FI862439A - Foerfarande foer framstaellning av cellulosamassa. - Google Patents

Foerfarande foer framstaellning av cellulosamassa. Download PDF

Info

Publication number
FI862439A
FI862439A FI862439A FI862439A FI862439A FI 862439 A FI862439 A FI 862439A FI 862439 A FI862439 A FI 862439A FI 862439 A FI862439 A FI 862439A FI 862439 A FI862439 A FI 862439A
Authority
FI
Finland
Prior art keywords
cellulosamassa
foerfarande foer
foer framstaellning
framstaellning
foerfarande
Prior art date
Application number
FI862439A
Other languages
English (en)
Finnish (fi)
Other versions
FI862439A0 (fi
Inventor
Ants Teder
Leelo Olm
Jan-Erik Wiken
Original Assignee
Svenska Traeforskningsinst
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 Svenska Traeforskningsinst filed Critical Svenska Traeforskningsinst
Publication of FI862439A publication Critical patent/FI862439A/fi
Publication of FI862439A0 publication Critical patent/FI862439A0/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • D21C3/12—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites sodium bisulfite
    • 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
    • D21C3/222—Use of compounds accelerating the pulping processes
FI862439A 1984-10-10 1986-06-06 Foerfarande foer framstaellning av cellulosamassa. FI862439A0 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8405061A SE453841C (sv) 1984-10-10 1984-10-10 Framstaellning av cellulosamassa med sulfit-sulfidkokvaetska
PCT/SE1985/000321 WO1986002393A1 (en) 1984-10-10 1985-08-29 Process of making cellulose pulp

Publications (2)

Publication Number Publication Date
FI862439A true FI862439A (fi) 1986-06-06
FI862439A0 FI862439A0 (fi) 1986-06-06

Family

ID=20357301

Family Applications (1)

Application Number Title Priority Date Filing Date
FI862439A FI862439A0 (fi) 1984-10-10 1986-06-06 Foerfarande foer framstaellning av cellulosamassa.

Country Status (10)

Country Link
US (1) US4786365A (sv)
JP (1) JPS62500390A (sv)
AU (1) AU4805585A (sv)
CA (1) CA1262503A (sv)
DE (2) DE3590512C2 (sv)
FI (1) FI862439A0 (sv)
FR (1) FR2571393B1 (sv)
NZ (1) NZ213768A (sv)
SE (1) SE453841C (sv)
WO (1) WO1986002393A1 (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405496A (en) * 1989-11-23 1995-04-11 Chemrec Ab Process for the preparation of cooking liquors having high sulphidity for sulphate pulp cooking
US20020062935A1 (en) * 1995-12-27 2002-05-30 Weyerhaeuser Company Paper and absorbent products with reduced pitch content
NZ530225A (en) * 2001-06-29 2006-07-28 Voith Paper Fiber Systems Gmbh A Method for delignifying lignocellulosic raw materials
DE102007022751A1 (de) * 2007-05-11 2008-11-13 Voith Patent Gmbh Ablauge eines Sulfitaufschlusses
CN109537342A (zh) * 2018-11-08 2019-03-29 福建省青山纸业股份有限公司 一种添加亚硫酸钠的硫酸盐制浆工艺

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE309181C (de) * 1916-08-06 1922-06-15 Carl Alfred Braun Verfahren zur Erzeugung von Halbzellstoffen aus stark verholzten Pflanzen, wie Holz usw. sowie Ganzzellstoffen oder verspinnbaren Textilfasern aus schwach verholzten Pflanzen wie Jute, Manilahanf, Schilf, Typha, Brennesseln usw.
US1860803A (en) * 1926-07-03 1932-05-31 Bradley Mckeefe Corp Production of pulp, etc
US1974751A (en) * 1934-01-06 1934-09-25 Brown Co Chemical pulping process
FR1005988A (fr) * 1947-10-24 1952-04-17 Procédé d'extraction de cellulose à partir des végétaux
DE1198666B (de) * 1961-10-20 1965-08-12 Metallgesellschaft Ag Verfahren zur Erzeugung von Zellstoff
JPS51112903A (en) * 1975-03-26 1976-10-05 Honshu Paper Co Ltd Process for digesting lignocellulose material with sulphites
JPS5143403A (en) * 1974-10-09 1976-04-14 Honshu Paper Co Ltd Arukariparupuno seizohoho
CA1073161A (en) * 1975-09-05 1980-03-11 Canadian Industries Limited Delignification process
ZA773044B (en) * 1976-06-02 1978-04-26 Australian Paper Manufacturers Improvements in pulping processes
CA1110413A (en) * 1977-12-14 1981-10-13 Oji Paper Co., Ltd. Process for pulping lignocellulosic material
JPS55142785A (en) * 1979-04-26 1980-11-07 Oji Paper Co Digestion of lignocellulose material

Also Published As

Publication number Publication date
AU4805585A (en) 1986-05-02
JPH0215669B2 (sv) 1990-04-12
CA1262503A (en) 1989-10-31
NZ213768A (en) 1988-07-28
SE8405061L (sv) 1986-04-11
DE3590512T1 (de) 1986-09-18
DE3590512C2 (sv) 1988-12-01
FR2571393A1 (fr) 1986-04-11
SE453841C (sv) 1990-04-30
SE453841B (sv) 1988-03-07
FR2571393B1 (fr) 1988-10-28
WO1986002393A1 (en) 1986-04-24
US4786365A (en) 1988-11-22
FI862439A0 (fi) 1986-06-06
JPS62500390A (ja) 1987-02-19
SE8405061D0 (sv) 1984-10-10

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: SVENSKA TRAEFORSKNINGSINSTITUTET