바히아 스페셜티 셀룰로스 에스에이 Method and system for producing high alpha dissolving pulp
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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811995A (en) * 1972-09-05 1974-05-21 Westvaco Corp Method of high yield semichemical pulp production
JPS55103386A (en) * 1979-01-29 1980-08-07 Sanyo Kokusaku Pulp Co Two stage sulphate digesting method
JPS6059189A (en) * 1983-08-24 1985-04-05 ベロイト　コ−ポレ−ション Multi-stage digestion of wood pulp
SU1645323A1 (en) * 1989-04-05 1991-04-30 Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности Method for cellulose producing
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
FI962260A0 (en) 1996-05-30
FI962260L (en) 1997-12-01
JPH1053989A (en) 1998-02-24
DE69705160T2 (en) 2002-05-16
ATE202167T1 (en) 2001-06-15
FI105929B (en) 2000-10-31
RU2128259C1 (en) 1999-03-27
CA2203096A1 (en) 1997-11-30
CN1170795A (en) 1998-01-21
CA2203096C (en) 2005-06-28
AU721440B2 (en) 2000-07-06
PT810321E (en) 2001-10-31
NO972456D0 (en) 1997-05-29
EP0810321A1 (en) 1997-12-03
ID18445A (en) 1998-04-09
NZ314898A (en) 1998-06-26
CN1109160C (en) 2003-05-21
AU2016297A (en) 1997-12-04
BR9703156A (en) 1998-10-27
DE69705160D1 (en) 2001-07-19
ZA973887B (en) 1998-02-25
NO972456L (en) 1997-12-01
EP0810321B1 (en) 2001-06-13

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