GB1342580A - Oxygen bleaching process for lignocellulosic materials - Google Patents
Oxygen bleaching process for lignocellulosic materialsInfo
- Publication number
- GB1342580A GB1342580A GB6027070A GB6027070A GB1342580A GB 1342580 A GB1342580 A GB 1342580A GB 6027070 A GB6027070 A GB 6027070A GB 6027070 A GB6027070 A GB 6027070A GB 1342580 A GB1342580 A GB 1342580A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen
- chlorine
- pulp
- treatment
- chlorine dioxide
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 15
- 239000001301 oxygen Substances 0.000 title abstract 15
- 229910052760 oxygen Inorganic materials 0.000 title abstract 15
- 238000004061 bleaching Methods 0.000 title abstract 3
- 239000012978 lignocellulosic material Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 18
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 9
- 239000004155 Chlorine dioxide Substances 0.000 abstract 9
- 239000000460 chlorine Substances 0.000 abstract 9
- 235000019398 chlorine dioxide Nutrition 0.000 abstract 9
- 239000000463 material Substances 0.000 abstract 9
- 229910001902 chlorine oxide Inorganic materials 0.000 abstract 6
- 239000007900 aqueous suspension Substances 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 229910052801 chlorine Inorganic materials 0.000 abstract 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 229910001882 dioxygen Inorganic materials 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 150000004679 hydroxides Chemical class 0.000 abstract 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract 1
- 239000001095 magnesium carbonate Substances 0.000 abstract 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 1
- 239000000347 magnesium hydroxide Substances 0.000 abstract 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
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 |
|---|---|---|---|
| CA70450 | 1969-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1342580A true GB1342580A (en) | 1974-01-03 |
Family
ID=4086085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6027070A Expired GB1342580A (en) | 1969-12-19 | 1970-12-18 | Oxygen bleaching process for lignocellulosic materials |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT302013B (enrdf_load_stackoverflow) |
| CA (1) | CA897361A (enrdf_load_stackoverflow) |
| DE (1) | DE2061526C3 (enrdf_load_stackoverflow) |
| FI (1) | FI49994C (enrdf_load_stackoverflow) |
| FR (1) | FR2071947B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1342580A (enrdf_load_stackoverflow) |
| NO (1) | NO129262B (enrdf_load_stackoverflow) |
| SE (1) | SE369746B (enrdf_load_stackoverflow) |
| SU (1) | SU366622A3 (enrdf_load_stackoverflow) |
| ZA (1) | ZA708076B (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0088073A4 (en) * | 1981-09-04 | 1984-01-09 | Weyerhaeuser Co | METHOD FOR TREATING PULP WITH MULTIPLE OXYGEN LEVELS. |
| WO1991012366A1 (en) * | 1990-02-19 | 1991-08-22 | Amcor Limited | Bleaching of paper pulp |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2416297A1 (fr) * | 1978-01-31 | 1979-08-31 | Europeen Cellulose | Procede anti-polluant de blanchiment de pate a papier |
| FR2432574A1 (fr) * | 1978-08-01 | 1980-02-29 | Europeen Cellulose | Procede de blanchiment de pate a papier |
| FI67241B (fi) * | 1981-06-10 | 1984-10-31 | Aga Ab | Saett foer blekning av cellulosahaltiga material |
| FR2670513B1 (fr) * | 1990-12-18 | 1993-02-19 | Centre Tech Ind Papier | Procede de blanchiment des pates papetieres chimiques par traitement a l'oxygene en deux stades. |
| SE9401628L (sv) * | 1994-05-10 | 1995-11-11 | Stora Kopparbergs Bergslags Ab | Förfarande vid syrgasdelignifiering |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1310248A (enrdf_load_stackoverflow) * | 1963-03-06 | |||
| FR1404605A (fr) * | 1964-05-22 | 1965-07-02 | Air Liquide | Perfectionnement à la délignification des pâtes chimiques de cellulose |
| SE334286B (enrdf_load_stackoverflow) * | 1968-12-05 | 1971-04-19 | Mo Och Domsjoe Ab |
-
1969
- 1969-12-19 CA CA897361A patent/CA897361A/en not_active Expired
-
1970
- 1970-11-30 ZA ZA708076*A patent/ZA708076B/xx unknown
- 1970-12-07 FI FI703285A patent/FI49994C/fi active
- 1970-12-10 NO NO04748/70A patent/NO129262B/no unknown
- 1970-12-14 DE DE2061526A patent/DE2061526C3/de not_active Expired
- 1970-12-16 SE SE17087/70A patent/SE369746B/xx unknown
- 1970-12-18 AT AT1142270A patent/AT302013B/de not_active IP Right Cessation
- 1970-12-18 GB GB6027070A patent/GB1342580A/en not_active Expired
- 1970-12-18 FR FR7045905A patent/FR2071947B1/fr not_active Expired
- 1970-12-18 SU SU1601806A patent/SU366622A3/ru active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0088073A4 (en) * | 1981-09-04 | 1984-01-09 | Weyerhaeuser Co | METHOD FOR TREATING PULP WITH MULTIPLE OXYGEN LEVELS. |
| WO1991012366A1 (en) * | 1990-02-19 | 1991-08-22 | Amcor Limited | Bleaching of paper pulp |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2061526A1 (de) | 1971-06-24 |
| DE2061526B2 (enrdf_load_stackoverflow) | 1974-09-19 |
| FR2071947B1 (enrdf_load_stackoverflow) | 1974-04-26 |
| DE2061526C3 (de) | 1975-06-05 |
| AT302013B (de) | 1972-09-25 |
| NO129262B (enrdf_load_stackoverflow) | 1974-03-18 |
| FR2071947A1 (enrdf_load_stackoverflow) | 1971-09-24 |
| ZA708076B (en) | 1972-07-26 |
| SE369746B (enrdf_load_stackoverflow) | 1974-09-16 |
| CA897361A (en) | 1972-04-11 |
| FI49994C (fi) | 1975-11-10 |
| FI49994B (enrdf_load_stackoverflow) | 1975-07-31 |
| SU366622A3 (enrdf_load_stackoverflow) | 1973-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |