BRPI0810574B1 - processos para a produção de partículas de madeira branqueada, e para a produção de materiais baseados em madeira clara a branca - Google Patents
processos para a produção de partículas de madeira branqueada, e para a produção de materiais baseados em madeira clara a branca Download PDFInfo
- Publication number
- BRPI0810574B1 BRPI0810574B1 BRPI0810574A BRPI0810574A BRPI0810574B1 BR PI0810574 B1 BRPI0810574 B1 BR PI0810574B1 BR PI0810574 A BRPI0810574 A BR PI0810574A BR PI0810574 A BRPI0810574 A BR PI0810574A BR PI0810574 B1 BRPI0810574 B1 BR PI0810574B1
- Authority
- BR
- Brazil
- Prior art keywords
- wood
- production
- weight
- wood particles
- white
- Prior art date
Links
- 239000002023 wood Substances 0.000 title claims description 107
- 239000002245 particle Substances 0.000 title claims description 71
- 238000004519 manufacturing process Methods 0.000 title claims description 49
- 238000000034 method Methods 0.000 title claims description 48
- 239000000463 material Substances 0.000 title claims description 40
- 235000009414 Elaeocarpus kirtonii Nutrition 0.000 title claims description 17
- 235000013584 Tabebuia pallida Nutrition 0.000 title claims description 17
- 241000199223 Elaeocarpus kirtonii Species 0.000 title claims 6
- 238000004061 bleaching Methods 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 33
- 238000007664 blowing Methods 0.000 claims description 27
- 239000007844 bleaching agent Substances 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 19
- 229920002678 cellulose Polymers 0.000 claims description 17
- 239000001913 cellulose Substances 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 10
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical class OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 claims description 9
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 9
- 239000012463 white pigment Substances 0.000 claims description 9
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 5
- 150000001447 alkali salts Chemical class 0.000 claims description 5
- 150000003455 sulfinic acids Chemical class 0.000 claims description 4
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical class [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 4
- 241000609240 Ambelania acida Species 0.000 claims description 2
- 241000771208 Buchanania arborescens Species 0.000 claims description 2
- 239000010905 bagasse Substances 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- 238000003801 milling Methods 0.000 claims 1
- 239000003292 glue Substances 0.000 description 41
- 239000000835 fiber Substances 0.000 description 39
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 18
- 229920002522 Wood fibre Polymers 0.000 description 16
- 239000002025 wood fiber Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 244000236151 Tabebuia pallida Species 0.000 description 11
- 235000010215 titanium dioxide Nutrition 0.000 description 11
- 239000004408 titanium dioxide Substances 0.000 description 10
- 241000218657 Picea Species 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 238000000227 grinding Methods 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 5
- -1 dithionites Chemical class 0.000 description 5
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 5
- BUUPQKDIAURBJP-UHFFFAOYSA-N sulfinic acid Chemical compound OS=O BUUPQKDIAURBJP-UHFFFAOYSA-N 0.000 description 5
- 230000002087 whitening effect Effects 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 239000011094 fiberboard Substances 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 240000000731 Fagus sylvatica Species 0.000 description 3
- 235000010099 Fagus sylvatica Nutrition 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 3
- 235000010265 sodium sulphite Nutrition 0.000 description 3
- 235000019832 sodium triphosphate Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 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 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- SBGKURINHGJRFN-UHFFFAOYSA-N hydroxymethanesulfinic acid Chemical compound OCS(O)=O SBGKURINHGJRFN-UHFFFAOYSA-N 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- BCMCBBGGLRIHSE-UHFFFAOYSA-N 1,3-benzoxazole Chemical compound C1=CC=C2OC=NC2=C1 BCMCBBGGLRIHSE-UHFFFAOYSA-N 0.000 description 1
