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Treatment of green or white liquors with gases
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CPC
D21C11/0071
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Parent Industries
D
TEXTILES PAPER
D21
Papermaking
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
Current Industry
D21C11/0071
Treatment of green or white liquors with gases
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Patents Grants
last 30 patents
Information
Patent Grant
Method and a system for producing an oil rich fraction from biomass
Patent number
12,123,137
Issue date
Oct 22, 2024
VALMET TECHNOLOGIES OY
Tero Joronen
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and a system for adjusting PH of green liquor dregs
Patent number
11,655,589
Issue date
May 23, 2023
VALMET TECHNOLOGIES OY
Aino Vettenranta
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for recausticizing green liquor
Patent number
10,011,948
Issue date
Jul 3, 2018
Mondi AG
Walter Ruef
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for obtaining strong white liquor and lime mud...
Patent number
10,011,947
Issue date
Jul 3, 2018
Valmet AB
Magnus Ingelman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Flash tank with compact steam discharge assembly
Patent number
8,685,205
Issue date
Apr 1, 2014
Andritz Inc.
Walter Edward Nellis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for kraft waste reclamation
Patent number
8,088,199
Issue date
Jan 3, 2012
S&S Lime, Inc.
Gary Allen Olsen
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for kraft waste reclamation
Patent number
6,719,879
Issue date
Apr 13, 2004
S & S Lime, Inc.
Gary Allen Olsen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Oxidized white liquor in an oxygen delignification process
Patent number
6,691,358
Issue date
Feb 17, 2004
AGA Aktiebolag
Anders Tor Jörgen Engström
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Quench vessel for recovering chemicals and energy from spent liquors
Patent number
6,062,547
Issue date
May 16, 2000
Kvaerner Pulping AB
Bengt Nilsson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method to regenerate gas mixture in ozone-bleaching process
Patent number
6,059,925
Issue date
May 9, 2000
AGA Aktiebolag
Anna Tigerstrom
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Reactor mixing assembly
Patent number
6,036,355
Issue date
Mar 14, 2000
Quantum Technologies, Inc.
Robert Yant
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for making sulfur enhanced undigested cellulosic fiber mate...
Patent number
5,976,321
Issue date
Nov 2, 1999
Kvaerner Pulping AB
Bengt Nilsson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for gasifying cellulose spent liquor to produce superheated...
Patent number
5,814,189
Issue date
Sep 29, 1998
Kvaerner Pulping AB
Lars Stigsson
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Process for treating sulphur-containing spent liquor using multi-st...
Patent number
5,759,345
Issue date
Jun 2, 1998
Austrian Energy & Environment SGP/Waagner Biro GmbH
Michael Bobik
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of seperating sulphur compounds
Patent number
5,556,605
Issue date
Sep 17, 1996
Chemrec Aktiebolag
Lars Stigsson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of affecting the sulphur content and/or sulphur compound com...
Patent number
5,518,582
Issue date
May 21, 1996
A. Ahlstrom Corporation
Kaj Henricson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing fully oxidized white liquor
Patent number
5,500,085
Issue date
Mar 19, 1996
Air Products and Chemicals, Inc.
Vincent L. Magnotta
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Selective white liquor oxidation
Patent number
5,382,322
Issue date
Jan 17, 1995
Air Products and Chemicals, Inc.
Vincent L. Magnotta
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of treating material containing sodium sulphate and/or sodiu...
Patent number
5,328,563
Issue date
Jul 12, 1994
A. Ahlstrom Corporation
Kaj Henricson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Multi-level sulfide content white liquor production and utilization...
Patent number
5,326,433
Issue date
Jul 5, 1994
Ahlstrom Recovery Inc.
Rolf Ryham
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of oxidizing sulfide-containing liquor
Patent number
4,855,123
Issue date
Aug 8, 1989
Mitsubishi Paper Mills, Ltd.
Masayuki Suzuki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of recovering chemicals from chloride-containing green liquor
Patent number
4,561,934
Issue date
Dec 31, 1985
Oy Tampella AB
Pertti K. Rimpi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for the preparation of a sodium sulphite containing liquor
Patent number
4,481,074
Issue date
Nov 6, 1984
Rauma-Rapola Oy
Ismo Reilama
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for recovering sodium chemicals from green liquor and flue g...
Patent number
4,470,957
Issue date
Sep 11, 1984
Oy Tampella Ab
Pertti Rimpi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for maintaining a low sodium chloride content in recycled s...
Patent number
4,253,911
Issue date
Mar 3, 1981
Mo och Domsjo Aktiebolag
Per A. R. Hillstrom
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Methods for recovery and recycling of chemicals from sodium sulfite...
Patent number
4,148,684
Issue date
Apr 10, 1979
MEI Systems Inc.
William G. Farin
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for separating sulphur in the form of hydrogen sulphide fro...
Patent number
4,049,787
Issue date
Sep 20, 1977
Oy Tampella AB
Hakan Wilhelm Romantschuk
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3841961
Patent number
3,841,961
Issue date
Oct 15, 1974
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3826710
Patent number
3,826,710
Issue date
Jul 30, 1974
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3402992
Patent number
3,402,992
Issue date
Sep 24, 1968
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
A METHOD AND A SYSTEM FOR PRODUCING AN OIL RICH FRACTION FROM BIOMASS
Publication number
20230235507
Publication date
Jul 27, 2023
VALMET TECHNOLOGIES OY
Tero JORONEN
C01 - INORGANIC CHEMISTRY
Information
Patent Application
A METHOD AND A SYSTEM FOR ADJUSTING PH OF GREEN LIQUOR DREGS
Publication number
20220275578
Publication date
Sep 1, 2022
VALMET TECHNOLOGIES OY
Aino VETTENRANTA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR POLYSULFIDE PRODUCTION IN A KRAFT PULP MILL
Publication number
20180112355
Publication date
Apr 26, 2018
VALMET AB
Stefan Antonsson
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
DYNAMIC MIXING ASSEMBLY WITH IMPROVED BAFFLE DESIGN
Publication number
20160121276
Publication date
May 5, 2016
Quantum Technologies, Inc.
Peter A. Piechuta
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD AND APPARATUS FOR OBTAINING STRONG WHITE LIQUOR AND LIME MUD...
Publication number
20150225895
Publication date
Aug 13, 2015
VALMET AB
Magnus Ingelman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FLASH TANK WITH COMPACT STEAM DISCHARGE ASSEMBLY
Publication number
20140034260
Publication date
Feb 6, 2014
Walter Edward NELLIS
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR KRAFT WASTE RECLAMATION
Publication number
20100189614
Publication date
Jul 29, 2010
Gary Allen Olsen
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Method for kraft waste reclamation
Publication number
20070051482
Publication date
Mar 8, 2007
Gary Allen Olsen
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Method for kraft waste reclamation
Publication number
20040168785
Publication date
Sep 2, 2004
Gary Allen Olsen
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Kraft waste reclamation and methodology
Publication number
20030053946
Publication date
Mar 20, 2003
Gary Allen Olsen
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Kraft waste reclamation methodology
Publication number
20020046819
Publication date
Apr 25, 2002
Gary Allen Olsen
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Kraft waste reclamation methodology
Publication number
20010030029
Publication date
Oct 18, 2001
Gary Allen Olsen
C01 - INORGANIC CHEMISTRY