CA1045759A - Bleaching of lignocellulosic material with nitrogen oxides - Google Patents
Bleaching of lignocellulosic material with nitrogen oxidesInfo
- Publication number
- CA1045759A CA1045759A CA228,164A CA228164A CA1045759A CA 1045759 A CA1045759 A CA 1045759A CA 228164 A CA228164 A CA 228164A CA 1045759 A CA1045759 A CA 1045759A
- Authority
- CA
- Canada
- Prior art keywords
- treatment
- nitric oxide
- lignocellulosic material
- aqueous medium
- oxygen
- 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
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 239000012978 lignocellulosic material Substances 0.000 title claims abstract description 38
- 238000004061 bleaching Methods 0.000 title claims abstract description 22
- 238000011282 treatment Methods 0.000 claims abstract description 75
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 50
- 239000001301 oxygen Substances 0.000 claims abstract description 50
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 29
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims abstract description 26
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000000460 chlorine Substances 0.000 claims abstract description 14
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 11
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 58
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000004155 Chlorine dioxide Substances 0.000 claims description 28
- 239000012736 aqueous medium Substances 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims description 19
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 4
- 239000003518 caustics Substances 0.000 abstract description 11
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 229910017464 nitrogen compound Inorganic materials 0.000 abstract 1
- 150000002830 nitrogen compounds Chemical class 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 72
- 239000002655 kraft paper Substances 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000011122 softwood Substances 0.000 description 5
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 239000007900 aqueous suspension Substances 0.000 description 4
- 238000005660 chlorination reaction Methods 0.000 description 4
- 239000011121 hardwood Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 241001236219 Pinus echinata Species 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 150000001805 chlorine compounds Chemical class 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000007173 Abies balsamea Nutrition 0.000 description 1
- 244000283070 Abies balsamea Species 0.000 description 1
- 235000004710 Abies lasiocarpa Nutrition 0.000 description 1
- 241000609240 Ambelania acida Species 0.000 description 1
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- BPVZSHMWRKGVSG-UHFFFAOYSA-N [O-][N+]=O.O[N+]([O-])=O Chemical compound [O-][N+]=O.O[N+]([O-])=O BPVZSHMWRKGVSG-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010905 bagasse Substances 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
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 238000012360 testing 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
- D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
-
- 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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25845/74A GB1505070A (en) | 1974-06-11 | 1974-06-11 | Process for bleaching of lignocellulosic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1045759A true CA1045759A (en) | 1979-01-09 |
Family
ID=10234280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA228,164A Expired CA1045759A (en) | 1974-06-11 | 1975-05-30 | Bleaching of lignocellulosic material with nitrogen oxides |
Country Status (10)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1070909A (en) * | 1976-05-04 | 1980-02-05 | Canadian Industries Limited | Nitrogen dioxide-oxygen delignification |
| SE421938B (sv) * | 1980-06-05 | 1982-02-08 | Mo Och Domsjoe Ab | Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning |
| SE425674B (sv) * | 1981-03-23 | 1982-10-25 | Mo Och Domsjoe Ab | Forfarande for delignifiering av cellulosamassa med kvevedioxid och syrgas |
| DE3118384C1 (de) * | 1981-05-09 | 1982-11-11 | Mannesmann AG, 4000 Düsseldorf | Verfahren zum Bleichen von chemisch hergestelltem Zellstoff mit Ozon |
| SE448006B (sv) * | 1981-09-21 | 1987-01-12 | Mo Och Domsjoe Ab | Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider |
| SE450393B (sv) * | 1981-10-27 | 1987-06-22 | Mo Och Domsjoe Ab | Forfarande for behandling av ved med kveveoxider och syrgas fore sulfatkokning |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE204460C (enrdf_load_stackoverflow) * | ||||
| DE212838C (enrdf_load_stackoverflow) * | ||||
| DE391713C (de) * | 1922-12-12 | 1924-03-11 | Paul Krais Dr | Verfahren zum Aufschliessen von Stroh, Schilf u. dgl. |
-
1974
- 1974-06-11 GB GB25845/74A patent/GB1505070A/en not_active Expired
-
1975
- 1975-05-30 CA CA228,164A patent/CA1045759A/en not_active Expired
- 1975-06-09 NO NO752025A patent/NO147761C/no unknown
- 1975-06-10 SE SE7506646A patent/SE7506646L/xx unknown
- 1975-06-10 FR FR7518079A patent/FR2274729A1/fr active Granted
- 1975-06-10 FI FI751734A patent/FI751734A7/fi not_active Application Discontinuation
- 1975-06-11 BR BR4721/75D patent/BR7503680A/pt unknown
- 1975-06-11 DE DE2526084A patent/DE2526084C2/de not_active Expired
- 1975-06-11 ES ES438433A patent/ES438433A1/es not_active Expired
- 1975-06-11 JP JP50069788A patent/JPS522003B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5132802A (enrdf_load_stackoverflow) | 1976-03-19 |
| DE2526084C2 (de) | 1981-11-26 |
| DE2526084A1 (de) | 1976-01-02 |
| FI751734A7 (enrdf_load_stackoverflow) | 1975-12-12 |
| SE7506646L (sv) | 1975-12-12 |
| NO147761C (no) | 1983-06-08 |
| ES438433A1 (es) | 1977-05-16 |
| BR7503680A (pt) | 1976-06-29 |
| NO752025L (enrdf_load_stackoverflow) | 1975-12-12 |
| FR2274729B1 (enrdf_load_stackoverflow) | 1978-09-22 |
| FR2274729A1 (fr) | 1976-01-09 |
| AU8201275A (en) | 1976-12-16 |
| GB1505070A (en) | 1978-03-22 |
| JPS522003B2 (enrdf_load_stackoverflow) | 1977-01-19 |
| NO147761B (no) | 1983-02-28 |
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