BR8903649A - Processo para aperfeicoamento da capacidade de drenagem de polpa mecanica - Google Patents

Processo para aperfeicoamento da capacidade de drenagem de polpa mecanica

Info

Publication number
BR8903649A
BR8903649A BR898903649A BR8903649A BR8903649A BR 8903649 A BR8903649 A BR 8903649A BR 898903649 A BR898903649 A BR 898903649A BR 8903649 A BR8903649 A BR 8903649A BR 8903649 A BR8903649 A BR 8903649A
Authority
BR
Brazil
Prior art keywords
pulp
improving
mechanical pulp
enzyme
dissolving
Prior art date
Application number
BR898903649A
Other languages
English (en)
Portuguese (pt)
Inventor
Sakari Karsila
Iikka Kruus
Outi Puuppo
Original Assignee
Cultor Oy
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 Cultor Oy filed Critical Cultor Oy
Publication of BR8903649A publication Critical patent/BR8903649A/pt

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Materials For Medical Uses (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Non-Adjustable Resistors (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Noodles (AREA)
BR898903649A 1988-07-22 1989-07-24 Processo para aperfeicoamento da capacidade de drenagem de polpa mecanica BR8903649A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI883491A FI81394C (fi) 1988-07-22 1988-07-22 Foerfarande foer behandling av massa med enzymer

Publications (1)

Publication Number Publication Date
BR8903649A true BR8903649A (pt) 1990-03-13

Family

ID=8526856

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898903649A BR8903649A (pt) 1988-07-22 1989-07-24 Processo para aperfeicoamento da capacidade de drenagem de polpa mecanica

Country Status (9)

Country Link
EP (1) EP0351655B1 (de)
AT (1) ATE82781T1 (de)
BR (1) BR8903649A (de)
CA (1) CA1339605C (de)
DE (1) DE68903608T2 (de)
ES (1) ES2037341T3 (de)
FI (1) FI81394C (de)
GR (1) GR3006466T3 (de)
NZ (1) NZ229811A (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604198B1 (fr) * 1986-09-22 1989-07-07 Du Pin Cellulose Procede de traitement d'une pate papetiere par une solution enzymatique.
FI87372C (fi) * 1989-03-30 1992-12-28 Genencor Int Europ Foerfarande foer framstaellning av fluffmassa med foerbaettrad rivbarhet
FI92414B (fi) * 1989-11-27 1994-07-29 Enso Gutzeit Oy Menetelmä massan valmistamiseksi
DK80390D0 (de) * 1990-03-29 1990-03-29 Novo Nordisk As
US5837515A (en) * 1990-05-16 1998-11-17 Alko-Yhtiot Oy Enzyme preparations and methods for their production
GB9018426D0 (en) * 1990-08-22 1990-10-03 Sandoz Ltd Improvements in or relating to novel compounds
EP0486125A1 (de) * 1990-11-13 1992-05-20 JAPAN PULP & PAPER RESEARCH INSTITUTE, INC. Lignocellulolytische Zusammensetzung, Verfahren zu deren Herstellung und deren Verwendung
US5616215A (en) * 1991-04-19 1997-04-01 Novo Nordisk A/S Method of making paper from pulp treated with lipase and an aluminum salt
US5169497A (en) * 1991-10-07 1992-12-08 Nalco Chemical Company Application of enzymes and flocculants for enhancing the freeness of paper making pulp
FI92500C (fi) * 1993-03-03 1994-11-25 Valtion Teknillinen Menetelmä mekaanisen massan valmistamiseksi
US5935836A (en) * 1994-07-29 1999-08-10 Rohm Enzyme Finland Oy Actinomadura xylanase sequences and methods of use
US5871730A (en) * 1994-07-29 1999-02-16 Universite De Sherbrooke Thermostable xylanase DNA, protein and methods of use
US7816129B2 (en) 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
US6300114B1 (en) 1994-07-29 2001-10-09 Rohm Enzyme Finland Oy Sequences of xylanase and xylanase expression vectors
US5725732A (en) * 1994-11-18 1998-03-10 P. H. Glatfelter Company Process for treating hardwood pulp with an enzyme mixture to reduce vessel element picking
US5770012A (en) * 1994-11-18 1998-06-23 P. H. Glatfelter Co. Process for treating paper machine stock containing bleached hardwood pulp with an enzyme mixture to reduce vessel element picking
GB2296513B (en) * 1994-12-24 1998-07-29 Ciba Geigy Ag Paper treatment
US5961735A (en) * 1995-06-21 1999-10-05 North Carolina State University Method of cleaning papermaking felts with enzymes
WO1998006892A1 (en) * 1996-08-16 1998-02-19 International Paper Company Enzymatic freeness enhancement
US6939437B1 (en) 1999-11-19 2005-09-06 Buckman Laboratories International, Inc. Paper making processes using enzyme and polymer combinations
US20050000666A1 (en) * 2003-05-06 2005-01-06 Novozymes A/S Use of hemicellulase composition in mechanical pulp production
CN104631176B (zh) * 2015-02-09 2016-06-01 绍兴文理学院 一种黄麻纤维素的制备方法
CN104631178B (zh) * 2015-02-09 2016-08-24 绍兴文理学院 一种粗制纤维素的深度纯化方法
CN104631175B (zh) * 2015-02-09 2016-06-01 绍兴文理学院 一种短流程黄麻纤维素的制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557894B1 (fr) * 1984-01-10 1986-12-12 Centre Tech Ind Papier Procede de traitement de pates papetieres par une solution enzymatique favorisant la fibrillation et pates ainsi traitees.
FR2604198B1 (fr) * 1986-09-22 1989-07-07 Du Pin Cellulose Procede de traitement d'une pate papetiere par une solution enzymatique.

Also Published As

Publication number Publication date
FI883491A0 (fi) 1988-07-22
FI81394B (fi) 1990-06-29
NZ229811A (en) 1991-03-26
DE68903608D1 (de) 1993-01-07
DE68903608T2 (de) 1993-04-01
ES2037341T3 (es) 1993-06-16
GR3006466T3 (de) 1993-06-21
EP0351655B1 (de) 1992-11-25
CA1339605C (en) 1997-12-30
ATE82781T1 (de) 1992-12-15
EP0351655A1 (de) 1990-01-24
FI81394C (fi) 1993-07-20
FI883491A (fi) 1990-01-23

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Legal Events

Date Code Title Description
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FG Letter patent granted
KD1 Payment of complementary fee requested
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 24/07/2004