FI67242B - Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa - Google Patents

Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa Download PDF

Info

Publication number
FI67242B
FI67242B FI801211A FI801211A FI67242B FI 67242 B FI67242 B FI 67242B FI 801211 A FI801211 A FI 801211A FI 801211 A FI801211 A FI 801211A FI 67242 B FI67242 B FI 67242B
Authority
FI
Finland
Prior art keywords
pulp
oxidation
process according
compression
unbleached
Prior art date
Application number
FI801211A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI801211A (fi
Inventor
Jacques Carles
Henri Lemoyne
Original Assignee
Ardennes Cellulose
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
Priority claimed from FR7909642A external-priority patent/FR2454479A1/fr
Priority claimed from FR8007170A external-priority patent/FR2479295A2/fr
Application filed by Ardennes Cellulose filed Critical Ardennes Cellulose
Publication of FI801211A publication Critical patent/FI801211A/fi
Application granted granted Critical
Publication of FI67242B publication Critical patent/FI67242B/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI801211A 1979-04-17 1980-04-16 Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa FI67242B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7909642A FR2454479A1 (fr) 1979-04-17 1979-04-17 Procede de delignification de pate a papier chimique
FR7909642 1979-04-17
FR8007170 1980-03-31
FR8007170A FR2479295A2 (fr) 1980-03-31 1980-03-31 Procede de delignification de pate a papier chimique ecrue

Publications (2)

Publication Number Publication Date
FI801211A FI801211A (fi) 1980-10-18
FI67242B true FI67242B (fi) 1984-10-31

Family

ID=26221114

Family Applications (1)

Application Number Title Priority Date Filing Date
FI801211A FI67242B (fi) 1979-04-17 1980-04-16 Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa

Country Status (9)

Country Link
US (1) US4462864A (fr)
EP (1) EP0018287B1 (fr)
AU (1) AU539108B2 (fr)
BR (1) BR8002356A (fr)
CA (1) CA1151363A (fr)
DE (1) DE3061582D1 (fr)
FI (1) FI67242B (fr)
NZ (1) NZ193456A (fr)
OA (1) OA06515A (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445051B (sv) * 1980-04-10 1986-05-26 Sca Development Ab Sett vid tillverkning av mekanisk, i huvudsak hartsfri cellulosamassa
US4559103A (en) * 1982-08-05 1985-12-17 Honshu Seishi Kabushiki Kaisha Packaging paper and packaging material for packaging metallic material and method of producing the same
SE451606B (sv) * 1982-09-14 1987-10-19 Sca Development Ab Sett vid blekning av hogutbytesmassor medelst peroxider
US4649113A (en) * 1983-12-28 1987-03-10 The United States Of America As Represented By The Secretary Of Agriculture Alkaline peroxide treatment of nonwoody lignocellulosics
US4806475A (en) * 1983-12-28 1989-02-21 The United States Of America As Represented By The Secretary Of Agriculture Alkaline peroxide treatment of agricultural byproducts
SE444825B (sv) * 1984-09-10 1986-05-12 Mo Och Domsjoe Ab Forfarande for framstellning av forbettrad hogutbytesmassa
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
US4793898A (en) * 1985-02-22 1988-12-27 Oy Keskuslaboratorio - Centrallaboratorium Ab Process for bleaching organic peroxyacid cooked material with an alkaline solution of hydrogen peroxide
US4826568A (en) * 1985-08-05 1989-05-02 Interox (Societe Anonyme) Process for delignification of cellulosic substances by pretreating with a complexing agent followed by peroxide prior to kraft digestion
US4826567A (en) * 1985-08-05 1989-05-02 Interox (Societe Anonyme) Process for the delignification of cellulosic substances by pretreating with a complexing agent followed by hydrogen peroxide
US4965086A (en) * 1988-01-04 1990-10-23 Degussa Aktiengesellschaft Chemical-mechanical treatment of lignocellulosics to improve nutritive value
US5023097A (en) * 1988-04-05 1991-06-11 Xylan, Inc. Delignification of non-woody biomass
US4842877A (en) * 1988-04-05 1989-06-27 Xylan, Inc. Delignification of non-woody biomass
EP0337653A3 (fr) * 1988-04-15 1991-10-02 E.I. Du Pont De Nemours And Company Traitement alcalin au peroxyde de substrats lignocellulosiques non-ligneux
US4859283A (en) * 1988-04-15 1989-08-22 E. I. Du Pont De Nemours And Company Magnesium ions in a process for alkaline peroxide treatment of nonwoody lignocellulosic substrates
US4957599A (en) * 1988-04-15 1990-09-18 E. I. Du Pont De Nemours And Company Alkaline extraction, peroxide bleaching of nonwoody lignocellulosic substrates
US4859282A (en) * 1988-04-15 1989-08-22 E. I. Du Pont De Nemours And Company Acid purification of product from alkaline peroxide processing of nonwoody lignocellulosic substrates
US4915785A (en) * 1988-12-23 1990-04-10 C-I-L Inc. Single stage process for bleaching of pulp with an aqueous hydrogen peroxide bleaching composition containing magnesium sulphate and sodium silicate
CA2082557C (fr) * 1992-02-24 1997-03-11 Charles W. Hankins Procede de desintegration integre de dechets de papier produisant des fibres de papier de categorie hygienique
BE1008751A3 (fr) * 1994-07-26 1996-07-02 Solvay Xylanase, microorganismes la produisant, molecules d'adn, procedes de preparation de cette xylanase et utilisations de celle-ci.
US5770010A (en) * 1995-04-20 1998-06-23 R-J Holding Company Pulping process employing nascent oxygen
US7747434B2 (en) * 2000-10-24 2010-06-29 Speech Conversion Technologies, Inc. Integrated speech recognition, closed captioning, and translation system and method
US8138106B2 (en) 2005-09-30 2012-03-20 Rayonier Trs Holdings Inc. Cellulosic fibers with odor control characteristics
US7967948B2 (en) * 2006-06-02 2011-06-28 International Paper Company Process for non-chlorine oxidative bleaching of mechanical pulp in the presence of optical brightening agents
CA2686470C (fr) * 2007-05-07 2015-03-31 Hydrite Chemical Co. Systemes, compositions, et/ou procedes pour depolymeriser la cellulose et/ou l'amidon

