CA1096559A - Traduction non-disponible - Google Patents

Traduction non-disponible

Info

Publication number: CA1096559A
Authority: CA; Canada
Prior art keywords: liquor; chips; process according; pretreating; lignocellulosic material
Prior art date: 1978-05-04
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.): Expired

Application number

CA302,633A

Other languages

English (en)

Inventor

Jonas A. I. Lindahl

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Mo och Domsjo AB

Original Assignee

Mo och Domsjo AB

Priority date (The priority date 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 date listed.)

1978-05-04

Filing date

1978-05-04

Publication date

1981-03-03

1978-05-04 Application filed by Mo och Domsjo AB filed Critical Mo och Domsjo AB

1978-05-04 Priority to CA302,633A priority Critical patent/CA1096559A/fr

1981-03-03 Application granted granted Critical

1981-03-03 Publication of CA1096559A publication Critical patent/CA1096559A/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 62
230000008569 process Effects 0.000 title claims abstract description 58
239000012978 lignocellulosic material Substances 0.000 title claims abstract description 42
229910001385 heavy metal Inorganic materials 0.000 claims abstract description 37
239000000463 material Substances 0.000 claims abstract description 35
239000000243 solution Substances 0.000 claims abstract description 35
239000000126 substance Substances 0.000 claims abstract description 34
150000002500 ions Chemical class 0.000 claims abstract description 29
239000008139 complexing agent Substances 0.000 claims abstract description 23
239000007787 solid Substances 0.000 claims abstract description 20
239000003513 alkali Substances 0.000 claims abstract description 18
230000006835 compression Effects 0.000 claims abstract description 17
238000007906 compression Methods 0.000 claims abstract description 17
239000007864 aqueous solution Substances 0.000 claims abstract description 14
238000005406 washing Methods 0.000 claims abstract description 13
239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
239000007788 liquid Substances 0.000 claims abstract description 10
239000011347 resin Substances 0.000 claims abstract description 8
229920005989 resin Polymers 0.000 claims abstract description 8
238000010438 heat treatment Methods 0.000 claims abstract description 7
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 50
239000002023 wood Substances 0.000 claims description 46
RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 22
239000007844 bleaching agent Substances 0.000 claims description 12
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 11
238000006243 chemical reaction Methods 0.000 claims description 11
238000004537 pulping Methods 0.000 claims description 10
238000000227 grinding Methods 0.000 claims description 9
229910052911 sodium silicate Inorganic materials 0.000 claims description 9
150000002978 peroxides Chemical class 0.000 claims description 8
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 5
239000004115 Sodium Silicate Substances 0.000 claims description 4
UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
230000002378 acidificating effect Effects 0.000 claims description 4
229920005610 lignin Polymers 0.000 claims description 4
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
235000019341 magnesium sulphate Nutrition 0.000 claims description 3
239000000203 mixture Substances 0.000 claims description 3
239000003265 pulping liquor Substances 0.000 claims description 3
238000007789 sealing Methods 0.000 claims description 3
229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
229910001882 dioxygen Inorganic materials 0.000 claims description 2
229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
241000218657 Picea Species 0.000 description 21
238000004061 bleaching Methods 0.000 description 20
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
230000029087 digestion Effects 0.000 description 19
238000005265 energy consumption Methods 0.000 description 16
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
238000005470 impregnation Methods 0.000 description 15
239000011572 manganese Substances 0.000 description 13
QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 11
229920001131 Pulp (paper) Polymers 0.000 description 11
229910052751 metal Inorganic materials 0.000 description 11
239000002184 metal Substances 0.000 description 11
241000196324 Embryophyta Species 0.000 description 10
239000002253 acid Substances 0.000 description 10
DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 8
238000004519 manufacturing process Methods 0.000 description 8
229910021645 metal ion Inorganic materials 0.000 description 8
238000007670 refining Methods 0.000 description 8
235000010267 sodium hydrogen sulphite Nutrition 0.000 description 8
238000004458 analytical method Methods 0.000 description 7
229920006395 saturated elastomer Polymers 0.000 description 7
239000002699 waste material Substances 0.000 description 7
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
150000007513 acids Chemical class 0.000 description 6
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
229920002678 cellulose Polymers 0.000 description 6
239000001913 cellulose Substances 0.000 description 6
239000002738 chelating agent Substances 0.000 description 6
229910052760 oxygen Inorganic materials 0.000 description 6
