NO831429L - Behandling av masse med oksygen. - Google Patents
Behandling av masse med oksygen.Info
- Publication number
- NO831429L NO831429L NO831429A NO831429A NO831429L NO 831429 L NO831429 L NO 831429L NO 831429 A NO831429 A NO 831429A NO 831429 A NO831429 A NO 831429A NO 831429 L NO831429 L NO 831429L
- Authority
- NO
- Norway
- Prior art keywords
- oxygen
- mass
- mixing
- radius
- metric ton
- Prior art date
Links
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 395
- 239000001301 oxygen Substances 0.000 title claims abstract description 394
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 392
- 238000011282 treatment Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 328
- 238000002156 mixing Methods 0.000 claims abstract description 270
- 239000002002 slurry Substances 0.000 claims abstract description 148
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 146
- 238000003860 storage Methods 0.000 claims abstract description 92
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 73
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 73
- 238000000605 extraction Methods 0.000 claims abstract description 57
- 230000008569 process Effects 0.000 claims abstract description 57
- 239000000460 chlorine Substances 0.000 claims abstract description 55
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 48
- 239000003513 alkali Substances 0.000 claims abstract description 46
- 239000000126 substance Substances 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 25
- 238000009792 diffusion process Methods 0.000 claims abstract description 23
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 21
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 13
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003570 air Substances 0.000 claims abstract description 7
- 229910001902 chlorine oxide Inorganic materials 0.000 claims abstract description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000002978 peroxides Chemical class 0.000 claims abstract description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 3
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 3
- OMBRFUXPXNIUCZ-UHFFFAOYSA-N dioxidonitrogen(1+) Chemical compound O=[N+]=O OMBRFUXPXNIUCZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 128
- 238000005406 washing Methods 0.000 claims description 83
- 238000004061 bleaching Methods 0.000 claims description 75
- 239000007787 solid Substances 0.000 claims description 50
- 239000000203 mixture Substances 0.000 claims description 41
- 239000002023 wood Substances 0.000 claims description 40
- 238000010411 cooking Methods 0.000 claims description 33
- 239000000047 product Substances 0.000 claims description 22
- 230000032258 transport Effects 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims 24
- 238000010438 heat treatment Methods 0.000 claims 18
- 238000010979 pH adjustment Methods 0.000 claims 4
- 239000011343 solid material Substances 0.000 claims 3
- 239000006227 byproduct Substances 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000003381 stabilizer Substances 0.000 claims 1
- 239000013055 pulp slurry Substances 0.000 abstract description 35
- 238000011144 upstream manufacturing Methods 0.000 abstract description 13
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 239000000706 filtrate Substances 0.000 description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 58
- 239000000835 fiber Substances 0.000 description 36
- 238000012360 testing method Methods 0.000 description 33
- 238000007789 sealing Methods 0.000 description 23
- 239000000243 solution Substances 0.000 description 23
- 238000007792 addition Methods 0.000 description 22
- 238000010790 dilution Methods 0.000 description 19
- 239000012895 dilution Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 14
- 238000004537 pulping Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 12
- 239000007844 bleaching agent Substances 0.000 description 11
- 238000007664 blowing Methods 0.000 description 10
- 239000002699 waste material Substances 0.000 description 10
- 239000002655 kraft paper Substances 0.000 description 9
- 229920005610 lignin Polymers 0.000 description 9
- 238000012986 modification Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 239000000123 paper Substances 0.000 description 7
- 230000035484 reaction time Effects 0.000 description 7
- 230000014759 maintenance of location Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000001012 protector Effects 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 239000003518 caustics Substances 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 5
- 238000007670 refining Methods 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 235000014633 carbohydrates Nutrition 0.000 description 4
- 150000001720 carbohydrates Chemical class 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000012286 potassium permanganate Substances 0.000 description 4
