JPH0219236B2 - - Google Patents
Info
- Publication number
- JPH0219236B2 JPH0219236B2 JP56053770A JP5377081A JPH0219236B2 JP H0219236 B2 JPH0219236 B2 JP H0219236B2 JP 56053770 A JP56053770 A JP 56053770A JP 5377081 A JP5377081 A JP 5377081A JP H0219236 B2 JPH0219236 B2 JP H0219236B2
- Authority
- JP
- Japan
- Prior art keywords
- stage
- pulp
- bleaching
- washing
- backwater
- 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 - Lifetime
Links
- 238000004061 bleaching Methods 0.000 claims description 58
- 238000005406 washing Methods 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 17
- 150000002978 peroxides Chemical class 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010790 dilution Methods 0.000 claims description 9
- 239000012895 dilution Substances 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 239000011347 resin Substances 0.000 description 48
- 229920005989 resin Polymers 0.000 description 48
- 239000000126 substance Substances 0.000 description 21
- 229920001131 Pulp (paper) Polymers 0.000 description 16
- 238000002474 experimental method Methods 0.000 description 10
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 description 8
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 description 8
- 239000007844 bleaching agent Substances 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 208000005156 Dehydration Diseases 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 239000013505 freshwater Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005185 salting out Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 235000010265 sodium sulphite Nutrition 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
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8002728A SE445051B (sv) | 1980-04-10 | 1980-04-10 | Sett vid tillverkning av mekanisk, i huvudsak hartsfri cellulosamassa |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56159384A JPS56159384A (en) | 1981-12-08 |
| JPH0219236B2 true JPH0219236B2 (fi) | 1990-05-01 |
Family
ID=20340719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5377081A Granted JPS56159384A (en) | 1980-04-10 | 1981-04-09 | Production of mechanical cellulose pulp |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS56159384A (fi) |
| AU (2) | AU6901281A (fi) |
| CA (1) | CA1174013A (fi) |
| DE (1) | DE3114427A1 (fi) |
| FI (1) | FI73016C (fi) |
| FR (1) | FR2480321A1 (fi) |
| IT (1) | IT1209859B (fi) |
| NL (1) | NL187865C (fi) |
| NO (1) | NO159107C (fi) |
| SE (1) | SE445051B (fi) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064110A (zh) * | 2015-07-29 | 2015-11-18 | 华南理工大学 | 一种棉短绒制浆装置及其制浆方法 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2567930B1 (fr) * | 1984-07-17 | 1986-08-29 | Centre Tech Ind Papier | Procede et installation pour le recyclage de vieux papiers imprimes |
| SE8501246L (sv) * | 1985-03-13 | 1986-09-14 | Eka Ab | Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvendning av enstegsimpregnering |
| CA1294396C (en) * | 1986-05-30 | 1992-01-21 | Richard Berry | Process for decreasing the charge of chemical required in a bleaching extraction stage |
| FI115978B (fi) * | 2000-11-16 | 2005-08-31 | Ciba Sc Holding Ag | Menetelmä ei-kuitupitoisten ainesten ottamiseksi talteen puumateriaalista |
| CN105019286B (zh) * | 2015-07-29 | 2017-01-25 | 华南理工大学 | 棉短绒高浓过氧化氢漂白制备精制棉的装置及方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE420329C (sv) * | 1978-02-16 | 1984-10-15 | Mo Och Domsjoe Ab | Forfarande for framstellning av slipmassa vid overtryck |
| AU539108B2 (en) * | 1979-04-17 | 1984-09-13 | Interox Societe Anonyme | Delignification of unbleached chemical pulp |
| SE443383C (sv) * | 1981-01-14 | 1987-11-16 | Mo Och Domsjoe Ab | Forfarande for tvettning av cellulosamassa |
| FR2522030A1 (fr) * | 1982-02-19 | 1983-08-26 | Scherb Metenett Papeteries | Procede de blanchiment selectif de pate a papier et papier obtenu par mise en oeuvre de ce procede |
-
1980
- 1980-04-10 SE SE8002728A patent/SE445051B/xx not_active IP Right Cessation
-
1981
- 1981-04-01 AU AU69012/81A patent/AU6901281A/en not_active Abandoned
- 1981-04-06 FR FR8106834A patent/FR2480321A1/fr active Granted
- 1981-04-07 IT IT8148224A patent/IT1209859B/it active
- 1981-04-08 NL NLAANVRAGE8101748,A patent/NL187865C/xx not_active IP Right Cessation
- 1981-04-09 CA CA000375146A patent/CA1174013A/en not_active Expired
- 1981-04-09 DE DE19813114427 patent/DE3114427A1/de active Granted
- 1981-04-09 FI FI811096A patent/FI73016C/fi not_active IP Right Cessation
- 1981-04-09 NO NO811225A patent/NO159107C/no unknown
- 1981-04-09 JP JP5377081A patent/JPS56159384A/ja active Granted
-
1984
- 1984-01-09 AU AU23169/84A patent/AU568112B2/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064110A (zh) * | 2015-07-29 | 2015-11-18 | 华南理工大学 | 一种棉短绒制浆装置及其制浆方法 |
| CN105064110B (zh) * | 2015-07-29 | 2017-04-12 | 华南理工大学 | 一种棉短绒制浆装置及其制浆方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| FI73016B (fi) | 1987-04-30 |
| CA1174013A (en) | 1984-09-11 |
| SE8002728L (sv) | 1981-10-11 |
| JPS56159384A (en) | 1981-12-08 |
| SE445051B (sv) | 1986-05-26 |
| FI73016C (fi) | 1987-08-10 |
| AU568112B2 (en) | 1987-12-17 |
| DE3114427A1 (de) | 1982-01-14 |
| DE3114427C2 (fi) | 1987-12-17 |
| NL187865B (nl) | 1991-09-02 |
| NL8101748A (nl) | 1981-11-02 |
| NO811225L (no) | 1981-10-12 |
| AU6901281A (en) | 1981-10-29 |
| FI811096L (fi) | 1981-10-11 |
| NO159107B (no) | 1988-08-22 |
| NL187865C (nl) | 1992-02-03 |
| NO159107C (no) | 1988-11-30 |
| FR2480321B1 (fi) | 1984-09-14 |
| IT8148224A0 (it) | 1981-04-07 |
| FR2480321A1 (fr) | 1981-10-16 |
| IT1209859B (it) | 1989-08-30 |
| AU2316984A (en) | 1984-05-10 |
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