SE7803674L - Forfarande for foredling av cellulosamassor - Google Patents

Forfarande for foredling av cellulosamassor

Info

Publication number
SE7803674L
SE7803674L SE7803674A SE7803674A SE7803674L SE 7803674 L SE7803674 L SE 7803674L SE 7803674 A SE7803674 A SE 7803674A SE 7803674 A SE7803674 A SE 7803674A SE 7803674 L SE7803674 L SE 7803674L
Authority
SE
Sweden
Prior art keywords
pulp
range
change
refining
chemical modification
Prior art date
Application number
SE7803674A
Other languages
English (en)
Other versions
SE422818B (sv
Inventor
J A I Lindahl
C G S Svensson
Original Assignee
Modo Chemetics 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 Modo Chemetics Ab filed Critical Modo Chemetics Ab
Priority to SE7803674A priority Critical patent/SE422818B/sv
Priority to NZ189999A priority patent/NZ189999A/xx
Priority to PCT/SE1979/000073 priority patent/WO1979000861A1/en
Priority to ZA791496A priority patent/ZA791496B/xx
Priority to CH1069079A priority patent/CH643902A5/de
Priority to NO791042A priority patent/NO154137C/no
Priority to BR7908799A priority patent/BR7908799A/pt
Priority to DE792945421A priority patent/DE2945421A1/de
Priority to FI791049A priority patent/FI67893C/fi
Priority to AU45668/79A priority patent/AU509369B2/en
Priority to AT0237679A priority patent/AT371861B/de
Priority to ES479108A priority patent/ES479108A1/es
Priority to CA324,586A priority patent/CA1115005A/en
Priority to US06/026,470 priority patent/US4244778A/en
Publication of SE7803674L publication Critical patent/SE7803674L/sv
Priority to EP79900386A priority patent/EP0014713B1/en
Publication of SE422818B publication Critical patent/SE422818B/sv

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
    • D21C9/1026—Other features in bleaching 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • External Artificial Organs (AREA)
SE7803674A 1978-03-31 1978-03-31 Forfarande for foredling av allulosamassa genom blekning eller extrahering SE422818B (sv)

Priority Applications (15)

Application Number Priority Date Filing Date Title
SE7803674A SE422818B (sv) 1978-03-31 1978-03-31 Forfarande for foredling av allulosamassa genom blekning eller extrahering
NZ189999A NZ189999A (en) 1978-03-31 1979-03-26 Refining cellulose pulps by bleaching or extraction
DE792945421A DE2945421A1 (en) 1978-03-31 1979-03-29 A method of refining cellulose pulps
ZA791496A ZA791496B (en) 1978-03-31 1979-03-29 A method of refining cellulose material
CH1069079A CH643902A5 (de) 1978-03-31 1979-03-29 Verfahren zur reinigung von cellulosebreien.
NO791042A NO154137C (no) 1978-03-31 1979-03-29 Fremgangsmaate ved foredling av cellulosemasser.
BR7908799A BR7908799A (pt) 1978-03-31 1979-03-29 Processo para refinacao de polpas de celulose
PCT/SE1979/000073 WO1979000861A1 (en) 1978-03-31 1979-03-29 A method of refining cellulose pulps
FI791049A FI67893C (fi) 1978-03-31 1979-03-29 Foerfarande foer foeraedling av cellulosamassor
AU45668/79A AU509369B2 (en) 1978-03-31 1979-03-30 Bleaching and extraction of cellulosic pulps
AT0237679A AT371861B (de) 1978-03-31 1979-03-30 Verfahren zur veredelung von zellulosestoffen
ES479108A ES479108A1 (es) 1978-03-31 1979-03-30 Procedimiento para refinar pulpas de celulosa.
CA324,586A CA1115005A (en) 1978-03-31 1979-04-02 Process for the chemical refining of cellulose pulp
US06/026,470 US4244778A (en) 1978-03-31 1979-04-02 Process for the chemical refining of cellulose pulp
EP79900386A EP0014713B1 (en) 1978-03-31 1979-11-05 A method of refining cellulose pulps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7803674A SE422818B (sv) 1978-03-31 1978-03-31 Forfarande for foredling av allulosamassa genom blekning eller extrahering

Publications (2)

Publication Number Publication Date
SE7803674L true SE7803674L (sv) 1979-10-01
SE422818B SE422818B (sv) 1982-03-29

Family

ID=20334464

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7803674A SE422818B (sv) 1978-03-31 1978-03-31 Forfarande for foredling av allulosamassa genom blekning eller extrahering

Country Status (15)

