FI113375B - Förfarande för framställning av absorberande ämnen från lignocellulosamaterial - Google Patents
Förfarande för framställning av absorberande ämnen från lignocellulosamaterial Download PDFInfo
- Publication number
- FI113375B FI113375B FI20011034A FI20011034A FI113375B FI 113375 B FI113375 B FI 113375B FI 20011034 A FI20011034 A FI 20011034A FI 20011034 A FI20011034 A FI 20011034A FI 113375 B FI113375 B FI 113375B
- Authority
- FI
- Finland
- Prior art keywords
- process according
- lignocellulosic material
- treatment
- carried out
- water
- Prior art date
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- 239000000463 material Substances 0.000 title claims description 41
- 238000000034 method Methods 0.000 title claims description 30
- 239000002250 absorbent Substances 0.000 title claims description 21
- 230000002745 absorbent Effects 0.000 title claims description 21
- 239000012978 lignocellulosic material Substances 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000011282 treatment Methods 0.000 claims description 30
- 239000000178 monomer Substances 0.000 claims description 15
- 238000006116 polymerization reaction Methods 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 10
- 230000000977 initiatory effect Effects 0.000 claims description 9
- 229920002488 Hemicellulose Polymers 0.000 claims description 8
- 229920005610 lignin Polymers 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 239000004971 Cross linker Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 235000013339 cereals Nutrition 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims description 6
- 239000002585 base Substances 0.000 claims description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- 238000001238 wet grinding Methods 0.000 claims description 4
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 239000010903 husk Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 230000000379 polymerizing effect Effects 0.000 claims 1
- 239000011343 solid material Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 10
- 229920002678 cellulose Polymers 0.000 description 8
- 239000001913 cellulose Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000002657 fibrous material Substances 0.000 description 5
- 229920002472 Starch Polymers 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 235000019698 starch Nutrition 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010908 decantation Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 241000609240 Ambelania acida Species 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 2
- OKJIRPAQVSHGFK-UHFFFAOYSA-N N-acetylglycine Chemical compound CC(=O)NCC(O)=O OKJIRPAQVSHGFK-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000010905 bagasse Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000005341 cation exchange Methods 0.000 description 2
- 235000013330 chicken meat Nutrition 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 244000099147 Ananas comosus Species 0.000 description 1
- 235000007119 Ananas comosus Nutrition 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000004464 cereal grain Substances 0.000 description 1
- VZDYWEUILIUIDF-UHFFFAOYSA-J cerium(4+);disulfate Chemical compound [Ce+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O VZDYWEUILIUIDF-UHFFFAOYSA-J 0.000 description 1
- 229910000355 cerium(IV) sulfate Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- UJKWLAZYSLJTKA-UHFFFAOYSA-N edma Chemical compound O1CCOC2=CC(CC(C)NC)=CC=C21 UJKWLAZYSLJTKA-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009950 felting Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000009374 poultry farming Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
- 230000036967 uncompetitive effect Effects 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
- C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Graft Or Block Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polymerisation Methods In General (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Claims (18)
1. Förfarande för framställning av absorberande ämnen av lignocellulosamaterial, kännetecknat av att förfarandet omfattar följande steg: a) lignocellulosamaterialet behandlas med alkali säledes, att en del av ligninet och/eller hemicellulosan som ingar i materialet avlägsnas, b) efter alkalibehandlingen utföres en initieringsbehandling för att producera reaktiva radikaler i cellulosan, c) efter steg (b) tillsättes tili materialet ätminstone en monomer, som eller vilka innehaller vinylgrupper, samt ett tvärbindande ämne, d) materialet som bildats vid steg (c) polymeriseras.
2. Förfarande enligt patentkrav 1, kännetecknat av att lignocellulosamaterialet som är utgängsmaterial är fibrigt eller folieaktigt.
3. Förfarande enligt patentkrav 2, kännetecknat av att lignocellulosamaterialet bestar av spannmälsskal, agnar eller halm.
4. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat av att lignocellulosamaterialet tvättas med vatten ftjr att avlägsna orenheter före alkalibehandlingen vid steg (a). * M I t • · I • V
5. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat av att 30 : - 95%, fördelaktigt 50 - 80% av den sammanlagda mängden lignin och ·:··· hemicellulosa i utgängsmaterialet avlägsnas genom alkalibehandlingen vid steg (a) .;: samt genom en eventuell föregäende tvätt med vatten. • » • |
6. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat av att . fibrer separeras frän lignocellulosamaterialet och frän varandra med vätmalning vid ';;; steg (a) eller före det. I » »
7. Förfarande enligt nägot av patentkraven 1-6, kännetecknat av att fibrer : ’' ‘: separeras frän lignocellulosamaterialet och varandra med användning av extrusionsteknik. « » * 113375
8. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat av att initieringsbehandlingen vid steg (b) för att producera reaktiva radikaler sker med ett oxidationsmedel.
9. Förfarande enligt patentkrav 8, kännetecknat av att initieringsbehandlingen sker med väteperoxid.
10. Förfarande enligt patentkrav 8, kännetecknat av att initieringsbehandlingen sker med natriumpersulfat.
11. Förfarande enligt nagot av patentkraven 8 - 10, kännetecknat av att det vata fasta materialet efter alkali- och oxideringsbehandlingama vid stegen (a) och (b) överföres tili polymerisering direkt utan tvätt mellan stegen.
12. Förfarande enligt nagot av de föregäende patentkraven, kännetecknat av att en eller flere monomer samt ett tvärbindande ämne tillsättes samtidigt vid steg (c).
13. Förfarande enligt patentkrav 12, kännetecknat av att en eller flere monomer samt ett tvärbindande ämne tillsättes som blandning.
