FI93233B - Tapa viherlipeän puhdistamiseksi sulfaattimassatehtaiden kemikaalien talteenotossa - Google Patents

Tapa viherlipeän puhdistamiseksi sulfaattimassatehtaiden kemikaalien talteenotossa

Info

Publication number: FI93233B
Authority: FI; Finland
Prior art keywords: green liquor; pct; chemicals; recovery; way
Prior art date: 1987-02-12

Application number

FI884654A

Other languages

English (en)

Finnish (fi)

Swedish (sv)

Other versions

FI884654A0 (fi

FI884654L (fi

Inventor

Bertil Pettersson

Original Assignee

Caustec 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.)

1987-02-12

Filing date

1988-10-11

Publication date

1994-11-30

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20367487&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI93233(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1988-10-11 Application filed by Caustec Ab filed Critical Caustec Ab

1988-10-11 Publication of FI884654A0 publication Critical patent/FI884654A0/fi

1988-10-11 Publication of FI884654L publication Critical patent/FI884654L/fi

1994-11-30 Application granted granted Critical

1994-11-30 Publication of FI93233B publication Critical patent/FI93233B/fi

Links

QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title 1
238000011084 recovery Methods 0.000 title 1
239000000126 substance Substances 0.000 title 1
229910021653 sulphate ion Inorganic materials 0.000 title 1
ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 3
229910001861 calcium hydroxide Inorganic materials 0.000 abstract 3
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
239000012535 impurity Substances 0.000 abstract 2
239000002245 particle Substances 0.000 abstract 2
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 1
229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
238000009993 causticizing Methods 0.000 abstract 1
238000004140 cleaning Methods 0.000 abstract 1
238000001914 filtration Methods 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1
239000002244 precipitate Substances 0.000 abstract 1
239000007787 solid Substances 0.000 abstract 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
- D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/03—Papermaking liquor

Landscapes

Paper (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

FI884654A 1987-02-12 1988-10-11 Tapa viherlipeän puhdistamiseksi sulfaattimassatehtaiden kemikaalien talteenotossa FI93233B (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8700549A SE456254B (sv)	1987-02-12	1987-02-12	Sett att rena gronlut i sulfatmassafabrikers kemikalieatervinning
PCT/SE1988/000035 WO1988006203A1 (en)	1987-02-12	1988-02-03	Method for green liquor cleaning in sulphate pulp mills

Publications (3)

Publication Number	Publication Date
FI884654A0 FI884654A0 (fi)	1988-10-11
FI884654L FI884654L (fi)	1988-10-11
FI93233B true FI93233B (fi)	1994-11-30

Family

ID=20367487

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI884654A FI93233B (fi)	1987-02-12	1988-10-11	Tapa viherlipeän puhdistamiseksi sulfaattimassatehtaiden kemikaalien talteenotossa

Country Status (11)

