NO843919L - Fremgangsmaate ved fremstilling av tremasse - Google Patents

Fremgangsmaate ved fremstilling av tremasse

Info

Publication number: NO843919L
Authority: NO; Norway
Prior art keywords: pulp; wood; triazine; melamine; paper
Prior art date: 1983-09-30

Application number

NO843919A

Other languages

English (en)

Norwegian (no)

Inventor

G Graham Allan

Original Assignee

Melamine Chemicals Inc

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.)

1983-09-30

Filing date

1984-09-28

Publication date

1985-04-01

1983-09-30 Priority claimed from US06/537,876 external-priority patent/US4487656A/en

1984-09-28 Application filed by Melamine Chemicals Inc filed Critical Melamine Chemicals Inc

1985-04-01 Publication of NO843919L publication Critical patent/NO843919L/no

Links

238000000034 method Methods 0.000 title claims description 49
238000004519 manufacturing process Methods 0.000 title description 25
229920001131 Pulp (paper) Polymers 0.000 claims description 42
JIHQDMXYYFUGFV-UHFFFAOYSA-N 1,3,5-triazine Chemical compound C1=NC=NC=N1 JIHQDMXYYFUGFV-UHFFFAOYSA-N 0.000 claims description 37
239000002023 wood Substances 0.000 claims description 26
238000004061 bleaching Methods 0.000 claims description 22
238000011282 treatment Methods 0.000 claims description 20
229920005610 lignin Polymers 0.000 claims description 16
239000000463 material Substances 0.000 claims description 13
238000007670 refining Methods 0.000 claims description 12
-1 s-triazine compound Chemical class 0.000 claims description 12
229920002678 cellulose Polymers 0.000 claims description 11
239000001913 cellulose Substances 0.000 claims description 11
238000001311 chemical methods and process Methods 0.000 claims description 9
239000000203 mixture Substances 0.000 claims description 5
238000006243 chemical reaction Methods 0.000 claims description 3
238000012546 transfer Methods 0.000 claims description 3
230000003993 interaction Effects 0.000 claims 1
229920000877 Melamine resin Polymers 0.000 description 55
JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 55
239000000654 additive Substances 0.000 description 54
230000000996 additive effect Effects 0.000 description 44
239000000123 paper Substances 0.000 description 42
230000008569 process Effects 0.000 description 31
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
239000000835 fiber Substances 0.000 description 12
230000000694 effects Effects 0.000 description 10
239000000126 substance Substances 0.000 description 10
238000002474 experimental method Methods 0.000 description 9
230000000930 thermomechanical effect Effects 0.000 description 9
LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 8
238000004537 pulping Methods 0.000 description 8
239000002655 kraft paper Substances 0.000 description 7
238000007639 printing Methods 0.000 description 7
229920003043 Cellulose fiber Polymers 0.000 description 6
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 6
239000002002 slurry Substances 0.000 description 6
241000218657 Picea Species 0.000 description 5
239000003153 chemical reaction reagent Substances 0.000 description 5
239000000049 pigment Substances 0.000 description 5
230000000717 retained effect Effects 0.000 description 5
150000003839 salts Chemical class 0.000 description 5
239000003381 stabilizer Substances 0.000 description 5
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
239000003795 chemical substances by application Substances 0.000 description 4
238000005660 chlorination reaction Methods 0.000 description 4
239000000460 chlorine Substances 0.000 description 4
229910052801 chlorine Inorganic materials 0.000 description 4
230000029087 digestion Effects 0.000 description 4
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 4
239000000975 dye Substances 0.000 description 4
238000000227 grinding Methods 0.000 description 4
230000014759 maintenance of location Effects 0.000 description 4
238000004064 recycling Methods 0.000 description 4
241000196324 Embryophyta Species 0.000 description 3
229920002488 Hemicellulose Polymers 0.000 description 3
238000010521 absorption reaction Methods 0.000 description 3
MASBWURJQFFLOO-UHFFFAOYSA-N ammeline Chemical compound NC1=NC(N)=NC(O)=N1 MASBWURJQFFLOO-UHFFFAOYSA-N 0.000 description 3
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
230000000052 comparative effect Effects 0.000 description 3
IQFVPQOLBLOTPF-HKXUKFGYSA-L congo red Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(/N=N/C3=CC=C(C=C3)C3=CC=C(C=C3)/N=N/C3=C(C4=CC=CC=C4C(=C3)S([O-])(=O)=O)N)=CC(S([O-])(=O)=O)=C21 IQFVPQOLBLOTPF-HKXUKFGYSA-L 0.000 description 3
239000004519 grease Substances 0.000 description 3
238000003801 milling Methods 0.000 description 3
239000001301 oxygen Substances 0.000 description 3
229910052760 oxygen Inorganic materials 0.000 description 3
BHMLFPOTZYRDKA-IRXDYDNUSA-N (2s)-2-[(s)-(2-iodophenoxy)-phenylmethyl]morpholine Chemical compound IC1=CC=CC=C1O[C@@H](C=1C=CC=CC=1)[C@H]1OCCNC1 BHMLFPOTZYRDKA-IRXDYDNUSA-N 0.000 description 2
239000004155 Chlorine dioxide Substances 0.000 description 2
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
229920002522 Wood fibre Polymers 0.000 description 2
230000009286 beneficial effect Effects 0.000 description 2
239000007844 bleaching agent Substances 0.000 description 2
239000004202 carbamide Substances 0.000 description 2
235000019398 chlorine dioxide Nutrition 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
230000003287 optical effect Effects 0.000 description 2
230000000704 physical effect Effects 0.000 description 2
239000000985 reactive dye Substances 0.000 description 2
239000011780 sodium chloride Substances 0.000 description 2
