FI63793C - Alkalipressning av cellulosamassa - Google Patents
Alkalipressning av cellulosamassa Download PDFInfo
- Publication number
- FI63793C FI63793C FI3043/73A FI304373A FI63793C FI 63793 C FI63793 C FI 63793C FI 3043/73 A FI3043/73 A FI 3043/73A FI 304373 A FI304373 A FI 304373A FI 63793 C FI63793 C FI 63793C
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- consistency
- cellulose
- extraction
- mixture
- Prior art date
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 177
- 238000000605 extraction Methods 0.000 claims description 57
- 239000000203 mixture Substances 0.000 claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 29
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 26
- 239000003513 alkali Substances 0.000 claims description 20
- 238000004061 bleaching Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 16
- 239000000460 chlorine Substances 0.000 claims description 14
- 229910052801 chlorine Inorganic materials 0.000 claims description 14
- 239000004155 Chlorine dioxide Substances 0.000 claims description 13
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 13
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 11
- 239000007864 aqueous solution Substances 0.000 claims description 11
- 238000005660 chlorination reaction Methods 0.000 claims description 11
- 239000011122 softwood Substances 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 8
- NHYCGSASNAIGLD-UHFFFAOYSA-N Chlorine monoxide Chemical compound Cl[O] NHYCGSASNAIGLD-UHFFFAOYSA-N 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 150000002978 peroxides Chemical class 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 229910001919 chlorite Inorganic materials 0.000 claims 1
- 229910052619 chlorite group Inorganic materials 0.000 claims 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 239000000376 reactant Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 description 67
- 239000001913 cellulose Substances 0.000 description 67
- 230000006835 compression Effects 0.000 description 44
- 238000007906 compression Methods 0.000 description 44
- 239000008367 deionised water Substances 0.000 description 27
- 229910021641 deionized water Inorganic materials 0.000 description 27
- 238000012360 testing method Methods 0.000 description 25
- 238000002203 pretreatment Methods 0.000 description 23
- 239000007788 liquid Substances 0.000 description 20
- 239000000243 solution Substances 0.000 description 20
- 238000005406 washing Methods 0.000 description 13
- 238000003825 pressing Methods 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 239000000835 fiber Substances 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 229920001131 Pulp (paper) Polymers 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229910021653 sulphate ion Inorganic materials 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011121 hardwood Substances 0.000 description 4
- 239000002655 kraft paper Substances 0.000 description 4
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- -1 dichromates Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- OCKGFTQIICXDQW-ZEQRLZLVSA-N 5-[(1r)-1-hydroxy-2-[4-[(2r)-2-hydroxy-2-(4-methyl-1-oxo-3h-2-benzofuran-5-yl)ethyl]piperazin-1-yl]ethyl]-4-methyl-3h-2-benzofuran-1-one Chemical compound C1=C2C(=O)OCC2=C(C)C([C@@H](O)CN2CCN(CC2)C[C@H](O)C2=CC=C3C(=O)OCC3=C2C)=C1 OCKGFTQIICXDQW-ZEQRLZLVSA-N 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical class CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- IBIKHMZPHNKTHM-RDTXWAMCSA-N merck compound 25 Chemical compound C1C[C@@H](C(O)=O)[C@H](O)CN1C(C1=C(F)C=CC=C11)=NN1C(=O)C1=C(Cl)C=CC=C1C1CC1 IBIKHMZPHNKTHM-RDTXWAMCSA-N 0.000 description 1
- 238000009896 oxidative bleaching Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 238000001665 trituration Methods 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
- D21C9/1026—Other features in bleaching processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Medicines Containing Plant Substances (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA152905 | 1972-09-29 | ||
| CA152,905A CA973661A (en) | 1972-09-29 | 1972-09-29 | Press alkaline extraction of cellulosic pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI63793B FI63793B (fi) | 1983-04-29 |
| FI63793C true FI63793C (fi) | 1983-08-10 |
Family
ID=4094565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI3043/73A FI63793C (fi) | 1972-09-29 | 1973-09-28 | Alkalipressning av cellulosamassa |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3874992A (OSRAM) |
| JP (1) | JPS5214326B2 (OSRAM) |
| AR (1) | AR201116A1 (OSRAM) |
| BR (1) | BR7307566D0 (OSRAM) |
| CA (1) | CA973661A (OSRAM) |
| FI (1) | FI63793C (OSRAM) |
| FR (1) | FR2201369B1 (OSRAM) |
| NO (1) | NO141617C (OSRAM) |
| SE (1) | SE405488B (OSRAM) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE415581B (sv) * | 1977-04-18 | 1980-10-13 | Mo Och Domsjoe Ab | Forfarande for perocidblekning av hogutbytesmassa |
| US4238281A (en) * | 1979-04-30 | 1980-12-09 | Canadian International Paper Company | Simplified bleaching process |
| US4806203A (en) * | 1985-02-14 | 1989-02-21 | Elton Edward F | Method for alkaline delignification of lignocellulosic fibrous material at a consistency which is raised during reaction |
| US5085734A (en) * | 1989-02-15 | 1992-02-04 | Union Camp Patent Holding, Inc. | Methods of high consistency oxygen delignification using a low consistency alkali pretreatment |