14. Förfarande enligt nagot av de föregäende patentkraven, kännetecknat av att ,. t monomeren är akrylsyra, metakrylsyra eller ett derivat av dessa. t t < « · » · * * * ·
15. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat av att » · '·*[ monomeren innehäller en joniserbar atomgrupp som inte deltar i polymerisations- ' : reaktionen. * Hill • * :,,,ί
16. Förfarande enligt nägot av patentkraven 1 - 14, kännetecknat av att polymeren frän steg (d) behandlas för att det i den skall bildas en joniserbar atomgrupp.
17. Förfarande enligt patentkrav 15 eller 16, kännetecknat av att den joniserbara . · , atomgruppen är en sulfonsyra. < * * » 5 f • | < > I
18. Förfarande enligt patentkrav 15 eller 16, kännetecknat av att den joniserbara : : ’: atomgruppen är en alkalisk grupp. * I ’ I I
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20011034A FI113375B (sv) | 2001-05-16 | 2001-05-16 | Förfarande för framställning av absorberande ämnen från lignocellulosamaterial |
| PCT/FI2002/000415 WO2002092669A1 (en) | 2001-05-16 | 2002-05-15 | A method for preparation of absorbing substances |
| CA002447520A CA2447520A1 (en) | 2001-05-16 | 2002-05-15 | A method for preparation of absorbing substances |
| EP02722325A EP1397419A1 (en) | 2001-05-16 | 2002-05-15 | A method for preparation of absorbing substances |
| US10/477,809 US20040231059A1 (en) | 2001-05-16 | 2002-05-15 | Method for preparation of absorbing substances |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20011034 | 2001-05-16 | ||
| FI20011034A FI113375B (sv) | 2001-05-16 | 2001-05-16 | Förfarande för framställning av absorberande ämnen från lignocellulosamaterial |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI20011034A0 FI20011034A0 (sv) | 2001-05-16 |
| FI20011034A FI20011034A (sv) | 2002-11-17 |
| FI113375B true FI113375B (sv) | 2004-04-15 |
Family
ID=8561214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20011034A FI113375B (sv) | 2001-05-16 | 2001-05-16 | Förfarande för framställning av absorberande ämnen från lignocellulosamaterial |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20040231059A1 (sv) |
| EP (1) | EP1397419A1 (sv) |
| CA (1) | CA2447520A1 (sv) |
| FI (1) | FI113375B (sv) |
| WO (1) | WO2002092669A1 (sv) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI122815B (sv) | 2005-04-18 | 2012-07-13 | Cerefi Oy | Metod för fraktionering av lignocellulosamaterialier och delar som har erhållits av dessa |
| FI20096198A0 (sv) * | 2009-11-18 | 2009-11-18 | Valtion Teknillinen | Oxiderad ligninhaltigt material, dess användning och förfarande för rening av förorenade vätskor |
| JP6063416B2 (ja) * | 2014-06-10 | 2017-01-18 | デクセリアルズ株式会社 | 水浄化剤、及び水浄化方法 |
| EP3600650B1 (en) * | 2017-03-29 | 2021-10-27 | Lappeenrannan-Lahden teknillinen yliopisto LUT | Method of using extracted lignocellulosic material as an adsorbent |
| WO2018236293A1 (en) * | 2017-06-20 | 2018-12-27 | Mitr Phol Sugarcane Research Center Co., Ltd. | ABSORBENT CELLULOSIC MATERIAL |
| CN109731435B (zh) * | 2019-01-17 | 2021-10-29 | 江苏省农业科学院 | 一种纤维素基甲醛吸附剂在吸附甲醛的应用 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028290A (en) * | 1975-10-23 | 1977-06-07 | Hercules Incorporated | Highly absorbent modified polysaccharides |
| US4036588A (en) * | 1976-03-09 | 1977-07-19 | Research Corporation | Method of increasing the water absorption of cellulose-containing materials |
| US4806475A (en) * | 1983-12-28 | 1989-02-21 | The United States Of America As Represented By The Secretary Of Agriculture | Alkaline peroxide treatment of agricultural byproducts |
| FR2574826B1 (fr) * | 1984-12-14 | 1987-01-09 | Du Pin Cellulose | Procede de preparation de cellulose modifiee lui conferant des proprietes absorbantes ameliorees |
| US4818598A (en) * | 1985-06-28 | 1989-04-04 | The Procter & Gamble Company | Absorbent structures |
| FR2628764B1 (fr) * | 1988-03-16 | 1990-10-12 | Du Pin Cellulose | Procede de fabrication de produits fibreux a base de cellulose modifiee presentant des proprietes absorbantes ameliorees et produits obtenus |
| US4842877A (en) * | 1988-04-05 | 1989-06-27 | Xylan, Inc. | Delignification of non-woody biomass |
-
2001
- 2001-05-16 FI FI20011034A patent/FI113375B/sv active
-
2002
- 2002-05-15 WO PCT/FI2002/000415 patent/WO2002092669A1/en not_active Application Discontinuation
- 2002-05-15 EP EP02722325A patent/EP1397419A1/en not_active Withdrawn
- 2002-05-15 CA CA002447520A patent/CA2447520A1/en not_active Abandoned
- 2002-05-15 US US10/477,809 patent/US20040231059A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP1397419A1 (en) | 2004-03-17 |
| US20040231059A1 (en) | 2004-11-25 |
| WO2002092669A8 (en) | 2003-07-24 |
| WO2002092669A1 (en) | 2002-11-21 |
| CA2447520A1 (en) | 2002-11-21 |
| FI20011034A (sv) | 2002-11-17 |
| FI20011034A0 (sv) | 2001-05-16 |
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