SE536944C2 - Metod för framställning av natriumhydroxid från ett utflödefrån fibermassaproduktion - Google Patents

Metod för framställning av natriumhydroxid från ett utflödefrån fibermassaproduktion Download PDF

Info

Publication number: SE536944C2
Authority: SE; Sweden
Prior art keywords: sodium; effluent; combustion; borate; pulp
Prior art date: 2009-08-18

Application number

SE1250098A

Other languages

English (en)

Swedish (sv)

Other versions

SE1250098A1 (sv

Inventor

Maija Pitkänen

Original Assignee

Metsä Board Oyj

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.)

2009-08-18

Filing date

2010-08-18

Publication date

2014-11-11

2010-08-18 Application filed by Metsä Board Oyj filed Critical Metsä Board Oyj

2012-02-09 Publication of SE1250098A1 publication Critical patent/SE1250098A1/sv

2014-11-11 Publication of SE536944C2 publication Critical patent/SE536944C2/sv

Links

HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 title claims description 104
238000004519 manufacturing process Methods 0.000 title claims description 23
239000000835 fiber Substances 0.000 title 1
238000000034 method Methods 0.000 claims description 49
238000002485 combustion reaction Methods 0.000 claims description 48
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 47
239000011734 sodium Substances 0.000 claims description 38
BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 32
229910052708 sodium Inorganic materials 0.000 claims description 30
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 description 29
238000005470 impregnation Methods 0.000 claims description 28
239000000126 substance Substances 0.000 claims description 26
239000002351 wastewater Substances 0.000 claims description 22
238000004061 bleaching Methods 0.000 claims description 20
229910000029 sodium carbonate Inorganic materials 0.000 claims description 20
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
229910052760 oxygen Inorganic materials 0.000 claims description 18
239000001301 oxygen Substances 0.000 claims description 18
238000006243 chemical reaction Methods 0.000 claims description 16
239000002699 waste material Substances 0.000 claims description 16
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
238000011084 recovery Methods 0.000 claims description 15
230000001590 oxidative effect Effects 0.000 claims description 14
150000003388 sodium compounds Chemical class 0.000 claims description 13
239000012141 concentrate Substances 0.000 claims description 11
229920001131 Pulp (paper) Polymers 0.000 claims description 10
239000000567 combustion gas Substances 0.000 claims description 10
150000001875 compounds Chemical class 0.000 claims description 10
150000002978 peroxides Chemical class 0.000 claims description 10
239000003518 caustics Substances 0.000 claims description 6
239000007789 gas Substances 0.000 claims description 6
238000009993 causticizing Methods 0.000 claims description 5
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
229910052796 boron Inorganic materials 0.000 claims description 4
239000010815 organic waste Substances 0.000 claims description 4
238000004537 pulping Methods 0.000 claims description 4
239000002994 raw material Substances 0.000 claims description 4
NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 claims description 4
229910021538 borax Inorganic materials 0.000 claims description 3
229910052799 carbon Inorganic materials 0.000 claims description 3
235000010339 sodium tetraborate Nutrition 0.000 claims description 3
UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 claims description 2
150000002894 organic compounds Chemical class 0.000 claims description 2
239000000843 powder Substances 0.000 claims description 2
239000004328 sodium tetraborate Substances 0.000 claims description 2
239000007790 solid phase Substances 0.000 claims description 2
239000007792 gaseous phase Substances 0.000 claims 2
229960004599 sodium borate Drugs 0.000 claims 1
KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims 1
229910001948 sodium oxide Inorganic materials 0.000 claims 1
235000017550 sodium carbonate Nutrition 0.000 description 19
239000003513 alkali Substances 0.000 description 14
239000000243 solution Substances 0.000 description 14
238000010411 cooking Methods 0.000 description 9
238000001816 cooling Methods 0.000 description 9
239000002023 wood Substances 0.000 description 9
102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 description 7
101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 description 7
238000009835 boiling Methods 0.000 description 7
150000001639 boron compounds Chemical class 0.000 description 7
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
241000196324 Embryophyta Species 0.000 description 6
GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 6
235000008733 Citrus aurantifolia Nutrition 0.000 description 5
235000011941 Tilia x europaea Nutrition 0.000 description 5
238000001704 evaporation Methods 0.000 description 5
230000008020 evaporation Effects 0.000 description 5
239000004571 lime Substances 0.000 description 5
239000011368 organic material Substances 0.000 description 5
239000012071 phase Substances 0.000 description 5
238000004064 recycling Methods 0.000 description 5
GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 5
BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 5
ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
150000001642 boronic acid derivatives Chemical class 0.000 description 4
238000004090 dissolution Methods 0.000 description 4
238000005516 engineering process Methods 0.000 description 4
239000000155 melt Substances 0.000 description 4
238000007670 refining Methods 0.000 description 4
229910052979 sodium sulfide Inorganic materials 0.000 description 4
229910021653 sulphate ion Inorganic materials 0.000 description 4
238000012360 testing method Methods 0.000 description 4
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
229910002092 carbon dioxide Inorganic materials 0.000 description 3
239000000112 cooling gas Substances 0.000 description 3
230000000694 effects Effects 0.000 description 3
239000011121 hardwood Substances 0.000 description 3
230000007935 neutral effect Effects 0.000 description 3
229910052938 sodium sulfate Inorganic materials 0.000 description 3
235000011152 sodium sulphate Nutrition 0.000 description 3
235000010265 sodium sulphite Nutrition 0.000 description 3
AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
239000007864 aqueous solution Substances 0.000 description 2
239000000292 calcium oxide Substances 0.000 description 2
239000001569 carbon dioxide Substances 0.000 description 2
239000003054 catalyst Substances 0.000 description 2
238000010586 diagram Methods 0.000 description 2
238000005265 energy consumption Methods 0.000 description 2
238000001914 filtration Methods 0.000 description 2
229920005610 lignin Polymers 0.000 description 2
239000000463 material Substances 0.000 description 2
238000002156 mixing Methods 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
239000002244 precipitate Substances 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
239000010802 sludge Substances 0.000 description 2
239000011122 softwood Substances 0.000 description 2
239000007787 solid Substances 0.000 description 2
GDTSJMKGXGJFGQ-UHFFFAOYSA-N 3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound O1B([O-])OB2OB([O-])OB1O2 GDTSJMKGXGJFGQ-UHFFFAOYSA-N 0.000 description 1
235000018185 Betula X alpestris Nutrition 0.000 description 1
235000018212 Betula X uliginosa Nutrition 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
244000166124 Eucalyptus globulus Species 0.000 description 1
229920002488 Hemicellulose Polymers 0.000 description 1
239000007832 Na2SO4 Substances 0.000 description 1
241000183024 Populus tremula Species 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
150000008041 alkali metal carbonates Chemical class 0.000 description 1
239000012670 alkaline solution Substances 0.000 description 1
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 description 1
150000004056 anthraquinones Chemical class 0.000 description 1
238000013459 approach Methods 0.000 description 1
ICLJVKBSYXENIB-UHFFFAOYSA-N boric acid;carbonic acid Chemical compound OB(O)O.OC(O)=O ICLJVKBSYXENIB-UHFFFAOYSA-N 0.000 description 1
238000001354 calcination Methods 0.000 description 1
229910000019 calcium carbonate Inorganic materials 0.000 description 1
229940043430 calcium compound Drugs 0.000 description 1
150000001674 calcium compounds Chemical class 0.000 description 1
BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
150000001720 carbohydrates Chemical class 0.000 description 1
235000014633 carbohydrates Nutrition 0.000 description 1
238000005119 centrifugation Methods 0.000 description 1
238000011109 contamination Methods 0.000 description 1
230000007423 decrease Effects 0.000 description 1
239000005446 dissolved organic matter Substances 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
238000010304 firing Methods 0.000 description 1
150000004677 hydrates Chemical class 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
239000012535 impurity Substances 0.000 description 1
238000010348 incorporation Methods 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
229910010272 inorganic material Inorganic materials 0.000 description 1
239000011147 inorganic material Substances 0.000 description 1
229910052809 inorganic oxide Inorganic materials 0.000 description 1
239000007788 liquid Substances 0.000 description 1
VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
239000003595 mist Substances 0.000 description 1
239000005022 packaging material Substances 0.000 description 1
238000012545 processing Methods 0.000 description 1
239000000047 product Substances 0.000 description 1
230000008929 regeneration Effects 0.000 description 1
238000011069 regeneration method Methods 0.000 description 1
230000001105 regulatory effect Effects 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
239000011343 solid material Substances 0.000 description 1
-1 sulfate compound Chemical class 0.000 description 1
150000004763 sulfides Chemical group 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
238000004448 titration Methods 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0042—Fractionating or concentration of spent liquors by special methods
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/12—Combustion of pulp liquors
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/12—Combustion of pulp liquors
- D21C11/122—Treatment, e.g. dissolution, of the smelt
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Inorganic Chemistry (AREA)
Paper (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Treatment Of Water By Oxidation Or Reduction (AREA)
Heat Treatment Of Water, Waste Water Or Sewage (AREA)

SE1250098A 2009-08-18 2010-08-18 Metod för framställning av natriumhydroxid från ett utflödefrån fibermassaproduktion SE536944C2 (sv)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI20095851A FI124685B (fi)	2009-08-18	2009-08-18	Menetelmä natriumhydroksidin tuottamiseksi kuitumassan valmistuksen jätevirrasta
PCT/FI2010/050654 WO2011020949A1 (fr)	2009-08-18	2010-08-18	Procédé de production d'hydroxyde de sodium à partir d'un effluent de la production de pâte fibreuse

Publications (2)

Publication Number	Publication Date
SE1250098A1 SE1250098A1 (sv)	2012-02-09
SE536944C2 true SE536944C2 (sv)	2014-11-11

Family

ID=41050679

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE1250098A SE536944C2 (sv)	2009-08-18	2010-08-18	Metod för framställning av natriumhydroxid från ett utflödefrån fibermassaproduktion

Country Status (9)

Country	Link
CN (1)	CN102625778B (fr)
AR (1)	AR080852A1 (fr)
BR (1)	BR112012003755B1 (fr)
CA (1)	CA2767903C (fr)
FI (1)	FI124685B (fr)
RU (1)	RU2550177C2 (fr)
SE (1)	SE536944C2 (fr)
UY (1)	UY32847A (fr)
WO (1)	WO2011020949A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI126767B (en) *	2012-11-16	2017-05-15	Andritz Oy	Method for extracting the ash from a recovery boiler
CN103494810A (zh) *	2013-09-25	2014-01-08	青岛市市立医院	治疗网络成瘾的药物组合物
WO2020220117A1 (fr) *	2019-04-29	2020-11-05	Fpinnovations	Procédé de récupération d'alcali à partir d'un matériau contenant un oxyde/hydroxyde métallique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI53141C (fr)	1975-09-02	1978-02-10	Keskuslaboratorio
SU1624082A1 (ru) *	1989-01-12	1991-01-30	Ленинградская лесотехническая академия им.С.М.Кирова	Способ регенерации отработанного щелока от сульфатной варки целлюлозы
US6348128B1 (en)	1998-06-01	2002-02-19	U.S. Borax Inc.	Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition
US6294048B1 (en)	1998-06-01	2001-09-25	U.S. Borax Inc.	Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate
SE0202711D0 (sv) *	2002-09-12	2002-09-12	Kiram Ab	Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali
US20050076568A1 (en) *	2003-10-09	2005-04-14	Stigsson Lars Lennart	Partial oxidation of cellulose spent pulping liquor
FI120548B (fi)	2004-01-14	2009-11-30	Rinheat Oy	Menetelmä alkaliyhdisteitä sisältävän orgaanisen jätekonsentraatin polttamiseksi hapettavissa olosuhteissa
US20050155730A1 (en)	2004-01-20	2005-07-21	Stigsson Lars L.	Method for the production of high yield chemical pulp from softwood

2009
- 2009-08-18 FI FI20095851A patent/FI124685B/fi active IP Right Grant
2010
- 2010-08-18 WO PCT/FI2010/050654 patent/WO2011020949A1/fr not_active Ceased
- 2010-08-18 CA CA2767903A patent/CA2767903C/fr active Active
- 2010-08-18 CN CN201080037341.6A patent/CN102625778B/zh active Active
- 2010-08-18 UY UY0001032847A patent/UY32847A/es unknown
- 2010-08-18 SE SE1250098A patent/SE536944C2/sv unknown
- 2010-08-18 RU RU2012102318/05A patent/RU2550177C2/ru active
- 2010-08-18 AR ARP100103016A patent/AR080852A1/es active IP Right Grant
- 2010-08-18 BR BR112012003755-2A patent/BR112012003755B1/pt active IP Right Grant

Also Published As

Publication number	Publication date
CN102625778B (zh)	2015-05-20
RU2012102318A (ru)	2013-09-27
AR080852A1 (es)	2012-05-16
BR112012003755A2 (pt)	2016-04-12
UY32847A (es)	2011-06-30
CA2767903C (fr)	2019-05-14
FI20095851L (fi)	2011-02-23
WO2011020949A1 (fr)	2011-02-24
FI124685B (fi)	2014-12-15
FI20095851A0 (fi)	2009-08-18
BR112012003755B1 (pt)	2019-05-28
RU2550177C2 (ru)	2015-05-10
CN102625778A (zh)	2012-08-01
CA2767903A1 (fr)	2011-02-24
SE1250098A1 (sv)	2012-02-09

Publication	Publication Date	Title
SU1443810A3 (ru)	1988-12-07	Способ получени химических веществ из отработанного щелока сульфатного производства целлюлозы
JP6014256B2 (ja)	2016-10-25	パルプ化薬品の回収、及びパルプ化薬品中のカリウムと塩化物の濃度を低下する方法
CN107660245B (zh)	2020-09-08	从具有高碳酸盐含量的溶解的灰分回收制浆化学物质的方法
FI103902B (fi)	1999-10-15	Menetelmä keittolipeiden, joilla on korkea sulfidisuus, valmistamiseksi sukfaattisellun keittämiseksi
SE536944C2 (sv)	2014-11-11	Metod för framställning av natriumhydroxid från ett utflödefrån fibermassaproduktion
CA1122360A (fr)	1982-04-27	Methode employee en rapport avec la digestion de matiere a teneur de cellulose
US20090025892A1 (en)	2009-01-29	Method to recover chemicals in mechanical pulping
FI120548B (fi)	2009-11-30	Menetelmä alkaliyhdisteitä sisältävän orgaanisen jätekonsentraatin polttamiseksi hapettavissa olosuhteissa
CA1332862C (fr)	1994-11-08	Procede de fabrication de la pate a papier kraft
EP0617747A1 (fr)	1994-10-05	Methode d'elaboration de liqueur de digestion.
CA1072262A (fr)	1980-02-26	Traitement des pates de papier par l'elimination de chlorure de sodium
SE435304B (sv)	1984-09-17	Utnyttjande av vid kokvetskeberedning framstellt svavelvete vid framstellning av klordioxid for blekning
SE528837C2 (sv)	2007-02-27	Peroxidblekning av mekanisk massa med alkalimetallaluminat som alkali
BR112021015563B1 (pt)	2025-11-11	Um método de repor as perdas de sódio em uma fábrica de celulose, um método de produzir polpa celulósica branqueada e um sistema
CS218568B2 (cs)	1983-02-25	Způsob odstraňování chloridu sodného při výrobě buničiny še zařazeným regeneračním postupem
JPH0252034B2 (fr)	1990-11-09