CA2055040A1 - Pulping - Google Patents
PulpingInfo
- Publication number
- CA2055040A1 CA2055040A1 CA 2055040 CA2055040A CA2055040A1 CA 2055040 A1 CA2055040 A1 CA 2055040A1 CA 2055040 CA2055040 CA 2055040 CA 2055040 A CA2055040 A CA 2055040A CA 2055040 A1 CA2055040 A1 CA 2055040A1
- Authority
- CA
- Canada
- Prior art keywords
- digesting
- liquor
- catalyst
- acetate
- pulping process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000004537 pulping Methods 0.000 title claims abstract description 142
- 239000003054 catalyst Substances 0.000 claims abstract description 227
- 238000000034 method Methods 0.000 claims abstract description 213
- 230000008569 process Effects 0.000 claims abstract description 208
- 229920005610 lignin Polymers 0.000 claims abstract description 124
- 239000000203 mixture Substances 0.000 claims abstract description 97
- 239000002253 acid Substances 0.000 claims abstract description 48
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 233
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 80
- 235000011054 acetic acid Nutrition 0.000 claims description 74
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 47
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims description 46
- 235000013311 vegetables Nutrition 0.000 claims description 45
- -1 alkyl acetate Chemical compound 0.000 claims description 41
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 30
- 239000002904 solvent Substances 0.000 claims description 27
- 235000011056 potassium acetate Nutrition 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 125000005233 alkylalcohol group Chemical group 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 14
- 239000001913 cellulose Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims description 12
- 235000011285 magnesium acetate Nutrition 0.000 claims description 12
- 239000011654 magnesium acetate Substances 0.000 claims description 12
- 229940069446 magnesium acetate Drugs 0.000 claims description 12
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 11
- 239000005695 Ammonium acetate Substances 0.000 claims description 11
- 235000019257 ammonium acetate Nutrition 0.000 claims description 11
- 229940043376 ammonium acetate Drugs 0.000 claims description 11
- 229920002678 cellulose Polymers 0.000 claims description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 10
- 150000001298 alcohols Chemical class 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 10
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical group S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 9
- 150000001299 aldehydes Chemical class 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- 238000005194 fractionation Methods 0.000 claims description 9
- 150000002576 ketones Chemical class 0.000 claims description 9
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims description 9
- 239000001632 sodium acetate Substances 0.000 claims description 9
- 235000017281 sodium acetate Nutrition 0.000 claims description 9
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 claims description 8
- 239000001639 calcium acetate Substances 0.000 claims description 8
- 235000011092 calcium acetate Nutrition 0.000 claims description 8
- 229960005147 calcium acetate Drugs 0.000 claims description 8
- 150000001768 cations Chemical class 0.000 claims description 8
- 239000003153 chemical reaction reagent Substances 0.000 claims description 8
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 229960004109 potassium acetate Drugs 0.000 claims description 8
- 229960004249 sodium acetate Drugs 0.000 claims description 8
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 7
- 229940022682 acetone Drugs 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 claims description 7
- 229940071257 lithium acetate Drugs 0.000 claims description 7
- 150000007524 organic acids Chemical class 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 125000005907 alkyl ester group Chemical group 0.000 claims description 6
- 125000002091 cationic group Chemical group 0.000 claims description 6
- 230000001747 exhibiting effect Effects 0.000 claims description 6
- 238000009738 saturating Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 3
- 150000001242 acetic acid derivatives Chemical class 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 229940000425 combination drug Drugs 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- 235000005985 organic acids Nutrition 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 7
- 230000003472 neutralizing effect Effects 0.000 claims 5
- 235000010980 cellulose Nutrition 0.000 claims 4
- 229960005069 calcium Drugs 0.000 claims 2
- 235000001465 calcium Nutrition 0.000 claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims 1
- 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 claims 1
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 claims 1
- 235000010210 aluminium Nutrition 0.000 claims 1
- 229940009827 aluminum acetate Drugs 0.000 claims 1
- 239000000908 ammonium hydroxide Substances 0.000 claims 1
- 229940106135 cellulose Drugs 0.000 claims 1
- 150000004679 hydroxides Chemical class 0.000 claims 1
- 235000001055 magnesium Nutrition 0.000 claims 1
- 229940091250 magnesium supplement Drugs 0.000 claims 1
- 235000007686 potassium Nutrition 0.000 claims 1
