ES2069307T3 - PROCEDURE FOR TREATING LIGNOCELLULOSIC PAPER BAG AND APPARATUS FOR CARRYING OUT THE PROCEDURE. - Google Patents

PROCEDURE FOR TREATING LIGNOCELLULOSIC PAPER BAG AND APPARATUS FOR CARRYING OUT THE PROCEDURE.

Info

Publication number
ES2069307T3
ES2069307T3 ES91915560T ES91915560T ES2069307T3 ES 2069307 T3 ES2069307 T3 ES 2069307T3 ES 91915560 T ES91915560 T ES 91915560T ES 91915560 T ES91915560 T ES 91915560T ES 2069307 T3 ES2069307 T3 ES 2069307T3
Authority
ES
Spain
Prior art keywords
procedure
carrying
paper bag
treating lignocellulosic
washing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES91915560T
Other languages
Spanish (es)
Inventor
Lars Saaby Pedersen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novo Nordisk AS
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
Application granted granted Critical
Publication of ES2069307T3 publication Critical patent/ES2069307T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
ES91915560T 1990-08-24 1991-08-21 PROCEDURE FOR TREATING LIGNOCELLULOSIC PAPER BAG AND APPARATUS FOR CARRYING OUT THE PROCEDURE. Expired - Lifetime ES2069307T3 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES2069307T3 true ES2069307T3 (en) 1995-05-01

Family

ID=8109613

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91915560T Expired - Lifetime ES2069307T3 (en) 1990-08-24 1991-08-21 PROCEDURE FOR TREATING LIGNOCELLULOSIC PAPER BAG AND APPARATUS FOR CARRYING OUT THE PROCEDURE.

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) FI930803A0 (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
DK1399543T3 (en) 2001-06-06 2014-11-03 Novozymes As ENDO-BETA-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
DK1989302T3 (en) 2006-02-14 2018-07-23 Bp Corp North America Inc XYLANASES, NUCLEIC ACID CODING THEM AND PROCEDURES FOR THEIR PREPARATION AND USE
BRPI0820615B1 (en) 2007-12-06 2020-05-12 Novozymes A/S RECOMBINANT HOSTED MICROBIAL CELL, METHODS TO PRODUCE A POLYPEPTIDE HAVING ACETYL-XYLAN STERASE ACTIVITY, METHOD TO PRODUCE A PROTEIN AND METHOD OF DEGRADING A MATERIAL CONTAINING XYLAN
US8211665B2 (en) 2009-09-29 2012-07-03 Novozymes, Inc. Polypeptides having xylanase activity and polynucleotides encoding same
CA2780198A1 (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
ATE118842T1 (en) 1995-03-15
EP0547100B1 (en) 1995-02-22
DE69107620D1 (en) 1995-03-30
BR9106763A (en) 1993-06-29
EP0547100A1 (en) 1993-06-23
FI930803A (en) 1993-02-23
DK203490D0 (en) 1990-08-24
JPH05509137A (en) 1993-12-16
CA2090338A1 (en) 1992-02-25
FI930803A0 (en) 1993-02-23
NZ239501A (en) 1993-01-27
WO1992003608A1 (en) 1992-03-05

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