CA1206704A - Procede pour le traitement de pates papetieres chimiques - Google Patents

Procede pour le traitement de pates papetieres chimiques

Info

Publication number: CA1206704A
Authority: CA; Canada
Prior art keywords: treatment; acid; solution; peroxide; alkaline
Prior art date: 1982-01-28
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

CA000420203A

Other languages

English (en)

French (fr)

Inventor

Dominique Lachenal

Christian De Choudens

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.)

Produits Chimiques Ugine Kuhlmann

Original Assignee

Produits Chimiques 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.)

1982-01-28

Filing date

1983-01-25

Publication date

1986-07-02

1983-01-25 Application filed by Produits Chimiques Ugine Kuhlmann filed Critical Produits Chimiques Ugine Kuhlmann

1986-07-02 Application granted granted Critical

1986-07-02 Publication of CA1206704A publication Critical patent/CA1206704A/fr

Status Expired legal-status Critical Current

Links

238000011282 treatment Methods 0.000 title claims abstract description 67
229920001131 Pulp (paper) Polymers 0.000 title abstract description 10
239000002253 acid Substances 0.000 claims abstract description 24
238000000034 method Methods 0.000 claims abstract description 22
150000002978 peroxides Chemical class 0.000 claims abstract description 20
238000010306 acid treatment Methods 0.000 claims abstract description 12
230000008569 process Effects 0.000 claims abstract description 9
239000000126 substance Substances 0.000 claims abstract description 6
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 28
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
239000000243 solution Substances 0.000 claims description 21
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
239000012670 alkaline solution Substances 0.000 claims description 5
229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
239000011707 mineral Substances 0.000 claims description 3
150000007524 organic acids Chemical class 0.000 claims description 2
238000004061 bleaching Methods 0.000 abstract description 6
150000001768 cations Chemical class 0.000 description 13
239000002655 kraft paper Substances 0.000 description 13
235000015927 pasta Nutrition 0.000 description 13
230000000694 effects Effects 0.000 description 11
229910052751 metal Inorganic materials 0.000 description 7
239000002184 metal Substances 0.000 description 7
239000001301 oxygen Substances 0.000 description 7
229910052760 oxygen Inorganic materials 0.000 description 7
239000011122 softwood Substances 0.000 description 7
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 6
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 4
230000008901 benefit Effects 0.000 description 4
239000003153 chemical reaction reagent Substances 0.000 description 4
229920005610 lignin Polymers 0.000 description 4
239000011734 sodium Substances 0.000 description 4
230000002087 whitening effect Effects 0.000 description 4
239000004155 Chlorine dioxide Substances 0.000 description 3
UDHXJZHVNHGCEC-UHFFFAOYSA-N Chlorophacinone Chemical compound C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)C(=O)C1C(=O)C2=CC=CC=C2C1=O UDHXJZHVNHGCEC-UHFFFAOYSA-N 0.000 description 3
241001070947 Fagus Species 0.000 description 3
235000010099 Fagus sylvatica Nutrition 0.000 description 3
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
239000007864 aqueous solution Substances 0.000 description 3
239000000460 chlorine Substances 0.000 description 3
235000019398 chlorine dioxide Nutrition 0.000 description 3
230000008030 elimination Effects 0.000 description 3
238000003379 elimination reaction Methods 0.000 description 3
239000011121 hardwood Substances 0.000 description 3
239000001257 hydrogen Substances 0.000 description 3
229910052739 hydrogen Inorganic materials 0.000 description 3
239000011572 manganese Substances 0.000 description 3
229910052708 sodium Inorganic materials 0.000 description 3
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
230000002378 acidificating effect Effects 0.000 description 2
230000009471 action Effects 0.000 description 2
239000003795 chemical substances by application Substances 0.000 description 2
229910052801 chlorine Inorganic materials 0.000 description 2
150000001805 chlorine compounds Chemical class 0.000 description 2
230000000295 complement effect Effects 0.000 description 2
238000010411 cooking Methods 0.000 description 2
239000010949 copper Substances 0.000 description 2
229910052748 manganese Inorganic materials 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
-1 peroxide hydrogen Chemical class 0.000 description 2
NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
XXQBEVHPUKOQEO-UHFFFAOYSA-N potassium superoxide Chemical compound [K+].[K+].[O-][O-] XXQBEVHPUKOQEO-UHFFFAOYSA-N 0.000 description 2
238000002203 pretreatment Methods 0.000 description 2
238000011084 recovery Methods 0.000 description 2
235000011149 sulphuric acid Nutrition 0.000 description 2
238000005406 washing Methods 0.000 description 2
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
229920003043 Cellulose fiber Polymers 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
240000001987 Pyrus communis Species 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
239000003929 acidic solution Substances 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
239000003513 alkali Substances 0.000 description 1
229910000147 aluminium phosphate Inorganic materials 0.000 description 1
239000007844 bleaching agent Substances 0.000 description 1
239000011575 calcium Substances 0.000 description 1
229910052791 calcium Inorganic materials 0.000 description 1
239000003054 catalyst Substances 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
238000004040 coloring Methods 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
238000004880 explosion Methods 0.000 description 1
230000036541 health Effects 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-N hydrochloric acid Substances Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000009434 installation Methods 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
238000004900 laundering Methods 0.000 description 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
229910021645 metal ion Inorganic materials 0.000 description 1
239000000203 mixture Substances 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
235000005985 organic acids Nutrition 0.000 description 1
239000011591 potassium Substances 0.000 description 1
229910052700 potassium Inorganic materials 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
238000004064 recycling Methods 0.000 description 1
230000009467 reduction Effects 0.000 description 1
238000007670 refining Methods 0.000 description 1
230000001105 regulatory effect Effects 0.000 description 1
230000035943 smell Effects 0.000 description 1
229960002218 sodium chlorite Drugs 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1

