BR8903649A - Processo para aperfeicoamento da capacidade de drenagem de polpa mecanica - Google Patents
Processo para aperfeicoamento da capacidade de drenagem de polpa mecanicaInfo
- 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
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)
- Materials For Medical Uses (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Non-Adjustable Resistors (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Chemical Treatment Of Metals (AREA)
- Noodles (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
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 (pt) |
AT (1) | ATE82781T1 (pt) |
BR (1) | BR8903649A (pt) |
CA (1) | CA1339605C (pt) |
DE (1) | DE68903608T2 (pt) |
ES (1) | ES2037341T3 (pt) |
FI (1) | FI81394C (pt) |
GR (1) | GR3006466T3 (pt) |
NZ (1) | NZ229811A (pt) |
Families Citing this family (24)
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 (pt) * | 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 (en) * | 1990-11-13 | 1992-05-20 | JAPAN PULP & PAPER RESEARCH INSTITUTE, INC. | Lignocellulolytic composition, process of producing the same and use of the same |
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 |
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 |
US5871730A (en) * | 1994-07-29 | 1999-02-16 | Universite De Sherbrooke | Thermostable xylanase DNA, protein and methods of use |
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 |
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 |
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 |
AU4067297A (en) * | 1996-08-16 | 1998-03-06 | 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 |
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 |
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 |
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)
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. |
-
1988
- 1988-07-22 FI FI883491A patent/FI81394C/fi not_active IP Right Cessation
-
1989
- 1989-07-04 NZ NZ229811A patent/NZ229811A/en unknown
- 1989-07-06 DE DE8989112331T patent/DE68903608T2/de not_active Expired - Fee Related
- 1989-07-06 ES ES198989112331T patent/ES2037341T3/es not_active Expired - Lifetime
- 1989-07-06 AT AT89112331T patent/ATE82781T1/de not_active IP Right Cessation
- 1989-07-06 EP EP89112331A patent/EP0351655B1/en not_active Expired - Lifetime
- 1989-07-21 CA CA000606351A patent/CA1339605C/en not_active Expired - Fee Related
- 1989-07-24 BR BR898903649A patent/BR8903649A/pt not_active IP Right Cessation
-
1992
- 1992-12-07 GR GR920402824T patent/GR3006466T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
DE68903608D1 (de) | 1993-01-07 |
ES2037341T3 (es) | 1993-06-16 |
CA1339605C (en) | 1997-12-30 |
FI883491A (fi) | 1990-01-23 |
FI81394C (fi) | 1993-07-20 |
FI883491A0 (fi) | 1988-07-22 |
EP0351655B1 (en) | 1992-11-25 |
DE68903608T2 (de) | 1993-04-01 |
FI81394B (fi) | 1990-06-29 |
GR3006466T3 (pt) | 1993-06-21 |
EP0351655A1 (en) | 1990-01-24 |
NZ229811A (en) | 1991-03-26 |
ATE82781T1 (de) | 1992-12-15 |
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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 |