FI69655C - Anvaendning av polyalkylenoxider foer separering av cellulosafibrer - Google Patents
Anvaendning av polyalkylenoxider foer separering av cellulosafibrer Download PDFInfo
- Publication number
- FI69655C FI69655C FI812579A FI812579A FI69655C FI 69655 C FI69655 C FI 69655C FI 812579 A FI812579 A FI 812579A FI 812579 A FI812579 A FI 812579A FI 69655 C FI69655 C FI 69655C
- Authority
- FI
- Finland
- Prior art keywords
- unbleached
- pulp
- fibers
- fibres
- polyalkylene oxides
- Prior art date
Links
- 239000000835 fiber Substances 0.000 claims abstract description 46
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 31
- 229910021653 sulphate ion Inorganic materials 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 229920000233 poly(alkylene oxides) Polymers 0.000 claims abstract description 24
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 238000005188 flotation Methods 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 238000005189 flocculation Methods 0.000 abstract description 2
- 230000016615 flocculation Effects 0.000 abstract description 2
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- 244000144992 flock Species 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 11
- 229920001131 Pulp (paper) Polymers 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 239000011111 cardboard Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010893 paper waste Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 125000002947 alkylene group Chemical group 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- -1 fines Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction 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
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002761 deinking Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000009282 microflotation Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000002025 wood fiber Substances 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/022—Chemicals therefor
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
- D21F1/82—Pulp catching, de-watering, or recovering; Re-use of pulp-water adding fibre agglomeration compositions
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Paper (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Artificial Filaments (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8000141 | 1980-01-08 | ||
| SE8000141A SE419778B (sv) | 1980-01-08 | 1980-01-08 | Anvendning av polyalkylenoxider for separation av cellulosafibrer |
| PCT/SE1980/000347 WO1981002030A1 (en) | 1980-01-08 | 1980-12-23 | Use of polyalkylene oxides for the separation of cellulose fibres |
| SE8000347 | 1980-12-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI812579L FI812579L (fi) | 1981-08-21 |
| FI69655B FI69655B (fi) | 1985-11-29 |
| FI69655C true FI69655C (fi) | 1986-03-10 |
Family
ID=20339915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI812579A FI69655C (fi) | 1980-01-08 | 1981-08-21 | Anvaendning av polyalkylenoxider foer separering av cellulosafibrer |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4362600A (de) |
| EP (1) | EP0032364B1 (de) |
| JP (1) | JPS5922831B2 (de) |
| AT (1) | ATE2629T1 (de) |
| CA (1) | CA1150913A (de) |
| DE (1) | DE3062142D1 (de) |
| FI (1) | FI69655C (de) |
| NO (1) | NO813039L (de) |
| SE (1) | SE419778B (de) |
| WO (1) | WO1981002030A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0463743U (de) * | 1990-10-15 | 1992-05-29 | ||
| GB9212867D0 (en) * | 1992-06-17 | 1992-07-29 | Wiggins Teape Group Ltd | Recovery and re-use of raw materials from paper mill waste sludge |
| US5246116A (en) * | 1992-09-22 | 1993-09-21 | Reynolds Metals Company | Method and apparatus for separation and recovery of the components from foil-containing laminates |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3069306A (en) * | 1960-04-20 | 1962-12-18 | Petrolite Corp | Oxyalkylated water process |
| US3141816A (en) * | 1960-07-27 | 1964-07-21 | Nalco Chemical Co | Method of improving operational efficiency of white water recovery systems |
| US3884750A (en) * | 1972-09-25 | 1975-05-20 | Little Inc A | Method of recovering separate fiber fractions from corrugated board |
| US3925150A (en) * | 1973-04-06 | 1975-12-09 | Black Clawson Co | Selective reclamation of waste paper products |
-
1980
- 1980-01-08 SE SE8000141A patent/SE419778B/sv not_active IP Right Cessation
- 1980-12-23 JP JP56500414A patent/JPS5922831B2/ja not_active Expired
- 1980-12-23 US US06/293,212 patent/US4362600A/en not_active Expired - Fee Related
- 1980-12-23 WO PCT/SE1980/000347 patent/WO1981002030A1/en not_active Ceased
- 1980-12-29 DE DE8080850196T patent/DE3062142D1/de not_active Expired
- 1980-12-29 AT AT80850196T patent/ATE2629T1/de not_active IP Right Cessation
- 1980-12-29 EP EP19800850196 patent/EP0032364B1/de not_active Expired
-
1981
- 1981-01-07 CA CA000367987A patent/CA1150913A/en not_active Expired
- 1981-08-21 FI FI812579A patent/FI69655C/fi not_active IP Right Cessation
- 1981-09-07 NO NO813039A patent/NO813039L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE419778B (sv) | 1981-08-24 |
| JPS5922831B2 (ja) | 1984-05-29 |
| NO813039L (no) | 1981-09-07 |
| US4362600A (en) | 1982-12-07 |
| JPS56501851A (de) | 1981-12-17 |
| FI69655B (fi) | 1985-11-29 |
| EP0032364B1 (de) | 1983-02-23 |
| FI812579L (fi) | 1981-08-21 |
| CA1150913A (en) | 1983-08-02 |
| SE8000141L (sv) | 1981-07-09 |
| DE3062142D1 (en) | 1983-03-31 |
| EP0032364A1 (de) | 1981-07-22 |
| WO1981002030A1 (en) | 1981-07-23 |
| ATE2629T1 (de) | 1983-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: SVENSKA TRAEFORSKNINGSINSTITUTET |