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)

CA000420203A 1982-01-28 1983-01-25 Procede pour le traitement de pates papetieres chimiques Expired CA1206704A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8201603A FR2520397A1 (fr)	1982-01-28	1982-01-28	Procede pour le traitement de pates papetieres chimiques
FR8201603		1982-01-28

Publications (1)

Publication Number	Publication Date
CA1206704A true CA1206704A (fr)	1986-07-02

Family

ID=9270561

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000420203A Expired CA1206704A (fr)	1982-01-28	1983-01-25	Procede pour le traitement de pates papetieres chimiques

Country Status (16)

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

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5143580A (en) *	1990-04-23	1992-09-01	Eka Nobel Ab	Process for reducing the amount of halogenated organic compounds in spent liquor from a peroxide-halogen bleaching sequence
US5149442A (en) *	1990-04-23	1992-09-22	Eka Nobel Ab	Reduction of halogenated organic compounds in spent bleach liquor
US5310458A (en) *	1989-06-06	1994-05-10	Eka Nobel Ab	Process for bleaching lignocellulose-containing pulps
US5571377A (en) *	1993-06-08	1996-11-05	Kvaerner Pulping Technologies Ab	Process for peroxide bleaching of chemical pulp in a pressurized bleach vessel
EP0679760B1 (en) *	1991-04-30	1998-11-18	Eka Chemicals AB	Process for bleaching of lignocellulose-containing pulp
US6315862B1 (en)	1992-07-07	2001-11-13	Kvaerner Pulping Technologies	Process for bleaching pulp with adsorption of metals
US6398908B1 (en)	1991-04-30	2002-06-04	Eka Nobel Ab	Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
US6736934B1 (en)	1995-02-17	2004-05-18	Andritz Oy	Method of pretreating pulp in an acid tower prior to bleaching with peroxide
US6776876B1 (en)	1994-10-13	2004-08-17	Andritz Oy	Method of treating cellulosic pulp to remove hexenuronic acid
US8980051B2 (en)	2009-04-24	2015-03-17	International Paper Company	Sulfonation of pulp produced by alkali pulping process

Families Citing this family (9)

* 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.
US5091054A (en) *	1989-08-18	1992-02-25	Degussa Corporation	Process for bleaching and delignification of lignocellulosic
US5246543A (en) *	1989-08-18	1993-09-21	Degussa Corporation	Process for bleaching and delignification of lignocellulosic materials
DE3937932A1 (de) *	1989-11-15	1991-05-16	Holtzmann & Cie Ag E	Verfahren zum delignifizieren und bleichen von ungebleichten zellstoffsuspensionen mit alkalichlorit
SE512137C2 (sv) *	1992-10-29	2000-01-31	Eka Chemicals Ab	Förfarande för blekning av lignocellulosahaltig massa
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

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

1982
- 1982-01-28 FR FR8201603A patent/FR2520397A1/fr active Granted
- 1982-12-22 SE SE8207356A patent/SE462288B/sv unknown
- 1982-12-23 KR KR8205769A patent/KR850001341B1/ko active
1983
- 1983-01-07 IT IT67014/83A patent/IT1162810B/it active
- 1983-01-19 BE BE0/209926A patent/BE895645A/fr not_active IP Right Cessation
- 1983-01-25 CA CA000420203A patent/CA1206704A/fr not_active Expired
- 1983-01-26 PT PT76145A patent/PT76145B/pt not_active IP Right Cessation
- 1983-01-26 DE DE19833302580 patent/DE3302580A1/de active Granted
- 1983-01-27 FI FI830288A patent/FI76134C/fi not_active IP Right Cessation
- 1983-01-27 CH CH463/83A patent/CH653720A5/fr not_active IP Right Cessation
- 1983-01-27 AT AT0026383A patent/AT381736B/de not_active IP Right Cessation
- 1983-01-27 ES ES519327A patent/ES519327A0/es active Granted
- 1983-01-27 BR BR8300402A patent/BR8300402A/pt not_active IP Right Cessation
- 1983-01-27 NO NO830268A patent/NO161391C/no unknown
- 1983-01-28 JP JP58011603A patent/JPS58132190A/ja active Granted
- 1983-01-28 OA OA57907A patent/OA07313A/xx unknown

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5310458A (en) *	1989-06-06	1994-05-10	Eka Nobel Ab	Process for bleaching lignocellulose-containing pulps
US5143580A (en) *	1990-04-23	1992-09-01	Eka Nobel Ab	Process for reducing the amount of halogenated organic compounds in spent liquor from a peroxide-halogen bleaching sequence
US5149442A (en) *	1990-04-23	1992-09-22	Eka Nobel Ab	Reduction of halogenated organic compounds in spent bleach liquor
EP0679760B1 (en) *	1991-04-30	1998-11-18	Eka Chemicals AB	Process for bleaching of lignocellulose-containing pulp
US6398908B1 (en)	1991-04-30	2002-06-04	Eka Nobel Ab	Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
US6315862B1 (en)	1992-07-07	2001-11-13	Kvaerner Pulping Technologies	Process for bleaching pulp with adsorption of metals
US5571377A (en) *	1993-06-08	1996-11-05	Kvaerner Pulping Technologies Ab	Process for peroxide bleaching of chemical pulp in a pressurized bleach vessel
US6776876B1 (en)	1994-10-13	2004-08-17	Andritz Oy	Method of treating cellulosic pulp to remove hexenuronic acid
US6736934B1 (en)	1995-02-17	2004-05-18	Andritz Oy	Method of pretreating pulp in an acid tower prior to bleaching with peroxide
US8980051B2 (en)	2009-04-24	2015-03-17	International Paper Company	Sulfonation of pulp produced by alkali pulping process

