CA1287705C - Preparation de la pate a papier - Google Patents

Preparation de la pate a papier

Info

Publication number: CA1287705C
Authority: CA; Canada
Prior art keywords: pulp; cooking; sodium; hydrogen peroxide; chips
Prior art date: 1987-07-22
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

CA 542643

Other languages

English (en)

Inventor

Bohuslav V. Prof. Kokta

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.)

Sunopta Inc

Original Assignee

Stake Technology Ltd

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.)

1987-07-22

Filing date

1987-07-22

Publication date

1991-08-20

1987-07-22 Application filed by Stake Technology Ltd filed Critical Stake Technology Ltd

1987-07-22 Priority to CA 542643 priority Critical patent/CA1287705C/fr

1991-08-20 Application granted granted Critical

1991-08-20 Publication of CA1287705C publication Critical patent/CA1287705C/fr

Status Expired legal-status Critical Current

Links

238000004519 manufacturing process Methods 0.000 title abstract description 4
238000000034 method Methods 0.000 claims abstract description 64
238000010411 cooking Methods 0.000 claims abstract description 47
239000012634 fragment Substances 0.000 claims abstract description 34
239000003795 chemical substances by application Substances 0.000 claims abstract description 27
239000003963 antioxidant agent Substances 0.000 claims abstract description 20
239000002023 wood Substances 0.000 claims abstract description 15
230000003078 antioxidant effect Effects 0.000 claims abstract description 13
229920006395 saturated elastomer Polymers 0.000 claims abstract description 9
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 56
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 44
GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical group [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 20
230000008961 swelling Effects 0.000 claims description 13
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
235000010265 sodium sulphite Nutrition 0.000 claims description 11
238000004061 bleaching Methods 0.000 claims description 9
239000000835 fiber Substances 0.000 claims description 9
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 8
RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 8
238000007670 refining Methods 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
229910052911 sodium silicate Inorganic materials 0.000 claims description 6
239000004115 Sodium Silicate Substances 0.000 claims description 5
239000008139 complexing agent Substances 0.000 claims description 5
239000011121 hardwood Substances 0.000 claims description 5
238000010525 oxidative degradation reaction Methods 0.000 claims description 5
229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 5
229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
239000011122 softwood Substances 0.000 claims description 5
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
FMQNKVGDYIXYDI-UHFFFAOYSA-N [Na].C=C.C=C Chemical group [Na].C=C.C=C FMQNKVGDYIXYDI-UHFFFAOYSA-N 0.000 claims description 4
238000005903 acid hydrolysis reaction Methods 0.000 claims description 4
239000000908 ammonium hydroxide Substances 0.000 claims description 4
JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 claims description 4
235000017557 sodium bicarbonate Nutrition 0.000 claims description 4
239000004291 sulphur dioxide Substances 0.000 claims description 4
235000010269 sulphur dioxide Nutrition 0.000 claims description 4
229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
235000019341 magnesium sulphate Nutrition 0.000 claims description 3
235000019832 sodium triphosphate Nutrition 0.000 claims description 3
239000004285 Potassium sulphite Substances 0.000 claims description 2
229910052700 potassium Inorganic materials 0.000 claims description 2
BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 claims description 2
235000019252 potassium sulphite Nutrition 0.000 claims description 2
101100309718 Arabidopsis thaliana SD25 gene Proteins 0.000 claims 23
YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 claims 6
238000005406 washing Methods 0.000 claims 6
KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims 2
QTONSPKDOKVNBJ-UHFFFAOYSA-N acetic acid;n'-(2-aminoethyl)ethane-1,2-diamine Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.NCCNCCN QTONSPKDOKVNBJ-UHFFFAOYSA-N 0.000 claims 2
229960001484 edetic acid Drugs 0.000 claims 2
101100309719 Arabidopsis thaliana SD31 gene Proteins 0.000 claims 1
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
239000011591 potassium Substances 0.000 claims 1
238000005470 impregnation Methods 0.000 abstract description 14
239000000126 substance Substances 0.000 abstract description 10
230000003647 oxidation Effects 0.000 abstract description 6
238000007254 oxidation reaction Methods 0.000 abstract description 6
239000002360 explosive Substances 0.000 description 14
239000000243 solution Substances 0.000 description 13
238000004880 explosion Methods 0.000 description 12
235000006708 antioxidants Nutrition 0.000 description 11
241000183024 Populus tremula Species 0.000 description 4
230000008901 benefit Effects 0.000 description 4
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
239000002253 acid Substances 0.000 description 3
230000006837 decompression Effects 0.000 description 3
230000035515 penetration Effects 0.000 description 3
241000609240 Ambelania acida Species 0.000 description 2
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
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
241000208202 Linaceae Species 0.000 description 2
235000004431 Linum usitatissimum Nutrition 0.000 description 2
TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
240000009002 Picea mariana Species 0.000 description 2
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
150000007513 acids Chemical class 0.000 description 2
239000010905 bagasse Substances 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
238000011010 flushing procedure Methods 0.000 description 2
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 2
JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
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
241001334972 Abies recurvata Species 0.000 description 1
102100022704 Amyloid-beta precursor protein Human genes 0.000 description 1
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 1
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
239000005977 Ethylene Substances 0.000 description 1
101000823051 Homo sapiens Amyloid-beta precursor protein Proteins 0.000 description 1
241000218652 Larix Species 0.000 description 1
235000005590 Larix decidua Nutrition 0.000 description 1
241001163743 Perlodes Species 0.000 description 1
241000218657 Picea Species 0.000 description 1
235000017997 Picea mariana var. mariana Nutrition 0.000 description 1
235000018000 Picea mariana var. semiprostrata Nutrition 0.000 description 1
235000008565 Pinus banksiana Nutrition 0.000 description 1
241000218680 Pinus banksiana Species 0.000 description 1
241000428533 Rhis Species 0.000 description 1
UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
238000007792 addition Methods 0.000 description 1
239000000654 additive Substances 0.000 description 1
DZHSAHHDTRWUTF-SIQRNXPUSA-N amyloid-beta polypeptide 42 Chemical compound C([C@@H](C(=O)N[C@@H](C)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@H](C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)NCC(=O)N[C@@H](C)C(=O)N[C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)NCC(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C)C(O)=O)[C@@H](C)CC)C(C)C)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CC=1N=CNC=1)NC(=O)[C@H](CC=1N=CNC=1)NC(=O)[C@@H](NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)CNC(=O)[C@H](CO)NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC=1N=CNC=1)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](C)NC(=O)[C@@H](N)CC(O)=O)C(C)C)C(C)C)C1=CC=CC=C1 DZHSAHHDTRWUTF-SIQRNXPUSA-N 0.000 description 1
239000007864 aqueous solution Substances 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
ATSGLBOJGVTHHC-UHFFFAOYSA-N bis(ethane-1,2-diamine)copper(2+) Chemical compound [Cu+2].NCCN.NCCN ATSGLBOJGVTHHC-UHFFFAOYSA-N 0.000 description 1
239000000872 buffer Substances 0.000 description 1
JLCRXCPXQLBSEM-UHFFFAOYSA-N calcium diisocyanate Chemical compound [Ca++].[N-]=C=O.[N-]=C=O JLCRXCPXQLBSEM-UHFFFAOYSA-N 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
230000006835 compression Effects 0.000 description 1
238000007906 compression Methods 0.000 description 1
238000001816 cooling Methods 0.000 description 1
238000000151 deposition Methods 0.000 description 1
150000004985 diamines Chemical class 0.000 description 1
KDSGPAZGWJOGTA-UHFFFAOYSA-M dibenzyl(dimethyl)azanium;hydroxide Chemical compound [OH-].C=1C=CC=CC=1C[N+](C)(C)CC1=CC=CC=C1 KDSGPAZGWJOGTA-UHFFFAOYSA-M 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
235000019253 formic acid Nutrition 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
150000004680 hydrogen peroxides Chemical class 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
238000009533 lab test Methods 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
229910001629 magnesium chloride Inorganic materials 0.000 description 1
235000011147 magnesium chloride Nutrition 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
230000000149 penetrating effect Effects 0.000 description 1
150000002978 peroxides Chemical class 0.000 description 1
230000000704 physical effect Effects 0.000 description 1
239000004033 plastic Substances 0.000 description 1
230000008092 positive effect Effects 0.000 description 1
230000000750 progressive effect Effects 0.000 description 1
239000011734 sodium Substances 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
239000011780 sodium chloride Substances 0.000 description 1
235000002639 sodium chloride Nutrition 0.000 description 1
HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
239000004296 sodium metabisulphite Substances 0.000 description 1
235000010262 sodium metabisulphite Nutrition 0.000 description 1
235000019795 sodium metasilicate Nutrition 0.000 description 1
239000007858 starting material Substances 0.000 description 1
229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
239000011592 zinc chloride Substances 0.000 description 1
235000005074 zinc chloride Nutrition 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
- 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
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

