CA1198858A - Sulfite digester rate of delignification system - Google Patents
Sulfite digester rate of delignification systemInfo
- Publication number
- CA1198858A CA1198858A CA000441793A CA441793A CA1198858A CA 1198858 A CA1198858 A CA 1198858A CA 000441793 A CA000441793 A CA 000441793A CA 441793 A CA441793 A CA 441793A CA 1198858 A CA1198858 A CA 1198858A
- Authority
- CA
- Canada
- Prior art keywords
- digester
- value
- pressure
- delignification
- rate
- 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
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 title claims abstract description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000010411 cooking Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 235000010269 sulphur dioxide Nutrition 0.000 claims description 8
- 208000036366 Sensation of pressure Diseases 0.000 claims description 2
- 239000004291 sulphur dioxide Substances 0.000 claims description 2
- 230000006870 function Effects 0.000 claims 13
- 230000000694 effects Effects 0.000 claims 2
- 230000036647 reaction Effects 0.000 claims 1
- 239000002253 acid Substances 0.000 description 8
- 239000002674 ointment Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000004537 pulping Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000408933 Arrhenes Species 0.000 description 1
- 244000228957 Ferula foetida Species 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 101150050071 proY gene Proteins 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/228—Automation of the pulping processes
Landscapes
- Paper (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44427282A | 1982-11-24 | 1982-11-24 | |
| US444,272 | 1982-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1198858A true CA1198858A (en) | 1986-01-07 |
Family
ID=23764204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000441793A Expired CA1198858A (en) | 1982-11-24 | 1983-11-23 | Sulfite digester rate of delignification system |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0110683B1 (OSRAM) |
| JP (1) | JPS59137584A (OSRAM) |
| KR (1) | KR880000744B1 (OSRAM) |
| AU (1) | AU2149983A (OSRAM) |
| BR (1) | BR8306460A (OSRAM) |
| CA (1) | CA1198858A (OSRAM) |
| DE (1) | DE3370840D1 (OSRAM) |
| ES (1) | ES8505479A1 (OSRAM) |
| HK (1) | HK95287A (OSRAM) |
| IN (1) | IN159330B (OSRAM) |
| SG (1) | SG60987G (OSRAM) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990219A (en) * | 1989-06-13 | 1991-02-05 | Elsag International B.V. | Apparatus for controlling the degree of cooking in a digester |
| US4978425A (en) * | 1989-06-13 | 1990-12-18 | Elsag International B.V. | Method for controlling the degree of cooking in a digester |
| EP0445321B1 (de) * | 1990-03-05 | 1994-06-01 | Siemens Aktiengesellschaft | Verfahren zur Herstellung von Zellstoff in einem kontinuierlichen Kocher |
| CN1064096C (zh) * | 1994-04-28 | 2001-04-04 | 东芝株式会社 | 蒸煮锅温度分布控制系统 |
| ATE189715T1 (de) * | 1995-10-09 | 2000-02-15 | Siemens Ag | Verfahren zur bestimmung des endpunktes der zellstoffkochung und anordnung zum steuern der kochzeit bei der zellstoffkochung in einem reaktor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941649A (en) * | 1972-07-14 | 1976-03-02 | Mo Och Domsjo Aktiebolag | Process for obtaining a predetermined Kappa number in sulfate pulping |
-
1983
- 1983-11-01 KR KR1019830005175A patent/KR880000744B1/ko not_active Expired
- 1983-11-16 JP JP58214236A patent/JPS59137584A/ja active Pending
- 1983-11-16 ES ES527326A patent/ES8505479A1/es not_active Expired
- 1983-11-18 AU AU21499/83A patent/AU2149983A/en not_active Abandoned
- 1983-11-23 CA CA000441793A patent/CA1198858A/en not_active Expired
- 1983-11-23 IN IN1441/CAL/83A patent/IN159330B/en unknown
- 1983-11-24 BR BR8306460A patent/BR8306460A/pt unknown
- 1983-11-24 DE DE8383307188T patent/DE3370840D1/de not_active Expired
- 1983-11-24 EP EP83307188A patent/EP0110683B1/en not_active Expired
-
1987
- 1987-07-27 SG SG609/87A patent/SG60987G/en unknown
- 1987-12-17 HK HK952/87A patent/HK95287A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES527326A0 (es) | 1985-05-16 |
| EP0110683A1 (en) | 1984-06-13 |
| IN159330B (OSRAM) | 1987-05-02 |
| KR840006688A (ko) | 1984-12-01 |
| SG60987G (en) | 1987-10-23 |
| BR8306460A (pt) | 1984-06-26 |
| JPS59137584A (ja) | 1984-08-07 |
| HK95287A (en) | 1987-12-24 |
| DE3370840D1 (en) | 1987-05-14 |
| ES8505479A1 (es) | 1985-05-16 |
| EP0110683B1 (en) | 1987-04-08 |
| KR880000744B1 (ko) | 1988-05-04 |
| AU2149983A (en) | 1984-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |