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FR2475084A1
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*
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1979-11-23 |
1981-08-07 |
Weyerhaeuser Co |
Delignification par l'ozone a faible consistance
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US4622100A
(en)
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1984-10-01 |
1986-11-11 |
International Paper Company |
Process for the delignification of lignocellulosic material with oxygen, ferricyanide, and a protector
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EP0428512B1
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1988-12-27 |
1994-11-17 |
Eskil Leannant Karlson |
Ozone generation by corona discharge at elevated pressures
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1990-10-26 |
1993-01-26 |
Union Camp Patent Holdings, Inc. |
Reactor for bleaching high consistency pulp with ozone
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US5211811A
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1989-02-15 |
1993-05-18 |
Union Camp Patent Holding, Inc. |
Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
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1989-02-15 |
1993-02-23 |
Union Camp Patent Holding, Inc. |
Process for high consistency oxygen delignification followed by ozone relignification
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1990-10-26 |
1995-12-05 |
Union Camp Patent Holding, Inc. |
Reactor for bleaching high consistency pulp with ozone
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1989-02-15 |
1995-04-25 |
Union Camp Patent Holding, Inc. |
Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
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1989-05-05 |
2000-11-28 |
International Paper Company |
Method of bleaching kraft pulp employing chlorine dioxide/chlorine-ozone bleach sequence
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1989-05-05 |
1990-09-25 |
International Paper Company |
Method of bleaching kraft pulp in a DZED sequence
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AU636173B2
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1989-10-30 |
1993-04-22 |
Lenzing Aktiengesellschaft |
Method for the chlorine-free bleaching of pulps
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1990-05-17 |
1992-11-17 |
Union Camp Patent Holding, Inc. |
Environmentally improved process for bleaching lignocellulosic materials with ozone
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US5441603A
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1990-05-17 |
1995-08-15 |
Union Camp Patent Holding, Inc. |
Method for chelation of pulp prior to ozone delignification
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US5164044A
(en)
*
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1990-05-17 |
1992-11-17 |
Union Camp Patent Holding, Inc. |
Environmentally improved process for bleaching lignocellulosic materials with ozone
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US5520783A
(en)
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1990-10-26 |
1996-05-28 |
Union Camp Patent Holding, Inc. |
Apparatus for bleaching high consistency pulp with ozone
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1990-10-26 |
1992-12-29 |
Union Camp Patent Holdings, Inc. |
Method of bleaching high consistency pulp with ozone
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EP0515303B2
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1991-05-24 |
2001-07-04 |
Union Camp Patent Holding, Inc. |
Method for ozone bleaching
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SE470234B
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1992-05-13 |
1993-12-13 |
Kamyr Ab |
Sätt vid blekning av cellulosahaltigt fibermaterial med ozon i närvaro av en organisk förening
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JP3121917B2
(ja)
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1992-07-08 |
2001-01-09 |
住友重機械工業株式会社 |
オゾンによるパルプ漂白方法
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FI951919L
(fi)
*
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1992-10-23 |
1995-06-20 |
Mac Millan Bloedel Ltd |
Parannettu otsonivalkaisu
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FR2708010B1
(fr)
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1993-07-21 |
1995-09-22 |
Degremont |
Procédé de blanchiment de pâtes à papier par l'ozone.
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US5554259A
(en)
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1993-10-01 |
1996-09-10 |
Union Camp Patent Holdings, Inc. |
Reduction of salt scale precipitation by control of process stream Ph and salt concentration
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CA2190503A1
(en)
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1994-06-02 |
1995-12-14 |
Marco Solinas |
Ozone bleaching
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US6315863B1
(en)
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1998-06-18 |
2001-11-13 |
Weyerhaeuser Company |
Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate
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SE514947C2
(sv)
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1998-09-09 |
2001-05-21 |
Valmet Fibertech Ab |
Blekning av massa med ozon innefattande oxalsyratillsats
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US6923887B2
(en)
*
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2003-02-21 |
2005-08-02 |
Alberta Research Council Inc. |
Method for hydrogen peroxide bleaching of pulp using an organic solvent in the bleaching medium
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CN104191483B
(zh)
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2014-08-08 |
2016-05-18 |
浙江工业大学 |
一种用臭氧对竹筷进行加工处理的方法
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