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)
Paper (AREA)

CA 542643 1987-07-22 1987-07-22 Preparation de la pate a papier Expired CA1287705C (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA 542643 CA1287705C (fr)	1987-07-22	1987-07-22	Preparation de la pate a papier

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA 542643 CA1287705C (fr)	1987-07-22	1987-07-22	Preparation de la pate a papier

Publications (1)

Publication Number	Publication Date
CA1287705C true CA1287705C (fr)	1991-08-20

Family

ID=4136115

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 542643 Expired CA1287705C (fr)	1987-07-22	1987-07-22	Preparation de la pate a papier

Country Status (1)

Country	Link
CA (1)	CA1287705C (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8449680B2 (en)	2008-07-24	2013-05-28	Mascoma Canada Inc.	Method and apparatus for treating a cellulosic feedstock
US8545633B2 (en)	2009-08-24	2013-10-01	Abengoa Bioenergy New Technologies, Inc.	Method for producing ethanol and co-products from cellulosic biomass
US8778084B2 (en)	2008-07-24	2014-07-15	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for treating a cellulosic feedstock
US8900370B2 (en)	2008-07-24	2014-12-02	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US8911557B2 (en)	2008-07-24	2014-12-16	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US8915644B2 (en)	2008-07-24	2014-12-23	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US9004742B2 (en)	2009-01-23	2015-04-14	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US9010522B2 (en)	2008-07-24	2015-04-21	Abengoa Bioenergy New Technologies, Llc	Method and apparatus for conveying a cellulosic feedstock
US9033133B2 (en)	2009-01-23	2015-05-19	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US9127325B2 (en)	2008-07-24	2015-09-08	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for treating a cellulosic feedstock

1987
- 1987-07-22 CA CA 542643 patent/CA1287705C/fr not_active Expired

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8449680B2 (en)	2008-07-24	2013-05-28	Mascoma Canada Inc.	Method and apparatus for treating a cellulosic feedstock
US8778084B2 (en)	2008-07-24	2014-07-15	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for treating a cellulosic feedstock
US8900370B2 (en)	2008-07-24	2014-12-02	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US8911557B2 (en)	2008-07-24	2014-12-16	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US8915644B2 (en)	2008-07-24	2014-12-23	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US9010522B2 (en)	2008-07-24	2015-04-21	Abengoa Bioenergy New Technologies, Llc	Method and apparatus for conveying a cellulosic feedstock
US9127325B2 (en)	2008-07-24	2015-09-08	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for treating a cellulosic feedstock
US9004742B2 (en)	2009-01-23	2015-04-14	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US9033133B2 (en)	2009-01-23	2015-05-19	Abengoa Bioenergy New Technologies, Llc.	Method and apparatus for conveying a cellulosic feedstock
US8545633B2 (en)	2009-08-24	2013-10-01	Abengoa Bioenergy New Technologies, Inc.	Method for producing ethanol and co-products from cellulosic biomass
US9335043B2 (en)	2009-08-24	2016-05-10	Abengoa Bioenergy New Technologies, Inc.	Method for producing ethanol and co-products from cellulosic biomass

Publication	Publication Date	Title
CA1230208A (fr)	1987-12-15	Preparation de la pate a papier
CA1226705A (fr)	1987-09-15	Production chimicothermique de la pate a papier par traitements distincts a l'alcali et au sulfite
KR101715428B1 (ko)	2017-03-10	마이크로피브릴화 셀룰로오스 생산 공정
EP0501059B1 (fr)	1995-11-29	Procédé de lessivage par explosion à la vapeur pour faire du papier
CA1287705C (fr)	1991-08-20	Preparation de la pate a papier
US3944463A (en)	1976-03-16	Pulping of lignocellulosic material with oxygen in two stages at increasing pH
EP0487793B1 (fr)	1995-08-30	Procédé d'explosion pour la préparation de pâte à papier
CA2067129A1 (fr)	1991-03-29	Procede de fabrication chimico-mecanique ou chimico- thermomecanique de la pate de bois
CA2065939A1 (fr)	1993-10-14	Methode de reduction en pate par procede d'explosion a la vapeur utilisee dans la fabrication du papier a partir de plantes annuelles
JPH0340156B2 (fr)	1991-06-18
JP2588495B2 (ja)	1997-03-05	製紙用高収率高漂白度パルプの製造方法
Zhao et al.	2004	Alkaline peroxide mechanical pulping of wheat straw with enzyme treatment
AU2002244309B8 (en)	2002-10-03	Method for producing pulp
US20110073264A1 (en)	2011-03-31	Kraft-Pulping of Hot Water Extracted Woodchips
CA2063547A1 (fr)	1993-09-20	Procede de defibrage par explosion a la vapeur
US2528350A (en)	1950-10-31	Two-step digestion of hardwoods
CA2721612C (fr)	2012-05-22	Procedes de preparation des pates mecaniques ayant un degre de blancheur eleve
US3795574A (en)	1974-03-05	Impregnation of wood with a formaldehyde free alkaline solution of sodium hydroxide at a ph between 12.4 and 13
SE8200756L (sv)	1982-08-12	Sett att framstella kemimekanisk pappersmassa
US20020088569A1 (en)	2002-07-11	Pulping process
CA1078558A (fr)	1980-06-03	Production d'une pate mecanique blanchie, a grande resistance et plus nette de coloration anormale, cedant peu de substances consommatrices d'oxygene
US5433825A (en)	1995-07-18	Method for pulping wood chips separate alkali and peroxymonosulfate treatments
KR100260833B1 (ko)	2000-07-01	고수율기계펄프의 제조방법
EP1082348A1 (fr)	2001-03-14	Procede de preparation d'une cellulose microcristalline de grande purete, exempte de produits chimiques, a partir d'une cellulose produite chimiquement
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Date	Code	Title	Description
2008-08-20	MKEX	Expiry