NO124219B - - Google Patents
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- Publication number
- NO124219B NO124219B NO1715/68A NO171568A NO124219B NO 124219 B NO124219 B NO 124219B NO 1715/68 A NO1715/68 A NO 1715/68A NO 171568 A NO171568 A NO 171568A NO 124219 B NO124219 B NO 124219B
- Authority
- NO
- Norway
- Prior art keywords
- parts
- weight
- naoh
- membranes
- nacl
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims description 17
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 15
- 239000003513 alkali Substances 0.000 claims description 6
- 150000001805 chlorine compounds Chemical class 0.000 claims description 4
- 239000003456 ion exchange resin Substances 0.000 claims description 2
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000003204 osmotic effect Effects 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 70
- 235000011121 sodium hydroxide Nutrition 0.000 description 25
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 239000011780 sodium chloride Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 6
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 4
- 229940044654 phenolsulfonic acid Drugs 0.000 description 4
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 229940018564 m-phenylenediamine Drugs 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000003014 ion exchange membrane Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- IWLBIFVMPLUHLK-UHFFFAOYSA-N azane;formaldehyde Chemical compound N.O=C IWLBIFVMPLUHLK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- XGZRAKBCYZIBKP-UHFFFAOYSA-L disodium;dihydroxide Chemical compound [OH-].[OH-].[Na+].[Na+] XGZRAKBCYZIBKP-UHFFFAOYSA-L 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- QJAUKMLCDVOYNX-UHFFFAOYSA-N formaldehyde;2-hydroxybenzenesulfonic acid Chemical compound O=C.OC1=CC=CC=C1S(O)(=O)=O QJAUKMLCDVOYNX-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- CEQFOVLGLXCDCX-WUKNDPDISA-N methyl red Chemical compound C1=CC(N(C)C)=CC=C1\N=N\C1=CC=CC=C1C(O)=O CEQFOVLGLXCDCX-WUKNDPDISA-N 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 239000011088 parchment paper Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009941 weaving 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
- D21C9/02—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
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE6340/67A SE306876B (xx) | 1967-05-05 | 1967-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO124219B true NO124219B (xx) | 1972-03-20 |
Family
ID=20268428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO1715/68A NO124219B (xx) | 1967-05-05 | 1968-05-02 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3579420A (xx) |
| DE (1) | DE1761339C3 (xx) |
| FI (1) | FI47913C (xx) |
| NO (1) | NO124219B (xx) |
| SE (1) | SE306876B (xx) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE394821B (sv) * | 1975-04-15 | 1977-07-11 | Kamyr Ab | Sett och anordning for avvattning av suspensioner i rorelse |
| SE394822B (sv) * | 1975-04-15 | 1977-07-11 | Kamyr Ab | Sett och anordning for avvattning av suspensioner i rorelse |
| US4100069A (en) * | 1977-02-28 | 1978-07-11 | Kamyr, Inc. | Two-stage pulp thickening |
| US4529482A (en) * | 1979-04-25 | 1985-07-16 | Kamyr Aktiebolag | Apparatus for the treatment of pulp having oscillating distributing wiper blades |
| US4276167A (en) * | 1979-04-25 | 1981-06-30 | Kamyr Aktiebolag | Diffuser arrangements |
| US4375410A (en) * | 1979-04-25 | 1983-03-01 | Kamyr Ab | Reciprocating diffuser arrangements in an elongated vessel |
| US4556494A (en) * | 1980-12-04 | 1985-12-03 | Kamyr Aktiebolag | Method of diffusion washing or thickening of pulp |
| US4637878A (en) * | 1982-03-09 | 1987-01-20 | Kamyr Aktiebolag | Reciprocal movable screens in a vertically elongated vessel |
| US4394267A (en) * | 1982-07-12 | 1983-07-19 | Kamyr, Inc. | Diffuser assembly |
| US4881286A (en) * | 1987-11-27 | 1989-11-21 | Kamyr Ab | Effective diffuser/thickener screen backflushing |
| US4793161A (en) * | 1987-11-27 | 1988-12-27 | Kamyr Ab | Effective diffuser/thickener screen backflushing |
| US5021127A (en) * | 1987-12-01 | 1991-06-04 | Kamyr, Inc. | Extended delignification in pressure diffusers |
| US20020129911A1 (en) * | 2000-10-16 | 2002-09-19 | Marcoccia Bruno S. | Process and configuration for providing external upflow/internal downflow in a continuous digester |
-
1967
- 1967-05-05 SE SE6340/67A patent/SE306876B/xx unknown
-
1968
- 1968-04-30 US US725287A patent/US3579420A/en not_active Expired - Lifetime
- 1968-05-02 FI FI681242A patent/FI47913C/fi active
- 1968-05-02 NO NO1715/68A patent/NO124219B/no unknown
- 1968-05-06 DE DE1761339A patent/DE1761339C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1761339B2 (de) | 1973-04-12 |
| FI47913B (xx) | 1974-01-02 |
| US3579420A (en) | 1971-05-18 |
| DE1761339A1 (de) | 1972-03-23 |
| SE306876B (xx) | 1968-12-09 |
| DE1761339C3 (de) | 1973-10-25 |
| FI47913C (fi) | 1974-04-10 |
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