SE456250B - Tvettningsmetod for framstellning av fran fororeningar befriad, sekunder fibrer med utgangspunkt fran fororenad sekunder fibrer - Google Patents
Tvettningsmetod for framstellning av fran fororeningar befriad, sekunder fibrer med utgangspunkt fran fororenad sekunder fibrerInfo
- Publication number
- SE456250B SE456250B SE8007949A SE8007949A SE456250B SE 456250 B SE456250 B SE 456250B SE 8007949 A SE8007949 A SE 8007949A SE 8007949 A SE8007949 A SE 8007949A SE 456250 B SE456250 B SE 456250B
- Authority
- SE
- Sweden
- Prior art keywords
- fiber
- temperature
- foam
- aqueous medium
- deinking
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 62
- 238000005406 washing Methods 0.000 title claims description 33
- 239000003344 environmental pollutant Substances 0.000 title 1
- 239000000835 fiber Substances 0.000 claims description 78
- 239000004094 surface-active agent Substances 0.000 claims description 48
- 239000012736 aqueous medium Substances 0.000 claims description 24
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 22
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 20
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 16
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 15
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 15
- 125000004432 carbon atom Chemical group C* 0.000 claims description 15
- 230000002209 hydrophobic effect Effects 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 9
- 229920001451 polypropylene glycol Polymers 0.000 claims description 8
- 125000001931 aliphatic group Chemical group 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 239000006260 foam Substances 0.000 description 48
- 239000002761 deinking Substances 0.000 description 42
- 230000008569 process Effects 0.000 description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 239000000463 material Substances 0.000 description 26
- 239000000976 ink Substances 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 239000000047 product Substances 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 16
- 239000002002 slurry Substances 0.000 description 15
- 238000005188 flotation Methods 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 13
- 238000005187 foaming Methods 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 13
- 239000002736 nonionic surfactant Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 150000001298 alcohols Chemical class 0.000 description 9
- 239000002609 medium Substances 0.000 description 9
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 9
- 238000004537 pulping Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- -1 alkyl aromatic ether Chemical class 0.000 description 8
- 229920000742 Cotton Polymers 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 7
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 6
- 229940073608 benzyl chloride Drugs 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229920003043 Cellulose fiber Polymers 0.000 description 5
- 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 5
- 239000004721 Polyphenylene oxide Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical group C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 229920000570 polyether Polymers 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000001033 ether group Chemical group 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 125000006353 oxyethylene group Chemical group 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- DYBIGIADVHIODH-UHFFFAOYSA-N 2-nonylphenol;oxirane Chemical class C1CO1.CCCCCCCCCC1=CC=CC=C1O DYBIGIADVHIODH-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- VIBDJEWPNNCFQO-UHFFFAOYSA-N ethane-1,1,2-triol Chemical group OCC(O)O VIBDJEWPNNCFQO-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- LRNZISCMDMBPJN-UHFFFAOYSA-N 2-(9-hydroxynonyl)phenol Chemical compound OCCCCCCCCCC1=CC=CC=C1O LRNZISCMDMBPJN-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000006315 carbonylation Effects 0.000 description 1
- 238000005810 carbonylation reaction Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000010699 lard oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 239000013587 production medium Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000013014 purified material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 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
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000002747 voluntary effect Effects 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
- D21C5/025—De-inking
- D21C5/027—Chemicals therefor
-
- 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)
- Detergent Compositions (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9374479A | 1979-11-13 | 1979-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8007949L SE8007949L (sv) | 1981-05-14 |
| SE456250B true SE456250B (sv) | 1988-09-19 |
Family
ID=22240461
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8007949A SE456250B (sv) | 1979-11-13 | 1980-11-12 | Tvettningsmetod for framstellning av fran fororeningar befriad, sekunder fibrer med utgangspunkt fran fororenad sekunder fibrer |
| SE8601383A SE456251B (sv) | 1979-11-13 | 1986-03-25 | Tvettningsmetod for framstellning av avsvertad, sekunder fiber via en mellanliggande suspension av sekunder fiber, i vilken partiklar av trycksverta er fordelade |
| SE8601384A SE456252B (sv) | 1979-11-13 | 1986-03-25 | Metod att minska mengden skum som bildas i en process av tvettningstyp for avsvertning av sekunder fiber |