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- YGUMVDWOQQJBGA-VAWYXSNFSA-N 5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-[(e)-2-[4-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound C=1C=C(\C=C\C=2C(=CC(NC=3N=C(N=C(NC=4C=CC=CC=4)N=3)N3CCOCC3)=CC=2)S(O)(=O)=O)C(S(=O)(=O)O)=CC=1NC(N=C(N=1)N2CCOCC2)=NC=1NC1=CC=CC=C1 YGUMVDWOQQJBGA-VAWYXSNFSA-N 0.000 description 1
- 241001133760 Acoelorraphe Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241001522317 Carduelis carduelis Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N benzo-alpha-pyrone Natural products C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 150000004775 coumarins Chemical class 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000004966 inorganic peroxy acids Chemical class 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical class [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 235000011160 magnesium carbonates Nutrition 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004967 organic peroxy acids Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- HEZHYQDYRPUXNJ-UHFFFAOYSA-L potassium dithionite Chemical compound [K+].[K+].[O-]S(=O)S([O-])=O HEZHYQDYRPUXNJ-UHFFFAOYSA-L 0.000 description 1
- 235000019828 potassium polyphosphate Nutrition 0.000 description 1
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical class [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 description 1
- 235000019252 potassium sulphite Nutrition 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009895 reductive bleaching Methods 0.000 description 1
- 239000006254 rheological additive Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 235000012217 sodium aluminium silicate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000001629 stilbenes Chemical class 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- CSABAZBYIWDIDE-UHFFFAOYSA-N sulfino hydrogen sulfite Chemical class OS(=O)OS(O)=O CSABAZBYIWDIDE-UHFFFAOYSA-N 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- HSYFJDYGOJKZCL-UHFFFAOYSA-L zinc;sulfite Chemical compound [Zn+2].[O-]S([O-])=O HSYFJDYGOJKZCL-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
-
- 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
-
- 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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
-
- 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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
- D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/249925—Fiber-containing wood product [e.g., hardboard, lumber, or wood board, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Paper (AREA)
- Disintegrating Or Milling (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07106804 | 2007-04-24 | ||
| PCT/EP2008/054879 WO2008129048A1 (de) | 2007-04-24 | 2008-04-23 | Verfahren zur herstellung von gebleichten holzpartikeln und hellen bis weissen holzwerkstoffen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BRPI0810574A2 BRPI0810574A2 (pt) | 2014-10-29 |
| BRPI0810574B1 true BRPI0810574B1 (pt) | 2018-10-23 |
Family
ID=39564671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0810574A BRPI0810574B1 (pt) | 2007-04-24 | 2008-04-23 | processos para a produção de partículas de madeira branqueada, e para a produção de materiais baseados em madeira clara a branca |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8784607B2 (enExample) |
| EP (1) | EP2142348B1 (enExample) |
| JP (1) | JP5371955B2 (enExample) |
| CN (1) | CN101678557B (enExample) |
| BR (1) | BRPI0810574B1 (enExample) |
| CL (1) | CL2008001199A1 (enExample) |
| ES (1) | ES2447870T3 (enExample) |
| PL (1) | PL2142348T3 (enExample) |
| WO (1) | WO2008129048A1 (enExample) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007038041A1 (de) † | 2007-08-10 | 2009-02-12 | Kronotec Ag | Verfahren zur Vermeidung der Emission von Aldehyden und flüchtigen organischen Verbindungen aus Holzwerkstoffen |
| DE102007055415C5 (de) * | 2007-11-19 | 2018-11-29 | SWISS KRONO Tec AG | Verfahren zur Verminderung der Emission von gesättigten und ungesättigten Aldehyden aus Holzwerkstoffen |
| DE102008063020A1 (de) | 2008-12-23 | 2010-06-24 | Basf Se | Overlay mit Effekten |
