CA1051151A - Apparatus and process for producing kraft type pulp - Google Patents
Apparatus and process for producing kraft type pulpInfo
- Publication number
- CA1051151A CA1051151A CA217,492A CA217492A CA1051151A CA 1051151 A CA1051151 A CA 1051151A CA 217492 A CA217492 A CA 217492A CA 1051151 A CA1051151 A CA 1051151A
- Authority
- CA
- Canada
- Prior art keywords
- hot
- pulp
- kraft
- disc
- black liquor
- 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
- 239000002655 kraft paper Substances 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims description 20
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 20
- 239000002657 fibrous material Substances 0.000 claims abstract description 14
- 238000007670 refining Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000010025 steaming Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 28
- 239000000126 substance Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 9
- 230000003028 elevating effect Effects 0.000 claims description 4
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 4
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 3
- 229910020275 Na2Sx Inorganic materials 0.000 claims description 2
- 229920001021 polysulfide Polymers 0.000 claims description 2
- 239000005077 polysulfide Substances 0.000 claims description 2
- 150000008117 polysulfides Polymers 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000011369 resultant mixture Substances 0.000 claims 2
- 238000003825 pressing Methods 0.000 claims 1
- 239000000123 paper Substances 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 17
- 239000002023 wood Substances 0.000 description 15
- 238000009434 installation Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 208000036366 Sensation of pressure Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 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 1
- 101150007148 THI5 gene Proteins 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- NQLVQOSNDJXLKG-UHFFFAOYSA-N prosulfocarb Chemical compound CCCN(CCC)C(=O)SCC1=CC=CC=C1 NQLVQOSNDJXLKG-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US456455A US3873412A (en) | 1974-04-01 | 1974-04-01 | Mechanically refining a mixture of kraft and semichemical pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1051151A true CA1051151A (en) | 1979-03-27 |
Family
ID=23812830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA217,492A Expired CA1051151A (en) | 1974-04-01 | 1975-01-07 | Apparatus and process for producing kraft type pulp |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3873412A (enrdf_load_stackoverflow) |
| JP (1) | JPS5313001B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1051151A (enrdf_load_stackoverflow) |
| FI (1) | FI750031A7 (enrdf_load_stackoverflow) |
| SE (1) | SE7500167L (enrdf_load_stackoverflow) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060450A (en) * | 1972-09-01 | 1977-11-29 | Westinghouse Electric Corporation | High yield saturating paper |
| SE413684C (sv) * | 1974-09-23 | 1987-05-18 | Mo Och Domsjoe Ab | Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 % |
| US4145246A (en) * | 1976-07-19 | 1979-03-20 | Crown Zellerbach Corporation | Process for making high-strength, high-yield sulfite-modified thermomechanical pulp and a linerboard composition produced therefrom |
| US4836892A (en) * | 1986-10-09 | 1989-06-06 | Union Camp Corporation | Pulp blends for linerboards |
| FI81396C (fi) * | 1988-10-25 | 1990-10-10 | Enso Gutzeit Oy | Foerfarande foer behandling av avfallsvatten fraon traefoeraedlingsindustrins massaframstaellningsprocesser. |
| FR2785917B1 (fr) * | 1998-11-16 | 2001-01-12 | Wood & Pulp Ltd | Procede et installation de production de pates a papier |
| US6899790B2 (en) * | 2000-03-06 | 2005-05-31 | Georgia-Pacific Corporation | Method of providing papermaking fibers with durable curl |
| US6627041B2 (en) * | 2000-03-06 | 2003-09-30 | Georgia-Pacific Corporation | Method of bleaching and providing papermaking fibers with durable curl |
| US7967948B2 (en) * | 2006-06-02 | 2011-06-28 | International Paper Company | Process for non-chlorine oxidative bleaching of mechanical pulp in the presence of optical brightening agents |
| US10724174B2 (en) | 2015-03-11 | 2020-07-28 | Andritz Inc. | Processes and systems for the pulping of lignocellulosic materials |
| WO2018026804A1 (en) | 2016-08-01 | 2018-02-08 | Domtar Paper Company, Llc | Surface enhanced pulp fibers at a substrate surface |
| US11499269B2 (en) | 2016-10-18 | 2022-11-15 | Domtar Paper Company Llc | Method for production of filler loaded surface enhanced pulp fibers |
| US11441271B2 (en) * | 2018-02-05 | 2022-09-13 | Domtar Paper Company Llc | Paper products and pulps with surface enhanced pulp fibers and increased absorbency, and methods of making same |
| WO2021061723A1 (en) | 2019-09-23 | 2021-04-01 | Domtar Paper Company, Llc | Tissues and paper towels incorporating surface enhanced pulp fibers and methods of making the same |
| WO2021061747A1 (en) | 2019-09-23 | 2021-04-01 | Domtar Paper Company, Llc | Paper products incorporating surface enhanced pulp fibers and having decoupled wet and dry strengths and methods of making the same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1372640A (en) * | 1919-11-17 | 1921-03-22 | Flintkote Co | Paper felt |
| US1847326A (en) * | 1928-01-28 | 1932-03-01 | Lewis L Alsted | Paper pulp and process of making same |
| US2660097A (en) * | 1949-04-16 | 1953-11-24 | Price Brothers & Company Ltd | Method of processing wood pulp |
| US3202569A (en) * | 1961-06-22 | 1965-08-24 | Johns Manville | Cold caustic fiberboard manufacture |
| US3827934A (en) * | 1971-06-28 | 1974-08-06 | Westvaco Corp | Process for producing high strength,high yield hardwood pulp |
| US3811995A (en) * | 1972-09-05 | 1974-05-21 | Westvaco Corp | Method of high yield semichemical pulp production |
-
1974
- 1974-04-01 US US456455A patent/US3873412A/en not_active Expired - Lifetime
-
1975
- 1975-01-07 CA CA217,492A patent/CA1051151A/en not_active Expired
- 1975-01-07 FI FI750031A patent/FI750031A7/fi not_active Application Discontinuation
- 1975-01-08 SE SE7500167A patent/SE7500167L/xx not_active Application Discontinuation
- 1975-01-22 JP JP966375A patent/JPS5313001B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50126901A (enrdf_load_stackoverflow) | 1975-10-06 |
| JPS5313001B2 (enrdf_load_stackoverflow) | 1978-05-06 |
| FI750031A7 (enrdf_load_stackoverflow) | 1975-10-02 |
| US3873412A (en) | 1975-03-25 |
| SE7500167L (enrdf_load_stackoverflow) | 1975-10-02 |
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