| US5409570A (en) * | 1989-02-15 | 1995-04-25 | Union Camp Patent Holding, Inc. | Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone |
| US5525195A (en) * | 1989-02-15 | 1996-06-11 | Union Camp Patent Holding, Inc. | Process for high consistency delignification using a low consistency alkali pretreatment |
| US5211811A (en) * | 1989-02-15 | 1993-05-18 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification |
| US5173153A (en) * | 1991-01-03 | 1992-12-22 | Union Camp Patent Holding, Inc. | Process for enhanced oxygen delignification using high consistency and a split alkali addition |
| US5188708A (en) * | 1989-02-15 | 1993-02-23 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification followed by ozone relignification |
| US5217574A (en) * | 1989-02-15 | 1993-06-08 | Union Camp Patent Holdings Inc. | Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp |
| US5011572A (en) * | 1989-05-19 | 1991-04-30 | Fmc Corporation | Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage |
| FI85293C (sv) * | 1990-05-04 | 1992-03-25 | Poeyry Jaakko & Co Oy | Förfarande för rening och återföring av cellulosafabrikers blekeriavva tten |
| US5164043A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
| US5441603A (en) * | 1990-05-17 | 1995-08-15 | Union Camp Patent Holding, Inc. | Method for chelation of pulp prior to ozone delignification |
| US5164044A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
| 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 |
| US5728264A (en) * | 1995-10-25 | 1998-03-17 | Union Camp Patent Holding, Inc. | Avoidance of salt scaling by acidic pulp washing process |
| EP1226179A4 (en) * | 1999-07-02 | 2002-10-29 | Mendell Co Inc Edward | Treatment of pulp to produce microcrystalline cellulose |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2882965A (en) * | 1955-02-23 | 1959-04-21 | Columbia Cellulose Company Ltd | High viscosity, high percentage alpha cellulose from sulfite pulp |
| SE314286B (OSRAM) * | 1964-08-07 | 1969-09-01 | Pulp Paper Res Inst | |
| CA834629A (en) * | 1966-09-30 | 1970-02-17 | Amiel W. Brinkley, Jr. | Rapid high consistency bleaching of pulp |
| US3632469A (en) * | 1969-06-05 | 1972-01-04 | Ethyl Corp | Process for the manufacture of dissolving grade pulp |
-
1972
- 1972-09-29 CA CA152,905A patent/CA973661A/en not_active Expired
-
1973
- 1973-09-20 US US399331A patent/US3874992A/en not_active Expired - Lifetime
- 1973-09-21 NO NO3724/73A patent/NO141617C/no unknown
- 1973-09-27 SE SE7313168A patent/SE405488B/xx unknown
- 1973-09-28 BR BR7566/73A patent/BR7307566D0/pt unknown
- 1973-09-28 JP JP48110105A patent/JPS5214326B2/ja not_active Expired
- 1973-09-28 FR FR7334891A patent/FR2201369B1/fr not_active Expired
- 1973-09-28 AR AR250290A patent/AR201116A1/es active
- 1973-09-28 FI FI3043/73A patent/FI63793C/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| CA973661A (en) | 1975-09-02 |
| DE2347398A1 (de) | 1974-04-04 |
| FR2201369B1 (OSRAM) | 1977-03-11 |
| NO141617B (no) | 1980-01-02 |
| AR201116A1 (es) | 1975-02-14 |
| FI63793B (fi) | 1983-04-29 |
| FR2201369A1 (OSRAM) | 1974-04-26 |
| BR7307566D0 (pt) | 1974-09-05 |
| DE2347398B2 (de) | 1977-01-13 |
| JPS5214326B2 (OSRAM) | 1977-04-21 |
| NO141617C (no) | 1980-04-09 |
| SE405488B (sv) | 1978-12-11 |
| US3874992A (en) | 1975-04-01 |
| JPS4971202A (OSRAM) | 1974-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI63793C (fi) | Alkalipressning av cellulosamassa | |
| FI67242B (fi) | Saett att avlaegsna lignin fraon oblekt kemisk pappersmassa | |
| JPS61138793A (ja) | 強化酸化抽出法 | |
| US4076579A (en) | Pulping of lignocellulosic material by sequential treatment thereof with nitric oxide and oxygen | |
| NO130776B (OSRAM) | ||
| CA1180509A (en) | Process for activating cellulose pulp with no and/or no.sub.2 and oxygen in the presence of nitric acid and then delignifying bleaching the activated cellulose pulp | |
| FI105213B (fi) | Menetelmä valkaistun massan valmistamiseksi lignoselluloosamateriaalista | |
| NO143298B (no) | Friserapparat. | |
| CA2031848C (en) | Method of bleaching pulp | |
| FI67891C (fi) | Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan | |
| US3919041A (en) | Multi-stage chlorine dioxide delignification of wood pulp | |
| RU2439232C2 (ru) | Способ отбеливания бумажной целлюлозной массы путем конечной обработки озоном при высокой температуре | |
| WO1995009945A1 (en) | Method of treating chemical paper pulp without using chlorine-containing chemicals | |
| Jahan et al. | Comparative study on the prebleaching of bamboo and hardwood pulps produced in Kharnaphuli Paper Mills | |
| US3884752A (en) | Single vessel wood pulp bleaching with chlorine dioxide followed by sodium hypochlorite or alkaline extraction | |
| US5645687A (en) | Process for manufacturing bleached pulp with reduced chloride production | |
| AU732875B2 (en) | Process for bleaching a paper pulp with ozone and chlorine dioxide | |
| USRE28884E (en) | Woodpulp bleaching process | |
| CA2031850C (en) | Method of bleaching pulp | |
| JPH0726350B2 (ja) | パルプの高脱リグニン選択性を得る方法 | |
| CA2405325A1 (en) | A method for controlling the delignification and bleaching of a pulp suspension | |
| CA2311718A1 (en) | Oxygen delignification of lignocellulosic material | |
| WO1988001661A1 (en) | Pulp bleaching process | |
| Colodette et al. | Progress in eucalyptus kraft pulp bleaching | |
| US2001268A (en) | Pulp treating process |