CA2069308C - Procede de production de papier - Google Patents

Procede de production de papier

Info

Publication number: CA2069308C
Authority: CA; Canada
Prior art keywords: acid; process according; silicic acid; polymeric silicic; acidification
Prior art date: 1989-11-09
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 - Lifetime

Application number

CA002069308A

Other languages

English (en)

Inventor

Ulf Rune Carlson

Hans Erik Johansson

Kjell Axel Johansson

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.)

Nouryon Pulp and Performance Chemicals AB

Original Assignee

Eka Nobel 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.)

1989-11-09

Filing date

1990-10-24

Publication date

1996-01-30

1990-10-24 Application filed by Eka Nobel AB filed Critical Eka Nobel AB

1996-01-30 Application granted granted Critical

1996-01-30 Publication of CA2069308C publication Critical patent/CA2069308C/fr

2010-10-24 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 47
238000004519 manufacturing process Methods 0.000 title claims abstract description 17
235000012239 silicon dioxide Nutrition 0.000 claims abstract description 87
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 77
125000002091 cationic group Chemical group 0.000 claims abstract description 49
229920002472 Starch Polymers 0.000 claims abstract description 30
239000008107 starch Substances 0.000 claims abstract description 30
235000019698 starch Nutrition 0.000 claims abstract description 30
229920002401 polyacrylamide Polymers 0.000 claims abstract description 24
239000000835 fiber Substances 0.000 claims abstract description 20
239000000725 suspension Substances 0.000 claims abstract description 16
239000000945 filler Substances 0.000 claims abstract description 13
229920002678 cellulose Polymers 0.000 claims abstract description 4
239000001913 cellulose Substances 0.000 claims abstract description 4
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 35
230000020477 pH reduction Effects 0.000 claims description 31
239000002253 acid Substances 0.000 claims description 29
239000000377 silicon dioxide Substances 0.000 claims description 17
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 16
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 15
229910052500 inorganic mineral Inorganic materials 0.000 claims description 14
239000011707 mineral Substances 0.000 claims description 14
239000000126 substance Substances 0.000 claims description 12
239000003456 ion exchange resin Substances 0.000 claims description 10
229920003303 ion-exchange polymer Polymers 0.000 claims description 10
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 9
229910052910 alkali metal silicate Inorganic materials 0.000 claims description 9
229910052681 coesite Inorganic materials 0.000 claims description 9
229910052906 cristobalite Inorganic materials 0.000 claims description 9
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
229910052682 stishovite Inorganic materials 0.000 claims description 9
229910052905 tridymite Inorganic materials 0.000 claims description 9
NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 8
229910000147 aluminium phosphate Inorganic materials 0.000 claims description 8
239000007864 aqueous solution Substances 0.000 claims description 8
229920006317 cationic polymer Polymers 0.000 claims description 7
235000019353 potassium silicate Nutrition 0.000 claims description 7
239000001117 sulphuric acid Substances 0.000 claims description 7
235000011149 sulphuric acid Nutrition 0.000 claims description 7
229920001131 Pulp (paper) Polymers 0.000 claims description 6
125000000129 anionic group Chemical group 0.000 claims description 5
229910052783 alkali metal Inorganic materials 0.000 claims description 4
150000001340 alkali metals Chemical class 0.000 claims description 4
150000001768 cations Chemical class 0.000 claims 1
230000014759 maintenance of location Effects 0.000 abstract description 14
229960004029 silicic acid Drugs 0.000 abstract 1
239000000123 paper Substances 0.000 description 17
230000000694 effects Effects 0.000 description 9
239000002245 particle Substances 0.000 description 9
238000007792 addition Methods 0.000 description 6
229910052782 aluminium Inorganic materials 0.000 description 6
239000003795 chemical substances by application Substances 0.000 description 6
238000002360 preparation method Methods 0.000 description 6
238000003860 storage Methods 0.000 description 6
150000001875 compounds Chemical class 0.000 description 5