239000001301 oxygen Substances 0.000 description 6
235000010269 sulphur dioxide Nutrition 0.000 description 6
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
239000000835 fiber Substances 0.000 description 5
150000002739 metals Chemical class 0.000 description 5
235000019795 sodium metasilicate Nutrition 0.000 description 5
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 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 4
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
-1 aLkali metal salt Chemical class 0.000 description 4
230000015572 biosynthetic process Effects 0.000 description 4
239000007795 chemical reaction product Substances 0.000 description 4
238000004090 dissolution Methods 0.000 description 4
230000000694 effects Effects 0.000 description 4
229910052748 manganese Inorganic materials 0.000 description 4
238000003892 spreading Methods 0.000 description 4
229940124024 weight reducing agent Drugs 0.000 description 4
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 3
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
239000002250 absorbent Substances 0.000 description 3
230000002745 absorbent Effects 0.000 description 3
229910052783 alkali metal Inorganic materials 0.000 description 3
239000003795 chemical substances by application Substances 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
238000010411 cooking Methods 0.000 description 3
229910052802 copper Inorganic materials 0.000 description 3
239000010949 copper Substances 0.000 description 3
238000001035 drying Methods 0.000 description 3
229910052742 iron Inorganic materials 0.000 description 3
229960003330 pentetic acid Drugs 0.000 description 3
239000000047 product Substances 0.000 description 3
150000003839 salts Chemical class 0.000 description 3
239000011734 sodium Substances 0.000 description 3
229910052708 sodium Inorganic materials 0.000 description 3
239000004291 sulphur dioxide Substances 0.000 description 3
239000003784 tall oil Substances 0.000 description 3
239000008399 tap water Substances 0.000 description 3
235000020679 tap water Nutrition 0.000 description 3
HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
235000011054 acetic acid Nutrition 0.000 description 2
239000010941 cobalt Substances 0.000 description 2
229910017052 cobalt Inorganic materials 0.000 description 2
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
230000000536 complexating effect Effects 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000000354 decomposition reaction Methods 0.000 description 2
238000000605 extraction Methods 0.000 description 2
239000007789 gas Substances 0.000 description 2
239000011121 hardwood Substances 0.000 description 2
230000007062 hydrolysis Effects 0.000 description 2
238000006460 hydrolysis reaction Methods 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
239000012535 impurity Substances 0.000 description 2
JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
239000007791 liquid phase Substances 0.000 description 2
239000011777 magnesium Substances 0.000 description 2
229910052749 magnesium Inorganic materials 0.000 description 2
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 2
229910052757 nitrogen Inorganic materials 0.000 description 2
238000002203 pretreatment Methods 0.000 description 2
230000002250 progressing effect Effects 0.000 description 2
NQLVQOSNDJXLKG-UHFFFAOYSA-N prosulfocarb Chemical compound CCCN(CCC)C(=O)SCC1=CC=CC=C1 NQLVQOSNDJXLKG-UHFFFAOYSA-N 0.000 description 2
230000001603 reducing effect Effects 0.000 description 2
239000011122 softwood Substances 0.000 description 2
LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 description 1
AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
241000208140 Acer Species 0.000 description 1
240000004731 Acer pseudoplatanus Species 0.000 description 1
235000002754 Acer pseudoplatanus Nutrition 0.000 description 1
235000018185 Betula X alpestris Nutrition 0.000 description 1
235000018212 Betula X uliginosa Nutrition 0.000 description 1
241000219495 Betulaceae Species 0.000 description 1
BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
241000167854 Bourreria succulenta Species 0.000 description 1
101100422770 Caenorhabditis elegans sup-1 gene Proteins 0.000 description 1
UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
241000723418 Carya Species 0.000 description 1
241001070941 Castanea Species 0.000 description 1
235000014036 Castanea Nutrition 0.000 description 1
241000218645 Cedrus Species 0.000 description 1
241000040710 Chela Species 0.000 description 1
RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-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
240000000731 Fagus sylvatica Species 0.000 description 1
235000010099 Fagus sylvatica Nutrition 0.000 description 1
229920002581 Glucomannan Polymers 0.000 description 1
AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
241000721662 Juniperus Species 0.000 description 1
241001397173 Kali <angiosperm> Species 0.000 description 1
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
241001307210 Pene Species 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
235000006485 Platanus occidentalis Nutrition 0.000 description 1
229920000388 Polyphosphate Polymers 0.000 description 1
241000219000 Populus Species 0.000 description 1
241000183024 Populus tremula Species 0.000 description 1
241000219492 Quercus Species 0.000 description 1
244000180577 Sambucus australis Species 0.000 description 1