| KR101207845B1 (ko) * | 2010-11-05 | 2012-12-04 | (주)지바이오텍 | 표백목분, 표백목분의 제조방법, 그것을 이용한 종이 및 그 제조방법 |
| KR101178727B1 (ko) * | 2011-12-01 | 2012-08-31 | 한솔제지주식회사 | 표백 목분을 함유하는 종이 및 이의 제조 방법 |
| HRP20250662T1 (hr) | 2013-06-17 | 2025-08-01 | Välinge Innovation AB | Metoda proizvodnje ploče na bazi drva i takva ploča na bazi drva |
| EP2924166A1 (de) * | 2014-03-25 | 2015-09-30 | Basf Se | Verfahren zur Herstellung von gebleichtem Holzfaserstoff |
| ES2747550T3 (es) * | 2017-01-31 | 2020-03-10 | SWISS KRONO Tec AG | Procedimiento para producir un material de placa de OSB |
| CN107471373B (zh) * | 2017-08-14 | 2019-09-03 | 高升 | 一种纤维板生产的在线增白技术 |
| CN110951274A (zh) * | 2019-12-24 | 2020-04-03 | 黑龙江幸福人生态农业开发股份有限公司 | 一种使用甘蔗生物质粉为原料的生物基复合材料制备方法 |
| JP7757696B2 (ja) * | 2021-10-08 | 2025-10-22 | セイコーエプソン株式会社 | 結合材および成形体の製造方法 |
| DE102022134621A1 (de) | 2022-12-22 | 2024-06-27 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Verfahren zum Herstellen von Partikeln für die Produktion einer Werkstoffplatte sowie Werkstoffplatte |
| WO2025016539A1 (en) | 2023-07-18 | 2025-01-23 | Basf Se | Process for producing mechanical wood pulp |
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| US3467574A (en) * | 1966-06-14 | 1969-09-16 | Crown Zellerbach Corp | Refiner bleaching of high yield pulps |
| DE1546239A1 (de) * | 1966-12-31 | 1969-11-27 | Basf Ag | Verfahren zum Bleichen |
| US3669895A (en) * | 1970-08-31 | 1972-06-13 | Virginia Chemicals Inc | Sodium hydrosulfite stabilization composition |
| JPS55121905A (en) * | 1979-03-13 | 1980-09-19 | Mitsubishi Gas Chem Co Inc | Sodium hydrosulfite composition |
| JPS5950719B2 (ja) * | 1982-02-25 | 1984-12-10 | 株式会社 柏化学工業 | 家屋家具類の漂白剤 |
| JPS61148001A (ja) * | 1984-12-24 | 1986-07-05 | 神東塗料株式会社 | 木材防虫剤 |
| JPS6354205A (ja) * | 1986-08-26 | 1988-03-08 | 松下電工株式会社 | 木質材料の脱色法 |
| GB2215350B (en) * | 1988-03-16 | 1992-05-20 | Thiokol Morton Inc | Process for bleaching mechanical wood pulp |
| FR2634233B1 (fr) * | 1988-07-12 | 1995-04-14 | Atochem | Procede de fabrication de pates chimicothermomecaniques blanchies |
| US5298118A (en) * | 1988-07-12 | 1994-03-29 | Atochem | Preparation of bleached chemithermomechanical pulp |
| CA2111261A1 (en) * | 1992-12-14 | 1994-06-15 | Jeffrey Nye | Elimination of sulfur dioxide formation in refiner bleaching |
| DE19743759A1 (de) * | 1997-10-02 | 1999-04-08 | Brueggemann L Kg | Sulfinsäurederivate und deren Herstellung und Verwendung |
| JP3929151B2 (ja) * | 1997-12-17 | 2007-06-13 | 朝日ウッドテック株式会社 | 溝付き化粧板の製造方法 |
| DE10247239A1 (de) | 2002-10-10 | 2004-04-22 | Basf Ag | Verwendung von pigment- und farbstoffenthaltenden Zubereitungen zur dekorativen Einfärbung von Holzwerkstoffen |
| JP2004314555A (ja) * | 2003-04-21 | 2004-11-11 | Matsushita Electric Works Ltd | 木質系繊維板の漂白方法 |
| DE102004050278A1 (de) | 2004-10-14 | 2006-04-27 | Basf Ag | Helle bis weiße Holzwerkstoffplatten |
| WO2007000418A1 (de) * | 2005-06-29 | 2007-01-04 | Basf Aktiengesellschaft | Hellfarbige holzwerkstoffplatten |
-
2008
- 2008-04-23 CN CN200880017258.5A patent/CN101678557B/zh not_active Expired - Fee Related
- 2008-04-23 PL PL08749657T patent/PL2142348T3/pl unknown
- 2008-04-23 JP JP2010504667A patent/JP5371955B2/ja not_active Expired - Fee Related
- 2008-04-23 WO PCT/EP2008/054879 patent/WO2008129048A1/de not_active Ceased
- 2008-04-23 EP EP20080749657 patent/EP2142348B1/de not_active Not-in-force
- 2008-04-23 ES ES08749657T patent/ES2447870T3/es active Active
- 2008-04-23 BR BRPI0810574A patent/BRPI0810574B1/pt not_active IP Right Cessation
- 2008-04-23 US US12/597,402 patent/US8784607B2/en not_active Expired - Fee Related
- 2008-04-24 CL CL2008001199A patent/CL2008001199A1/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN101678557B (zh) | 2014-07-02 |
| JP5371955B2 (ja) | 2013-12-18 |
| JP2010524738A (ja) | 2010-07-22 |
| PL2142348T3 (pl) | 2014-05-30 |
| EP2142348B1 (de) | 2013-12-25 |
| BRPI0810574A2 (pt) | 2014-10-29 |
| CL2008001199A1 (es) | 2010-01-11 |
| CN101678557A (zh) | 2010-03-24 |
| ES2447870T3 (es) | 2014-03-13 |
| EP2142348A1 (de) | 2010-01-13 |
| US20100132898A1 (en) | 2010-06-03 |
| WO2008129048A1 (de) | 2008-10-30 |
| US8784607B2 (en) | 2014-07-22 |
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