IT8367014A0 - Procedimento per il trattamento di paste chimiche per carta - Google Patents

Procedimento per il trattamento di paste chimiche per carta

Info

Publication number
IT8367014A0
IT8367014A0 IT8367014A IT6701483A IT8367014A0 IT 8367014 A0 IT8367014 A0 IT 8367014A0 IT 8367014 A IT8367014 A IT 8367014A IT 6701483 A IT6701483 A IT 6701483A IT 8367014 A0 IT8367014 A0 IT 8367014A0
Authority
IT
Italy
Prior art keywords
procedure
treatment
paper pulp
chemical paper
chemical
Prior art date
Application number
IT8367014A
Other languages
English (en)
Other versions
IT1162810B (it
Inventor
Dominique Lachenal
Christian De Choudens
Original Assignee
Ugine Kuhlmann
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 Ugine Kuhlmann filed Critical Ugine Kuhlmann
Publication of IT8367014A0 publication Critical patent/IT8367014A0/it
Application granted granted Critical
Publication of IT1162810B publication Critical patent/IT1162810B/it

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
    • 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)
IT67014/83A 1982-01-28 1983-01-07 Procedimento per il trattamento di paste chimiche per carta IT1162810B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8201603A FR2520397A1 (fr) 1982-01-28 1982-01-28 Procede pour le traitement de pates papetieres chimiques

Publications (2)

Publication Number Publication Date
IT8367014A0 true IT8367014A0 (it) 1983-01-07
IT1162810B IT1162810B (it) 1987-04-01

Family

ID=9270561

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67014/83A IT1162810B (it) 1982-01-28 1983-01-07 Procedimento per il trattamento di paste chimiche per carta

Country Status (16)

Country Link
JP (1) JPS58132190A (it)
KR (1) KR850001341B1 (it)
AT (1) AT381736B (it)
BE (1) BE895645A (it)
BR (1) BR8300402A (it)
CA (1) CA1206704A (it)
CH (1) CH653720A5 (it)
DE (1) DE3302580A1 (it)
ES (1) ES519327A0 (it)
FI (1) FI76134C (it)
FR (1) FR2520397A1 (it)
IT (1) IT1162810B (it)
NO (1) NO161391C (it)
OA (1) OA07313A (it)
PT (1) PT76145B (it)
SE (1) SE462288B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1227304A (en) * 1984-08-01 1987-09-29 Raymond C. Francis Delignification of pulp
FR2593527B1 (fr) * 1986-01-30 1988-03-25 Centre Tech Ind Papier Procede de blanchiment des pates mecaniques.
EP0402335B2 (en) * 1989-06-06 2001-03-14 Eka Chemicals AB Process for bleaching lignocellulose-containing pulps
US5246543A (en) * 1989-08-18 1993-09-21 Degussa Corporation Process for bleaching and delignification of lignocellulosic materials
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
DE3937932A1 (de) * 1989-11-15 1991-05-16 Holtzmann & Cie Ag E Verfahren zum delignifizieren und bleichen von ungebleichten zellstoffsuspensionen mit alkalichlorit
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
SE9001481L (sv) * 1990-04-23 1991-10-24 Eka Nobel Ab Reduktion av halogenorganiska foereningar i blekeriavlopp
US6398908B1 (en) 1991-04-30 2002-06-04 Eka Nobel Ab Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
SE470065C (sv) * 1991-04-30 1996-01-15 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
SE500113C2 (sv) * 1992-07-09 1994-04-18 Kamyr Ab Sätt vid blekning av massa för omhändertagande av utlösta metaller
SE512137C2 (sv) * 1992-10-29 2000-01-31 Eka Chemicals Ab Förfarande för blekning av lignocellulosahaltig massa
SE500616C2 (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
US6776876B1 (en) 1994-10-13 2004-08-17 Andritz Oy Method of treating cellulosic pulp to remove hexenuronic acid
EP0858526A1 (en) * 1995-02-17 1998-08-19 Ahlstrom Machinery Oy Method of pretreating pulp to be bleached with peroxide
SE526241C2 (sv) * 2003-12-18 2005-08-02 Metso Paper Inc Förfarande för att surgöra lignocellulosahaltig massa före ozonblekning
US8080560B2 (en) 2004-12-17 2011-12-20 3M Innovative Properties Company Immune response modifier formulations containing oleic acid and methods
US8889154B2 (en) 2005-09-15 2014-11-18 Medicis Pharmaceutical Corporation Packaging for 1-(2-methylpropyl)-1H-imidazo[4,5-c] quinolin-4-amine-containing formulation
US8980051B2 (en) 2009-04-24 2015-03-17 International Paper Company Sulfonation of pulp produced by alkali pulping process

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1705897A (en) * 1922-03-16 1929-03-19 Bradley Linn Bleaching of pulp
FR1010501A (fr) * 1948-08-31 1952-06-12 Papiers Abadie Sa Des Procédé de blanchîment des pâtes cellulosiques
US2668095A (en) * 1950-09-22 1954-02-02 Du Pont Bleaching chemical paper pulp
FR1201712A (fr) * 1958-07-11 1960-01-05 Fr Du Xylon Soc Perfectionnements au blanchiment des pâtes cellulosiques
JPS51102103A (en) * 1975-03-05 1976-09-09 Nippon Parupu Kogyo Kk Ryusanenhoparupuno hyohakuhoho
FR2398839A1 (fr) * 1977-07-29 1979-02-23 Centre Tech Ind Papier Procede de fabrication de pates papetieres chimiques
DE2742262C2 (de) * 1977-09-20 1982-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung eines mittel- bis hochviskosen Nadelholz-Sulfitzellstoffs
JPS5685489A (en) * 1979-12-10 1981-07-11 Kogyo Gijutsuin Pulp production

Also Published As

Publication number Publication date
FI830288A0 (fi) 1983-01-27
JPS58132190A (ja) 1983-08-06
ES8400520A1 (es) 1983-10-16
OA07313A (fr) 1984-08-31
NO830268L (no) 1983-07-29
KR840002934A (ko) 1984-07-21
BR8300402A (pt) 1983-11-01
FR2520397B1 (it) 1984-03-09
NO161391C (no) 1989-08-09
NO161391B (no) 1989-05-02
AT381736B (de) 1986-11-25
CH653720A5 (fr) 1986-01-15
DE3302580A1 (de) 1983-08-04
SE8207356D0 (sv) 1982-12-22
FR2520397A1 (fr) 1983-07-29
SE8207356L (sv) 1983-07-29
FI76134B (fi) 1988-05-31
PT76145A (fr) 1983-02-01
KR850001341B1 (ko) 1985-09-19
BE895645A (fr) 1983-07-19
DE3302580C2 (it) 1992-07-02
SE462288B (sv) 1990-05-28
ATA26383A (de) 1986-04-15
FI830288L (fi) 1983-07-29
JPH0217679B2 (it) 1990-04-23
PT76145B (fr) 1985-11-25
ES519327A0 (es) 1983-10-16
IT1162810B (it) 1987-04-01
CA1206704A (fr) 1986-07-02
FI76134C (fi) 1988-09-09

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940129