- 229960003975 potassium Drugs 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 229940083542 sodium Drugs 0.000 claims 1
- 235000015424 sodium Nutrition 0.000 claims 1
- 229960000583 acetic acid Drugs 0.000 description 67
- 239000000126 substance Substances 0.000 description 34
- 239000000306 component Substances 0.000 description 30
- 239000002023 wood Substances 0.000 description 27
- 239000000835 fiber Substances 0.000 description 18
- 239000002028 Biomass Substances 0.000 description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 13
- 229910052717 sulfur Inorganic materials 0.000 description 13
- 239000011593 sulfur Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 11
- 238000007670 refining Methods 0.000 description 11
- 241000183024 Populus tremula Species 0.000 description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- 238000007792 addition Methods 0.000 description 9
- 230000009467 reduction Effects 0.000 description 9
- 230000029087 digestion Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 239000012362 glacial acetic acid Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000007614 solvation Methods 0.000 description 5
- XOJVVFBFDXDTEG-UHFFFAOYSA-N Norphytane Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)C XOJVVFBFDXDTEG-UHFFFAOYSA-N 0.000 description 4
- 239000012042 active reagent Substances 0.000 description 4
- 238000003776 cleavage reaction Methods 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 230000007017 scission Effects 0.000 description 3
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229920001732 Lignosulfonate Polymers 0.000 description 2
- 235000005018 Pinus echinata Nutrition 0.000 description 2
- 241001236219 Pinus echinata Species 0.000 description 2
- 235000017339 Pinus palustris Nutrition 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 239000010905 bagasse Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 235000019357 lignosulphonate Nutrition 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 2
- 229910001950 potassium oxide Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 238000005773 Enders reaction Methods 0.000 description 1
- PNVJTZOFSHSLTO-UHFFFAOYSA-N Fenthion Chemical compound COP(=S)(OC)OC1=CC=C(SC)C(C)=C1 PNVJTZOFSHSLTO-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 241000555769 Pristis Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- UCTLHLZWKJIXJI-LXIBVNSESA-N [(3s,8r,9s,10r,13s,14s)-17-chloro-16-formyl-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15-decahydro-1h-cyclopenta[a]phenanthren-3-yl] acetate Chemical compound C([C@@H]12)C[C@]3(C)C(Cl)=C(C=O)C[C@H]3[C@@H]1CC=C1[C@]2(C)CC[C@H](OC(=O)C)C1 UCTLHLZWKJIXJI-LXIBVNSESA-N 0.000 description 1
- 238000010669 acid-base reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000779 depleting effect Effects 0.000 description 1
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 description 1
- RHCJOJDSMWJGMV-UHFFFAOYSA-N diazanium acetate hydroxide Chemical compound [NH4+].[NH4+].[OH-].CC([O-])=O RHCJOJDSMWJGMV-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 101150088365 intG gene Proteins 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000013031 physical testing Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
-
- 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
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
Landscapes
- Paper (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60957990A | 1990-11-06 | 1990-11-06 | |
| US609,579 | 1990-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2055040A1 true CA2055040A1 (en) | 1992-05-07 |
Family
ID=24441382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2055040 Abandoned CA2055040A1 (en) | 1990-11-06 | 1991-11-06 | Pulping |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0485150A1 (de) |
| CA (1) | CA2055040A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4228171C2 (de) * | 1992-08-25 | 1995-06-14 | Kaemmerer Projekt Agentur Gmbh | Verfahren zur Gewinnung von Zellstoffen |
| BRPI0812072A2 (pt) * | 2007-05-31 | 2014-11-25 | Lignol Innovations Ltd | Digestão anaeróbica concorrente e fermentação de matéria-prima lignocelulósica |
| US20100285550A1 (en) * | 2008-01-11 | 2010-11-11 | Novozymes A/S | Delignification of Lignocellulose-Containing Material |
| CN102459424B (zh) | 2009-05-28 | 2016-01-20 | 丽格诺创新有限公司 | 来自一年生纤维原料的天然木素衍生物 |
| EP2536780A4 (de) | 2010-02-15 | 2013-11-13 | Lignol Innovations Ltd | Kohlefaserzusammensetzungen mit ligninderivaten |
| EP2536798B1 (de) | 2010-02-15 | 2022-04-27 | Suzano Canada Inc. | Bindemittelzusammensetzungen mit ligninderivaten |
| EP2688959A4 (de) | 2011-03-24 | 2014-09-10 | Lignol Innovations Ltd | Zusammensetzungen aus einer lignozellulose-biomasse und einem organischen lösungsmittel |
| CA2962188C (en) * | 2013-10-18 | 2023-04-18 | Queensland University Of Technology | Lignin-based waterproof coating |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0211558A3 (de) * | 1985-07-26 | 1987-05-27 | Biodyne Chemicals, Inc. | Verfahren zum Aufschluss von Lignocellulosematerial |
| AT385061B (de) * | 1985-11-29 | 1988-02-10 | Neusiedler Ag | Verfahren zur gewinnung von zellstoff aus pflanzenfasermaterial |
-
1991
- 1991-11-05 EP EP91310190A patent/EP0485150A1/de not_active Withdrawn
- 1991-11-06 CA CA 2055040 patent/CA2055040A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0485150A1 (de) | 1992-05-13 |
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