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA558246A (fr) * 1958-06-03 L. Mcewen Robert Decoloration de la pulpe a haute temperature
US3313678A (en) * 1962-02-14 1967-04-11 Svenska Cellulose Aktiebolaget Bleaching of cellulose pulp in towers in completely filled and closed system
DE1203592B (de) * 1962-02-23 1965-10-21 Rudolf Bott Dipl Ing Verfahren zum Bleichen von cellulosehaltigen Faserstoffen
DE2219505C3 (de) * 1972-04-21 1974-10-17 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Chlorfreie Mehrstufenbleiche von Zellstoff
SE413684C (sv) * 1974-09-23 1987-05-18 Mo Och Domsjoe Ab Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 %
SE415581B (sv) * 1977-04-18 1980-10-13 Mo Och Domsjoe Ab Forfarande for perocidblekning av hogutbytesmassa
SE422818B (sv) * 1978-03-31 1982-03-29 Modo Chemetrics Ab Forfarande for foredling av allulosamassa genom blekning eller extrahering

Also Published As

Publication number Publication date
EP0018287B1 (fr) 1983-01-12
AU539108B2 (en) 1984-09-13
NZ193456A (en) 1982-06-29
CA1151363A (fr) 1983-08-09
US4462864A (en) 1984-07-31
BR8002356A (pt) 1980-12-02
DE3061582D1 (en) 1983-02-17
FI801211A (fi) 1980-10-18
AU5745080A (en) 1980-10-23
EP0018287A1 (fr) 1980-10-29
OA06515A (fr) 1981-07-31

Similar Documents

Publication Publication Date Title
FI67242B (fi) Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa
FI59273C (fi) Foerfarande foer blekning av cellulosamassa
JP4499280B2 (ja) 過酸による化学パルプの漂白
US5785812A (en) Process for treating oxygen delignified pulp using an organic peracid or salt, complexing agent and peroxide bleach sequence
US4155806A (en) Method for continuous alkaline delignification of lignocellulose material in two or more steps, the final of which with oxygen
US4283251A (en) Ozone effluent bleaching
US4196043A (en) Kraft pulp bleaching and recovery process
SE469387B (sv) Saett vid blekning av massa utan anvaendning av klorkemikalier
EP0480469A2 (fr) Pâtes de bois sans chlore et procédé pour leur obtention
JPS6320953B2 (fr)
US5853535A (en) Process for manufacturing bleached pulp including recycling
JP3716349B2 (ja) 漂白セルロースパルプの製造方法
FI116393B (fi) Menetelmä selluloosamassan delignifioimiseksi ja valkaisemiseksi
EP0716182A2 (fr) Pâte à papier du type organosolv blanchie sans chlore
FI98077C (fi) Menetelmä liukosellun valkaisemiseksi ilman klooria
FI105213B (fi) Menetelmä valkaistun massan valmistamiseksi lignoselluloosamateriaalista
US6126782A (en) Method for non-chlorine bleaching of cellulose pulp with a totally closed counter-current liquid circuit
US4602982A (en) Process for delignifying bleaching lignin-containing cellulose pulp by activating the pulp with NO2 and O2 gas in the presence of water, sodium nitrate and nitric acid
EP0464110B1 (fr) Procede de blanchiment servant a la production de pulpes tres claires
JPH0726350B2 (ja) パルプの高脱リグニン選択性を得る方法
WO1995006772A1 (fr) Procede ameliore de blanchiment de pate lignocellulosique
US8980051B2 (en) Sulfonation of pulp produced by alkali pulping process
JP2001003287A (ja) リグノセルロース物質の酸素脱リグニン
WO1988001661A1 (fr) Procede de blanchiment de pulpes
Colodette et al. Progress in eucalyptus kraft pulp bleaching

Legal Events

Date Code Title Description
FC Application refused

Owner name: INTEROX S.A.