FR2174128A1 - Continuous cellulose bleaching - using reading as control parameter - Google Patents
Continuous cellulose bleaching - using reading as control parameterInfo
- Publication number
- FR2174128A1 FR2174128A1 FR7307040A FR7307040A FR2174128A1 FR 2174128 A1 FR2174128 A1 FR 2174128A1 FR 7307040 A FR7307040 A FR 7307040A FR 7307040 A FR7307040 A FR 7307040A FR 2174128 A1 FR2174128 A1 FR 2174128A1
- Authority
- FR
- France
- Prior art keywords
- bleaching
- reading
- variable
- control parameter
- optionally
- 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.)
- Granted
Links
- 238000004061 bleaching Methods 0.000 title abstract 5
- 229920002678 cellulose Polymers 0.000 title abstract 2
- 239000001913 cellulose Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 238000005660 chlorination reaction Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 229920005610 lignin Polymers 0.000 abstract 1
- 238000013178 mathematical model Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 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
- D21C9/1052—Controlling the process
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI52072A FI47786C (fi) | 1972-02-28 | 1972-02-28 | Menetelmä selluun kohdistuvan jatkuvan valkaisuprosessi automaattiseks i säätämiseksi. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2174128A1 true FR2174128A1 (en) | 1973-10-12 |
FR2174128B3 FR2174128B3 (en, 2012) | 1976-02-20 |
Family
ID=8504236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7307040A Granted FR2174128A1 (en) | 1972-02-28 | 1973-02-28 | Continuous cellulose bleaching - using reading as control parameter |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4898105A (en, 2012) |
AT (1) | AT326997B (en, 2012) |
DE (1) | DE2309119A1 (en, 2012) |
FI (1) | FI47786C (en, 2012) |
FR (1) | FR2174128A1 (en, 2012) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2390542A1 (fr) * | 1977-05-11 | 1978-12-08 | Mo Och Domsjoe Ab | Procede de commande de l'amenee de reactifs lors de la delignification de matiere cellulosique |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6119896A (ja) * | 1984-07-05 | 1986-01-28 | 神崎製紙株式会社 | パルプ漂白工程に於ける塩素添加の制御方法 |
SE455203B (sv) * | 1986-10-20 | 1988-06-27 | Eka Nobel Ab | Forfarande for styrning av peroxidblekning av massa |
JPH073038B2 (ja) * | 1986-11-11 | 1995-01-18 | 新王子製紙株式会社 | パルプ漂白度制御方法 |
JP5684655B2 (ja) * | 2011-06-24 | 2015-03-18 | 王子ホールディングス株式会社 | 漂白工程の多変数制御方法及びその装置 |
-
1972
- 1972-02-28 FI FI52072A patent/FI47786C/fi active
-
1973
- 1973-02-08 AT AT113873A patent/AT326997B/de not_active IP Right Cessation
- 1973-02-23 DE DE19732309119 patent/DE2309119A1/de active Pending
- 1973-02-27 JP JP2365373A patent/JPS4898105A/ja active Pending
- 1973-02-28 FR FR7307040A patent/FR2174128A1/fr active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2390542A1 (fr) * | 1977-05-11 | 1978-12-08 | Mo Och Domsjoe Ab | Procede de commande de l'amenee de reactifs lors de la delignification de matiere cellulosique |
Also Published As
Publication number | Publication date |
---|---|
FI47786C (fi) | 1974-03-11 |
DE2309119A1 (de) | 1973-09-06 |
FR2174128B3 (en, 2012) | 1976-02-20 |
FI47786B (en, 2012) | 1973-11-30 |
JPS4898105A (en, 2012) | 1973-12-13 |
AT326997B (de) | 1976-01-12 |
ATA113873A (de) | 1975-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |