FR2189572A1 - Bleaching alkaline cellulosic pulp with oxygen - in presence of formaldehyde, (m)ethanol isopropanol, glycerol, sorbitol etc, to ensure slow disintegration of cellulose - Google Patents
Bleaching alkaline cellulosic pulp with oxygen - in presence of formaldehyde, (m)ethanol isopropanol, glycerol, sorbitol etc, to ensure slow disintegration of celluloseInfo
- Publication number
- FR2189572A1 FR2189572A1 FR7322744A FR7322744A FR2189572A1 FR 2189572 A1 FR2189572 A1 FR 2189572A1 FR 7322744 A FR7322744 A FR 7322744A FR 7322744 A FR7322744 A FR 7322744A FR 2189572 A1 FR2189572 A1 FR 2189572A1
- Authority
- FR
- France
- Prior art keywords
- formaldehyde
- glycerol
- cellulose
- oxygen
- cellulosic pulp
- 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
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 title abstract 6
- 238000004061 bleaching Methods 0.000 title abstract 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 title abstract 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 title abstract 2
- 239000001913 cellulose Substances 0.000 title abstract 2
- 229920002678 cellulose Polymers 0.000 title abstract 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 title abstract 2
- 239000000600 sorbitol Substances 0.000 title abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title 1
- AINBZKYUNWUTRE-UHFFFAOYSA-N ethanol;propan-2-ol Chemical compound CCO.CC(C)O AINBZKYUNWUTRE-UHFFFAOYSA-N 0.000 title 1
- 229910052760 oxygen Inorganic materials 0.000 title 1
- 239000001301 oxygen Substances 0.000 title 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 abstract 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 abstract 1
- 235000019253 formic acid Nutrition 0.000 abstract 1
- 229920005610 lignin Polymers 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000007787 solid Substances 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
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
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 |
|---|---|---|---|
| SE7208288A SE364323C (sv) | 1972-06-22 | 1972-06-22 | Sett att behandla cellulosamassa i alkalisk miljo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2189572A1 true FR2189572A1 (en) | 1974-01-25 |
| FR2189572B1 FR2189572B1 (enExample) | 1977-05-13 |
Family
ID=20273652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7322744A Granted FR2189572A1 (en) | 1972-06-22 | 1973-06-21 | Bleaching alkaline cellulosic pulp with oxygen - in presence of formaldehyde, (m)ethanol isopropanol, glycerol, sorbitol etc, to ensure slow disintegration of cellulose |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5536753B2 (enExample) |
| BR (1) | BR7304637D0 (enExample) |
| CA (1) | CA1001803A (enExample) |
| FI (1) | FI60734C (enExample) |
| FR (1) | FR2189572A1 (enExample) |
| SE (1) | SE364323C (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2446355A1 (fr) * | 1979-01-11 | 1980-08-08 | Weyerhaeuser Co | Additifs pour le blanchiment a l'ozone de pate de bois |
| FR2483479A1 (fr) * | 1980-05-27 | 1981-12-04 | Mo Och Domsjoe Ab | Procede de delignification et/ou de blanchiment de pate de cellulose au gaz oxygene |
| EP0524127A3 (en) * | 1991-06-14 | 1993-02-03 | S.A. White Martins | Improvements in a process for delignifying lignocellulosic pulp by means of oxygen |
-
1972
- 1972-06-22 SE SE7208288A patent/SE364323C/xx unknown
-
1973
- 1973-06-15 FI FI194173A patent/FI60734C/fi active
- 1973-06-19 CA CA174,459A patent/CA1001803A/en not_active Expired
- 1973-06-21 JP JP7041873A patent/JPS5536753B2/ja not_active Expired
- 1973-06-21 FR FR7322744A patent/FR2189572A1/fr active Granted
- 1973-06-22 BR BR463773A patent/BR7304637D0/pt unknown
Non-Patent Citations (1)
| Title |
|---|
| NEANT * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2446355A1 (fr) * | 1979-01-11 | 1980-08-08 | Weyerhaeuser Co | Additifs pour le blanchiment a l'ozone de pate de bois |
| FR2483479A1 (fr) * | 1980-05-27 | 1981-12-04 | Mo Och Domsjoe Ab | Procede de delignification et/ou de blanchiment de pate de cellulose au gaz oxygene |
| EP0524127A3 (en) * | 1991-06-14 | 1993-02-03 | S.A. White Martins | Improvements in a process for delignifying lignocellulosic pulp by means of oxygen |
Also Published As
| Publication number | Publication date |
|---|---|
| BR7304637D0 (pt) | 1974-09-05 |
| FI60734C (fi) | 1982-03-10 |
| CA1001803A (en) | 1976-12-21 |
| JPS4948903A (enExample) | 1974-05-11 |
| SE364323B (enExample) | 1974-02-18 |
| FR2189572B1 (enExample) | 1977-05-13 |
| JPS5536753B2 (enExample) | 1980-09-24 |
| SE364323C (sv) | 1976-04-12 |
| FI60734B (fi) | 1981-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |