FI955805A - Förfarande för framställning av vitlut - Google Patents

Förfarande för framställning av vitlut Download PDF

Info

Publication number: FI955805A
Authority: FI; Finland
Prior art keywords: white liquor; making white; making; liquor; white
Prior art date: 1993-06-04

Application number

FI955805A

Other languages

English (en)

Finnish (fi)

Other versions

FI955805A0 (sv

FI110792B (sv

Inventor

Bertil Pettersson

Bertil Granqvist

Ingemar Eriksson

Original Assignee

Korsnaes 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.)

1993-06-04

Filing date

1995-12-01

Publication date

1995-12-01

1995-12-01 Application filed by Korsnaes Ab filed Critical Korsnaes Ab

1995-12-01 Publication of FI955805A0 publication Critical patent/FI955805A0/sv

1995-12-01 Publication of FI955805A publication Critical patent/FI955805A/sv

2003-03-31 Application granted granted Critical

2003-03-31 Publication of FI110792B publication Critical patent/FI110792B/sv

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
- D21C11/04—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
- D21C11/0064—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

FI955805A 1993-06-04 1995-12-01 Förfarande för framställning av vitlut FI110792B (sv)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
SE9301921A SE501347C2 (sv)	1993-06-04	1993-06-04	Framställning av vitlut med förhöjd och/eller minskad sulfiditet
SE9301921		1993-06-04
SE9400537		1994-06-03
PCT/SE1994/000537 WO1994029516A1 (en)	1993-06-04	1994-06-03	Production of white liquor

Publications (3)

Publication Number	Publication Date
FI955805A0 FI955805A0 (sv)	1995-12-01
FI955805A true FI955805A (sv)	1995-12-01
FI110792B FI110792B (sv)	2003-03-31

Family

ID=20390169

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI955805A FI110792B (sv)	1993-06-04	1995-12-01	Förfarande för framställning av vitlut

Country Status (4)

Country	Link
US (1)	US5667633A (sv)
FI (1)	FI110792B (sv)
SE (1)	SE501347C2 (sv)
WO (1)	WO1994029516A1 (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0868563A1 (en) *	1995-12-22	1998-10-07	Combustion Engineering, Inc.	Black liquor gasification process and regeneration of pulping liquor
US5738758A (en) *	1995-12-22	1998-04-14	The University Of New Brunswick	Process for the conversion of calcium sulfide

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1560900A (en) *	1923-10-18	1925-11-10	West Virginia Pulp & Paper Co	Process of treating wate sodium monosulphite liquors
US1743080A (en) *	1926-03-22	1930-01-07	Bradley Mckeefe Corp	Manufacture of pulp and treatment of residual liquors, etc.
US3336535A (en) *	1966-02-14	1967-08-15	Varian Associates	Semiconductor microwave oscillator
US3366535A (en) *	1966-07-11	1968-01-30	William T Neiman	Process for regenerating waste liquor for reuse in kraft pulping operation
FR2550245B3 (fr) *	1983-08-04	1986-02-28	Nivelleau Bruniere Patrick M F	Procede de combustion des liqueurs noires residuaires de fabrication de pate cellulosique
SE456254B (sv) *	1987-02-12	1988-09-19	Korsnes Ab	Sett att rena gronlut i sulfatmassafabrikers kemikalieatervinning
CA2103066C (en) *	1991-05-13	2001-04-24	Patrik P. H. Lownertz	White liquor preparation and pulping process

1993
- 1993-06-04 SE SE9301921A patent/SE501347C2/sv unknown
1994
- 1994-06-03 WO PCT/SE1994/000537 patent/WO1994029516A1/en active IP Right Grant
- 1994-06-03 US US08/549,770 patent/US5667633A/en not_active Expired - Lifetime
1995
- 1995-12-01 FI FI955805A patent/FI110792B/sv not_active IP Right Cessation

Also Published As

Publication number	Publication date
FI955805A0 (sv)	1995-12-01
SE9301921L (sv)	1994-12-05
WO1994029516A1 (en)	1994-12-22
SE501347C2 (sv)	1995-01-23
SE9301921D0 (sv)	1993-06-04
US5667633A (en)	1997-09-16
FI110792B (sv)	2003-03-31

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Legal Events

Date	Code	Title	Description
2014-07-21	MA	Patent expired