Country	Link
US (1)	US4941945A (de)
EP (1)	EP0399999B2 (de)
JP (1)	JPH01502207A (de)
AT (1)	ATE81689T1 (de)
AU (1)	AU603875B2 (de)
BR (1)	BR8805400A (de)
CA (1)	CA1286456C (de)
DE (1)	DE3875493D1 (de)
FI (1)	FI93233B (de)
SE (1)	SE456254B (de)
WO (1)	WO1988006203A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE467465C (sv) *	1990-11-21	2002-01-15	Caustec Ab	Förfarande för att ge grönlut förbättrade sedimenterings- och filtreringsegenskaper
US5205493A (en) *	1991-12-12	1993-04-27	Adler Paul E	Process for producing a carbonate composition
SE500748C2 (sv) *	1992-10-12	1994-08-22	Bertil Pettersson	Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut
SE500660C2 (sv) *	1992-12-03	1994-08-01	Mo Och Domsjoe Ab	Förfarande för framställning av grönlut vid kemikalieåtervinning i sulfat- och sulfitmassafabriker
AT398992B (de) *	1993-04-05	1995-02-27	Austrian Energy & Environment	Verfahren zur umwandlung von natriumsulfat
SE501347C2 (sv) *	1993-06-04	1995-01-23	Korsnaes Ab	Framställning av vitlut med förhöjd och/eller minskad sulfiditet
US5368731A (en) *	1993-10-04	1994-11-29	Dorr-Oliver Incorporated	Vacuum assisted slaker classifier
SE9401663L (sv) *	1994-05-13	1995-06-12	Kvaerner Pulping Tech	Förfarande för att fälla magnesium med aluminium vid grönlutsklarning
US5705031A (en) *	1994-06-15	1998-01-06	Kvaerner Pulping Technologies Ab	Process for removing and washing dregs from green liquor in a kraft pulp mill
AU2001271424A1 (en)	2000-06-27	2002-01-08	International Paper Company	Method to manufacture paper using fiber filler complexes
CN1225586C (zh) *	2002-02-09	2005-11-02	艾栋	改进的造纸黑液碱回收新工艺
SE524247C2 (sv) *	2002-11-25	2004-07-13	Kvaerner Pulping Tech	Metod vid produktion av grönlut
US20060225852A1 (en) *	2005-04-11	2006-10-12	Jan Pekarovic	Process for removing silica from cellulosic material
US7735435B2 (en) *	2006-05-24	2010-06-15	Diamond Power International, Inc.	Apparatus for cleaning a smelt spout of a combustion device
US8434502B2 (en) *	2009-06-16	2013-05-07	Barry L. Wilson	Caustic recovery system for C.I.P. cleaning system
WO2020160582A1 (de)	2019-02-04	2020-08-13	Technische Universität Wien	Tübbing aus bewehrtem beton
FI130092B (en) *	2019-08-22	2023-01-31	Valmet Technologies Oy	Method and system for adjusting the pH of green liquor sludge
JP6901032B1 (ja)	2020-07-02	2021-07-14	栗田工業株式会社	緑液処理剤
JP7070612B2 (ja)	2020-07-02	2022-05-18	栗田工業株式会社	緑液処理方法、緑液処理管理システム

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2734037A (en) *		1956-02-07		Method of introducing sulfite waste
US1815646A (en) *	1926-08-09	1931-07-21	Bates	Process of causticizing
US2552183A (en) *	1945-04-07	1951-05-08	Dorr Co	Two-stage causticizing
SE7809167L (sv) *	1978-08-30	1980-03-01	Rosenblads Patenter Ab	Barlastreduktion
JPS55103387A (en) *	1979-02-05	1980-08-07	Mitsubishi Heavy Ind Ltd	Silica removal from pulp digesting liqur
FI65918C (fi) *	1980-05-29	1984-08-10	Enso Gutzeit Oy	Foerfarande foer att avskilja sodasediment fraon groenlutsuspension genom filtrering
FI72155C (sv) *	1983-10-25	1987-04-13	Partek Ab	Förfarande för kausticering av grönlut i en alkalisk massakokningsproc ess.
JPS61174491A (ja) *	1985-01-24	1986-08-06	三菱重工業株式会社	硅素分含有緑液の苛性化方法
US4770742A (en) *	1987-08-07	1988-09-13	Domtar Inc.	Method for increasing the efficiency of a causticizing process

1987
- 1987-02-12 SE SE8700549A patent/SE456254B/sv not_active Application Discontinuation
1988
- 1988-02-03 AT AT88901945T patent/ATE81689T1/de not_active IP Right Cessation
- 1988-02-03 AU AU12984/88A patent/AU603875B2/en not_active Ceased
- 1988-02-03 US US07/259,570 patent/US4941945A/en not_active Expired - Lifetime
- 1988-02-03 JP JP63501856A patent/JPH01502207A/ja active Pending
- 1988-02-03 BR BR8805400A patent/BR8805400A/pt not_active IP Right Cessation
- 1988-02-03 WO PCT/SE1988/000035 patent/WO1988006203A1/en not_active Ceased
- 1988-02-03 EP EP88901945A patent/EP0399999B2/de not_active Expired - Lifetime
- 1988-02-03 DE DE8888901945T patent/DE3875493D1/de not_active Expired - Lifetime
- 1988-02-09 CA CA000558508A patent/CA1286456C/en not_active Expired - Fee Related
- 1988-10-11 FI FI884654A patent/FI93233B/fi not_active Application Discontinuation

