Other features in bleaching processes

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CPC
D21C9/1026

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DTEXTILES PAPER D21Papermaking D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR D21C9/00After-treatment of cellulose pulp

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D21C9/1026Other features in bleaching processes

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Softwood kraft fiber having an improved α-cellulose content and its...
- Patent number 10,151,064
- Issue date Dec 11, 2018
- GP Cellulose GmbH
- Arthur J. Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of making a highly functional, low viscosity kraft fiber usi...
- Patent number 10,138,598
- Issue date Nov 27, 2018
- GP Cellulose GmbH
- Arthur J. Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for the use of oxidants for microbial control under reducing...
- Patent number 8,808,500
- Issue date Aug 19, 2014
- Lonza Inc.
- Kevin Janak
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Thermostable enzymes for the hydrolysis of mannan-containing polysa...
- Patent number 8,357,518
- Issue date Jan 22, 2013
- The Board of Trustees of the University of Illinois
- Yejun Han
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for removing lignin from water
- Patent number 7,794,604
- Issue date Sep 14, 2010
- Kemira Oyj
- Heikki Palonen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for manufacturing bleached mechanical and chemithermomechani...
- Patent number 7,736,463
- Issue date Jun 15, 2010
- Holmen Aktiebolag
- Eric Yijing Zhang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for treating kraft pulp with optical brighteners after chlor...
- Patent number 7,638,016
- Issue date Dec 29, 2009
- International Paper Company
- Xuan Truong Nguyen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for removing potassium from ash produced in a kraft pulping...
- Patent number 7,553,394
- Issue date Jun 30, 2009
- Nippon Rensui Co.
- Saburo Furusho
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of bleaching cellulose pulp with a main conduit for wash liq...
- Patent number 7,374,637
- Issue date May 20, 2008
- GL&V Management Hungary Kft.
- Vidar Snekkenes
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the oxygen delignification of pulp in two stages with h...
- Patent number 6,841,036
- Issue date Jan 11, 2005
- Kvaerner Pulping AB
- Hakan Dahllof
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
System for the oxygen delignification of pulp consisting of lignoce...
- Patent number 6,808,596
- Issue date Oct 26, 2004
- Kvaerner Pulping AB
- Hakan Dahllof
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of improving the brightness of calcium carbonate filled paper
- Patent number 6,602,385
- Issue date Aug 5, 2003
- Minerals Technologies Inc.
- Donald Kendall Drummond
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the oxygen delignification of pulp in two stages with h...
- Patent number 6,391,152
- Issue date May 21, 2002
- Kvaerner Pulping AB
- Hakan Dahllof
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Chlorine dioxide pulp bleaching process having reduced barium scali...
- Patent number 6,315,863
- Issue date Nov 13, 2001
- Weyerhaeuser Company
- David B. Jack
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Acid treatment of pulp at high temperature prior to chlorine dioxid...
- Patent number 6,306,253
- Issue date Oct 23, 2001
- Andritz-Ahlstrom Oy
- Kaj O. Henricson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of producing a bleached pulp with chlorine dioxide under a p...
- Patent number 6,235,153
- Issue date May 22, 2001
- Oji Paper Co., Ltd.
- Yosuke Uchida
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Oxygen delignification of pulp in two stages with low pressure stea...
- Patent number 6,221,207
- Issue date Apr 24, 2001
- Valmet Fibertech Aktiebolag
- Kjell Forslund
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Bleaching cellulose pulp having cleanliness which varies significan...
- Patent number 6,153,300
- Issue date Nov 28, 2000
- Ahlstrom Machinery, Inc.
- C. Bertil Stromberg
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for peroxide bleaching of chemical pulp in a pressurized bl...
- Patent number 6,149,766
- Issue date Nov 21, 2000
- Kvaerner Pulping Technologies, A/B
- Petter Tibbling
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the preparation of delignified and bleached chemical pa...
- Patent number 6,019,870
- Issue date Feb 1, 2000
- Elf Atochem S.A.
- Michel Devic
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for recycling bleach plant filtrate
- Patent number 5,938,892
- Issue date Aug 17, 1999
- Champion International Corporation
- Gerald E. Maples
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Treatment of hazardous wastewater
- Patent number 5,908,560
- Issue date Jun 1, 1999
- Robert H. Elliott
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for manufacturing bleached pulp including recycling
- Patent number 5,853,535
- Issue date Dec 29, 1998
- Champion International Corporation
- Gerald E. Maples
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of determing the organic content in pulp and paper mill effu...
- Patent number 5,842,150
- Issue date Nov 24, 1998
- Eka Chemicals AB
- Lars Renberg
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of removing metal ions dissolved in the bleach plant waste w...
- Patent number 5,741,398