235000018734 Sambucus australis Nutrition 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
208000024780 Urticaria Diseases 0.000 description 1
239000003929 acidic solution 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
150000001340 alkali metals Chemical class 0.000 description 1
239000012670 alkaline solution Substances 0.000 description 1
229910000147 aluminium phosphate Inorganic materials 0.000 description 1
238000002419 base digestion Methods 0.000 description 1
UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 1
229910010277 boron hydride Inorganic materials 0.000 description 1
150000001720 carbohydrates Chemical class 0.000 description 1
229910002091 carbon monoxide Inorganic materials 0.000 description 1
230000015556 catabolic process Effects 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
239000013522 chelant Substances 0.000 description 1
150000004697 chelate complex Chemical class 0.000 description 1
108010088172 chelatin Proteins 0.000 description 1
238000004182 chemical digestion Methods 0.000 description 1
235000019693 cherries Nutrition 0.000 description 1
235000015165 citric acid Nutrition 0.000 description 1
239000011248 coating agent Substances 0.000 description 1
238000000576 coating method Methods 0.000 description 1
PYRZPBDTPRQYKG-UHFFFAOYSA-N cyclopentene-1-carboxylic acid Chemical compound OC(=O)C1=CCCC1 PYRZPBDTPRQYKG-UHFFFAOYSA-N 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000006731 degradation reaction Methods 0.000 description 1
239000008367 deionised water Substances 0.000 description 1
229910021641 deionized water Inorganic materials 0.000 description 1
230000002939 deleterious effect Effects 0.000 description 1
150000004985 diamines Chemical class 0.000 description 1
229910001873 dinitrogen Inorganic materials 0.000 description 1
229960001484 edetic acid Drugs 0.000 description 1
235000013312 flour Nutrition 0.000 description 1
235000019253 formic acid Nutrition 0.000 description 1
ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
229940046240 glucomannan Drugs 0.000 description 1
239000000174 gluconic acid Substances 0.000 description 1
235000012208 gluconic acid Nutrition 0.000 description 1
239000008187 granular material Substances 0.000 description 1
235000011167 hydrochloric acid Nutrition 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
150000004679 hydroxides Chemical class 0.000 description 1
125000002768 hydroxyalkyl group Chemical group 0.000 description 1
SGOVJIDEXZEOTB-NJGYIYPDSA-N isosaccharinic acid Chemical compound OC[C@@H](O)C[C@](O)(CO)C(O)=O SGOVJIDEXZEOTB-NJGYIYPDSA-N 0.000 description 1
239000004310 lactic acid Substances 0.000 description 1
235000014655 lactic acid Nutrition 0.000 description 1
235000015250 liver sausages Nutrition 0.000 description 1
159000000003 magnesium salts Chemical class 0.000 description 1
150000002696 manganese Chemical class 0.000 description 1
150000002736 metal compounds Chemical class 0.000 description 1
229910000000 metal hydroxide Inorganic materials 0.000 description 1
150000004692 metal hydroxides Chemical class 0.000 description 1
MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
150000007522 mineralic acids Chemical class 0.000 description 1
APVPOHHVBBYQAV-UHFFFAOYSA-N n-(4-aminophenyl)sulfonyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NS(=O)(=O)C1=CC=C(N)C=C1 APVPOHHVBBYQAV-UHFFFAOYSA-N 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
229910017604 nitric acid Inorganic materials 0.000 description 1
QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical class [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
150000007524 organic acids Chemical class 0.000 description 1
235000006408 oxalic acid Nutrition 0.000 description 1
239000012071 phase Substances 0.000 description 1
150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
229920000768 polyamine Polymers 0.000 description 1
239000001205 polyphosphate Substances 0.000 description 1
235000011176 polyphosphates Nutrition 0.000 description 1
230000008092 positive effect Effects 0.000 description 1
125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
239000002994 raw material Substances 0.000 description 1
238000011084 recovery Methods 0.000 description 1
230000001105 regulatory effect Effects 0.000 description 1
238000012216 screening Methods 0.000 description 1
FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
239000000176 sodium gluconate Substances 0.000 description 1
235000012207 sodium gluconate Nutrition 0.000 description 1
229940005574 sodium gluconate Drugs 0.000 description 1
GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
229910001415 sodium ion Inorganic materials 0.000 description 1
235000019832 sodium triphosphate Nutrition 0.000 description 1
FMYOMWCQJXWGEN-UHFFFAOYSA-M sodium;2,3,4,5,6,7-hexahydroxyheptanoate Chemical compound [Na+].OCC(O)C(O)C(O)C(O)C(O)C([O-])=O FMYOMWCQJXWGEN-UHFFFAOYSA-M 0.000 description 1
230000006641 stabilisation Effects 0.000 description 1
238000011105 stabilization Methods 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
239000001117 sulphuric acid Substances 0.000 description 1
235000011149 sulphuric acid Nutrition 0.000 description 1
ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
229960004418 trolamine Drugs 0.000 description 1
PENRVBJTRIYHOA-UHFFFAOYSA-L zinc dithionite Chemical compound [Zn+2].[O-]S(=O)S([O-])=O PENRVBJTRIYHOA-UHFFFAOYSA-L 0.000 description 1

