CA1164704A - Method for improving the washing of cellulose pulps - Google Patents
Method for improving the washing of cellulose pulpsInfo
- Publication number
- CA1164704A CA1164704A CA000394153A CA394153A CA1164704A CA 1164704 A CA1164704 A CA 1164704A CA 000394153 A CA000394153 A CA 000394153A CA 394153 A CA394153 A CA 394153A CA 1164704 A CA1164704 A CA 1164704A
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- washing
- stage
- press
- screw
- 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
Links
- 238000005406 washing Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 41
- 229920002678 cellulose Polymers 0.000 title claims abstract description 20
- 239000001913 cellulose Substances 0.000 title claims abstract description 20
- 239000000725 suspension Substances 0.000 claims abstract description 60
- 239000002699 waste material Substances 0.000 claims abstract description 35
- 239000000126 substance Substances 0.000 claims abstract description 27
- 238000011282 treatment Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims description 17
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000004537 pulping Methods 0.000 claims description 6
- 239000012978 lignocellulosic material Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000010006 flight Effects 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims 1
- 239000000356 contaminant Substances 0.000 abstract description 3
- 239000011368 organic material Substances 0.000 abstract description 3
- 239000011734 sodium Substances 0.000 description 8
- 239000000446 fuel Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 5
- 241000218657 Picea Species 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 238000004061 bleaching Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 235000018185 Betula X alpestris Nutrition 0.000 description 3
- 235000018212 Betula X uliginosa Nutrition 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003265 pulping liquor Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-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
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241000543381 Cliftonia monophylla Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 244000228957 Ferula foetida Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010936 aqueous wash Methods 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000009896 oxidative bleaching Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002351 wastewater Substances 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/40—Washing the fibres
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Peptides Or Proteins (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8100179-4 | 1981-01-14 | ||
| SE8100179A SE443383C (sv) | 1981-01-14 | 1981-01-14 | Forfarande for tvettning av cellulosamassa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1164704A true CA1164704A (en) | 1984-04-03 |
Family
ID=20342871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000394153A Expired CA1164704A (en) | 1981-01-14 | 1982-01-14 | Method for improving the washing of cellulose pulps |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0056263B1 (enrdf_load_html_response) |
| JP (1) | JPS57139591A (enrdf_load_html_response) |
| AT (1) | ATE14762T1 (enrdf_load_html_response) |
| AU (1) | AU548277B2 (enrdf_load_html_response) |
| CA (1) | CA1164704A (enrdf_load_html_response) |
| DE (1) | DE3265116D1 (enrdf_load_html_response) |
| FI (1) | FI69656C (enrdf_load_html_response) |
| NO (1) | NO160219C (enrdf_load_html_response) |
| SE (1) | SE443383C (enrdf_load_html_response) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4971658A (en) * | 1986-12-17 | 1990-11-20 | A. Ahlstrom Corporation | Method of intensifying the washing of a fiber suspension |
| US5554259A (en) | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE445051B (sv) * | 1980-04-10 | 1986-05-26 | Sca Development Ab | Sett vid tillverkning av mekanisk, i huvudsak hartsfri cellulosamassa |
| FI81136C (fi) * | 1987-11-11 | 1990-09-10 | Ahlstroem Oy | Foerfarande och anordning foer behandling av massa. |
| DE60129538T2 (de) | 2000-03-14 | 2008-04-10 | James Hardie International Finance B.V. | Faserzementbaumaterialien mit zusatzstoffen niedriger dichte |
| KR100855848B1 (ko) | 2000-10-04 | 2008-09-01 | 제임스 하디 인터내셔널 파이낸스 비.브이. | 사이징된 셀룰로즈 섬유를 이용한 섬유 시멘트 복합 재료 |
| EP1574614B1 (en) | 2000-10-17 | 2015-11-11 | James Hardie Technology Limited | Method for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials |
| NZ525393A (en) * | 2000-10-17 | 2006-03-31 | James Hardie Int Finance Bv | Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials |
| PL370668A1 (en) | 2001-03-09 | 2005-05-30 | James Hardie Research Pty.Limited | Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility |
| US7993570B2 (en) | 2002-10-07 | 2011-08-09 | James Hardie Technology Limited | Durable medium-density fibre cement composite |
| NZ541250A (en) | 2003-01-09 | 2008-09-26 | James Hardie Int Finance Bv | Fibre cement composite materials using bleached cellulose fibres |
| US7998571B2 (en) | 2004-07-09 | 2011-08-16 | James Hardie Technology Limited | Composite cement article incorporating a powder coating and methods of making same |
| EP2010730A4 (en) | 2006-04-12 | 2013-07-17 | Hardie James Technology Ltd | SURFACE-SEALED, REINFORCED BUILDING ELEMENT |
| DE102007036377A1 (de) * | 2007-07-31 | 2009-02-05 | Voith Patent Gmbh | Einsatz von Wasch- und Schneckenpressen für die Rohmaterial- und Faserstoffwäsche |
| US8209927B2 (en) | 2007-12-20 | 2012-07-03 | James Hardie Technology Limited | Structural fiber cement building materials |
| SE538262C2 (sv) | 2014-06-26 | 2016-04-19 | Valmet Oy | Arrangemang för matning och tvättning av lignocellulosahaltigt material och system för tvåstegsanalys innefattandearrangemanget |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2451963A1 (fr) * | 1979-03-22 | 1980-10-17 | Creusot Loire | Procede et installation de preparation et de lavage d'une pate a papier a partir d'une matiere lignocellulosique reduite en morceaux |
-
1981
- 1981-01-14 SE SE8100179A patent/SE443383C/sv not_active IP Right Cessation
-
1982
- 1982-01-04 FI FI820005A patent/FI69656C/fi not_active IP Right Cessation
- 1982-01-05 AU AU79175/82A patent/AU548277B2/en not_active Ceased
- 1982-01-08 DE DE8282100102T patent/DE3265116D1/de not_active Expired
- 1982-01-08 EP EP82100102A patent/EP0056263B1/en not_active Expired
- 1982-01-08 AT AT82100102T patent/ATE14762T1/de not_active IP Right Cessation
- 1982-01-13 NO NO820095A patent/NO160219C/no unknown
- 1982-01-14 JP JP57004819A patent/JPS57139591A/ja active Granted
- 1982-01-14 CA CA000394153A patent/CA1164704A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4971658A (en) * | 1986-12-17 | 1990-11-20 | A. Ahlstrom Corporation | Method of intensifying the washing of a fiber suspension |
| US5554259A (en) | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
Also Published As
| Publication number | Publication date |
|---|---|
| AU7917582A (en) | 1982-07-22 |
| FI69656B (fi) | 1985-11-29 |
| NO820095L (no) | 1982-07-15 |
| DE3265116D1 (en) | 1985-09-12 |
| SE8100179L (sv) | 1982-07-15 |
| NO160219B (no) | 1988-12-12 |
| SE443383C (sv) | 1987-11-16 |
| JPS63557B2 (enrdf_load_html_response) | 1988-01-07 |
| AU548277B2 (en) | 1985-12-05 |
| EP0056263A1 (en) | 1982-07-21 |
| FI820005L (fi) | 1982-07-15 |
| NO160219C (no) | 1989-03-22 |
| FI69656C (fi) | 1991-12-24 |
| SE443383B (sv) | 1986-02-24 |
| ATE14762T1 (de) | 1985-08-15 |
| JPS57139591A (en) | 1982-08-28 |
| EP0056263B1 (en) | 1985-08-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |