CA1096560A - Traduction non-disponible - Google Patents

Traduction non-disponible

Info

Publication number: CA1096560A
Authority: CA; Canada
Prior art keywords: pulping; process according; stage; compound; liquor
Prior art date: 1976-11-03
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

CA289,976A

Other languages

English (en)

Inventor

Hans O. Samuelson

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.)

1976-11-03

Filing date

1977-11-01

Publication date

1981-03-03

1977-11-01 Application filed by Mo och Domsjo AB filed Critical Mo och Domsjo AB

1981-03-03 Application granted granted Critical

1981-03-03 Publication of CA1096560A publication Critical patent/CA1096560A/fr

Status Expired legal-status Critical Current

Links

238000004537 pulping Methods 0.000 title claims abstract description 110
238000000034 method Methods 0.000 title claims abstract description 57
230000008569 process Effects 0.000 title claims abstract description 54
239000012978 lignocellulosic material Substances 0.000 title claims abstract description 15
239000003513 alkali Substances 0.000 title claims abstract description 10
150000005208 1,4-dihydroxybenzenes Chemical class 0.000 title abstract description 4
150000004053 quinones Chemical class 0.000 title description 4
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 96
239000003265 pulping liquor Substances 0.000 claims abstract description 50
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 43
AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 claims abstract description 40
QIGBRXMKCJKVMJ-UHFFFAOYSA-N 1,4-Benzenediol Natural products OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims abstract description 19
229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 18
-1 hydroquinone compound Chemical class 0.000 claims abstract description 15
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 12
UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 11
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 8
239000001569 carbon dioxide Substances 0.000 claims abstract description 6
229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 6
235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 6
229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 6
150000001875 compounds Chemical class 0.000 claims description 27
PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 23
150000004056 anthraquinones Chemical class 0.000 claims description 23
239000002699 waste material Substances 0.000 claims description 16
125000003118 aryl group Chemical group 0.000 claims description 13
229960004337 hydroquinone Drugs 0.000 claims description 13
125000002837 carbocyclic group Chemical group 0.000 claims description 10
150000002791 naphthoquinones Chemical class 0.000 claims description 6
PCFMUWBCZZUMRX-UHFFFAOYSA-N 9,10-Dihydroxyanthracene Chemical compound C1=CC=C2C(O)=C(C=CC=C3)C3=C(O)C2=C1 PCFMUWBCZZUMRX-UHFFFAOYSA-N 0.000 claims description 5
229930192627 Naphthoquinone Natural products 0.000 claims description 5
125000000217 alkyl group Chemical group 0.000 claims description 3
PCILLCXFKWDRMK-UHFFFAOYSA-N naphthalene-1,4-diol Chemical compound C1=CC=C2C(O)=CC=C(O)C2=C1 PCILLCXFKWDRMK-UHFFFAOYSA-N 0.000 claims description 3
125000002252 acyl group Chemical group 0.000 claims description 2
125000004432 carbon atom Chemical group C* 0.000 claims description 2
150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
229910052739 hydrogen Inorganic materials 0.000 claims description 2
239000001257 hydrogen Substances 0.000 claims description 2
125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
125000002768 hydroxyalkyl group Chemical group 0.000 claims description 2
125000005027 hydroxyaryl group Chemical group 0.000 claims description 2
125000001424 substituent group Chemical group 0.000 claims description 2
239000002023 wood Substances 0.000 abstract description 34
235000011121 sodium hydroxide Nutrition 0.000 description 28
235000017550 sodium carbonate Nutrition 0.000 description 16
230000029087 digestion Effects 0.000 description 10
239000000243 solution Substances 0.000 description 9
238000007792 addition Methods 0.000 description 7
239000000126 substance Substances 0.000 description 7
UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
230000000694 effects Effects 0.000 description 6
229910052760 oxygen Inorganic materials 0.000 description 6
239000001301 oxygen Substances 0.000 description 6
239000011734 sodium Substances 0.000 description 6
235000018185 Betula X alpestris Nutrition 0.000 description 5
235000018212 Betula X uliginosa Nutrition 0.000 description 5
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
239000007789 gas Substances 0.000 description 5
239000004571 lime Substances 0.000 description 5
229910052708 sodium Inorganic materials 0.000 description 5
229910052717 sulfur Inorganic materials 0.000 description 5
239000011593 sulfur Substances 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
NJWGQARXZDRHCD-UHFFFAOYSA-N 2-methylanthraquinone Chemical compound C1=CC=C2C(=O)C3=CC(C)=CC=C3C(=O)C2=C1 NJWGQARXZDRHCD-UHFFFAOYSA-N 0.000 description 4
235000008733 Citrus aurantifolia Nutrition 0.000 description 4
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
235000011941 Tilia x europaea Nutrition 0.000 description 4
MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
238000004061 bleaching Methods 0.000 description 4
150000001720 carbohydrates Chemical group 0.000 description 4
235000014633 carbohydrates Nutrition 0.000 description 4
229910052799 carbon Inorganic materials 0.000 description 4
239000001913 cellulose Substances 0.000 description 4
229920002678 cellulose Polymers 0.000 description 4
238000007872 degassing Methods 0.000 description 4
238000010438 heat treatment Methods 0.000 description 4
239000000843 powder Substances 0.000 description 4
238000004064 recycling Methods 0.000 description 4
238000012935 Averaging Methods 0.000 description 3
239000000654 additive Substances 0.000 description 3
238000002485 combustion reaction Methods 0.000 description 3
239000000295 fuel oil Substances 0.000 description 3
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 3
238000004519 manufacturing process Methods 0.000 description 3
239000010802 sludge Substances 0.000 description 3
RBGUKBSLNOTVCD-UHFFFAOYSA-N 1-methylanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2C RBGUKBSLNOTVCD-UHFFFAOYSA-N 0.000 description 2
JAJIPIAHCFBEPI-UHFFFAOYSA-N 9,10-dioxoanthracene-1-sulfonic acid Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2S(=O)(=O)O JAJIPIAHCFBEPI-UHFFFAOYSA-N 0.000 description 2
MMNWSHJJPDXKCH-UHFFFAOYSA-N 9,10-dioxoanthracene-2-sulfonic acid Chemical compound C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 MMNWSHJJPDXKCH-UHFFFAOYSA-N 0.000 description 2
BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
241000196324 Embryophyta Species 0.000 description 2
239000002253 acid Substances 0.000 description 2
230000000996 additive effect Effects 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
QBPFLULOKWLNNW-UHFFFAOYSA-N chrysazin Chemical compound O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=CC=C2O QBPFLULOKWLNNW-UHFFFAOYSA-N 0.000 description 2
238000010411 cooking Methods 0.000 description 2
238000000354 decomposition reaction Methods 0.000 description 2
239000003112 inhibitor Substances 0.000 description 2
230000002401 inhibitory effect Effects 0.000 description 2
150000002500 ions Chemical class 0.000 description 2
229920005610 lignin Polymers 0.000 description 2
239000000203 mixture Substances 0.000 description 2
230000003647 oxidation Effects 0.000 description 2
238000007254 oxidation reaction Methods 0.000 description 2
239000000047 product Substances 0.000 description 2
238000000746 purification Methods 0.000 description 2
239000002994 raw material Substances 0.000 description 2
VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
CPHUZRIOZHJDGD-UHFFFAOYSA-N 1-(2-hydroxyethyl)anthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2CCO CPHUZRIOZHJDGD-UHFFFAOYSA-N 0.000 description 1
BMTMWCVGAVWDRA-UHFFFAOYSA-N 1-(hydroxymethyl)anthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2CO BMTMWCVGAVWDRA-UHFFFAOYSA-N 0.000 description 1
KHUFHLFHOQVFGB-UHFFFAOYSA-N 1-aminoanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2N KHUFHLFHOQVFGB-UHFFFAOYSA-N 0.000 description 1
BTLXPCBPYBNQNR-UHFFFAOYSA-N 1-hydroxyanthraquinone Chemical class O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2O BTLXPCBPYBNQNR-UHFFFAOYSA-N 0.000 description 1
FXUKGDZKAQHTRY-UHFFFAOYSA-N 1-propan-2-ylanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2C(C)C FXUKGDZKAQHTRY-UHFFFAOYSA-N 0.000 description 1
WQOWBWVMZPPPGX-UHFFFAOYSA-N 2,6-diaminoanthracene-9,10-dione Chemical compound NC1=CC=C2C(=O)C3=CC(N)=CC=C3C(=O)C2=C1 WQOWBWVMZPPPGX-UHFFFAOYSA-N 0.000 description 1
235000003932 Betula Nutrition 0.000 description 1
241000219429 Betula Species 0.000 description 1
235000009109 Betula pendula Nutrition 0.000 description 1
241000219430 Betula pendula Species 0.000 description 1
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
229920002488 Hemicellulose Polymers 0.000 description 1
241000347881 Kadua laxiflora Species 0.000 description 1
229930194542 Keto Natural products 0.000 description 1
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
235000011613 Pinus brutia Nutrition 0.000 description 1
241000018646 Pinus brutia Species 0.000 description 1
235000008582 Pinus sylvestris Nutrition 0.000 description 1
241000218626 Pinus sylvestris Species 0.000 description 1
241000183024 Populus tremula Species 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
LJSAJMXWXGSVNA-UHFFFAOYSA-N a805044 Chemical compound OC1=CC=C(O)C=C1.OC1=CC=C(O)C=C1 LJSAJMXWXGSVNA-UHFFFAOYSA-N 0.000 description 1
238000003915 air pollution Methods 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
125000003545 alkoxy group Chemical group 0.000 description 1
125000002947 alkylene group Chemical group 0.000 description 1
150000001412 amines Chemical class 0.000 description 1
150000001454 anthracenes Chemical class 0.000 description 1
239000007864 aqueous solution Substances 0.000 description 1
238000002419 base digestion Methods 0.000 description 1
238000010923 batch production Methods 0.000 description 1
150000001555 benzenes Chemical class 0.000 description 1
239000011575 calcium Substances 0.000 description 1
229910052791 calcium Inorganic materials 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
239000007795 chemical reaction product Substances 0.000 description 1
KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
239000011280 coal tar Substances 0.000 description 1
229960001577 dantron Drugs 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
OYFJQPXVCSSHAI-QFPUQLAESA-N enalapril maleate Chemical compound OC(=O)\C=C/C(O)=O.C([C@@H](C(=O)OCC)N[C@@H](C)C(=O)N1[C@@H](CCC1)C(O)=O)CC1=CC=CC=C1 OYFJQPXVCSSHAI-QFPUQLAESA-N 0.000 description 1
150000002148 esters Chemical class 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
239000000446 fuel Substances 0.000 description 1
AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
239000002655 kraft paper Substances 0.000 description 1
239000000463 material Substances 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
150000002790 naphthalenes Chemical class 0.000 description 1
229910017604 nitric acid Inorganic materials 0.000 description 1
GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
239000000123 paper Substances 0.000 description 1
ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
239000001839 pinus sylvestris Substances 0.000 description 1
231100000614 poison Toxicity 0.000 description 1
230000007096 poisonous effect Effects 0.000 description 1
230000008092 positive effect Effects 0.000 description 1
238000003825 pressing Methods 0.000 description 1
125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
238000011084 recovery Methods 0.000 description 1
238000005201 scrubbing Methods 0.000 description 1
238000004904 shortening Methods 0.000 description 1
GGCZERPQGJTIQP-UHFFFAOYSA-M sodium 2-anthraquinonesulfonate Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)[O-])=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-M 0.000 description 1
229910052979 sodium sulfide Inorganic materials 0.000 description 1
GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
230000006641 stabilisation Effects 0.000 description 1
238000011105 stabilization Methods 0.000 description 1
230000000087 stabilizing effect Effects 0.000 description 1
150000003871 sulfonates Chemical class 0.000 description 1
150000003464 sulfur compounds Chemical class 0.000 description 1
238000005406 washing 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
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
- 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)
Dry Formation Of Fiberboard And The Like (AREA)

