FI58522C - Foerfarande och anordning foer blekning av ett fibroest material speciellt cellulosa - Google Patents
Foerfarande och anordning foer blekning av ett fibroest material speciellt cellulosa Download PDFInfo
- Publication number
- FI58522C FI58522C FI209571A FI209571A FI58522C FI 58522 C FI58522 C FI 58522C FI 209571 A FI209571 A FI 209571A FI 209571 A FI209571 A FI 209571A FI 58522 C FI58522 C FI 58522C
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- tower
- column
- gas
- unbroken
- Prior art date
Links
- 238000004873 anchoring Methods 0.000 title 1
- 239000007789 gas Substances 0.000 claims description 34
- 238000004061 bleaching Methods 0.000 claims description 32
- 239000001913 cellulose Substances 0.000 claims description 31
- 229920002678 cellulose Polymers 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 18
- 238000010790 dilution Methods 0.000 claims description 17
- 239000012895 dilution Substances 0.000 claims description 17
- 239000007844 bleaching agent Substances 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 7
- 229910001882 dioxygen Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims 1
- 230000002441 reversible effect Effects 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 26
- 239000001301 oxygen Substances 0.000 description 26
- 229910052760 oxygen Inorganic materials 0.000 description 26
- 238000002474 experimental method Methods 0.000 description 14
- 239000000835 fiber Substances 0.000 description 13
- 238000012216 screening Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 235000002992 Betula pubescens Nutrition 0.000 description 1
- 241001520764 Betula pubescens Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000008582 Pinus sylvestris Nutrition 0.000 description 1
- 241000218626 Pinus sylvestris Species 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010446 mirabilite Substances 0.000 description 1
- 239000001839 pinus sylvestris Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000013055 pulp slurry Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Paper (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE10238/70A SE341868B (OSRAM) | 1970-07-24 | 1970-07-24 | |
| SE1023870 | 1970-07-24 | ||
| SE202371 | 1971-02-17 | ||
| SE202371 | 1971-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI58522B FI58522B (fi) | 1980-10-31 |
| FI58522C true FI58522C (fi) | 1981-12-07 |
Family
ID=26654315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI209571A FI58522C (fi) | 1970-07-24 | 1971-07-22 | Foerfarande och anordning foer blekning av ett fibroest material speciellt cellulosa |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS563478B1 (OSRAM) |
| DD (1) | DD98712A5 (OSRAM) |
| FI (1) | FI58522C (OSRAM) |
| NO (1) | NO143230C (OSRAM) |
-
1971
- 1971-07-22 FI FI209571A patent/FI58522C/fi active
- 1971-07-22 NO NO280171A patent/NO143230C/no unknown
- 1971-07-23 JP JP5468571A patent/JPS563478B1/ja active Pending
- 1971-07-23 DD DD15668671A patent/DD98712A5/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI58522B (fi) | 1980-10-31 |
| NO143230C (no) | 1982-10-15 |
| JPS563478B1 (OSRAM) | 1981-01-24 |
| NO143230B (no) | 1980-09-22 |
| DD98712A5 (OSRAM) | 1973-07-05 |
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