NGTPJMOILNSFNN-UHFFFAOYSA-N sulfurous acid;1,3,5-triazine-2,4,6-triamine Chemical compound OS(O)=O.NC1=NC(N)=NC(N)=N1 NGTPJMOILNSFNN-UHFFFAOYSA-N 0.000 description 2
238000010998 test method Methods 0.000 description 2
238000012360 testing method Methods 0.000 description 2
238000005406 washing Methods 0.000 description 2
239000002025 wood fiber Substances 0.000 description 2
HPJKLCJJNFVOEM-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;hydrochloride Chemical compound Cl.NC1=NC(N)=NC(N)=N1 HPJKLCJJNFVOEM-UHFFFAOYSA-N 0.000 description 1
YZEZMSPGIPTEBA-UHFFFAOYSA-N 2-n-(4,6-diamino-1,3,5-triazin-2-yl)-1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(NC=2N=C(N)N=C(N)N=2)=N1 YZEZMSPGIPTEBA-UHFFFAOYSA-N 0.000 description 1
241000208140 Acer Species 0.000 description 1
GYIMANCNTLUKJZ-UHFFFAOYSA-N Cl(=O)(=O)O.N1=C(N)N=C(N)N=C1N Chemical compound Cl(=O)(=O)O.N1=C(N)N=C(N)N=C1N GYIMANCNTLUKJZ-UHFFFAOYSA-N 0.000 description 1
241000158728 Meliaceae Species 0.000 description 1
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
241000018646 Pinus brutia Species 0.000 description 1
235000011613 Pinus brutia Nutrition 0.000 description 1
235000008566 Pinus taeda Nutrition 0.000 description 1
241000218679 Pinus taeda Species 0.000 description 1
241000219000 Populus Species 0.000 description 1
241000219492 Quercus Species 0.000 description 1
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
239000004115 Sodium Silicate Substances 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
YSKUZVBSHIWEFK-UHFFFAOYSA-N ammelide Chemical compound NC1=NC(O)=NC(O)=N1 YSKUZVBSHIWEFK-UHFFFAOYSA-N 0.000 description 1
238000004458 analytical method Methods 0.000 description 1
239000012736 aqueous medium Substances 0.000 description 1
230000008901 benefit Effects 0.000 description 1
230000009172 bursting Effects 0.000 description 1
230000015556 catabolic process Effects 0.000 description 1
MCVOMSJPVOAICS-UHFFFAOYSA-N chlorous acid 1,3,5-triazine-2,4,6-triamine Chemical compound Cl(=O)O.N1=C(N)N=C(N)N=C1N MCVOMSJPVOAICS-UHFFFAOYSA-N 0.000 description 1
238000004040 coloring Methods 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
238000010411 cooking Methods 0.000 description 1
238000006731 degradation reaction Methods 0.000 description 1
BMAUDWDYKLUBPY-UHFFFAOYSA-L disodium;3-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-2-methylphenyl]diazenyl]naphthalene-1,5-disulfonate Chemical compound [Na+].[Na+].C=1C=C(N=NC=2C=C3C(=CC=CC3=C(C=2)S([O-])(=O)=O)S([O-])(=O)=O)C(C)=CC=1NC1=NC(Cl)=NC(Cl)=N1 BMAUDWDYKLUBPY-UHFFFAOYSA-L 0.000 description 1
238000000605 extraction Methods 0.000 description 1
239000000945 filler Substances 0.000 description 1
230000005484 gravity Effects 0.000 description 1
239000011121 hardwood Substances 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
WMRHTANUAUKEGF-UHFFFAOYSA-N hypochlorous acid 1,3,5-triazine-2,4,6-triamine Chemical compound ClO.N1=C(N)N=C(N)N=C1N WMRHTANUAUKEGF-UHFFFAOYSA-N 0.000 description 1
238000011835 investigation Methods 0.000 description 1
235000000396 iron Nutrition 0.000 description 1
229910052943 magnesium sulfate Inorganic materials 0.000 description 1
235000019341 magnesium sulphate Nutrition 0.000 description 1
150000007974 melamines Chemical class 0.000 description 1
CSGNMMLYYZTWBB-UHFFFAOYSA-N nitric acid;1,3,5-triazine-2,4,6-triamine Chemical compound O[N+]([O-])=O.NC1=NC(N)=NC(N)=N1 CSGNMMLYYZTWBB-UHFFFAOYSA-N 0.000 description 1
239000003973 paint Substances 0.000 description 1
239000002245 particle Substances 0.000 description 1
ZFPPQTYHQHJOOI-UHFFFAOYSA-N perchloric acid;1,3,5-triazine-2,4,6-triamine Chemical compound [O-]Cl(=O)(=O)=O.NC1=NC(N)=[NH+]C(N)=N1 ZFPPQTYHQHJOOI-UHFFFAOYSA-N 0.000 description 1
XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 description 1
238000012805 post-processing Methods 0.000 description 1
239000003223 protective agent Substances 0.000 description 1
239000013055 pulp slurry Substances 0.000 description 1
230000009467 reduction Effects 0.000 description 1
239000012260 resinous material Substances 0.000 description 1
238000000926 separation method Methods 0.000 description 1
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
229910052911 sodium silicate Inorganic materials 0.000 description 1
GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
239000011122 softwood Substances 0.000 description 1
241000894007 species Species 0.000 description 1
238000003892 spreading Methods 0.000 description 1
230000007480 spreading Effects 0.000 description 1
230000003068 static effect Effects 0.000 description 1
125000001424 substituent group Chemical group 0.000 description 1
VOVCASRUQMXLSQ-UHFFFAOYSA-N sulfamic acid;1,3,5-triazine-2,4,6-triamine Chemical compound NS(O)(=O)=O.NC1=NC(N)=NC(N)=N1 VOVCASRUQMXLSQ-UHFFFAOYSA-N 0.000 description 1
FDDDEECHVMSUSB-UHFFFAOYSA-N sulfanilamide Chemical compound NC1=CC=C(S(N)(=O)=O)C=C1 FDDDEECHVMSUSB-UHFFFAOYSA-N 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
229940124530 sulfonamide Drugs 0.000 description 1
LTURHSAEWJPFAA-UHFFFAOYSA-N sulfuric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OS(O)(=O)=O.NC1=NC(N)=NC(N)=N1 LTURHSAEWJPFAA-UHFFFAOYSA-N 0.000 description 1
229910021653 sulphate ion Inorganic materials 0.000 description 1
239000000725 suspension Substances 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
- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/07—Nitrogen-containing compounds
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
- 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
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Wood Science & Technology (AREA)
Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Mechanical Engineering (AREA)
Paper (AREA)
Preparing Plates And Mask In Photomechanical Process (AREA)
Prostheses (AREA)

NO843919A 1983-09-30 1984-09-28 Fremgangsmaate ved fremstilling av tremasse NO843919L (no)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US53792783A	1983-09-30	1983-09-30
US53792683A	1983-09-30	1983-09-30
US06/537,876 US4487656A (en)	1983-09-30	1983-09-30	Process for bleaching paper pulp using melamine as a viscosity stabilizer
US65175184A	1984-09-19	1984-09-19

Publications (1)

Publication Number	Publication Date
NO843919L true NO843919L (no)	1985-04-01

Family

ID=27504668

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO843919A NO843919L (no)	1983-09-30	1984-09-28	Fremgangsmaate ved fremstilling av tremasse

Country Status (10)

Country	Link
AT (1)	ATA310984A (fr)
BR (1)	BR8404914A (fr)
DE (1)	DE3436015A1 (fr)
FI (1)	FI74082C (fr)
FR (1)	FR2552792B1 (fr)
GB (1)	GB2148344B (fr)
IT (1)	IT1180236B (fr)
NO (1)	NO843919L (fr)
NZ (1)	NZ209708A (fr)
SE (1)	SE464031B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4230656A1 (de) *	1992-09-14	1994-03-17	Ciba Geigy	Verfahren zur Verbesserung von Weissgrad, Helligkeit und Farbort von Füllstoffen und Pigmenten
DE4230655A1 (de) *	1992-09-14	1994-03-17	Ciba Geigy	Verfahren zur Verbesserung von Weißgrad, Helligkeit und Farbort von Faserstoffen
CN115110329A (zh) *	2022-06-28	2022-09-27	中国制浆造纸研究院有限公司	一种降低漂白段纸浆中金属含量和灰分含量的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB600961A (en) *	1944-09-20	1948-04-23	Du Pont	Improvements in or relating to the impregnation of wood with urea-formaldehyde resins
BE566286A (fr) *	1957-04-02
FR1281896A (fr) *	1960-09-07	1962-01-19	Westinghouse Electric Corp	Procédé de stabilisation d'isolation cellulosique en contact avec des diélectriques liquides
GB1500599A (en) *	1975-11-28	1978-02-08	Koppers Co Inc	Compositions for imparting fire retardance to wood

