CA1018707A - Pretreatment of lignocellulosic material to facilitate oxygen gas delignification - Google Patents

Pretreatment of lignocellulosic material to facilitate oxygen gas delignification

Info

Publication number
CA1018707A
CA1018707A CA175,525A CA175525A CA1018707A CA 1018707 A CA1018707 A CA 1018707A CA 175525 A CA175525 A CA 175525A CA 1018707 A CA1018707 A CA 1018707A
Authority
CA
Canada
Prior art keywords
pretreatment
oxygen gas
lignocellulosic material
facilitate oxygen
gas delignification
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
CA175,525A
Other languages
French (fr)
Other versions
CA175525S (en
Inventor
Hans O. Samuelson
Sture Hagglund
Leif Smedman
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.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo 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 Mo och Domsjo AB filed Critical Mo och Domsjo AB
Application granted granted Critical
Publication of CA1018707A publication Critical patent/CA1018707A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/263—Multistage processes at least one stage being in presence of oxygen
CA175,525A 1972-07-05 1973-07-03 Pretreatment of lignocellulosic material to facilitate oxygen gas delignification Expired CA1018707A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7208879A SE373896B (en) 1972-07-05 1972-07-05

Publications (1)

Publication Number Publication Date
CA1018707A true CA1018707A (en) 1977-10-11

Family

ID=20275256

Family Applications (1)

Application Number Title Priority Date Filing Date
CA175,525A Expired CA1018707A (en) 1972-07-05 1973-07-03 Pretreatment of lignocellulosic material to facilitate oxygen gas delignification

Country Status (11)

Country Link
AT (1) AT328286B (en)
BR (1) BR7304978D0 (en)
CA (1) CA1018707A (en)
CH (1) CH583333A5 (en)
FI (1) FI55061C (en)
FR (1) FR2190974B1 (en)
GB (1) GB1434232A (en)
IT (1) IT996577B (en)
NO (1) NO140535C (en)
SE (1) SE373896B (en)
ZA (1) ZA734384B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282500A1 (en) * 1974-08-20 1976-03-19 Grp Europ De Cellulose Paper pulp is de-lignified by heating with alkali - followed by oxidation with oxidising liquid and pressurised oxygen
IT1209352B (en) * 1980-09-22 1989-07-16 Nardi Franco PROCESS FOR THE PRODUCTION OF CHEMICAL CELLULOSE AND / OR PAPER PASTES, AS WELL AS THE PLANT AND ITS COMPONENTS FOR THE IMPLEMENTATION OF THE INDICATED PROCESS
IN167959B (en) * 1985-08-05 1991-01-12 Interox
DE3674859D1 (en) * 1985-08-05 1990-11-15 Interox Sa METHOD FOR DELIGNIFYING CELLULOSE MATERIALS.
CA2356444C (en) 1999-02-15 2009-12-15 Kiram Ab Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals
WO2001059204A1 (en) * 2000-02-14 2001-08-16 Kiram Ab Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals
US7520958B2 (en) 2005-05-24 2009-04-21 International Paper Company Modified kraft fibers
EP3002365A1 (en) 2005-05-24 2016-04-06 International Paper Company Modified kraft fibers
US8440052B2 (en) * 2006-01-25 2013-05-14 Nalco Company Method and arrangement for feeding chemicals into a pulp process stream
US7771565B2 (en) 2006-02-21 2010-08-10 Packaging Corporation Of America Method of pre-treating woodchips prior to mechanical pulping
US8715969B2 (en) 2008-11-20 2014-05-06 E I Du Pont De Nemours And Company Delignification of biomass with sequential base treatment
CN108360277B (en) * 2017-12-28 2019-12-31 潍坊友容实业有限公司 Process method for extracting cellulose by utilizing amorpha fruticosa planted in saline-alkali soil
CN108166089B (en) * 2017-12-28 2020-07-07 潍坊友容实业有限公司 Method for preparing regenerated cellulose by utilizing amorpha fruticosa planted in saline-alkali soil
CN112852900A (en) * 2019-11-27 2021-05-28 中国石油天然气股份有限公司 Pretreatment method and enzymolysis method of lignocellulose raw material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE335053B (en) * 1969-05-13 1971-05-10 Mo Och Domsjoe Ab
CA895756A (en) * 1970-04-03 1972-03-21 Macmillan Bloedel Limited Two-stage soda-oxygen pulping
SE343092B (en) * 1970-06-22 1972-02-28 Mo Och Domsjoe Ab

Also Published As

Publication number Publication date
AT328286B (en) 1976-03-10
IT996577B (en) 1975-12-10
FR2190974B1 (en) 1975-08-22
FR2190974A1 (en) 1974-02-01
BR7304978D0 (en) 1974-09-05
ZA734384B (en) 1974-06-26
SE373896B (en) 1975-02-17
DE2333742B2 (en) 1975-11-27
NO140535B (en) 1979-06-11
FI55061C (en) 1979-05-10
GB1434232A (en) 1976-05-05
NO140535C (en) 1979-09-19
CH583333A5 (en) 1976-12-31
ATA591173A (en) 1975-05-15
DE2333742A1 (en) 1974-01-24
FI55061B (en) 1979-01-31

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