FI752463A - - Google Patents

Info

Publication number
FI752463A
FI752463A FI752463A FI752463A FI752463A FI 752463 A FI752463 A FI 752463A FI 752463 A FI752463 A FI 752463A FI 752463 A FI752463 A FI 752463A FI 752463 A FI752463 A FI 752463A
Authority
FI
Finland
Application number
FI752463A
Other languages
Finnish (fi)
Other versions
FI53141B (sv
FI53141C (sv
Inventor
Jan Janson
Original Assignee
Keskuslaboratorio
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 filed Critical Keskuslaboratorio
Priority to FI752463A priority Critical patent/FI53141C/fi
Priority to NZ181792A priority patent/NZ181792A/xx
Priority to BR7605508A priority patent/BR7605508A/pt
Priority to AU17122/76A priority patent/AU499100B2/en
Priority to NO762969A priority patent/NO150807C/no
Priority to US05/719,139 priority patent/US4116759A/en
Priority to JP10375076A priority patent/JPS6029796B2/ja
Priority to SE7609675A priority patent/SE7609675L/sv
Priority to CA260,318A priority patent/CA1087355A/en
Publication of FI752463A publication Critical patent/FI752463A/fi
Publication of FI53141B publication Critical patent/FI53141B/fi
Application granted granted Critical
Publication of FI53141C publication Critical patent/FI53141C/fi

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)
FI752463A 1975-09-02 1975-09-02 FI53141C (sv)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI752463A FI53141C (sv) 1975-09-02 1975-09-02
NZ181792A NZ181792A (en) 1975-09-02 1976-08-17 Regeneration by autocaustisation of liquor for delignification or alkali treatment of pulp
BR7605508A BR7605508A (pt) 1975-09-02 1976-08-23 Preparacao de solucao para delignificacao ou tratamento de alcali por autocaustificacao,e preparacao de polpa com dita solucao
AU17122/76A AU499100B2 (en) 1975-09-02 1976-08-25 Regeneration of spent delignification liquor
NO762969A NO150807C (no) 1975-09-02 1976-08-30 Fremgangsmaate til regenerering ved forbrenning av alkalisk avlut fra delignifisering av trevirke eller masse
US05/719,139 US4116759A (en) 1975-09-02 1976-08-31 Preparation of liquor for delignification or alkali treatment by autocaustization, and the preparation of pulp with this liquor
JP10375076A JPS6029796B2 (ja) 1975-09-02 1976-09-01 アルカリパルプ化又はアルカリ標白方法。
SE7609675A SE7609675L (sv) 1975-09-02 1976-09-01 Framstellning av lut for delignifiering eller alkalibehandling genom autokausticering samt framstellning av massa med sadan lut
CA260,318A 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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI752463A FI53141C (sv) 1975-09-02 1975-09-02

Publications (3)

Publication Number Publication Date
FI752463A true FI752463A (sv) 1977-03-03
FI53141B FI53141B (sv) 1977-10-31
FI53141C FI53141C (sv) 1978-02-10

Family

ID=8509408

Family Applications (1)

Application Number Title Priority Date Filing Date
FI752463A FI53141C (sv) 1975-09-02 1975-09-02

Country Status (8)

Country Link
US (1) US4116759A (sv)
AU (1) AU499100B2 (sv)
BR (1) BR7605508A (sv)
CA (1) CA1087355A (sv)
FI (1) FI53141C (sv)
NO (1) NO150807C (sv)
NZ (1) NZ181792A (sv)
SE (1) SE7609675L (sv)

Families Citing this family (11)

* 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
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
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
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 (sv) * 2002-01-23 2005-03-31 Rinheat Oy Förfarande för blekning av en mekaniskt defibrerad massa
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 (sv) * 2009-08-18 2014-12-15 Metsä Board Oyj Förfarande för framställning av natriumhydroxid från en avfallsström av fibermassaproduktion
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 (sv) * 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 (sv) * 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

Also Published As

Publication number Publication date
NO762969L (sv) 1977-03-03
NO150807B (no) 1984-09-10
NZ181792A (en) 1979-01-11
BR7605508A (pt) 1977-08-16
SE7609675L (sv) 1977-03-03
AU499100B2 (en) 1979-04-05
US4116759A (en) 1978-09-26
CA1087355A (en) 1980-10-14
FI53141B (sv) 1977-10-31
FI53141C (sv) 1978-02-10
NO150807C (no) 1985-01-02
AU1712276A (en) 1978-03-02

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: A. AHLSTROEM OSAKEYHTIOE