CA289,976A 1976-11-03 1977-11-01 Traduction non-disponible Expired CA1096560A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE7612248A SE7612248L (sv)	1976-11-03	1976-11-03	Kokning av lignocellulosahaltiga material
SE7612248-0		1976-11-03

Publications (1)

Publication Number	Publication Date
CA1096560A true CA1096560A (fr)	1981-03-03

Family

ID=20329328

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA289,976A Expired CA1096560A (fr)	1976-11-03	1977-11-01	Traduction non-disponible

Country Status (8)

Country	Link
JP (1)	JPS5358004A (fr)
BR (1)	BR7707297A (fr)
CA (1)	CA1096560A (fr)
FI (1)	FI773115A7 (fr)
FR (1)	FR2370121A1 (fr)
NO (1)	NO773750L (fr)
NZ (1)	NZ185406A (fr)
SE (1)	SE7612248L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2007137127A3 (fr) *	2006-05-19	2009-05-07	Univ New York State Res Found	Procédés de prétraitement au carbonate et de réduction en pâte de matière cellulosique
US8303767B2 (en)	2008-03-18	2012-11-06	The Research Foundation Of State University Of New York	Methods of pretreating comminuted cellulosic material with carbonate-containing solutions

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE413785B (sv) *	1978-09-22	1980-06-23	Mo Och Domsjoe Ab	Forfarande for uppslutning av lignocellulosahaltiga material genom alkalisk kokning i nervaro av ett tillsatsemne av redoxtyp
DE3212767A1 (de) *	1982-04-06	1983-10-06	Nicolaus Md Verwaltungsges	Verfahren und reaktor zum kontinuierlichen aufschliessen von pflanzenfasermaterial
JPS6081400A (ja) *	1983-10-11	1985-05-09	本州製紙株式会社	金属類の包装材料
ATE57400T1 (de) *	1985-08-05	1990-10-15	Interox Sa	Verfahren zur delignifizierung von zellulosematerialien.

