SU736878A3 - Способ отбеливани целлюлозной пульпы - Google Patents
Способ отбеливани целлюлозной пульпы Download PDFInfo
- Publication number
- SU736878A3 SU736878A3 SU711686630A SU1686630A SU736878A3 SU 736878 A3 SU736878 A3 SU 736878A3 SU 711686630 A SU711686630 A SU 711686630A SU 1686630 A SU1686630 A SU 1686630A SU 736878 A3 SU736878 A3 SU 736878A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pulp
- column
- concentration
- bleaching
- oxygen
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 229920002678 cellulose Polymers 0.000 title claims 3
- 239000001913 cellulose Substances 0.000 title claims 3
- 238000002386 leaching Methods 0.000 title 1
- 238000004061 bleaching Methods 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000007844 bleaching agent Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 230000002087 whitening effect Effects 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 2
- 229910001882 dioxygen Inorganic materials 0.000 claims 2
- 238000004076 pulp bleaching Methods 0.000 claims 2
- 239000003513 alkali Substances 0.000 claims 1
- 238000002474 experimental method Methods 0.000 claims 1
- 238000004880 explosion Methods 0.000 claims 1
- 239000002360 explosive Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000002002 slurry Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
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 |
|---|---|---|---|
| SE10238/70A SE341868B (enExample) | 1970-07-24 | 1970-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU736878A3 true SU736878A3 (ru) | 1980-05-25 |
Family
ID=20291973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU711686630A SU736878A3 (ru) | 1970-07-24 | 1971-07-23 | Способ отбеливани целлюлозной пульпы |
Country Status (3)
| Country | Link |
|---|---|
| SE (1) | SE341868B (enExample) |
| SU (1) | SU736878A3 (enExample) |
| ZA (1) | ZA714910B (enExample) |
-
1970
- 1970-07-24 SE SE10238/70A patent/SE341868B/xx unknown
-
1971
- 1971-07-23 ZA ZA714910A patent/ZA714910B/xx unknown
- 1971-07-23 SU SU711686630A patent/SU736878A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| ZA714910B (en) | 1972-05-31 |
| SE341868B (enExample) | 1972-01-17 |
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