FI861167A - Foerfarande och anordning foer tvaettning av cellulosa. - Google Patents
Foerfarande och anordning foer tvaettning av cellulosa. Download PDFInfo
- Publication number
- FI861167A FI861167A FI861167A FI861167A FI861167A FI 861167 A FI861167 A FI 861167A FI 861167 A FI861167 A FI 861167A FI 861167 A FI861167 A FI 861167A FI 861167 A FI861167 A FI 861167A
- Authority
- FI
- Finland
- Prior art keywords
- washing
- pulp
- layer
- liquid
- washing liquid
- 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
- 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
- D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
- B01D33/13—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration with surface cells independently connected to pressure distributors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Dowels (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI861167A FI74752C (fi) | 1986-03-20 | 1986-03-20 | Foerfarande och anordning foer tvaettning av cellulosa |
AT87302303T ATE63949T1 (de) | 1986-03-20 | 1987-03-18 | Verfahren und vorrichtung zum waschen einer zellstoffmasse. |
EP87302303A EP0239312B1 (en) | 1986-03-20 | 1987-03-18 | Method and apparatus for washing pulp |
JP62067755A JPS6312789A (ja) | 1986-03-20 | 1987-03-20 | パルプ洗浄方法及び装置 |
US07/028,273 US4919158A (en) | 1986-03-20 | 1987-03-20 | Method and apparatus for washing pulp |
US07/485,134 US5116423A (en) | 1986-03-20 | 1990-02-26 | Apparatus for washing pulp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI861167 | 1986-03-20 | ||
FI861167A FI74752C (fi) | 1986-03-20 | 1986-03-20 | Foerfarande och anordning foer tvaettning av cellulosa |
Publications (4)
Publication Number | Publication Date |
---|---|
FI861167A0 FI861167A0 (fi) | 1986-03-20 |
FI861167A true FI861167A (fi) | 1987-09-21 |
FI74752B FI74752B (fi) | 1987-11-30 |
FI74752C FI74752C (fi) | 1992-12-01 |
Family
ID=8522328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI861167A FI74752C (fi) | 1986-03-20 | 1986-03-20 | Foerfarande och anordning foer tvaettning av cellulosa |
Country Status (5)
Country | Link |
---|---|
US (2) | US4919158A (fi) |
EP (1) | EP0239312B1 (fi) |
JP (1) | JPS6312789A (fi) |
AT (1) | ATE63949T1 (fi) |
FI (1) | FI74752C (fi) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI74752C (fi) * | 1986-03-20 | 1992-12-01 | Ahlstroem Oy | Foerfarande och anordning foer tvaettning av cellulosa |
US6010594A (en) * | 1993-03-03 | 2000-01-04 | Ahlstrom Machinery Corporation | Method of bleaching pulp with chlorine-free chemicals wherein a complexing agent is added immediately after an ozone bleach stage |
FI93232C (fi) * | 1993-03-03 | 1995-03-10 | Ahlstroem Oy | Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla |
FI107742B (fi) * | 1995-09-11 | 2001-09-28 | Andritz Ahlstrom Oy | Menetelmä ja laite massan käsittelemiseksi |
FI960438A (fi) * | 1995-09-11 | 1997-03-12 | Ahlstrom Machinery Oy | Laitteisto ja menetelmä kuitumassapesurin puhdistamiseksi tahma-aineista |
US5741399A (en) * | 1996-06-24 | 1998-04-21 | Beloit Technologies, Inc. | Pulp washing method |
US5839142A (en) * | 1996-07-09 | 1998-11-24 | Thermo Fibertek Inc. | Stock washer for washing, thickening and classifying solids |
EP0956388A1 (en) * | 1997-01-31 | 1999-11-17 | Ahlstrom Machinery Oy | Feeding of washing liquid in a pulp washer |
FI112957B (fi) * | 1999-07-21 | 2004-02-13 | Metso Paper Pori Oy | Menetelmä ja laite massan pesemiseksi |
US7276625B2 (en) * | 2002-10-15 | 2007-10-02 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US7132566B2 (en) * | 2003-09-22 | 2006-11-07 | Eastman Chemical Company | Process for the purification of a crude carboxylic acid slurry |
US7074954B2 (en) * | 2002-12-09 | 2006-07-11 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
US7161027B2 (en) | 2002-12-09 | 2007-01-09 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
WO2004052821A1 (en) * | 2002-12-09 | 2004-06-24 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
US7193109B2 (en) | 2003-03-06 | 2007-03-20 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
FI121792B (fi) * | 2003-06-30 | 2011-04-15 | Andritz Oy | Menetelmä massan käsittelemiseksi kemiallisen massan valkaisun yhteydessä |
US20050059709A1 (en) * | 2003-09-15 | 2005-03-17 | Meythaler Jay M. | Treatment of a neuropathy with rapid release aminopyridine |
US7214760B2 (en) * | 2004-01-15 | 2007-05-08 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
DE102004033328A1 (de) * | 2004-07-09 | 2006-02-09 | Bhs-Sonthofen Gmbh | Filter mit Feststoff-Resuspendierung |
FI122775B (fi) | 2004-09-07 | 2012-06-29 | Andritz Oy | Laite ja menetelmä massan käsittelemiseksi |
SE528716C8 (sv) * | 2005-06-03 | 2007-04-24 | Metso Paper Inc | Anordning för behandling av cellulosamassa i en tvättanordning |
SE528727C2 (sv) * | 2005-06-03 | 2007-02-06 | Metso Paper Inc | Anordning för behandling av cellulosamassa i en tvättapparat anordnad med medel för att avlägsna tätningar |
SE528729E (sv) | 2005-06-03 | 2015-12-15 | Metso Paper Inc | Anordning för behandling av cellulosamassa |
SE528722C2 (sv) * | 2005-06-03 | 2007-01-30 | Metso Paper Inc | Anordning för behandling av cellulosamassa i en tvättapparat anordnad med en förstärkande spant |
US20070179312A1 (en) * | 2006-02-02 | 2007-08-02 | O'meadhra Ruairi Seosamh | Process for the purification of a crude carboxylic axid slurry |
US8614350B2 (en) | 2008-01-15 | 2013-12-24 | Eastman Chemical Company | Carboxylic acid production process employing solvent from esterification of lignocellulosic material |
US8455680B2 (en) | 2008-01-15 | 2013-06-04 | Eastman Chemical Company | Carboxylic acid production process employing solvent from esterification of lignocellulosic material |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2753766A (en) * | 1951-12-29 | 1956-07-10 | Forming Machine Company Of Ame | Positive pressure machine for forming continuous strips of fibrous materials |
US3229815A (en) * | 1961-12-05 | 1966-01-18 | Wilfred F Mathewson | Pulp screen or filter |
US3915865A (en) * | 1973-06-12 | 1975-10-28 | Kurita Water Ind Ltd | Hydro-separator for slurry |
SE406944B (sv) * | 1976-04-14 | 1979-03-05 | Mo Och Domsjoe Ab | Forfarande for att reglera tillsatsen av suspensinsvetska vid kontinuerlig tvettning av suspensioner |
US4156384A (en) * | 1976-08-30 | 1979-05-29 | Stoelting, Inc. | Method and apparatus for separating liquids from soft particulate food solids |
US4154644A (en) * | 1978-02-27 | 1979-05-15 | Georgia-Pacific Corporation | Pulp washer |
FI56865C (fi) * | 1978-06-01 | 1980-04-10 | Enso Gutzeit Oy | Foerfarande och aggregat foer tvaettning av cellulosa |
FI56564C (fi) * | 1979-01-26 | 1980-02-11 | Enso Gutzeit Oy | Anordning foer tvaettning av massa |
JPS569728A (en) * | 1979-07-06 | 1981-01-31 | Olympus Optical Co Ltd | Optical device with focus correcting mechanism |
US4310424A (en) * | 1980-07-23 | 1982-01-12 | Champion International Corporation | Apparatus and method for removing suspended solids from a stream |
JPS57133291A (en) * | 1981-02-06 | 1982-08-17 | Mitsubishi Heavy Ind Ltd | Washing apparatus |
FI65829C (fi) * | 1982-08-06 | 1984-07-10 | Enso Gutzeit Oy | Foerfarande foer tvaettning av cellulosa |
US4491501A (en) * | 1982-12-08 | 1985-01-01 | Westvaco Corporation | Method for washing a fibrous particle mat with wash liquor having an impact energy sufficient to disrupt and rearrange the interstitial pore matrix |
US4549415A (en) * | 1983-02-03 | 1985-10-29 | Beloit Corporation | Continuous counterflow belt washer |
US4539827A (en) * | 1983-03-11 | 1985-09-10 | Westvaco Corporation | Belt washing improvements |
SE454187B (sv) * | 1985-10-31 | 1988-04-11 | Kamyr Ab | Apparat for behandling av fibermaterial |
FI74752C (fi) * | 1986-03-20 | 1992-12-01 | Ahlstroem Oy | Foerfarande och anordning foer tvaettning av cellulosa |
US4894121A (en) * | 1986-08-07 | 1990-01-16 | Ingersoll-Rand Company | Pressure pulp washer |
-
1986
- 1986-03-20 FI FI861167A patent/FI74752C/fi not_active IP Right Cessation
-
1987
- 1987-03-18 AT AT87302303T patent/ATE63949T1/de not_active IP Right Cessation
- 1987-03-18 EP EP87302303A patent/EP0239312B1/en not_active Expired - Lifetime
- 1987-03-20 US US07/028,273 patent/US4919158A/en not_active Expired - Lifetime
- 1987-03-20 JP JP62067755A patent/JPS6312789A/ja active Granted
-
1990
- 1990-02-26 US US07/485,134 patent/US5116423A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0239312A1 (en) | 1987-09-30 |
JPH0320516B2 (fi) | 1991-03-19 |
FI74752B (fi) | 1987-11-30 |
EP0239312B1 (en) | 1991-05-29 |
ATE63949T1 (de) | 1991-06-15 |
JPS6312789A (ja) | 1988-01-20 |
FI861167A0 (fi) | 1986-03-20 |
FI74752C (fi) | 1992-12-01 |
US4919158A (en) | 1990-04-24 |
US5116423A (en) | 1992-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: AHLSTROM MACHINERY OY |
|
MA | Patent expired |