- Issue date Apr 21, 1998
- Sunds Defibrator Industries Aktiebolag
- Ulf Germg.ang.rd
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Avoidance of salt scaling by acidic pulp washing process
- Patent number 5,728,264
- Issue date Mar 17, 1998
- Union Camp Patent Holding, Inc.
- George Pangalos
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Ozone bleaching with an organic solvent and mineral acid
- Patent number 5,685,953
- Issue date Nov 11, 1997
- MacMillan Bloedel Limited
- Marco Solinas
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for peroxide bleaching of chemical pulp in a pressurized bl...
- Patent number 5,571,377
- Issue date Nov 5, 1996
- Kvaerner Pulping Technologies AB
- Petter Tibbling
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of controlling pressurized ozone to a pulp delignification r...
- Patent number 5,567,274
- Issue date Oct 22, 1996
- Ahlstrom Machinery Inc.
- Erwin D. Funk
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Treatment of hazardous waste water
- Patent number 5,433,858
- Issue date Jul 18, 1995
- Robert H. Elliott
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
CIGARETTE WRAPPER USING NANOCELLULOSE FILM
- Publication number 20240365842
- Publication date Nov 7, 2024
- KT&G Corporation
- Sungmin MOON
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SCALE INHIBITION FOR PULP DIGESTERS
- Publication number 20240247439
- Publication date Jul 25, 2024
- ECOLAB USA INC.
- John Matthew CHUDOMEL
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SELECTIVE REMOVAL OF K+ AND CL- FROM RECOVERY BOILER ELECTROSTATIC...
- Publication number 20190112759
- Publication date Apr 18, 2019
- L'air Liquide, Societe Anonyme Pour L'etude et L'Exploitation Des Procedes Ge...
- Arnaldo Manuel ESTIMA DE OLIVEIRA ARAUJO
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Bleach Stabilizer Compositions And Methods
- Publication number 20140202646
- Publication date Jul 24, 2014
- Buckman Laboratories International, Inc.
- Donald G. Jenkins
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for the Use of Oxidants for Microbial Control Under Reducing...
- Publication number 20130302443
- Publication date Nov 14, 2013
- Lonza Inc.
- Kevin Janak
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
THERMOSTABLE ENZYMES FOR THE HYDROLYSIS OF MANNAN-CONTAINING POLYSA...
- Publication number 20110294166
- Publication date Dec 1, 2011
- THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
- Yejun HAN
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Application
PULP AND PAPER HAVING INCREASED BRIGHTNESS
- Publication number 20100252213
- Publication date Oct 7, 2010
- International Paper Company
- Xuan Troung Nguyen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method For Removing Light From Water
- Publication number 20080149568
- Publication date Jun 26, 2008
- KEMIRA OYJ
- Heikki Palonen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Pulp and paper having increased brightness
- Publication number 20070193707
- Publication date Aug 23, 2007
- Xuan Truong Nguyen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Process for producing kraft pulp
- Publication number 20060219375
- Publication date Oct 5, 2006
- Saburo Furusho
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
System and method for oxygen delignification of pulp made for ligno...
- Publication number 20060169429
- Publication date Aug 3, 2006
- Hakan Dahloff
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method of bleaching cellulose pulp and bleaching line therefore
- Publication number 20060090864
- Publication date May 4, 2006
- Vidar Snekkenes
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method of bleaching cellulose pulp and bleaching line therefore
- Publication number 20060090865
- Publication date May 4, 2006
- Vidar Snekkenes
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Methods for making carboxylated pulp fibers
- Publication number 20050028953
- Publication date Feb 10, 2005
- David E. Severeid
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method of controlling microorganisms in hydrogen peroxide pulp blea...
- Publication number 20040200588
- Publication date Oct 14, 2004
- Jayne M.A. Walker
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for brightening mechanical pulps
- Publication number 20030062138
- Publication date Apr 3, 2003
- Maurice Joseph Albert Hache
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
System and process for the oxygen delignification of pulp consistin...
- Publication number 20020108729
- Publication date Aug 15, 2002
- Hakan Dahllof
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD OF TREATING CHEMICAL CELLULOSE PULP
- Publication number 20020056533
- Publication date May 16, 2002
- TAPANI VUORINEN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Oxygen delignification of pulp in two stages
- Publication number 20010050152
- Publication date Dec 13, 2001
- Kjell Forslund
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Acid treatment of pulp at high temperature in connection with bleac...
- Publication number 20010020521
- Publication date Sep 13, 2001
- ANDRITZ-AHLSTROM INC.
- Kaj O. Henricson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
ACID TREATMENT OF PULP AT HIGH TEMPERATURE PRIOR RO CHRLORINE DIOXI...
- Publication number 20010004005
- Publication date Jun 21, 2001
- KAJ O. HENRICSON
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Other features in bleaching processes

