DE2903014A1 - Anti-schadstoff-bleichverfahren fuer papierzellstoff - Google Patents
Anti-schadstoff-bleichverfahren fuer papierzellstoffInfo
- Publication number
- DE2903014A1 DE2903014A1 DE19792903014 DE2903014A DE2903014A1 DE 2903014 A1 DE2903014 A1 DE 2903014A1 DE 19792903014 DE19792903014 DE 19792903014 DE 2903014 A DE2903014 A DE 2903014A DE 2903014 A1 DE2903014 A1 DE 2903014A1
- Authority
- DE
- Germany
- Prior art keywords
- chlorine
- phase
- bleaching
- paper pulp
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 78
- 229920001131 Pulp (paper) Polymers 0.000 title claims description 65
- 238000004061 bleaching Methods 0.000 title claims description 59
- 239000003344 environmental pollutant Substances 0.000 title claims description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 72
- 239000000460 chlorine Substances 0.000 claims description 55
- 229910052801 chlorine Inorganic materials 0.000 claims description 49
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 43
- 239000004155 Chlorine dioxide Substances 0.000 claims description 36
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 36
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 20
- 238000005660 chlorination reaction Methods 0.000 claims description 19
- 239000002351 wastewater Substances 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 14
- 230000014759 maintenance of location Effects 0.000 claims description 13
- 150000002978 peroxides Chemical class 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 238000010411 cooking Methods 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 238000004900 laundering Methods 0.000 claims 1
- 238000004537 pulping Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 42
- 239000003153 chemical reaction reagent Substances 0.000 description 13
- 239000002655 kraft paper Substances 0.000 description 12
- 241001070947 Fagus Species 0.000 description 9
- 235000010099 Fagus sylvatica Nutrition 0.000 description 9
- 239000011121 hardwood Substances 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 7
- 238000011109 contamination Methods 0.000 description 6
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 6
- 229920005610 lignin Polymers 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 229910019093 NaOCl Inorganic materials 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 235000021190 leftovers Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009896 oxidative bleaching Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000003969 polarography Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004313 potentiometry Methods 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
-
- 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 |
|---|---|---|---|
| FR7802694A FR2416297A1 (fr) | 1978-01-31 | 1978-01-31 | Procede anti-polluant de blanchiment de pate a papier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2903014A1 true DE2903014A1 (de) | 1979-08-02 |
Family
ID=9204036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792903014 Withdrawn DE2903014A1 (de) | 1978-01-31 | 1979-01-26 | Anti-schadstoff-bleichverfahren fuer papierzellstoff |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS54116404A (enrdf_load_stackoverflow) |
| BE (1) | BE873765A (enrdf_load_stackoverflow) |
| BR (1) | BR7900561A (enrdf_load_stackoverflow) |
| DE (1) | DE2903014A1 (enrdf_load_stackoverflow) |
| FI (1) | FI790318A7 (enrdf_load_stackoverflow) |
| FR (1) | FR2416297A1 (enrdf_load_stackoverflow) |
| OA (1) | OA06169A (enrdf_load_stackoverflow) |
| SE (1) | SE7900793L (enrdf_load_stackoverflow) |
| ZA (1) | ZA79388B (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5011572A (en) * | 1989-05-19 | 1991-04-30 | Fmc Corporation | Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage |
| SE9000340L (sv) * | 1990-01-31 | 1991-08-01 | Eka Nobel Ab | Foerfarande vid blekning av lignocellulosahaltigt material |
| CA2044100A1 (en) * | 1991-06-07 | 1992-12-08 | Janice Hamilton | Biobleaching process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2100496A (en) * | 1936-02-18 | 1937-11-30 | Mathieson Alkali Works Inc | Bleaching of cellulosic materials |
| US2120678A (en) * | 1936-03-30 | 1938-06-14 | Hammermill Paper Co | Bleaching and purifying process |
| US2494542A (en) * | 1946-05-02 | 1950-01-17 | Niagara Alkali Company | Method of bleaching pulp |
| CA897361A (en) * | 1969-12-19 | 1972-04-11 | E. Mallett Samuel | Oxygen bleaching process |
| DE2538673C2 (de) * | 1975-08-30 | 1986-01-16 | Degussa Ag, 6000 Frankfurt | Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz |
-
1978
- 1978-01-31 FR FR7802694A patent/FR2416297A1/fr active Granted
-
1979
- 1979-01-26 DE DE19792903014 patent/DE2903014A1/de not_active Withdrawn
- 1979-01-29 BE BE0/193124A patent/BE873765A/xx not_active IP Right Cessation
- 1979-01-30 BR BR7900561A patent/BR7900561A/pt unknown
- 1979-01-30 SE SE7900793A patent/SE7900793L/ not_active Application Discontinuation
- 1979-01-30 ZA ZA79388A patent/ZA79388B/xx unknown
- 1979-01-30 JP JP884579A patent/JPS54116404A/ja active Pending
- 1979-01-30 OA OA56722A patent/OA06169A/xx unknown
- 1979-01-31 FI FI790318A patent/FI790318A7/fi unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2416297A1 (fr) | 1979-08-31 |
| SE7900793L (sv) | 1979-08-01 |
| BR7900561A (pt) | 1979-08-28 |
| FR2416297B1 (enrdf_load_stackoverflow) | 1983-01-07 |
| BE873765A (fr) | 1979-07-30 |
| OA06169A (fr) | 1981-06-30 |
| JPS54116404A (en) | 1979-09-10 |
| FI790318A7 (fi) | 1979-08-01 |
| ZA79388B (en) | 1980-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8130 | Withdrawal |