SE381897C
(sv)
*
|
1973-11-23 |
1977-05-23 |
Skogegarnas Ind Ab |
Sett for satsvis alkalisk massakokning i kombination med kontinuerlig syredelignifiering
|
US4096028A
(en)
*
|
1976-11-26 |
1978-06-20 |
Nalco Chemical Company |
Feed forward control of dissolved solids in a countercurrent separation and washing zone
|
SE7802789L
(sv)
*
|
1978-03-10 |
1979-09-11 |
Sunds Ab |
Sett vid framstellning av magnesiumsulfitmassa
|
SE448889B
(sv)
*
|
1985-11-06 |
1987-03-23 |
Sunds Defibrator |
Sett for behandling av returpapper
|
SE465730C
(sv)
*
|
1988-03-17 |
2001-10-08 |
Kvaerner Pulping Tech |
Sätt vid delignifiering av fiberhaltig cellulosamassa
|
US5211811A
(en)
*
|
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
|
US5085734A
(en)
*
|
1989-02-15 |
1992-02-04 |
Union Camp Patent Holding, Inc. |
Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
|
US5188708A
(en)
*
|
1989-02-15 |
1993-02-23 |
Union Camp Patent Holding, Inc. |
Process for high consistency oxygen delignification followed by ozone relignification
|
US5217574A
(en)
*
|
1989-02-15 |
1993-06-08 |
Union Camp Patent Holdings Inc. |
Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
|
US5409570A
(en)
*
|
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
|
US5525195A
(en)
*
|
1989-02-15 |
1996-06-11 |
Union Camp Patent Holding, Inc. |
Process for high consistency delignification using a low consistency alkali pretreatment
|
US5173153A
(en)
*
|
1991-01-03 |
1992-12-22 |
Union Camp Patent Holding, Inc. |
Process for enhanced oxygen delignification using high consistency and a split alkali addition
|
US5164044A
(en)
*
|
1990-05-17 |
1992-11-17 |
Union Camp Patent Holding, Inc. |
Environmentally improved process for bleaching lignocellulosic materials with ozone
|
US5164043A
(en)
*
|
1990-05-17 |
1992-11-17 |
Union Camp Patent Holding, Inc. |
Environmentally improved process for bleaching lignocellulosic materials with ozone
|
US5441603A
(en)
*
|
1990-05-17 |
1995-08-15 |
Union Camp Patent Holding, Inc. |
Method for chelation of pulp prior to ozone delignification
|
SE470538C
(sv)
*
|
1992-12-02 |
1996-02-26 |
Kvaerner Pulping Tech |
Sätt vid blekning av massa utan användning av klorhaltiga kemikalier
|
SE501613C2
(sv)
*
|
1993-08-03 |
1995-03-27 |
Kvaerner Pulping Tech |
Sätt vid integrering av blekning och återvinning vid framställning av massa
|
US5554259A
(en)
*
|
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
|
US6210527B1
(en)
|
1994-03-14 |
2001-04-03 |
The Boc Group, Inc. |
Pulp bleaching method wherein an ozone bleaching waste stream is scrubbed to form an oxygen containing stream
|
SE9401769L
(sv)
*
|
1994-05-24 |
1995-11-25 |
Nils Mannbro |
Flisimpregnering vid pappersmassakokning med sulfidiskt alkali
|
US5672247A
(en)
*
|
1995-03-03 |
1997-09-30 |
Union Camp Patent Holding, Inc. |
Control scheme for rapid pulp delignification and bleaching
|
US5736004A
(en)
*
|
1995-03-03 |
1998-04-07 |
Union Camp Patent Holding, Inc. |
Control scheme for rapid pulp delignification and bleaching
|
US6514380B1
(en)
*
|
1995-03-08 |
2003-02-04 |
Andritz Oy |
Treatment of chemical pulp
|