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Softwood kraft fiber having an improved α-cellulose content and its...

Method of making a highly functional, low viscosity kraft fiber usi...

Method for the use of oxidants for microbial control under reducing...

Thermostable enzymes for the hydrolysis of mannan-containing polysa...

Method for removing lignin from water

Method for manufacturing bleached mechanical and chemithermomechani...

Method for treating kraft pulp with optical brighteners after chlor...

Method for removing potassium from ash produced in a kraft pulping...

Method of bleaching cellulose pulp with a main conduit for wash liq...

Process for the oxygen delignification of pulp in two stages with h...

System for the oxygen delignification of pulp consisting of lignoce...

Method of improving the brightness of calcium carbonate filled paper

Process for the oxygen delignification of pulp in two stages with h...

Chlorine dioxide pulp bleaching process having reduced barium scali...

Acid treatment of pulp at high temperature prior to chlorine dioxid...

Method of producing a bleached pulp with chlorine dioxide under a p...

Oxygen delignification of pulp in two stages with low pressure stea...

Bleaching cellulose pulp having cleanliness which varies significan...

Process for peroxide bleaching of chemical pulp in a pressurized bl...

Process for the preparation of delignified and bleached chemical pa...

Process for recycling bleach plant filtrate

Treatment of hazardous wastewater

Process for manufacturing bleached pulp including recycling

Method of determing the organic content in pulp and paper mill effu...

Method of removing metal ions dissolved in the bleach plant waste w...

Avoidance of salt scaling by acidic pulp washing process

Ozone bleaching with an organic solvent and mineral acid

Process for peroxide bleaching of chemical pulp in a pressurized bl...

Method of controlling pressurized ozone to a pulp delignification r...

Treatment of hazardous waste water

Patents Applicationslast 30 patents

CIGARETTE WRAPPER USING NANOCELLULOSE FILM

SCALE INHIBITION FOR PULP DIGESTERS

SELECTIVE REMOVAL OF K+ AND CL- FROM RECOVERY BOILER ELECTROSTATIC...

Bleach Stabilizer Compositions And Methods

Method for the Use of Oxidants for Microbial Control Under Reducing...

THERMOSTABLE ENZYMES FOR THE HYDROLYSIS OF MANNAN-CONTAINING POLYSA...

PULP AND PAPER HAVING INCREASED BRIGHTNESS

Method For Removing Light From Water

Pulp and paper having increased brightness

Process for producing kraft pulp

System and method for oxygen delignification of pulp made for ligno...

Method of bleaching cellulose pulp and bleaching line therefore

Method of bleaching cellulose pulp and bleaching line therefore

Methods for making carboxylated pulp fibers

Method of controlling microorganisms in hydrogen peroxide pulp blea...

Method for brightening mechanical pulps

System and process for the oxygen delignification of pulp consistin...

METHOD OF TREATING CHEMICAL CELLULOSE PULP

Oxygen delignification of pulp in two stages

Acid treatment of pulp at high temperature in connection with bleac...

ACID TREATMENT OF PULP AT HIGH TEMPERATURE PRIOR RO CHRLORINE DIOXI...