- 238000010561 standard procedure Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- -1 oxygen-ozone-hypochlorite Chemical compound 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- OGIIWTRTOXDWEH-UHFFFAOYSA-N [O].[O-][O+]=O Chemical compound [O].[O-][O+]=O OGIIWTRTOXDWEH-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000004076 pulp bleaching Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- DNNMMTMWKAQQMC-UHFFFAOYSA-N C(C)(=O)O.O=[O+][O-].[O] Chemical group C(C)(=O)O.O=[O+][O-].[O] DNNMMTMWKAQQMC-UHFFFAOYSA-N 0.000 description 1
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000004133 Sodium thiosulphate Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 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
- 238000007865 diluting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000002640 oxygen therapy Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Shovels (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Earth Drilling (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1981/001187 WO1983000816A1 (en) | 1981-09-04 | 1981-09-04 | Method and apparatus for mixing pulp with oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO831429L true NO831429L (no) | 1983-04-22 |
Family
ID=22161409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO831429A NO831429L (no) | 1981-09-04 | 1983-04-22 | Behandling av masse med oksygen. |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0087412B1 (pt) |
| JP (1) | JPS58501328A (pt) |
| AT (1) | ATE31249T1 (pt) |
| BR (1) | BR8109040A (pt) |
| DE (1) | DE3176561D1 (pt) |
| FI (1) | FI74497C (pt) |
| NO (1) | NO831429L (pt) |
| WO (1) | WO1983000816A1 (pt) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI89516B (fi) | 1989-05-10 | 1993-06-30 | Ahlstroem Oy | Foerfarande foer blekning av cellulosamassa med otson |
| US20170175329A1 (en) * | 2015-12-17 | 2017-06-22 | Nicole Rumore | Methods for oxygen delignification and ozone bleaching of pulp |
| CN114326573B (zh) * | 2021-12-24 | 2023-10-10 | 浙江华章科技有限公司 | 一种基于plc系统的连续配浆方法及系统 |
| CN117684408B (zh) * | 2024-02-02 | 2024-05-14 | 汶瑞机械(山东)有限公司 | 一种刮料器 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1591070A (en) * | 1925-02-27 | 1926-07-06 | Robert B Wolf | Bleaching apparatus |
| US1827710A (en) * | 1928-07-28 | 1931-10-13 | Leyst-Kuchenmeister Carl | Process for treating fibrous materials |
| US2516447A (en) * | 1947-02-24 | 1950-07-25 | Elmer R Burling | Method and apparatus for chemical treatment |
| US2772138A (en) * | 1952-12-31 | 1956-11-27 | Hercules Powder Co Ltd | Continuous bleaching process |
| US3293117A (en) * | 1963-03-27 | 1966-12-20 | Improved Machinery Inc | High density pulp mixing |
| CA834629A (en) * | 1966-09-30 | 1970-02-17 | Amiel W. Brinkley, Jr. | Rapid high consistency bleaching of pulp |
| SE355614B (pt) * | 1970-05-13 | 1973-04-30 | Mo Och Domsjoe Ab | |
| US3832276A (en) * | 1973-03-07 | 1974-08-27 | Int Paper Co | Delignification and bleaching of a cellulose pulp slurry with oxygen |
| JPS5111681A (pt) * | 1974-07-19 | 1976-01-29 | Sanyo Electric Co | |
| SE389351B (sv) * | 1975-03-14 | 1976-11-01 | Kamyr Ab | Sett och anordning for fordelning och inblandning av gas och/eller vetska i massasuspensioner av hog koncentration. |
| SE403916B (sv) * | 1975-06-04 | 1978-09-11 | Rolf Bertil Reinhall | Anordning vid malapparater for lignocellulosahaltigt material |
| JPS52114702A (en) * | 1976-03-19 | 1977-09-26 | Toyo Pulp Co Ltd | Process and device for treating cellulose material |
| US4198266A (en) * | 1977-10-12 | 1980-04-15 | Airco, Inc. | Oxygen delignification of wood pulp |
| US4363697A (en) * | 1979-12-03 | 1982-12-14 | The Black Clawson Company | Method for medium consistency oxygen delignification of pulp |
-
1981
- 1981-09-04 JP JP56503046A patent/JPS58501328A/ja active Pending
- 1981-09-04 EP EP81902540A patent/EP0087412B1/en not_active Expired
- 1981-09-04 WO PCT/US1981/001187 patent/WO1983000816A1/en active IP Right Grant
- 1981-09-04 DE DE8181902540T patent/DE3176561D1/de not_active Expired
- 1981-09-04 AT AT81902540T patent/ATE31249T1/de not_active IP Right Cessation
- 1981-09-04 BR BR8109040A patent/BR8109040A/pt unknown
-
1983
- 1983-04-22 NO NO831429A patent/NO831429L/no unknown
- 1983-04-29 FI FI831474A patent/FI74497C/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BR8109040A (pt) | 1983-09-06 |
| EP0087412A1 (en) | 1983-09-07 |
| EP0087412B1 (en) | 1987-12-09 |
| WO1983000816A1 (en) | 1983-03-17 |
| FI831474L (fi) | 1983-04-29 |
| ATE31249T1 (de) | 1987-12-15 |
| JPS58501328A (ja) | 1983-08-11 |
| EP0087412A4 (en) | 1985-06-10 |
| FI74497C (fi) | 1988-02-08 |
| FI831474A0 (fi) | 1983-04-29 |
| FI74497B (fi) | 1987-10-30 |
| DE3176561D1 (en) | 1988-01-21 |
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