DE2538673C2 - Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz - Google Patents
Bleichaufschluß von Zellstoff mit erheblich reduziertem ChloreinsatzInfo
- Publication number
- DE2538673C2 DE2538673C2 DE2538673A DE2538673A DE2538673C2 DE 2538673 C2 DE2538673 C2 DE 2538673C2 DE 2538673 A DE2538673 A DE 2538673A DE 2538673 A DE2538673 A DE 2538673A DE 2538673 C2 DE2538673 C2 DE 2538673C2
- Authority
- DE
- Germany
- Prior art keywords
- bleaching
- stage
- chlorine
- pulp
- cellulose
- 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
- 238000004061 bleaching Methods 0.000 title claims description 27
- 239000000460 chlorine Substances 0.000 title claims description 12
- 229910052801 chlorine Inorganic materials 0.000 title claims description 12
- 229920002678 cellulose Polymers 0.000 title claims description 6
- 239000001913 cellulose Substances 0.000 title claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title description 8
- 238000000034 method Methods 0.000 claims description 21
- 238000005660 chlorination reaction Methods 0.000 claims description 11
- 150000002978 peroxides Chemical class 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 230000029087 digestion Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 17
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 239000002351 wastewater Substances 0.000 description 6
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 241001070947 Fagus Species 0.000 description 3
- 235000010099 Fagus sylvatica Nutrition 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- LVGQIQHJMRUCRM-UHFFFAOYSA-L calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 description 3
- 235000010260 calcium hydrogen sulphite Nutrition 0.000 description 3
- 239000008139 complexing agent Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 229910019093 NaOCl Inorganic materials 0.000 description 2
- 241000218657 Picea Species 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241000218631 Coniferophyta Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 241000294754 Macroptilium atropurpureum Species 0.000 description 1
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- MAYPHUUCLRDEAZ-UHFFFAOYSA-N chlorine peroxide Inorganic materials ClOOCl MAYPHUUCLRDEAZ-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- -1 compounds Peroxides Chemical class 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002611 ovarian Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002023 wood Substances 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
- D21C9/1057—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)
- Cosmetics (AREA)
Priority Applications (17)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2538673A DE2538673C2 (de) | 1975-08-30 | 1975-08-30 | Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz |
| AT861075A AT340765B (de) | 1975-08-30 | 1975-11-12 | Mehrstufiges verfahren zur chlorarmen vollbleiche von zellstoff |
| FI753314A FI62869C (fi) | 1975-08-30 | 1975-11-25 | Foerfarande i flera steg foer klorfattig helblekning av cellulosa |
| YU3012/75A YU37370B (en) | 1975-08-30 | 1975-11-28 | Process for complete bleaching of cellulose in several steps with low chlorine consumption |
| NL7513942A NL7513942A (nl) | 1975-08-30 | 1975-11-28 | Bleekontsluiting van cellulose met aanzienlijk verminderd chloorverbruik. |
| NO754077A NO145344B (no) | 1975-08-30 | 1975-12-03 | Fleretrinnsfremgangsmaate til klorfattig fullbleking av cellulose |
| BE6045289A BE836462R (fr) | 1975-08-30 | 1975-12-09 | Procede de decomposition et de blanchiment de cellulose permettant de reduire le chlore mis en oeuvre et produits obtenus par ce procede |
| ES443318A ES443318A1 (es) | 1975-08-30 | 1975-12-09 | Procedimiento mejorado de varias etapas para el blanqueo to-tal, con poco consumo de cloro, de celulosa. |
| ZA757822A ZA757822B (en) | 1975-08-30 | 1975-12-15 | Bleaching process for wood pulp with the use of considerably reduced amounts of chlorine |
| AR261846A AR221678A1 (es) | 1975-08-30 | 1976-01-05 | Procedimiento de blanqueo de celulosa en varias etapas con utilizacion considerablemente reducida de cloro |
| IT67078/76A IT1055792B (it) | 1975-08-30 | 1976-01-14 | Procedimento per la sbianca della cellulosa con impiego ridotto delcloro |
| CA245,088A CA1080406A (fr) | 1975-08-30 | 1976-02-05 | Procede de blanchiment de pate par hydrolyse faisant appel au chlore en quantites fortement reduites |
| FR7605307A FR2322235A1 (fr) | 1975-08-30 | 1976-02-25 | Attaque blanchissante de la cellulose avec reduction importante de la quantite de chlore utilisee |
| SE7602842A SE7602842L (sv) | 1975-08-30 | 1976-02-27 | Blekning av cellulosa med avsevert minskad klormengd |
| GB16311/76A GB1544216A (en) | 1975-08-30 | 1976-04-22 | Bleaching and digesting cellulosic pulp |
| BR7603006A BR7603006A (pt) | 1975-08-30 | 1976-05-13 | Processo por fases,para alvejamento completo,com pouco cloro,de celulose |
| CH1084076A CH620002A5 (en) | 1975-08-30 | 1976-08-26 | Multi-stage process for complete low-chlorine bleaching of pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2538673A DE2538673C2 (de) | 1975-08-30 | 1975-08-30 | Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2538673A1 DE2538673A1 (de) | 1977-03-03 |
| DE2538673C2 true DE2538673C2 (de) | 1986-01-16 |
Family
ID=5955230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2538673A Expired DE2538673C2 (de) | 1975-08-30 | 1975-08-30 | Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz |
Country Status (17)
| Country | Link |
|---|---|
| AR (1) | AR221678A1 (fr) |
| AT (1) | AT340765B (fr) |
| BE (1) | BE836462R (fr) |
| BR (1) | BR7603006A (fr) |
| CA (1) | CA1080406A (fr) |
| CH (1) | CH620002A5 (fr) |
| DE (1) | DE2538673C2 (fr) |
| ES (1) | ES443318A1 (fr) |
| FI (1) | FI62869C (fr) |
| FR (1) | FR2322235A1 (fr) |
| GB (1) | GB1544216A (fr) |
| IT (1) | IT1055792B (fr) |
| NL (1) | NL7513942A (fr) |
| NO (1) | NO145344B (fr) |
| SE (1) | SE7602842L (fr) |
| YU (1) | YU37370B (fr) |
| ZA (1) | ZA757822B (fr) |
Families Citing this family (6)
| 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 |
| FR2572431B1 (fr) * | 1984-10-25 | 1987-12-04 | Centre Tech Ind Papier | Procede pour la preparation des pates papetieres chimiques en vue du blanchiment. |
| EP0402335B2 (fr) * | 1989-06-06 | 2001-03-14 | Eka Chemicals AB | Procédé de blanchiment de pâtes contenant de la lignocellulose |
| SE9001481L (sv) * | 1990-04-23 | 1991-10-24 | Eka Nobel Ab | Reduktion av halogenorganiska foereningar i blekeriavlopp |
| SE466061B (sv) * | 1990-04-23 | 1991-12-09 | Eka Nobel Ab | Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE753531C (de) * | 1938-11-09 | 1953-05-18 | Degussa | Verfahren zum Bleichen von Zellstoff |
| DE2327900C3 (de) * | 1973-06-01 | 1985-02-07 | Degussa Ag, 6000 Frankfurt | Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz |
-
1975
- 1975-08-30 DE DE2538673A patent/DE2538673C2/de not_active Expired
- 1975-11-12 AT AT861075A patent/AT340765B/de not_active IP Right Cessation
- 1975-11-25 FI FI753314A patent/FI62869C/fi not_active IP Right Cessation
- 1975-11-28 NL NL7513942A patent/NL7513942A/xx not_active Application Discontinuation
- 1975-11-28 YU YU3012/75A patent/YU37370B/xx unknown
- 1975-12-03 NO NO754077A patent/NO145344B/no unknown
- 1975-12-09 BE BE6045289A patent/BE836462R/fr not_active IP Right Cessation
- 1975-12-09 ES ES443318A patent/ES443318A1/es not_active Expired
- 1975-12-15 ZA ZA757822A patent/ZA757822B/xx unknown
-
1976
- 1976-01-05 AR AR261846A patent/AR221678A1/es active
- 1976-01-14 IT IT67078/76A patent/IT1055792B/it active
- 1976-02-05 CA CA245,088A patent/CA1080406A/fr not_active Expired
- 1976-02-25 FR FR7605307A patent/FR2322235A1/fr active Granted
- 1976-02-27 SE SE7602842A patent/SE7602842L/ unknown
- 1976-04-22 GB GB16311/76A patent/GB1544216A/en not_active Expired
- 1976-05-13 BR BR7603006A patent/BR7603006A/pt unknown
- 1976-08-26 CH CH1084076A patent/CH620002A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AT340765B (de) | 1978-01-10 |
| FI62869B (fi) | 1982-11-30 |
| FR2322235A1 (fr) | 1977-03-25 |
| SE7602842L (sv) | 1977-03-01 |
| YU301275A (en) | 1983-04-27 |
| FI753314A7 (fr) | 1977-03-01 |
| IT1055792B (it) | 1982-01-11 |
| BE836462R (fr) | 1976-06-09 |
| ES443318A1 (es) | 1977-05-01 |
| GB1544216A (en) | 1979-04-19 |
| FI62869C (fi) | 1983-03-10 |
| ATA861075A (de) | 1977-04-15 |
| DE2538673A1 (de) | 1977-03-03 |
| NO145344B (no) | 1981-11-23 |
| CA1080406A (fr) | 1980-07-01 |
| NO754077L (fr) | 1977-03-01 |
| AR221678A1 (es) | 1981-03-13 |
| YU37370B (en) | 1984-08-31 |
| FR2322235B1 (fr) | 1979-04-06 |
| CH620002A5 (en) | 1980-10-31 |
| NL7513942A (nl) | 1977-03-02 |
| BR7603006A (pt) | 1977-05-31 |
| ZA757822B (en) | 1976-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| OGA | New person/name/address of the applicant | ||
| 8176 | Proceedings suspended because of application no: |
Ref document number: 2327900 Country of ref document: DE Format of ref document f/p: P |
|
| 8178 | Suspension cancelled | ||
| AF | Is addition to no. |
Ref country code: DE Ref document number: 2327900 Format of ref document f/p: P |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |