SU701546A3 - Способ отбелки целлюлозы - Google Patents
Способ отбелки целлюлозыInfo
- Publication number
- SU701546A3 SU701546A3 SU681282321A SU1282321A SU701546A3 SU 701546 A3 SU701546 A3 SU 701546A3 SU 681282321 A SU681282321 A SU 681282321A SU 1282321 A SU1282321 A SU 1282321A SU 701546 A3 SU701546 A3 SU 701546A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chlorine
- treatment
- pulp
- bleaching
- temperature
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000004061 bleaching Methods 0.000 title claims description 8
- 229920002678 cellulose Polymers 0.000 title description 2
- 239000001913 cellulose Substances 0.000 title description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 28
- 239000000460 chlorine Substances 0.000 claims description 26
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 26
- 229910052801 chlorine Inorganic materials 0.000 claims description 24
- 239000004155 Chlorine dioxide Substances 0.000 claims description 14
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910001902 chlorine oxide Inorganic materials 0.000 description 2
- 238000004076 pulp bleaching Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
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 |
|---|---|---|---|
| SE1531767A SE311110B (enrdf_load_stackoverflow) | 1967-11-08 | 1967-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU701546A3 true SU701546A3 (ru) | 1979-11-30 |
Family
ID=20300480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU681282321A SU701546A3 (ru) | 1967-11-08 | 1968-11-01 | Способ отбелки целлюлозы |
Country Status (4)
| Country | Link |
|---|---|
| FI (1) | FI44748B (enrdf_load_stackoverflow) |
| FR (1) | FR1597604A (enrdf_load_stackoverflow) |
| SE (1) | SE311110B (enrdf_load_stackoverflow) |
| SU (1) | SU701546A3 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE458209B (sv) * | 1987-06-04 | 1989-03-06 | Nils Bertil Carnoe | Saett att reducera miljoeskadliga klorfenolfoereningar vid klorblekning av cellulosamassa |
-
1967
- 1967-11-08 SE SE1531767A patent/SE311110B/xx unknown
-
1968
- 1968-07-30 FI FI215368A patent/FI44748B/fi active
- 1968-11-01 SU SU681282321A patent/SU701546A3/ru active
- 1968-11-08 FR FR1597604D patent/FR1597604A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE311110B (enrdf_load_stackoverflow) | 1969-05-27 |
| FI44748B (enrdf_load_stackoverflow) | 1971-08-31 |
| FR1597604A (enrdf_load_stackoverflow) | 1970-06-29 |
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