1984
- 1984-09-28 SE SE8404867A patent/SE464031B/sv not_active IP Right Cessation
- 1984-09-28 FI FI843831A patent/FI74082C/fi not_active IP Right Cessation
- 1984-09-28 IT IT22893/84A patent/IT1180236B/it active
- 1984-09-28 FR FR8415011A patent/FR2552792B1/fr not_active Expired
- 1984-09-28 GB GB08424540A patent/GB2148344B/en not_active Expired
- 1984-09-28 NZ NZ209708A patent/NZ209708A/xx unknown
- 1984-09-28 BR BR8404914A patent/BR8404914A/pt unknown
- 1984-09-28 NO NO843919A patent/NO843919L/no unknown
- 1984-10-01 DE DE19843436015 patent/DE3436015A1/de active Granted
- 1984-10-01 AT AT843109A patent/ATA310984A/de not_active Application Discontinuation

Also Published As

Publication number	Publication date
BR8404914A (pt)	1985-08-20
IT8422893A0 (it)	1984-09-28
FR2552792A1 (fr)	1985-04-05
ATA310984A (de)	1991-11-15
SE8404867L (sv)	1985-03-31
DE3436015A1 (de)	1985-05-02
FI843831A0 (fi)	1984-09-28
NZ209708A (en)	1988-08-30
FI74082C (fi)	1987-12-10
SE8404867D0 (sv)	1984-09-28
DE3436015C2 (fr)	1990-03-08
FI74082B (fi)	1987-08-31
SE464031B (sv)	1991-02-25
FR2552792B1 (fr)	1987-01-09
GB8424540D0 (en)	1984-11-07
GB2148344B (en)	1987-04-15
IT1180236B (it)	1987-09-23
GB2148344A (en)	1985-05-30
FI843831L (fi)	1985-03-31

Publication	Publication Date	Title
CA1272563A (fr)	1990-08-14	Methode de fabrication de pate de fibres blanchie de type chimiomecanique et semi-chemique par un procede d'impregnation a une etape
NO147037B (no)	1982-10-11	Fremgangsmaate ved fremstilling av cellulosemasse
GB2227759A (en)	1990-08-08	Hydrogen peroxide bleaching process
US4552616A (en)	1985-11-12	Pulping process pretreatment using a lower alkanolamine in the presence of ammonium hydroxide
NO143298B (no)	1980-10-06	Friserapparat.
NO160219B (no)	1988-12-12	Fremgangsmaate for vasking av ubleket cellulosemasse ved fremstilling av cellulosemasse fra lignocelluloseholdige materialer.
CA1099456A (fr)	1981-04-21	Methode permettant de secher la pate mecanique et, simultanement, d'en ameliorer la resistance et la couleur
CN102197174A (zh)	2011-09-21	制备造纸纸浆的方法
US3919041A (en)	1975-11-11	Multi-stage chlorine dioxide delignification of wood pulp
JP2009540132A (ja)	2009-11-19	パルプの製造方法
NO152096B (no)	1985-04-22	Fremgangsmaate for fremstilling av xantan ved kontinuerlig dyrking av polysakkaridproduserende bakterier
NO160325B (no)	1989-01-02	Demonterbar stolfot.
NO166098B (no)	1991-02-18	Hjoerneforbindelse.
NO843919L (no)	1985-04-01	Fremgangsmaate ved fremstilling av tremasse
US2527563A (en)	1950-10-31	Method of bleaching semichemical pulps
US4699691A (en)	1987-10-13	Thermomechanical digestion process
JPS6262196B2 (fr)	1987-12-25
USRE28777E (en)	1976-04-20	Refining of vegetable matter and delignification of the refined matter with chlorine dioxide
US3591451A (en)	1971-07-06	Pretreatment of vegetable matter and delignification of the refined matter with chloring dioxide
NO152342B (no)	1985-06-03	Fremgangsmaate til delignifisering av lignocellulosemateriale med alkalisk vaeske i naervaer av et additiv
JP2526561B2 (ja)	1996-08-21	ケミカル爆砕法によるパルプ化方法
US2906659A (en)	1959-09-29	High yields bisulphite pulping process
EP0957198A1 (fr)	1999-11-17	Procédé chimique de réduction en pâte
NO760232L (fr)	1976-07-28
US2956918A (en)	1960-10-18	Chemically assisted mechanical wood pulp