125000005624 silicic acid group Chemical class 0.000 description 5
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
-1 aluminum modified silica particles Chemical class 0.000 description 4
230000001976 improved effect Effects 0.000 description 4
229920003043 Cellulose fiber Polymers 0.000 description 3
KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 3
MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
150000007513 acids Chemical class 0.000 description 3
229940037003 alum Drugs 0.000 description 3
150000001408 amides Chemical class 0.000 description 3
KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
238000006116 polymerization reaction Methods 0.000 description 3
229910021653 sulphate ion Inorganic materials 0.000 description 3
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
239000000654 additive Substances 0.000 description 2
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
150000001450 anions Chemical class 0.000 description 2
239000008119 colloidal silica Substances 0.000 description 2
238000007796 conventional method Methods 0.000 description 2
238000001879 gelation Methods 0.000 description 2
150000002500 ions Chemical class 0.000 description 2
229920002521 macromolecule Polymers 0.000 description 2
238000002156 mixing Methods 0.000 description 2
230000000717 retained effect Effects 0.000 description 2
239000000243 solution Substances 0.000 description 2
238000006467 substitution reaction Methods 0.000 description 2
238000004448 titration Methods 0.000 description 2
BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
235000018185 Betula X alpestris Nutrition 0.000 description 1
235000018212 Betula X uliginosa Nutrition 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
239000004890 Hydrophobing Agent Substances 0.000 description 1
229910020284 Na2SO4.10H2O Inorganic materials 0.000 description 1
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
235000011613 Pinus brutia Nutrition 0.000 description 1
241000018646 Pinus brutia Species 0.000 description 1
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
239000003513 alkali Substances 0.000 description 1
150000004645 aluminates Chemical class 0.000 description 1
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
ZEMWIYASLJTEHQ-UHFFFAOYSA-J aluminum;sodium;disulfate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZEMWIYASLJTEHQ-UHFFFAOYSA-J 0.000 description 1
BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
229910052921 ammonium sulfate Inorganic materials 0.000 description 1
239000001166 ammonium sulphate Substances 0.000 description 1
235000011130 ammonium sulphate Nutrition 0.000 description 1
229910021538 borax Inorganic materials 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
229920001429 chelating resin Polymers 0.000 description 1
150000001805 chlorine compounds Chemical class 0.000 description 1
239000000084 colloidal system Substances 0.000 description 1
229910052593 corundum Inorganic materials 0.000 description 1
238000004132 cross linking Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000001035 drying Methods 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
239000010419 fine particle Substances 0.000 description 1
239000011121 hardwood Substances 0.000 description 1
230000001771 impaired effect Effects 0.000 description 1
230000003993 interaction Effects 0.000 description 1
229920005610 lignin Polymers 0.000 description 1
239000000203 mixture Substances 0.000 description 1
238000006386 neutralization reaction Methods 0.000 description 1
150000007524 organic acids Chemical class 0.000 description 1
235000005985 organic acids Nutrition 0.000 description 1
239000011368 organic material Substances 0.000 description 1
235000006408 oxalic acid Nutrition 0.000 description 1
239000011087 paperboard Substances 0.000 description 1
230000008092 positive effect Effects 0.000 description 1
229910052700 potassium Inorganic materials 0.000 description 1
239000011591 potassium Substances 0.000 description 1
239000002994 raw material Substances 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
229910001388 sodium aluminate Inorganic materials 0.000 description 1
RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
235000010339 sodium tetraborate Nutrition 0.000 description 1
239000011122 softwood Substances 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
230000002195 synergetic effect Effects 0.000 description 1
BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
229910001845 yogo sapphire Inorganic materials 0.000 description 1

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
- D21H17/375—Poly(meth)acrylamide
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Dispersion Chemistry (AREA)
Inorganic Chemistry (AREA)
Paper (AREA)
Polarising Elements (AREA)

CA002069308A 1989-11-09 1990-10-24 Procede de production de papier Expired - Lifetime CA2069308C (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8903752A SE8903752D0 (sv)	1989-11-09	1989-11-09	Foerfarande foer framstaellning av papper
SE8903752-7		1989-11-09

Publications (1)

Publication Number	Publication Date
CA2069308C true CA2069308C (fr)	1996-01-30

Family

ID=20377424

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002069308A Expired - Lifetime CA2069308C (fr)	1989-11-09	1990-10-24	Procede de production de papier

Country Status (10)

Country	Link
EP (1)	EP0500770B1 (fr)
JP (1)	JPH04505351A (fr)
AT (1)	ATE94231T1 (fr)
AU (1)	AU637850B2 (fr)
CA (1)	CA2069308C (fr)
DE (1)	DE69003249T2 (fr)
ES (1)	ES2046040T3 (fr)
FI (1)	FI100611B (fr)
SE (1)	SE8903752D0 (fr)
WO (1)	WO1991007543A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2521651B2 (ja) *	1991-07-02	1996-08-07	エカノーベルアクチェボラーグ	紙の製造方法
EP0660899B1 (fr) *	1991-07-02	1996-08-14	Eka Chemicals AB	Procede de production de papier
US5695609A (en) *	1992-01-20	1997-12-09	Kemira Oy	Process for producing paper
FI920246A0 (fi) *	1992-01-20	1992-01-20	Kemira Oy	Foerfarande foer tillverkning av papper.
US5571494A (en) *	1995-01-20	1996-11-05	J. M. Huber Corporation	Temperature-activated polysilicic acids
SE9504081D0 (sv) *	1995-11-15	1995-11-15	Eka Nobel Ab	A process for the production of paper
US6033525A (en) *	1997-10-30	2000-03-07	Moffett; Robert Harvey	Modified cationic starch composition for removing particles from aqueous dispersions
US5859128A (en) *	1997-10-30	1999-01-12	E. I. Du Pont De Nemours And Company	Modified cationic starch composition for removing particles from aqueous dispersions
US5928474A (en) *	1997-10-30	1999-07-27	E. I. Du Pont De Nemours And Company	Modified starch composition for removing particles from aqueous dispersions
DE19832241A1 (de) *	1998-07-17	2000-01-27	Stockhausen Chem Fab Gmbh	Verwendung von modifizierten Stärkeprodukten als Retentionsmittel bei der Papierherstellung
US6083997A (en) *	1998-07-28	2000-07-04	Nalco Chemical Company	Preparation of anionic nanocomposites and their use as retention and drainage aids in papermaking
MXPA02003881A (es) *	1999-10-19	2002-10-23	Weyerhaeuser Co	Polisacaridos modificados cationicamente.
US6699363B2 (en)	2001-11-13	2004-03-02	E. I. Du Pont De Nemours And Company	Modified starch and process therefor
US7955473B2 (en) *	2004-12-22	2011-06-07	Akzo Nobel N.V.	Process for the production of paper
US20060254464A1 (en)	2005-05-16	2006-11-16	Akzo Nobel N.V.	Process for the production of paper
US8273216B2 (en)	2005-12-30	2012-09-25	Akzo Nobel N.V.	Process for the production of paper
PT1969183E (pt)	2005-12-30	2015-03-06	Akzo Nobel Nv	Processo para a produção de papel
US8118976B2 (en) *	2007-05-23	2012-02-21	Akzo Nobel N.V.	Process for the production of a cellulosic product
EP2711347A1 (fr) *	2012-09-21	2014-03-26	HeidelbergCement AG	Procédé et moyen destinés à préparer des agrégats
FR2998563B1 (fr)	2012-11-28	2014-12-19	Roquette Freres	Procede d'epaississement ou de deshydratation de boues
DE102022103082A1 (de)	2022-02-09	2023-08-10	Jan Reijnvaan	Palettenblöcke und Paletten
DE102022103081A1 (de)	2022-02-09	2023-08-10	Jan Reijnvaan	Paletten

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0663197B2 (ja) *	1985-11-07	1994-08-17	三菱製紙株式会社	中性紙の製紙方法
GB8621680D0 (en) *	1986-09-09	1986-10-15	Du Pont	Filler compositions

1989
- 1989-11-09 SE SE8903752A patent/SE8903752D0/xx unknown
1990
- 1990-10-24 CA CA002069308A patent/CA2069308C/fr not_active Expired - Lifetime
- 1990-10-24 AT AT91900405T patent/ATE94231T1/de not_active IP Right Cessation
- 1990-10-24 WO PCT/SE1990/000688 patent/WO1991007543A1/fr not_active Ceased
- 1990-10-24 ES ES91900405T patent/ES2046040T3/es not_active Expired - Lifetime
- 1990-10-24 AU AU67328/90A patent/AU637850B2/en not_active Expired
- 1990-10-24 DE DE91900405T patent/DE69003249T2/de not_active Expired - Lifetime
- 1990-10-24 JP JP2515828A patent/JPH04505351A/ja active Pending
- 1990-10-24 EP EP91900405A patent/EP0500770B1/fr not_active Expired - Lifetime
1992
- 1992-05-06 FI FI922055A patent/FI100611B/fi active

Also Published As

Publication number	Publication date
DE69003249D1 (de)	1993-10-14
FI922055A0 (fi)	1992-05-06
EP0500770A1 (fr)	1992-09-02
FI922055L (fi)	1992-05-06
ATE94231T1 (de)	1993-09-15
WO1991007543A1 (fr)	1991-05-30
JPH04505351A (ja)	1992-09-17
SE8903752D0 (sv)	1989-11-09
FI100611B (fi)	1998-01-15
ES2046040T3 (es)	1994-01-16
EP0500770B1 (fr)	1993-09-08
AU637850B2 (en)	1993-06-10
DE69003249T2 (de)	1994-03-31
AU6732890A (en)	1991-06-13

Legal Events

Date	Code	Title	Description
1992-04-14	EEER	Examination request
2010-10-24	MKEX	Expiry

Publication	Publication Date	Title
CA2069308C (fr)	1996-01-30	Procede de production de papier
CA2067495C (fr)	1996-11-05	Sols de silice, procede pour leur production et leur utilisation
US5127994A (en)	1992-07-07	Process for the production of paper
CA2067506C (fr)	1996-10-22	Sols de silice, procede pour leur production et leur utilisation
US4946557A (en)	1990-08-07	Process for the production of paper
US4964954A (en)	1990-10-23	Process for the production of paper
KR960015749B1 (ko)	1996-11-20	시이트나 웨브(web)형 세룰로오스 섬유함유 제품의 제조방법
US5846384A (en)	1998-12-08	Process for the production of paper
EP0357574B1 (fr)	1993-12-22	Procédé de fabrication de papier
FI93882C (fi)	1995-06-12	Menetelmä paperin valmistamiseksi
CA2179116C (fr)	2001-08-14	Procede de fabrication de papier
CA1337732C (fr)	1995-12-19	Procede de fabrication de papier
NO174783B (no)	1994-03-28	Fremgangsmåte ved fremstilling av papir