DE2718398C3 - Verfahren zur Behandlung von lignozellulosehaltigem Material mit Chlor - Google Patents
Verfahren zur Behandlung von lignozellulosehaltigem Material mit ChlorInfo
- Publication number
- DE2718398C3 DE2718398C3 DE2718398A DE2718398A DE2718398C3 DE 2718398 C3 DE2718398 C3 DE 2718398C3 DE 2718398 A DE2718398 A DE 2718398A DE 2718398 A DE2718398 A DE 2718398A DE 2718398 C3 DE2718398 C3 DE 2718398C3
- Authority
- DE
- Germany
- Prior art keywords
- chlorine
- solution
- treatment
- displacement
- displaced
- 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
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims description 47
- 239000000460 chlorine Substances 0.000 title claims description 47
- 229910052801 chlorine Inorganic materials 0.000 title claims description 45
- 238000000034 method Methods 0.000 title claims description 31
- 239000012978 lignocellulosic material Substances 0.000 title 1
- 229920005610 lignin Polymers 0.000 claims description 27
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 17
- 239000004155 Chlorine dioxide Substances 0.000 claims description 12
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 238000010411 cooking Methods 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 239000002657 fibrous material Substances 0.000 claims description 7
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012670 alkaline solution Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 238000005660 chlorination reaction Methods 0.000 description 18
- 238000004061 bleaching Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910001902 chlorine oxide Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 238000007086 side reaction Methods 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
- D21C9/1026—Other features in bleaching processes
-
- 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
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 |
|---|---|---|---|
| FI761171A FI55878C (fi) | 1976-04-28 | 1976-04-28 | Foerfarande foer behandling av lignocellulosamaterial med klor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2718398A1 DE2718398A1 (de) | 1977-11-03 |
| DE2718398B2 DE2718398B2 (de) | 1978-07-06 |
| DE2718398C3 true DE2718398C3 (de) | 1979-03-15 |
Family
ID=8509954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2718398A Expired DE2718398C3 (de) | 1976-04-28 | 1977-04-26 | Verfahren zur Behandlung von lignozellulosehaltigem Material mit Chlor |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4222818A (enExample) |
| JP (1) | JPS6044438B2 (enExample) |
| BR (1) | BR7702604A (enExample) |
| CA (1) | CA1118161A (enExample) |
| DE (1) | DE2718398C3 (enExample) |
| FI (1) | FI55878C (enExample) |
| FR (1) | FR2349677A1 (enExample) |
| NO (1) | NO149552C (enExample) |
| SE (1) | SE7704081L (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016118411A1 (en) | 2015-01-21 | 2016-07-28 | Resinate Materials Group, Inc. | High recycle content polyols from thermoplastic polyesters and lignin or tannin |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2046551A (en) * | 1931-09-08 | 1936-07-07 | David B Davies | Process of bleaching chemical wood pulp |
| US2127765A (en) * | 1937-07-23 | 1938-08-23 | Niagara Alkali Company | Bleaching pulp |
| US2730426A (en) * | 1951-06-20 | 1956-01-10 | Cellulose Dev Corp Ltd | Treating vegetable fibrous material with chlorine gas |
| GB770753A (en) * | 1952-12-31 | 1957-03-27 | Edwards & Co London Ltd W | Improvements in or relating to apparatus for the vaporisation of metals and metalloids |
| US3298900A (en) * | 1963-03-22 | 1967-01-17 | Kamyr Ab | Method and apparatus for the continuous bleaching of cellulosic pulp |
| SE340216B (enExample) * | 1967-11-06 | 1971-11-08 | Kamyr Ab | |
| US3802958A (en) * | 1968-11-07 | 1974-04-09 | Mo Och Domsjoe Ab | Chlorination of cellulose pulp |
| SE334286B (enExample) * | 1968-12-05 | 1971-04-19 | Mo Och Domsjoe Ab | |
| US3966542A (en) * | 1974-09-20 | 1976-06-29 | General Signal Corporation | Multi-stage bleaching of pulp using successively lower power levels |
| SE389351B (sv) * | 1975-03-14 | 1976-11-01 | Kamyr Ab | Sett och anordning for fordelning och inblandning av gas och/eller vetska i massasuspensioner av hog koncentration. |
-
1976
- 1976-04-28 FI FI761171A patent/FI55878C/fi not_active IP Right Cessation
-
1977
- 1977-04-06 SE SE7704081A patent/SE7704081L/ not_active Application Discontinuation
- 1977-04-21 FR FR7711992A patent/FR2349677A1/fr active Granted
- 1977-04-25 BR BR7702604A patent/BR7702604A/pt unknown
- 1977-04-25 JP JP52046900A patent/JPS6044438B2/ja not_active Expired
- 1977-04-26 DE DE2718398A patent/DE2718398C3/de not_active Expired
- 1977-04-27 CA CA000277155A patent/CA1118161A/en not_active Expired
- 1977-04-27 NO NO771460A patent/NO149552C/no unknown
-
1978
- 1978-07-03 US US05/921,370 patent/US4222818A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2349677A1 (fr) | 1977-11-25 |
| CA1118161A (en) | 1982-02-16 |
| FI761171A7 (enExample) | 1977-10-29 |
| FR2349677B1 (enExample) | 1981-03-27 |
| NO149552C (no) | 1984-05-09 |
| FI55878C (fi) | 1979-10-10 |
| NO149552B (no) | 1984-01-30 |
| JPS6044438B2 (ja) | 1985-10-03 |
| NO771460L (no) | 1977-10-31 |
| SE7704081L (sv) | 1977-10-29 |
| DE2718398A1 (de) | 1977-11-03 |
| JPS52132103A (en) | 1977-11-05 |
| FI55878B (fi) | 1979-06-29 |
| DE2718398B2 (de) | 1978-07-06 |
| US4222818A (en) | 1980-09-16 |
| BR7702604A (pt) | 1978-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| EI | Miscellaneous see part 3 | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: KAMYR AB, 65115 KARLSTAD, SE |
|
| 8339 | Ceased/non-payment of the annual fee |