| SE8601385A SE456253B (sv) | 1979-11-13 | 1986-03-25 | Tvettningsmetod for framstellning av avsvertad sekunder fiber med utgangspunkt fran sekunder fiber som innehaller trycksverta |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8601383A SE456251B (sv) | 1979-11-13 | 1986-03-25 | Tvettningsmetod for framstellning av avsvertad, sekunder fiber via en mellanliggande suspension av sekunder fiber, i vilken partiklar av trycksverta er fordelade |
| SE8601384A SE456252B (sv) | 1979-11-13 | 1986-03-25 | Metod att minska mengden skum som bildas i en process av tvettningstyp for avsvertning av sekunder fiber |
| SE8601385A SE456253B (sv) | 1979-11-13 | 1986-03-25 | Tvettningsmetod for framstellning av avsvertad sekunder fiber med utgangspunkt fran sekunder fiber som innehaller trycksverta |
Country Status (7)
| Country | Link |
|---|---|
| BR (1) | BR8007390A (it) |
| CA (1) | CA1151812A (it) |
| FI (1) | FI73015C (it) |
| GB (1) | GB2063326B (it) |
| IT (1) | IT1134201B (it) |
| NO (1) | NO160385C (it) |
| SE (4) | SE456250B (it) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4820379A (en) * | 1986-10-16 | 1989-04-11 | Ppg Industries, Inc. | Method for deinking wastepaper with a halogenated polyethylene oxide and a polymeric material |
| WO1990010749A1 (en) * | 1989-03-15 | 1990-09-20 | Bdl Specialist Products Limited | Method of de-inking waste paper materials |
| US5417808A (en) * | 1991-08-30 | 1995-05-23 | Lion Corporation | Deinking composition for flotation and deinking method |
| DE69303264T2 (de) * | 1993-02-10 | 1996-10-31 | Lion Corp | Entfärbungszusammensetzung zur Flotation und Entfärbungsverfahren |
| JPH10500739A (ja) * | 1994-03-08 | 1998-01-20 | バックマン・ラボラトリーズ・インターナショナル・インコーポレーテッド | 印刷インキの凝集方法及びその方法に使用するための配合物 |
| EP1309754A2 (en) * | 2000-08-07 | 2003-05-14 | Kao Specialties Americas | Flotation deinking process |
| WO2015006362A1 (en) * | 2013-07-11 | 2015-01-15 | Invista Technologies S.A.R.L. | Processes for removal of contaminants from cellulosic material |
-
1980
- 1980-11-07 IT IT2584580A patent/IT1134201B/it active
- 1980-11-12 NO NO803412A patent/NO160385C/no unknown
- 1980-11-12 CA CA000364507A patent/CA1151812A/en not_active Expired
- 1980-11-12 GB GB8036279A patent/GB2063326B/en not_active Expired
- 1980-11-12 SE SE8007949A patent/SE456250B/sv not_active IP Right Cessation
- 1980-11-12 BR BR8007390A patent/BR8007390A/pt unknown
- 1980-11-13 FI FI803553A patent/FI73015C/fi not_active IP Right Cessation
-
1986
- 1986-03-25 SE SE8601383A patent/SE456251B/xx not_active IP Right Cessation
- 1986-03-25 SE SE8601384A patent/SE456252B/sv not_active IP Right Cessation
- 1986-03-25 SE SE8601385A patent/SE456253B/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE8601385D0 (sv) | 1986-03-25 |
| FI803553L (fi) | 1981-05-14 |
| SE456252B (sv) | 1988-09-19 |
| NO160385B (no) | 1989-01-02 |
| BR8007390A (pt) | 1981-05-26 |
| FI73015B (fi) | 1987-04-30 |
| IT8025845A0 (it) | 1980-11-07 |
| NO803412L (no) | 1981-05-14 |
| FI73015C (fi) | 1987-08-10 |
| SE8601385L (sv) | 1986-03-25 |
| GB2063326A (en) | 1981-06-03 |
| SE8601384D0 (sv) | 1986-03-25 |
| NO160385C (no) | 1989-04-12 |
| GB2063326B (en) | 1984-10-03 |
| CA1151812A (en) | 1983-08-16 |
| SE8007949L (sv) | 1981-05-14 |
| SE456251B (sv) | 1988-09-19 |
| SE8601384L (sv) | 1986-03-25 |
| SE8601383D0 (sv) | 1986-03-25 |
| IT1134201B (it) | 1986-08-13 |
| SE8601383L (sv) | 1986-03-25 |
| SE456253B (sv) | 1988-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4518459A (en) | Methods of deinking secondary fibers | |
| US4960540A (en) | Alkoxylated bis-amide defoaming compounds | |
| US4612352A (en) | Water-soluble or water-dispersible graft polymers, their preparation and their use | |
| JP3176371B2 (ja) | 古紙のインキ除去法 | |
| US4666558A (en) | Process for newspaper deinking using low-foaming surfactant deinking agent | |
| US4013505A (en) | Method of deinking printed wastepapers | |
| FI70055B (fi) | Foerfarande foer avlaegsnande av trycksvaerta fraon avfallspapper | |
| SE461652B (sv) | Skumreglerande, ph-kaenslig alkylaminpolyeter | |
| JP5475469B2 (ja) | クラフトパルプ用洗浄剤を用いたクラフトパルプの製造方法 | |
| US4946625A (en) | Particulate defoaming compositions | |
| CA2197348C (en) | Flotation deinking of wastepaper using a froth controlling agent | |
| JPS6325115B2 (it) | ||
| SE456250B (sv) | Tvettningsmetod for framstellning av fran fororeningar befriad, sekunder fibrer med utgangspunkt fran fororenad sekunder fibrer | |
| JP4233867B2 (ja) | フロテーション脱墨方法 | |
| JP2005520057A6 (ja) | フロテーション脱墨方法 | |
| US4147616A (en) | Apparatus for deinking printed wastepapers | |
| US4871483A (en) | Novel non-depositing defoaming compositions | |
| JPH11199291A (ja) | 消泡剤、建材ボード及びその製造方法 | |
| US5258099A (en) | Office wastepaper deinking process using fatty alcohols | |
| US4956119A (en) | Particulate defoaming compositions | |
| CA1124459A (en) | Alkaline surfactant system for de-inking printed fibrous material | |
| SU717195A1 (ru) | Способ обработки печатной макулатуры | |
| JP5457290B2 (ja) | 脱インキパルプの製造方法 | |
| CA1324058C (en) | Particulate stabilized anti-foam compositions and methods | |
| NO324063B1 (no) | Framgangsmate for a redusere skum i et vandig medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 8007949-4 Format of ref document f/p: F |
|
| NUG | Patent has lapsed |
Ref document number: 8007949-4 Format of ref document f/p: F |