ZA826506B - Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction - Google Patents

Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction

Info

Publication number
ZA826506B
ZA826506B ZA826506A ZA826506A ZA826506B ZA 826506 B ZA826506 B ZA 826506B ZA 826506 A ZA826506 A ZA 826506A ZA 826506 A ZA826506 A ZA 826506A ZA 826506 B ZA826506 B ZA 826506B
Authority
ZA
South Africa
Prior art keywords
oxygen delignification
controlled addition
alkaline chemicals
delignification reaction
chemicals
Prior art date
Application number
ZA826506A
Other languages
English (en)
Inventor
Larry D Markham
Vincent L Magnotta
Original Assignee
Black Clawson Co
Air Prod & Chem
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.)
Filing date
Publication date
Application filed by Black Clawson Co, Air Prod & Chem filed Critical Black Clawson Co
Publication of ZA826506B publication Critical patent/ZA826506B/xx

Links

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1068—Bleaching ; Apparatus therefor with O2

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ZA826506A 1981-10-27 1982-09-06 Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction ZA826506B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/315,672 US4431480A (en) 1981-10-27 1981-10-27 Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction

Publications (1)

Publication Number Publication Date
ZA826506B true ZA826506B (en) 1983-07-27

Family

ID=23225539

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA826506A ZA826506B (en) 1981-10-27 1982-09-06 Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction

Country Status (9)

Country Link
US (1) US4431480A (de)
EP (1) EP0078129A1 (de)
JP (1) JPS5887386A (de)
AU (1) AU8806982A (de)
BR (1) BR8206106A (de)
CA (1) CA1193807A (de)
FI (1) FI823455L (de)
NO (1) NO823465L (de)
ZA (1) ZA826506B (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA837927B (en) * 1983-05-23 1985-01-30 Process Evaluation Devel Thermomechanical digestion process using bleachants
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
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
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
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
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
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164044A (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
US5271805A (en) * 1992-03-20 1993-12-21 Stockel Ivar H Method and apparatus for waste paper treatment
US5609180A (en) * 1992-04-27 1997-03-11 Burlington Chemical Co., Inc. Liquid alkali system for fiber reactive dyeing
US5460696A (en) * 1993-08-12 1995-10-24 The Boc Group, Inc. Oxygen delignification method incorporating wood pulp mixing apparatus
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
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
BR9611836A (pt) * 1995-12-07 1999-03-09 Beloit Technologies Inc Deslignificação de oxigênio de pasta fluida de poupa de consistência média
US5843278A (en) * 1997-02-14 1998-12-01 Potlatch Corporation Method of producing soft paper products
SE522593C2 (sv) * 1999-07-06 2004-02-24 Kvaerner Pulping Tech System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material
DE10033978A1 (de) * 2000-07-13 2002-01-24 Voith Paper Patent Gmbh Verfahren sowie Vorrichtung zum Beladen von Fasern mit Calciumcarbonat
SE525773C2 (sv) * 2003-09-24 2005-04-26 Kvaerner Pulping Tech Metod och arrangemang för syrgasdelignifiering av cellulosamassa med pH-reglering i slutfasen
EP1813345A1 (de) * 2006-01-30 2007-08-01 Sulzer Pumpen Ag Verfahren und Vorrichtung zum steuern der Effiziens des Mischens
JP5779323B2 (ja) * 2010-07-05 2015-09-16 本田技研工業株式会社 リグノセルロース系バイオマスの糖化前処理方法
JP5713591B2 (ja) * 2010-07-05 2015-05-07 本田技研工業株式会社 リグノセルロース系バイオマスの糖化前処理装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE630337A (de) * 1962-03-30
FR1601408A (de) * 1967-06-20 1970-08-24
SE355614B (de) * 1970-05-13 1973-04-30 Mo Och Domsjoe Ab
GB1562493A (en) * 1976-07-28 1980-03-12 Pira Research Ass For The Pape Pulping of cellulosic material
US4198266A (en) * 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
SU730909A1 (ru) * 1977-12-20 1980-04-30 Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности Способ получени целлюлозы
US4248662A (en) * 1979-01-22 1981-02-03 The Black Clawson Company Oxygen pulping with recycled liquor
US4363697A (en) * 1979-12-03 1982-12-14 The Black Clawson Company Method for medium consistency oxygen delignification of pulp

Also Published As

Publication number Publication date
EP0078129A1 (de) 1983-05-04
NO823465L (no) 1983-04-28
US4431480A (en) 1984-02-14
JPS5887386A (ja) 1983-05-25
BR8206106A (pt) 1983-09-20
FI823455L (fi) 1983-04-28
CA1193807A (en) 1985-09-24
AU8806982A (en) 1983-05-05
FI823455A0 (fi) 1982-10-11

Similar Documents

Publication Publication Date Title
ZA826506B (en) Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction
DE3163157D1 (en) Method of treating acid liquid wastes
GB2021087B (en) Process and an apparatus for chemical reduction of the phosphate content of water
JPS54125702A (en) Treating method and apparatus of cellulosic small chips
GB2018612A (en) Apparatus and method for dewatering slag
ZA835925B (en) Method and apparatus for oxygen delignification
DE3171880D1 (en) Process and apparatus for chemical conversion of cellulose waste to glucose
ZA858415B (en) Method of controlling oxygen bleaching process
GB2132502B (en) Method and apparatus for the removal of oxygen from water
DE3572931D1 (en) Method of carrying out chemical dehydration reaction and an apparatus therefore
JPS5782102A (en) Apparatus and method of combining gassy hydrogen and oxygen
JPS56169889A (en) Oxygen bleaching method of cellulose pulp
ZA821923B (en) Method and apparatus for oxygen delignification
DE3168805D1 (en) Method of stabilizing hydrogen peroxide solutions
ZA824689B (en) Method of treating depression using azabicyclohexanes
EG19677A (en) Apparatus and method for highly efficient method of laudering textiles
NZ197068A (en) Method for oxygen gas bleaching of nitrogen dioxide-activated pulp
PT83860A (en) Method and apparatus for measuring the chemical content of bleaching liquor of cellulose pulp
JPS56135506A (en) Method of carrying out radical reaction
BG43636A1 (en) Method for operating of drying and ironing apparatus and apparatus itself
GB2151506B (en) Process and apparatus for injecting a substance into a reaction vessel
ZA816105B (en) Process and apparatus for the delignification of pulp
JPS5580054A (en) Qualitative and quantitative determination method of and apparatus for immunity reaction
JPS57161186A (en) Method and apparatus for bleaching chemical pulp
JPS57188309A (en) Method of bleaching wood