Also Published As

Publication number	Publication date
SE8207356D0 (sv)	1982-12-22
PT76145B (fr)	1985-11-25
IT8367014A0 (it)	1983-01-07
AT381736B (de)	1986-11-25
CH653720A5 (fr)	1986-01-15
FR2520397A1 (fr)	1983-07-29
JPS58132190A (ja)	1983-08-06
NO830268L (no)	1983-07-29
FI830288L (fi)	1983-07-29
IT1162810B (it)	1987-04-01
DE3302580C2 (fi)	1992-07-02
BR8300402A (pt)	1983-11-01
NO161391C (no)	1989-08-09
KR840002934A (ko)	1984-07-21
FR2520397B1 (fi)	1984-03-09
ES8400520A1 (es)	1983-10-16
SE8207356L (sv)	1983-07-29
SE462288B (sv)	1990-05-28
FI76134C (fi)	1988-09-09
BE895645A (fr)	1983-07-19
DE3302580A1 (de)	1983-08-04
ES519327A0 (es)	1983-10-16
FI830288A0 (fi)	1983-01-27
FI76134B (fi)	1988-05-31
KR850001341B1 (ko)	1985-09-19
ATA26383A (de)	1986-04-15
JPH0217679B2 (fi)	1990-04-23
NO161391B (no)	1989-05-02
PT76145A (fr)	1983-02-01
OA07313A (fr)	1984-08-31

Legal Events

Date	Code	Title	Description
2003-07-02	MKEX	Expiry

Publication	Publication Date	Title
CA1206704A (fr)	1986-07-02	Procede pour le traitement de pates papetieres chimiques
EP0019963B1 (fr)	1982-12-15	Procédé pour la délignification et le blanchiment de pâtes cellulosiques chimiques et semi-chimiques
CA2709526C (en)	2016-02-02	Process for production of bleached pulp
JP7100315B2 (ja)	2022-07-13	漂白パルプの製造方法
BE1004630A3 (fr)	1992-12-22	Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.
CA1273756A (fr)	1990-09-11	Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment
EP0433138B1 (fr)	1994-08-17	Procédé de blanchiment de pâtes cellulosiques chimiques
EP0464110B1 (en)	1994-06-08	Bleaching process for the production of high bright pulps
CA2037678C (fr)	1999-11-16	Procede de preparation de pates a haut rendement blanchies
US10006168B2 (en)	2018-06-26	Method for treating chemical pulps by treatment with ozone in the presence of magnesium ions
FR2673813A1 (fr)	1992-09-18	Procede de blanchiment en deux etapes de matieres vegetales a usage alimentaire.
FI75374B (fi)	1988-02-29	Hypokloritbehandling av kemiska pappersmassor.
JP5471050B2 (ja)	2014-04-16	Ｔｃｆ漂白方法
CN114174589B (zh)	2023-02-17	漂白纸浆的制造方法
JPH08507332A (ja)	1996-08-06	製紙用化学パルプの脱リグニン方法
JP2001192991A (ja)	2001-07-17	アルカリパルプの漂白方法
WO1992021814A1 (fr)	1992-12-10	Procede pour blanchiment et la delignification de pates a papier chimiques
WO2022102206A1 (ja)	2022-05-19	漂白パルプの製造方法
FR2568605A1 (fr)	1986-02-07	Perfectionnements a la delignification de pate a papier.
WO2012028800A1 (fr)	2012-03-08	Procede de delignification et de blanchiment de pate a papier au moyen de peroxyde d'hydrogene active
FR2695947A1 (fr)	1994-03-25	Procédé de blanchiment de pâtes cellulosiques chimiques.
FR2562104A1 (fr)	1985-10-04	Procede de preblanchiment de pate de cellulose
CS199637B2 (cs)	1980-07-31	Způsob výroby chemické buničiny
CZ297592A3 (en)	1993-07-14	Method of improving lignin splitting selectivity of a paper pulp
EP0874082A1 (fr)	1998-10-28	Procédé continu de délignification et/ou de blanchiment de pâte à papier chimique vierge ou recyclée

CA1206704A - Procede pour le traitement de pates papetieres chimiques - Google Patents

Info

Links

Classifications

Landscapes

Applications Claiming Priority (2)

Publications (1)

Family

ID=9270561

Family Applications (1)

Country Status (16)

Cited By (10)

Families Citing this family (9)

Family Cites Families (8)

Cited By (10)

Also Published As

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Legal Events