1976
- 1976-11-03 SE SE7612248A patent/SE7612248L/ unknown
1977
- 1977-10-11 NZ NZ185406A patent/NZ185406A/xx unknown
- 1977-10-20 FI FI773115A patent/FI773115A7/fi not_active Application Discontinuation
- 1977-10-21 JP JP12665877A patent/JPS5358004A/ja active Pending
- 1977-10-31 BR BR7707297A patent/BR7707297A/pt unknown
- 1977-11-01 CA CA289,976A patent/CA1096560A/fr not_active Expired
- 1977-11-02 FR FR7732940A patent/FR2370121A1/fr active Granted
- 1977-11-02 NO NO773750A patent/NO773750L/no unknown

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2007137127A3 (fr) *	2006-05-19	2009-05-07	Univ New York State Res Found	Procédés de prétraitement au carbonate et de réduction en pâte de matière cellulosique
US8303767B2 (en)	2008-03-18	2012-11-06	The Research Foundation Of State University Of New York	Methods of pretreating comminuted cellulosic material with carbonate-containing solutions

Also Published As

Publication number	Publication date
NZ185406A (en)	1980-10-08
NO773750L (no)	1978-05-05
FI773115A7 (fi)	1978-05-04
BR7707297A (pt)	1978-08-08
FR2370121A1 (fr)	1978-06-02
JPS5358004A (en)	1978-05-25
SE7612248L (sv)	1978-05-04
FR2370121B1 (fr)	1982-11-19

Legal Events

Date	Code	Title	Description
1998-03-03	MKEX	Expiry

Publication	Publication Date	Title
AU620242B2 (en)	1992-02-13	Producing pulp
US5338405A (en)	1994-08-16	Production of fiber pulp by impregnating the lignocellulosic material with an aqueous alcoholic SO2 solution prior to defibration
NO134563B (fr)	1976-07-26
FI75883C (fi)	1988-08-08	Foerfarande foer framstaellning av koklut.
US3691008A (en)	1972-09-12	Two-stage soda-oxygen pulping
US1891337A (en)	1932-12-20	Process of producing cellulose
US2308564A (en)	1943-01-19	Recovery of cellulose and lignin from wood
US4091749A (en)	1978-05-30	Alkaline pulping of lignocellulosic material with amine pretreatment
CA1096560A (fr)	1981-03-03	Traduction non-disponible
NO140535B (no)	1979-06-11	Fremgangsmaate for fremstilling av cellulosemasse ved oppslutning med oksygen
US4045280A (en)	1977-08-30	Alkaline pulping of lignocellulosic material with amine and nitrate pretreatment
US3811995A (en)	1974-05-21	Method of high yield semichemical pulp production
US4127439A (en)	1978-11-28	Pretreatment of lignocellulose with anthraquinone prior to pulping
US4073678A (en)	1978-02-14	High yield semichemical wood pulping process
FI69128C (fi)	1985-12-10	Foerfarande foer delignifiering av lignocellulosamaterial
FI68679C (fi)	1985-10-10	Foerfarande foer uppslutning av lignocellulosahaltiga materialgenom alkalisk kokning
US2601110A (en)	1952-06-17	Pulping lignocellulose with sodium aluminate
US2701763A (en)	1955-02-08	Process of manufacturing pulp from cellulosic fibrous materials
AU2008202566B2 (en)	2011-11-03	Processes and Systems for the Bleaching of Lignocellulosic Pulps Following Cooking with Soda and Anthraquinone
US20050155730A1 (en)	2005-07-21	Method for the production of high yield chemical pulp from softwood
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
US3490993A (en)	1970-01-20	Process of treating lignocellulosic material with organomercaptan
US2049567A (en)	1936-08-04	Manufacture of paper pulp
US4036680A (en)	1977-07-19	Delignification of lignocellulosic material with a soda pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone in admixture with a nitro aromatic compound
US3354029A (en)	1967-11-21	Method of alkaline digestion of cellulosic materials

CA1096560A - Traduction non-disponible - Google Patents

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