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CA302,633A 1978-05-04 1978-05-04 Traduction non-disponible Expired CA1096559A (fr)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4798651A (en) *	1987-03-24	1989-01-17	Stake Technology Ltd.	Process for preparing pulp for paper making
CN107287663A (zh) *	2017-07-24	2017-10-24	浙江农林大学暨阳学院	粗竹纤维清洗干燥装置
CN110257453A (zh) *	2019-05-28	2019-09-20	中国林业科学研究院林产化学工业研究所	一种提高纤维原料生物酶解转化率制备可发酵糖的预处理方法
WO2024133425A1 (fr) *	2022-12-21	2024-06-27	Billerud Aktiebolag (Publ)	Imprégnation en deux étapes dans la production de ctmp à partir de bois d'érable
WO2024133442A1 (fr) *	2022-12-21	2024-06-27	Billerud Aktiebolag (Publ)	Pctm-ht d'érable
CN119100390A (zh) *	2024-10-12	2024-12-10	扎赉诺尔煤业有限责任公司	一种利用轻木与褐煤制备SiC纤维的方法

1978
- 1978-05-04 CA CA302,633A patent/CA1096559A/fr not_active Expired

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4798651A (en) *	1987-03-24	1989-01-17	Stake Technology Ltd.	Process for preparing pulp for paper making
CN107287663A (zh) *	2017-07-24	2017-10-24	浙江农林大学暨阳学院	粗竹纤维清洗干燥装置
CN110257453A (zh) *	2019-05-28	2019-09-20	中国林业科学研究院林产化学工业研究所	一种提高纤维原料生物酶解转化率制备可发酵糖的预处理方法
WO2024133425A1 (fr) *	2022-12-21	2024-06-27	Billerud Aktiebolag (Publ)	Imprégnation en deux étapes dans la production de ctmp à partir de bois d'érable
WO2024133442A1 (fr) *	2022-12-21	2024-06-27	Billerud Aktiebolag (Publ)	Pctm-ht d'érable
CN119100390A (zh) *	2024-10-12	2024-12-10	扎赉诺尔煤业有限责任公司	一种利用轻木与褐煤制备SiC纤维的方法

Legal Events

Date	Code	Title	Description
1998-03-03	MKEX	Expiry

Publication	Publication Date	Title
US4599138A (en)	1986-07-08	Process for pretreating particulate lignocellulosic material to remove heavy metals
US5002635A (en)	1991-03-26	Method for producing pulp using pre-treatment with stabilizers and refining
US4294653A (en)	1981-10-13	Process for manufacturing chemimechanical cellulose pulp in a high yield within the range from 65 to 95%
US6743332B2 (en)	2004-06-01	High temperature peroxide bleaching of mechanical pulps
US4160693A (en)	1979-07-10	Process for the bleaching of cellulose pulp
CA1272563A (fr)	1990-08-14	Methode de fabrication de pate de fibres blanchie de type chimiomecanique et semi-chemique par un procede d'impregnation a une etape
CA1275760C (fr)	1990-11-06	Methode de fabrication de pate de fibres blanchie chimiomecanique et semi-chimique par un procede d'impregnation a deux etapes
US4849053A (en)	1989-07-18	Method for producing pulp using pre-treatment with stabilizers and defibration
EP0494519A1 (fr)	1992-07-15	Procédé de lessivage à haut rendement
CA1096559A (fr)	1981-03-03	Traduction non-disponible
AU692922B2 (en)	1998-06-18	Method and apparatus for the continuous production of cellulosic pulp
US6752904B2 (en)	2004-06-22	Process for removal of lignin from lignocellulosic material
CA2365017C (fr)	2009-07-14	Procede de fabrication de pulpe mecanique et chimiothermomecanique blanchie
EP0239583B2 (fr)	1994-01-12	Procede de pre-traitement d'une pulpe avec des stabilisateurs et du peroxyde avant le raffinage mecanique
US3520773A (en)	1970-07-14	Alkaline pulping processes with chemical pretreatment
JP4275936B2 (ja)	2009-06-10	機械パルプの製造方法
US4534397A (en)	1985-08-13	Method for producing chemimechanical high yield pulp using an oxygen alkali treatment followed by an oxygen mechanical defibration
WO2001059202A2 (fr)	2001-08-16	Procede de reduction en pate
SE454185B (sv)	1988-04-11	Forbehandling av lignocellulosamaterial med oxygengas vid framstellning av kemimekanisk massa
Naithani et al.	0	Alkaline Peroxide Mechanical Pulping of Populus Deltoides
EP1130155A1 (fr)	2001-09-05	Procédé de délignification

CA1096559A - Traduction non-disponible - Google Patents

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ID=4111391

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Cited By (6)

Cited By (6)

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