CA1087355A - Preparation of liquor for delignification or alkali treatment by autocaustisation and the preparation of pulp with this liquor - Google Patents

Preparation of liquor for delignification or alkali treatment by autocaustisation and the preparation of pulp with this liquor

Info

Publication number
CA1087355A
CA1087355A CA260,318A CA260318A CA1087355A CA 1087355 A CA1087355 A CA 1087355A CA 260318 A CA260318 A CA 260318A CA 1087355 A CA1087355 A CA 1087355A
Authority
CA
Canada
Prior art keywords
liquor
alkaline
salt
bleaching
pulp
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
Application number
CA260,318A
Other languages
English (en)
French (fr)
Inventor
Jan Janson
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.)
KESKUSLABORATORIO - CENTRALLABORATORIUM Oy AB
Original Assignee
KESKUSLABORATORIO - CENTRALLABORATORIUM Oy 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 KESKUSLABORATORIO - CENTRALLABORATORIUM Oy AB filed Critical KESKUSLABORATORIO - CENTRALLABORATORIUM Oy AB
Application granted granted Critical
Publication of CA1087355A publication Critical patent/CA1087355A/en
Expired 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
    • 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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2
    • 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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
CA260,318A 1975-09-02 1976-09-01 Preparation of liquor for delignification or alkali treatment by autocaustisation and the preparation of pulp with this liquor Expired CA1087355A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI752463 1975-09-02
FI752463A FI53141C (US06633782-20031014-M00005.png) 1975-09-02 1975-09-02

Publications (1)

Publication Number Publication Date
CA1087355A true CA1087355A (en) 1980-10-14

Family

ID=8509408

Family Applications (1)

Application Number Title Priority Date Filing Date
CA260,318A Expired CA1087355A (en) 1975-09-02 1976-09-01 Preparation of liquor for delignification or alkali treatment by autocaustisation and the preparation of pulp with this liquor

Country Status (8)

Country Link
US (1) US4116759A (US06633782-20031014-M00005.png)
AU (1) AU499100B2 (US06633782-20031014-M00005.png)
BR (1) BR7605508A (US06633782-20031014-M00005.png)
CA (1) CA1087355A (US06633782-20031014-M00005.png)
FI (1) FI53141C (US06633782-20031014-M00005.png)
NO (1) NO150807C (US06633782-20031014-M00005.png)
NZ (1) NZ181792A (US06633782-20031014-M00005.png)
SE (1) SE7609675L (US06633782-20031014-M00005.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6294048B1 (en) 1998-06-01 2001-09-25 U.S. Borax Inc. Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate
US6348128B1 (en) 1998-06-01 2002-02-19 U.S. Borax Inc. Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248662A (en) * 1979-01-22 1981-02-03 The Black Clawson Company Oxygen pulping with recycled liquor
US6635147B1 (en) * 2000-05-14 2003-10-21 U.S. Borax Inc. Method for analyzing boron-containing alkaline pulping liquors
EP1290272A1 (en) 2000-05-16 2003-03-12 Massachusetts Institute of Technology Thermal conversion of biomass to valuable fuels, chemical feedstocks and chemicals
FI115227B (fi) * 2002-01-23 2005-03-31 Rinheat Oy Menetelmä mekaanisesti kuidutetun massan valkaisemiseksi
SE0202711D0 (sv) * 2002-09-12 2002-09-12 Kiram Ab Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali
US20050076568A1 (en) * 2003-10-09 2005-04-14 Stigsson Lars Lennart Partial oxidation of cellulose spent pulping liquor
CN101066516B (zh) * 2007-06-06 2011-04-20 华东理工大学 一种由硼酸盐组成的脱碳溶液
FI124685B (fi) * 2009-08-18 2014-12-15 Metsä Board Oyj Menetelmä natriumhydroksidin tuottamiseksi kuitumassan valmistuksen jätevirrasta
CN114763680B (zh) * 2021-01-15 2024-01-30 中国石油天然气股份有限公司 从木质纤维素原料中去除木质素的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1730383A (en) * 1929-10-08 of berlin
US1643826A (en) * 1923-12-22 1927-09-27 Bertrand S Summers Process for making paper pulp
BE379996A (US06633782-20031014-M00005.png) * 1930-07-24
US1935580A (en) * 1930-09-06 1933-11-14 Brown Co Processing of cellulose fiber
US2601110A (en) * 1945-06-14 1952-06-17 Ontario Paper Co Ltd Pulping lignocellulose with sodium aluminate
CA553349A (en) * 1950-10-04 1958-02-18 C. Harris George Pulping process
CA632280A (en) * 1958-07-02 1961-12-05 Kimberly-Clark Corporation Manufacture of bleached cellulosic products resistant to brightness reversion
GB1229269A (US06633782-20031014-M00005.png) * 1968-02-02 1971-04-21
US3661699A (en) * 1970-12-21 1972-05-09 American Cyanamid Co Bleaching of lignin-containing cellulose materials such as pulp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6294048B1 (en) 1998-06-01 2001-09-25 U.S. Borax Inc. Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate
US6348128B1 (en) 1998-06-01 2002-02-19 U.S. Borax Inc. Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition
US6663749B2 (en) 1998-06-01 2003-12-16 U.S. Borax Inc. Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with borate

Also Published As

Publication number Publication date
BR7605508A (pt) 1977-08-16
FI53141B (US06633782-20031014-M00005.png) 1977-10-31
NO150807B (no) 1984-09-10
SE7609675L (sv) 1977-03-03
US4116759A (en) 1978-09-26
AU1712276A (en) 1978-03-02
FI53141C (US06633782-20031014-M00005.png) 1978-02-10
NO762969L (US06633782-20031014-M00005.png) 1977-03-03
AU499100B2 (en) 1979-04-05
NZ181792A (en) 1979-01-11
FI752463A (US06633782-20031014-M00005.png) 1977-03-03
NO150807C (no) 1985-01-02

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Legal Events

Date Code Title Description
MKEX Expiry