CA1082856A - Process related to pulp bleaching - Google Patents
Process related to pulp bleachingInfo
- Publication number
- CA1082856A CA1082856A CA268,159A CA268159A CA1082856A CA 1082856 A CA1082856 A CA 1082856A CA 268159 A CA268159 A CA 268159A CA 1082856 A CA1082856 A CA 1082856A
- Authority
- CA
- Canada
- Prior art keywords
- column
- wash
- stage
- liquor
- bleaching
- 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
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000004076 pulp bleaching Methods 0.000 title claims abstract description 7
- 238000004061 bleaching Methods 0.000 claims abstract description 50
- 238000005406 washing Methods 0.000 claims abstract description 37
- 239000000706 filtrate Substances 0.000 claims abstract description 31
- 239000000460 chlorine Substances 0.000 claims abstract description 25
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 25
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000605 extraction Methods 0.000 claims abstract description 18
- 239000003513 alkali Substances 0.000 claims abstract description 16
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 12
- -1 chlorine ions Chemical class 0.000 claims abstract 2
- 229920005989 resin Polymers 0.000 claims description 48
- 239000011347 resin Substances 0.000 claims description 48
- 230000002378 acidificating effect Effects 0.000 claims description 23
- 239000003344 environmental pollutant Substances 0.000 claims description 15
- 231100000719 pollutant Toxicity 0.000 claims description 15
- 238000005660 chlorination reaction Methods 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 6
- 239000012670 alkaline solution Substances 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 229940060038 chlorine Drugs 0.000 claims 8
- 235000017168 chlorine Nutrition 0.000 claims 8
- 239000012141 concentrate Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 description 14
- 239000012071 phase Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 239000007857 degradation product Substances 0.000 description 8
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 8
- 229920005610 lignin Polymers 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000004155 Chlorine dioxide Substances 0.000 description 4
- 239000003957 anion exchange resin Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 235000019398 chlorine dioxide Nutrition 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001805 chlorine compounds Chemical class 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 239000012286 potassium permanganate Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000202567 Fatsia japonica Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004045 organic chlorine compounds Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/04—Processes using organic exchangers
- B01J41/07—Processes using organic exchangers in the weakly basic form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/08—Chlorine-containing liquid regeneration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/928—Paper mill waste, e.g. white water, black liquor treated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7514424A SE395920B (sv) | 1975-12-19 | 1975-12-19 | Sett vid blekning och tvettning v cellulosamassa |
| SE7514424-6 | 1975-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1082856A true CA1082856A (en) | 1980-08-05 |
Family
ID=20326394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA268,159A Expired CA1082856A (en) | 1975-12-19 | 1976-12-17 | Process related to pulp bleaching |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4070234A (enExample) |
| JP (1) | JPS5277203A (enExample) |
| CA (1) | CA1082856A (enExample) |
| FI (1) | FI763618A7 (enExample) |
| SE (1) | SE395920B (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5126009A (en) * | 1986-05-30 | 1992-06-30 | Pulp And Paper Research Institute Of Canada | Process for decreasing the charge of chemical required in a chlorine bleaching extraction stage |
| US5785810A (en) * | 1991-08-21 | 1998-07-28 | Salminen; Reijo K. | Wood pulp processing apparatus and method |
| WO1994019534A1 (en) * | 1993-02-19 | 1994-09-01 | Salminen Reijo K | Wood pulp processing apparatus and method |
| US6589427B2 (en) * | 2001-02-28 | 2003-07-08 | Council Of Scientific & Industrial Research | Process for treatment of mixture of spent wash from distillery and black liquor from pulp and paper industry |
| FI126551B (fi) | 2009-11-25 | 2017-02-15 | Andritz Oy | Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2243141A1 (de) * | 1971-09-16 | 1973-03-22 | Uddeholms Ab | Verfahren zum reinigen von ligninhaltigen abwaessern aus holzverarbeitenden und aehnlichen industriebetrieben |
| US4000033A (en) * | 1973-04-25 | 1976-12-28 | Canadian Patents And Development Limited | Removal of color and organic matter from kraft process bleach effluents |
| SE395486B (sv) * | 1974-01-25 | 1977-08-15 | Mo Och Domsjoe Ab | Sett att minska emissionen av organisk substans vid cellulosafabriker |
-
1975
- 1975-12-19 SE SE7514424A patent/SE395920B/xx unknown
-
1976
- 1976-12-09 US US05/748,895 patent/US4070234A/en not_active Expired - Lifetime
- 1976-12-16 FI FI763618A patent/FI763618A7/fi not_active Application Discontinuation
- 1976-12-17 CA CA268,159A patent/CA1082856A/en not_active Expired
- 1976-12-17 JP JP51151843A patent/JPS5277203A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FI763618A7 (enExample) | 1977-06-20 |
| JPS5277203A (en) | 1977-06-29 |
| SE395920B (sv) | 1977-08-29 |
| SE7514424L (sv) | 1977-06-20 |
| US4070234A (en) | 1978-01-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |