FI85294B - Foerfarande foer blekning av kemiska pappersmassor. - Google Patents
Foerfarande foer blekning av kemiska pappersmassor. Download PDFInfo
- Publication number
- FI85294B FI85294B FI864411A FI864411A FI85294B FI 85294 B FI85294 B FI 85294B FI 864411 A FI864411 A FI 864411A FI 864411 A FI864411 A FI 864411A FI 85294 B FI85294 B FI 85294B
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- alkaline extraction
- treatment
- chlorine
- chlorine dioxide
- Prior art date
Links
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 58
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 45
- 238000011282 treatment Methods 0.000 claims abstract description 40
- 238000000605 extraction Methods 0.000 claims abstract description 35
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 32
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 29
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 29
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000460 chlorine Substances 0.000 claims abstract description 21
- 238000004061 bleaching Methods 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 229910001902 chlorine oxide Inorganic materials 0.000 claims abstract description 8
- 229910052801 chlorine Inorganic materials 0.000 claims description 13
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 239000011122 softwood Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000000376 reactant Substances 0.000 description 4
- 239000007844 bleaching agent Substances 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 238000004076 pulp bleaching Methods 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229910019093 NaOCl Inorganic materials 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 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
- D21C9/1026—Other features in bleaching processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Detergent Compositions (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8516332A FR2589494B1 (fr) | 1985-10-30 | 1985-10-30 | Procede de blanchiment de pates papetieres chimiques |
| FR8516332 | 1985-10-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI864411A0 FI864411A0 (fi) | 1986-10-29 |
| FI864411L FI864411L (fi) | 1987-05-01 |
| FI85294B true FI85294B (fi) | 1991-12-13 |
Family
ID=9324477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI864411A FI85294B (fi) | 1985-10-30 | 1986-10-29 | Foerfarande foer blekning av kemiska pappersmassor. |
Country Status (11)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4031597A1 (de) * | 1990-10-05 | 1992-04-09 | Sueddeutsche Kalkstickstoff | Verfahren zur chlorarmen bleiche und delignifizierung von zellstoff |
| US6569284B1 (en) * | 1996-09-24 | 2003-05-27 | International Paper Company | Elemental-chlorine-free bleaching process having an initial Eo or Eop stage |
| FR3062138B1 (fr) * | 2017-01-23 | 2019-06-07 | Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses | Procede de blanchiment d'une pate a papier |
-
1985
- 1985-10-30 FR FR8516332A patent/FR2589494B1/fr not_active Expired
-
1986
- 1986-10-28 EP EP86420266A patent/EP0222674B1/fr not_active Expired
- 1986-10-28 DE DE198686420266T patent/DE222674T1/de active Pending
- 1986-10-28 AT AT86420266T patent/ATE48291T1/de not_active IP Right Cessation
- 1986-10-28 ES ES86420266T patent/ES2000019B3/es not_active Expired - Lifetime
- 1986-10-28 DE DE8686420266T patent/DE3667184D1/de not_active Revoked
- 1986-10-29 AU AU64492/86A patent/AU603556B2/en not_active Ceased
- 1986-10-29 NO NO864319A patent/NO864319L/no unknown
- 1986-10-29 PT PT83649A patent/PT83649B/pt not_active IP Right Cessation
- 1986-10-29 FI FI864411A patent/FI85294B/fi not_active Application Discontinuation
- 1986-10-30 ZA ZA868275A patent/ZA868275B/xx unknown
- 1986-10-30 JP JP61259562A patent/JPS62141188A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| PT83649B (pt) | 1989-05-31 |
| PT83649A (fr) | 1986-11-01 |
| JPS62141188A (ja) | 1987-06-24 |
| JPH0116958B2 (enrdf_load_stackoverflow) | 1989-03-28 |
| FR2589494A1 (fr) | 1987-05-07 |
| ES2000019A4 (es) | 1987-09-16 |
| AU6449286A (en) | 1987-05-07 |
| EP0222674B1 (fr) | 1989-11-29 |
| NO864319D0 (no) | 1986-10-29 |
| DE3667184D1 (de) | 1990-01-04 |
| EP0222674A1 (fr) | 1987-05-20 |
| NO864319L (no) | 1987-05-04 |
| FR2589494B1 (fr) | 1988-07-29 |
| ZA868275B (en) | 1987-06-24 |
| FI864411A0 (fi) | 1986-10-29 |
| DE222674T1 (de) | 1987-10-15 |
| ES2000019B3 (es) | 1990-03-16 |
| ATE48291T1 (de) | 1989-12-15 |
| AU603556B2 (en) | 1990-11-22 |
| FI864411L (fi) | 1987-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA | Application withdrawn [patent] |
Owner name: ATOCHEM |