Country Link
US (1) US4244778A (sv)
EP (1) EP0014713B1 (sv)
AT (1) AT371861B (sv)
AU (1) AU509369B2 (sv)
BR (1) BR7908799A (sv)
CA (1) CA1115005A (sv)
CH (1) CH643902A5 (sv)
DE (1) DE2945421A1 (sv)
ES (1) ES479108A1 (sv)
FI (1) FI67893C (sv)
NO (1) NO154137C (sv)
NZ (1) NZ189999A (sv)
SE (1) SE422818B (sv)
WO (1) WO1979000861A1 (sv)
ZA (1) ZA791496B (sv)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1151363A (en) * 1979-04-17 1983-08-09 Henri Lemoyne Process for the delignification of unbleached chemical pulp
ZA837927B (en) * 1983-05-23 1985-01-30 Process Evaluation Devel Thermomechanical digestion process using bleachants
DE3610940A1 (de) * 1986-03-04 1987-09-10 Escher Wyss Gmbh Hochtemperatur-hochkonsistenz-schnellbleiche
US4743338A (en) * 1986-05-19 1988-05-10 Kamyr, Inc. Method of removing air from lignocellulosic material by passing the material through conduit paths of different diameters
GB2215350B (en) * 1988-03-16 1992-05-20 Thiokol Morton Inc Process for bleaching mechanical wood pulp
DE4000347C1 (sv) * 1990-01-08 1991-04-25 Mtm Obermaier Gmbh, 6733 Hassloch, De
US5384012A (en) * 1993-02-12 1995-01-24 James River Corporation Of Virginia Process for crosslinking of cellulosic fibers
US5384011A (en) * 1993-02-12 1995-01-24 James River Corporation Of Virginia Process for crosslinking of cellulosic fibers
SE500616C2 (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
JP2862787B2 (ja) * 1994-03-09 1999-03-03 日本製紙株式会社 塗被紙の製造方法
DE4411681A1 (de) * 1994-04-05 1995-10-12 Hoechst Ag Verfahren zur Herstellung niedermolekularer Polysaccharidether
FR2719853B1 (fr) * 1994-05-11 1996-06-21 Atochem Elf Sa Procédé de délignification et de blanchiment d'une pâte à papier chimique.
FR2719854B1 (fr) * 1994-05-11 1996-06-21 Atochem Elf Sa Procédé de préparation de pâtes à papier chimiques délignifiées et blanchies.
SE9402101L (sv) * 1994-06-15 1995-12-16 Moelnlycke Ab Lättavvattnad, bulkig, kemimekanisk massa med låg spet- och finmaterialhalt
WO1997032077A1 (en) * 1996-02-27 1997-09-04 Tetra Laval Holding & Finance S.A. Process for sanitizing post-consumer paper fibers and product formed therefrom
US6375797B1 (en) * 1996-06-20 2002-04-23 Andritz-Ahlstrom Oy Bleaching chemical pulp in a PkDQ-Po Sequence
FI113670B (sv) * 1999-12-09 2004-05-31 Upm Kymmene Corp Förfarande för framställning av tryckpapper
FI113552B (sv) * 1999-12-09 2004-05-14 Upm Kymmene Corp Förfarande för tillverkning av tryckpapper
US6743332B2 (en) * 2001-05-16 2004-06-01 Weyerhaeuser Company High temperature peroxide bleaching of mechanical pulps
WO2005121288A1 (ja) * 2004-06-10 2005-12-22 Ntn Corporation 摺動材料およびすべり軸受
JP5030566B2 (ja) * 2005-12-27 2012-09-19 信越化学工業株式会社 セルロースエーテルの製造方法
JP5030568B2 (ja) * 2005-12-27 2012-09-19 信越化学工業株式会社 アルカリセルロース及びセルロースエーテルの製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA799172A (en) * 1968-11-19 Nardi Franco Equipment for processing of pulps obtained from woods
US2513344A (en) * 1946-09-19 1950-07-04 Buffalo Electro Chem Co Method of bleaching high-density pulp
US2707146A (en) * 1951-08-08 1955-04-26 Scott Paper Co Method of bleaching mechanically disintegrated wood pulp
US2920011A (en) * 1955-03-18 1960-01-05 Waldorf Paper Prod Co Elevated temperature and pressure two stage hypochlorite peroxide pulp bleaching process
US2963395A (en) * 1958-03-31 1960-12-06 Crown Zellerbach Corp Process of bleaching lignocellulosic pulps
US3256614A (en) * 1961-05-29 1966-06-21 D & S Engineering Ltd Plant for drying of finely divided material, especially wood pulp and cellulose
US3255071A (en) * 1963-10-25 1966-06-07 Theodor N Kleinert Process for production of alkali cellulose in the absence of an aqueous liquid phase
SE333299B (sv) * 1967-11-10 1971-03-08 Sunds Ab Foerfarande vid och anordning foer blekning av foeretraedesvis cellulosamassa med gasformigt blekmedel
CA849982A (en) * 1967-12-15 1970-08-25 M. Clayton David Process for producing wood pulp
US4030969A (en) * 1972-06-13 1977-06-21 Defibrator Ab Method of dispersing a bleaching agent into a stream of fibrous cellulosic pulp material in a throttling nozzle
SE415581B (sv) * 1977-04-18 1980-10-13 Mo Och Domsjoe Ab Forfarande for perocidblekning av hogutbytesmassa

Also Published As

Publication number Publication date
ATA237679A (de) 1982-12-15
SE422818B (sv) 1982-03-29
AU4566879A (en) 1979-11-22
CA1115005A (en) 1981-12-29
US4244778A (en) 1981-01-13
ZA791496B (en) 1980-04-30
FI67893C (fi) 1985-06-10
BR7908799A (pt) 1981-08-04
CH643902A5 (de) 1984-06-29
DE2945421C2 (sv) 1989-09-14
FI67893B (fi) 1985-02-28
NO154137B (no) 1986-04-14
WO1979000861A1 (en) 1979-11-01
ES479108A1 (es) 1979-07-01
NZ189999A (en) 1982-03-23
FI791049A (fi) 1979-10-01
DE2945421A1 (en) 1980-12-11
EP0014713A1 (en) 1980-09-03
NO154137C (no) 1986-07-23
AT371861B (de) 1983-08-10
AU509369B2 (en) 1980-05-08
NO791042L (no) 1979-10-02
EP0014713B1 (en) 1984-10-24

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