FR2537176B1 - Procede de blanchiment par delignification de la pate cellulosique - Google Patents

Procede de blanchiment par delignification de la pate cellulosique

Info

Publication number
FR2537176B1
FR2537176B1 FR8319086A FR8319086A FR2537176B1 FR 2537176 B1 FR2537176 B1 FR 2537176B1 FR 8319086 A FR8319086 A FR 8319086A FR 8319086 A FR8319086 A FR 8319086A FR 2537176 B1 FR2537176 B1 FR 2537176B1
Authority
FR
France
Prior art keywords
delignification
bleaching
cellulosic paste
cellulosic
paste
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
FR8319086A
Other languages
English (en)
Other versions
FR2537176A1 (fr
Inventor
Hans Olof Samuelson
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
Publication of FR2537176A1 publication Critical patent/FR2537176A1/fr
Application granted granted Critical
Publication of FR2537176B1 publication Critical patent/FR2537176B1/fr
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
    • 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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
FR8319086A 1982-12-01 1983-11-30 Procede de blanchiment par delignification de la pate cellulosique Expired FR2537176B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8206859A SE434283B (sv) 1982-12-01 1982-12-01 Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas

Publications (2)

Publication Number Publication Date
FR2537176A1 FR2537176A1 (fr) 1984-06-08
FR2537176B1 true FR2537176B1 (fr) 1988-06-17

Family

ID=20348818

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8319086A Expired FR2537176B1 (fr) 1982-12-01 1983-11-30 Procede de blanchiment par delignification de la pate cellulosique

Country Status (11)

Country Link
US (1) US4602982A (fr)
JP (1) JPS59106592A (fr)
AT (1) AT384252B (fr)
AU (1) AU560978B2 (fr)
CA (1) CA1205959A (fr)
DE (1) DE3343403A1 (fr)
FI (1) FI73018C (fr)
FR (1) FR2537176B1 (fr)
NO (1) NO162920C (fr)
NZ (1) NZ205971A (fr)
SE (1) SE434283B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2005369A1 (fr) * 1988-12-20 1990-06-20 Madhusudan D. Jayawant Procede pour ameliorer la delignification alcaline par oxydation, de la pate cellulosique
US4995983A (en) * 1990-03-21 1991-02-26 Macmillan Bloedel Limited Membrane separation process
FI98537C (fi) * 1993-10-20 1997-07-10 Enso Gutzeit Oy Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi
FI96387C (fi) * 1994-09-19 2001-12-03 Kvaerner Pulping Oy Menetelmä typen oksidien poistamiseksi sellutehtaan savukaasuista
CA2452145A1 (fr) * 2003-06-03 2004-12-03 David Tarasenko Methode de production de pate et de lignine
RU2383675C1 (ru) * 2005-12-07 2010-03-10 Келли Энтони О`ФЛИНН Осуществляемый в каталитическом реакторе процесс производства промышленной целлюлозной массы, нативного лигнина и одноклеточного белка
US8663427B2 (en) 2011-04-07 2014-03-04 International Paper Company Addition of endothermic fire retardants to provide near neutral pH pulp fiber webs
WO2012018749A1 (fr) 2010-08-03 2012-02-09 International Paper Company Bande de pâte défibrée ignifugée et son processus de fabrication
US8388807B2 (en) 2011-02-08 2013-03-05 International Paper Company Partially fire resistant insulation material comprising unrefined virgin pulp fibers and wood ash fire retardant component
GB201414829D0 (en) * 2014-08-20 2014-10-01 Univ St Andrews Lignin processing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1040198A (en) * 1909-01-28 1912-10-01 Charles Hartman Belt-tension regulator for ice-cutting machines.
US1829852A (en) * 1928-12-13 1931-11-03 Cornstalk Products Company Inc Manufacture of cellulose from straw
US1923292A (en) * 1931-08-31 1933-08-22 Harry P Bassett Purification of cellulose material
DE681149C (de) * 1936-04-24 1939-09-18 I G Farbenindustrie Akt Ges Verfahren zur Gewinnung von Zellstoff
US4076579A (en) * 1973-08-06 1978-02-28 The Regents Of The University Of California Pulping of lignocellulosic material by sequential treatment thereof with nitric oxide and oxygen
SE421938B (sv) * 1980-06-05 1982-02-08 Mo Och Domsjoe Ab Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning
SE445122B (sv) * 1980-12-17 1986-06-02 Mo Och Domsjoe Ab Forfarande for delignifiering av cellulosamassa i nervaro av kvevedioxid
SE448006B (sv) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider

Also Published As

Publication number Publication date
JPS642715B2 (fr) 1989-01-18
SE8206859L (sv) 1984-06-02
JPS59106592A (ja) 1984-06-20
AU2085883A (en) 1984-06-07
DE3343403A1 (de) 1984-06-07
AU560978B2 (en) 1987-04-30
SE434283B (sv) 1984-07-16
DE3343403C2 (fr) 1989-04-27
NO162920B (no) 1989-11-27
NO834407L (no) 1984-06-04
FI73018C (fi) 1987-08-10
SE8206859D0 (sv) 1982-12-01
NO162920C (no) 1990-03-07
US4602982A (en) 1986-07-29
NZ205971A (en) 1987-01-23
FR2537176A1 (fr) 1984-06-08
AT384252B (de) 1987-10-27
ATA418483A (de) 1987-03-15
FI834382A0 (fi) 1983-11-30
FI834382A (fi) 1984-06-02
FI73018B (fi) 1987-04-30
CA1205959A (fr) 1986-06-17

Similar Documents

Publication Publication Date Title
BE887023A (fr) Procede de blanchiment de pate cellulosique
FR2570068B1 (fr) Procede de preparation de carbones actives fibreux
FR2537587B1 (fr) Procede pour dissoudre le carbamate de cellulose
BE875929A (fr) Procede de production de panneaux cellulosiques
FR2557104B1 (fr) Procede de production de lysine
FR2575198B1 (fr) Procede de fabrication de pate de cellulose
FR2527615B1 (fr) Procede de preparation du 26,26,26,27,27,27-hexafluoro-1a,25-dihydroxycholesterol
FR2560882B1 (fr) Procede pour la preparation de carbamate de cellulose
PT76595B (fr) Procede de preparation de benzoazacycloalkyl-spiro-imidazolidines
FR2521833B1 (fr) Procede de deshydratation de legumes
ZA836420B (en) Kraft pulping process
FR2537176B1 (fr) Procede de blanchiment par delignification de la pate cellulosique
FR2604197B1 (fr) Procede de blanchiment de matieres lignocellulosiques.
RO92931A (fr) Procede cyclique pour la preparation de la solution alcaline de carbamate de cellulose
FR2524316B1 (fr) Procede de photodecontamination
FR2525219B1 (fr) Procede pour la preparation de 4-hydroxy-2-methyl-2h-1,2-benzothiazine-3-carboxamide-1-1-dioxydes
IT1209859B (it) Procedimento per la produzione di polpa cellulosica
FR2571393B1 (fr) Procede de fabrication de pate de cellulose
FR2534905B1 (fr) Procede de preparation de phenylcetones
FR2549039B1 (fr) Procede de preparation de 3,3,3-trifluoro-2-trifluoro-mehylpropene
FR2530929B1 (fr) Procede de deshydratation de vegetaux humides
FR2528825B1 (fr) Procede de preparation de meta-chlorobenzotrifluorure
FR2528034B1 (fr) Procede de preparation de derives de p-tert-butylbenzene
MX162788A (es) Mejoras a proceso para la modificacion de pulpa de bagazo
FR2526790B1 (fr) Procede de preparation de la o-phenylenediamine

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse