[go: up one dir, main page]

BR9106763A - PROCESS AND APPLIANCES FOR TREATMENT OF LIGNOCELLULOSIC PASTE - Google Patents

PROCESS AND APPLIANCES FOR TREATMENT OF LIGNOCELLULOSIC PASTE

Info

Publication number
BR9106763A
BR9106763A BR919106763A BR9106763A BR9106763A BR 9106763 A BR9106763 A BR 9106763A BR 919106763 A BR919106763 A BR 919106763A BR 9106763 A BR9106763 A BR 9106763A BR 9106763 A BR9106763 A BR 9106763A
Authority
BR
Brazil
Prior art keywords
treatment
appliances
washing
lignocellulosic
paste
Prior art date
Application number
BR919106763A
Other languages
Portuguese (pt)
Inventor
Lars Saaby Pedersen
Original Assignee
Novo Nordisk As
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 Novo Nordisk As filed Critical Novo Nordisk As
Publication of BR9106763A publication Critical patent/BR9106763A/en

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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

A process for treatment of lignocellulosic pulp comprising a multistage washing of the unbleached kraft brown stock and a xylanase treatment. The xylanase treatment is carried out in a holding tank introduced upstream the first washing unit or downstream one or more of the other washing units except for the last washing unit.
BR919106763A 1990-08-24 1991-08-21 PROCESS AND APPLIANCES FOR TREATMENT OF LIGNOCELLULOSIC PASTE BR9106763A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK203490A DK203490D0 (en) 1990-08-24 1990-08-24 PROCEDURE FOR TREATING LIGNOCELLULOS PULP AND APPARATUS FOR PERFORMING THE PROCESS
PCT/DK1991/000239 WO1992003608A1 (en) 1990-08-24 1991-08-21 Process for treatment of lignocellulosic pulp and apparatus for performance of the process

Publications (1)

Publication Number Publication Date
BR9106763A true BR9106763A (en) 1993-06-29

Family

ID=8109613

Family Applications (1)

Application Number Title Priority Date Filing Date
BR919106763A BR9106763A (en) 1990-08-24 1991-08-21 PROCESS AND APPLIANCES FOR TREATMENT OF LIGNOCELLULOSIC PASTE

Country Status (11)

Country Link
EP (1) EP0547100B1 (en)
JP (1) JPH05509137A (en)
AT (1) ATE118842T1 (en)
BR (1) BR9106763A (en)
CA (1) CA2090338A1 (en)
DE (1) DE69107620D1 (en)
DK (1) DK203490D0 (en)
ES (1) ES2069307T3 (en)
FI (1) FI930803A7 (en)
NZ (1) NZ239501A (en)
WO (1) WO1992003608A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1633496A (en) 2001-06-06 2005-06-29 诺和酶股份有限公司 Endo-β-1,4-glucanase
EA200500019A1 (en) 2002-06-14 2006-06-30 Дайверса Корпорейшн XYLANASE, ENCODING THEIR NUCLEIC ACIDS AND METHODS OF THEIR RECEIVING AND APPLICATION
EP2548956A1 (en) 2006-02-14 2013-01-23 Verenium Corporation Xylanases, nucleic acids encoding them and methods for making and using them
WO2009073709A1 (en) 2007-12-06 2009-06-11 Novozymes A/S Polypeptides having acetylxylan esterase activity and polynucleotides encoding same
US8211665B2 (en) 2009-09-29 2012-07-03 Novozymes, Inc. Polypeptides having xylanase activity and polynucleotides encoding same
WO2011057083A1 (en) 2009-11-06 2011-05-12 Novozymes, Inc. Polypeptides having xylanase activity and polynucleotides encoding same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68914112T2 (en) * 1988-11-23 1994-08-04 Sandoz Ag Use of enzymes from Aureobasidium pullulans for pulp bleaching.
FI90888B (en) * 1989-02-14 1993-12-31 Enso Gutzeit Oy Method for bleaching cellulose pulp

Also Published As

Publication number Publication date
FI930803A0 (en) 1993-02-23
ATE118842T1 (en) 1995-03-15
WO1992003608A1 (en) 1992-03-05
EP0547100A1 (en) 1993-06-23
NZ239501A (en) 1993-01-27
FI930803L (en) 1993-02-23
EP0547100B1 (en) 1995-02-22
JPH05509137A (en) 1993-12-16
CA2090338A1 (en) 1992-02-25
DE69107620D1 (en) 1995-03-30
ES2069307T3 (en) 1995-05-01
DK203490D0 (en) 1990-08-24
FI930803A7 (en) 1993-02-23

Similar Documents

Publication Publication Date Title
DE3468454D1 (en) Process for the treatment of cellulosic materials with oxidising agents
SE9503595D0 (en) Method of treating cellulose pulps
PE56394A1 (en) CELLULOSE PASTE THAT HAS AN IMPROVED SOFTNESS POTENTIAL AND METHOD FOR PREPARING SUCH PASTA
BR9007533A (en) PROCESS FOR THE MANUFACTURE OF TARGETED PULP AND TO DESIGNIFY AND TARGET A LIGNOSCELULOSIC MATERIAL
BR9007608A (en) PROCESS FOR THE TREATMENT OF LIGNOCELLULOSIC CHEMICAL PULP
NZ235679A (en) Bleaching lignocellulosic pulp using (a) treatment with xylanase and (b) one or more chemical bleaching stages
BR9203126A (en) PROCESS FOR THE PRODUCTION OF KRAFT PULP AND EQUIPMENT FOR THE TREATMENT OF COMBINED FIBROUS CELLULOSIC MATERIAL
BR9103446A (en) METHOD AND APPLIANCE FOR THE TREATMENT OF FIBROUS MATERIAL WITH A GASEOUS REAGENT, APPLIANCE FOR THE TREATMENT OF FIBROUS MATERIAL WITH A GASEOUS REAGENT AND APPLIANCE FOR DRAINING WOOD PULP WITH A GASEOUS REAGENT
FI973649A0 (en) Treatment of fibrous material used in the manufacture of cellulose pulp
BR9106763A (en) PROCESS AND APPLIANCES FOR TREATMENT OF LIGNOCELLULOSIC PASTE
NZ238830A (en) Continuous two stage bleaching process of pulp by treating portions of the pulp in the latter stages with peroxide; paper products and pulp produced thereby
FI96784B (en) Process for bleaching chemical cellulose pulp to produce bleached absorbent pulp
BR9106597A (en) DEVICE FOR WASHING WOOL PULP FIBER, PRESSURIZED DYNAMIC PULP WASHER AND PROCESS AND APPLIANCE FOR WASHING CELLULUS PULP FIBERS
BR9206860A (en) Enzymatic process and preparation for cellulose pulp treatment
RU93005264A (en) METHOD OF COOKING PULP
ID22210A (en) MAKING VEGETABLE SILK INGREDIENTS
SE9401628D0 (en) Oxygen delignification procedure
BR9406763A (en) Chemical paper pulp treatment process
FI941615A0 (en) Method for the enzymatic treatment of lignocellulosic materials, in particular cellulosic pulps
BR9406193A (en) Process for bleaching pulp of cellulosic fiber material without the use of chlorine
DE59704964D1 (en) Process for the production of bleached special pulps
SE9500926L (en) Pulp bleaching process
BR9202472A (en) METHOD OF WASHING CELLULOSE CHEMICAL PULP IN MULTIPLE STAGES
DE60137856D1 (en) LOSS METHOD

Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law