Also Published As

Publication number	Publication date
SE456254B (sv)	1988-09-19
WO1988006203A1 (en)	1988-08-25
JPH01502207A (ja)	1989-08-03
SE8700549D0 (sv)	1987-02-12
BR8805400A (pt)	1989-08-15
EP0399999B2 (de)	1999-05-06
FI884654A0 (fi)	1988-10-11
CA1286456C (en)	1991-07-23
DE3875493D1 (de)	1992-11-26
US4941945A (en)	1990-07-17
FI884654L (fi)	1988-10-11
AU1298488A (en)	1988-09-14
EP0399999A1 (de)	1990-12-05
AU603875B2 (en)	1990-11-29
EP0399999B1 (de)	1992-10-21
ATE81689T1 (de)	1992-11-15

Legal Events

Date	Code	Title	Description
1993-09-06	GB	Transfer or assigment of application	Owner name: CAUSTEC AB
1994-11-01	BB	Publication of examined application
1997-03-26	CD	Patent refused following opposition
2004-08-31	FC	Application refused	Owner name: CAUSTEC AB

Publication	Publication Date	Title
FI93233B (fi)	1994-11-30	Tapa viherlipeän puhdistamiseksi sulfaattimassatehtaiden kemikaalien talteenotossa
US3639206A (en)	1972-02-01	Treatment of waste water from alkaline pulping processes
AU667612B2 (en)	1996-03-28	A method of producing green liquor in chemical recovery in sulfate and sulfite pulp mills
US4331507A (en)	1982-05-25	Desilication in alkaline pulp processes
US3531370A (en)	1970-09-29	Color removal from waste effluents
CA1130023A (en)	1982-08-17	Method of treating pulp bleaching effluents
ATE19416T1 (de)	1986-05-15	Verfahren zur kontinuierlichen entfernung von kieselsaeure aus zellstoffablaugen.
NO950907L (no)	1995-09-12	Fremgangsmåte for rensing av en olje- eller gassbrönn
US3945917A (en)	1976-03-23	Decolorizing method for waste kraft paper mill effluents
US2114576A (en)	1938-04-19	Treatment of contaminated water
FR2544353B1 (fr)	1985-06-28	Traitement des liqueurs entrant dans le cycle de caustification du procede kraft en vue de l'utilisation ulterieure du carbonate de calcium
US2734037A (en)	1956-02-07	Method of introducing sulfite waste
US3163598A (en)	1964-12-29	Method for disposal of industrial waste water
US3120464A (en)	1964-02-04	Decolorizing kraft waste liquors
ATE45198T1 (de)	1989-08-15	Verfahren zur nutzung des kalkschlammes vom kaustifizierungszyklus des kraftverfahrens.
US2592907A (en)	1952-04-15	Cooking liquor treatment
US2382902A (en)	1945-08-14	Boiler feed-water treatment process
RU2015236C1 (ru)	1994-06-30	Способ регенерации химикатов из отработанных щелоков сульфатного производства
FI932193A0 (fi)	1993-05-14	Foerfarande och anordning vid en anlaeggning foer kemikalieaotervinning foer i en sulfatmassafabrik
JPH07508564A (ja)	1995-09-21	カセイ化処理による製品の濾過方法
RU2167969C1 (ru)	2001-05-27	Способ промывки каустизационного шлама крепкого белого щелока
SU998363A1 (ru)	1983-02-23	Способ очистки сточных вод
SU842034A1 (ru)	1981-06-30	Способ ум гчени воды
SU490755A1 (ru)	1975-11-05	Способ получени карбоната кальци из шлама каустификации производства едкого натри известковым методом
KR960031348A (ko)	1996-09-17	제염 공정 폐기물을 이용한 산업 폐수 처리방법