FI52746C - Device for continuous treatment of wood pulp with oxygen or oxygen-containing gas. - Google Patents
Device for continuous treatment of wood pulp with oxygen or oxygen-containing gas.Info
- Publication number
- FI52746C FI52746C FI702495A FI249570A FI52746C FI 52746 C FI52746 C FI 52746C FI 702495 A FI702495 A FI 702495A FI 249570 A FI249570 A FI 249570A FI 52746 C FI52746 C FI 52746C
- Authority
- FI
- Finland
- Prior art keywords
- oxygen
- containing gas
- wood pulp
- continuous treatment
- continuous
- 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
- D21C9/10—Bleaching ; Apparatus therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Branching, Merging, And Special Transfer Between Conveyors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA71726 | 1970-01-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI52746B FI52746B (en) | 1977-08-01 |
FI52746C true FI52746C (en) | 1977-11-10 |
Family
ID=4086157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI702495A FI52746C (en) | 1970-01-08 | 1970-09-10 | Device for continuous treatment of wood pulp with oxygen or oxygen-containing gas. |
Country Status (11)
Country | Link |
---|---|
US (1) | US3754417A (en) |
AT (1) | AT305015B (en) |
AU (1) | AU2323070A (en) |
BR (1) | BR7025003D0 (en) |
CA (1) | CA918978A (en) |
DE (1) | DE2100703A1 (en) |
FI (1) | FI52746C (en) |
FR (1) | FR2075111A5 (en) |
GB (1) | GB1343126A (en) |
NO (1) | NO130068B (en) |
ZA (1) | ZA708365B (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3830473A (en) * | 1973-02-22 | 1974-08-20 | Standard Brands Inc | Starch paste apparatus |
US4079603A (en) * | 1973-10-16 | 1978-03-21 | Niels Bergholtz & Company K/B | Apparatus for liquid treatment, particularly for textile material dyeing |
US4062722A (en) * | 1974-01-18 | 1977-12-13 | Carlos Ibanez Ajuria | Device for treating deformable particles with the counterflowing liquids |
NO138491B (en) * | 1974-04-17 | 1978-06-05 | Per Kock Christensen | PROCEDURES FOR DELIGNIFICATION AND BLEACHING OF CELLULOSIS |
GB1505529A (en) * | 1974-06-14 | 1978-03-30 | Mo Och Domsjoe Ab | Method for the oxygen-gas delignification of lignocellulosic material and apparatus for carrying out the method |
JPS5126302A (en) * | 1974-08-22 | 1976-03-04 | Hitachi Shipbuilding Eng Co | Sansoganjugasunyoru seruroosubutsushitsuno shorihoho |
US3966542A (en) * | 1974-09-20 | 1976-06-29 | General Signal Corporation | Multi-stage bleaching of pulp using successively lower power levels |
US4048007A (en) * | 1975-05-14 | 1977-09-13 | The Dow Chemical Company | Method of removing solvent residues from aqueous paper pulps |
SU591539A1 (en) * | 1975-10-03 | 1978-02-05 | Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности | Lignocellulose material treatment plant |
NO137651C (en) * | 1975-10-31 | 1978-03-29 | Myrens Verksted As | PROCEDURE AND APPARATUS FOR CONTINUOUS TREATMENT OF FINDEL FIBER MATERIAL OR CELLULOSIZED MASS WITH GAS WITHOUT COVER. |
US4198266A (en) * | 1977-10-12 | 1980-04-15 | Airco, Inc. | Oxygen delignification of wood pulp |
US4259150A (en) * | 1978-12-18 | 1981-03-31 | Kamyr Inc. | Plural stage mixing and thickening oxygen bleaching process |
US4435249A (en) | 1979-09-05 | 1984-03-06 | The Black Clawson Co. | Process for the oxygen delignification of pulp mill rejects |
US4363697A (en) * | 1979-12-03 | 1982-12-14 | The Black Clawson Company | Method for medium consistency oxygen delignification of pulp |
ZA816105B (en) * | 1980-09-05 | 1982-09-29 | Black Clawson Co | Process and apparatus for the delignification of pulp |
US4405063A (en) * | 1981-02-27 | 1983-09-20 | Nordson Corporation | Method and apparatus for controlling the density of dispensed hot melt thermoplastic adhesive foam |
US4384920A (en) * | 1981-04-06 | 1983-05-24 | The Black Clawson Company | Method and apparatus for oxygen delignification |
ZA821923B (en) * | 1981-04-06 | 1983-02-23 | Black Clawson Co | Method and apparatus for oxygen delignification |
US6340409B1 (en) * | 1993-04-29 | 2002-01-22 | Lewis Donald Shackford | Method for multistage bleaching using gaseous reagent in the first stage with controlled gas release |
SE9402542D0 (en) * | 1994-07-20 | 1994-07-20 | Kvaerner Pulping Tech | Method and apparatus for bleaching with pressurized peroxide |
DE19626200C2 (en) * | 1996-06-29 | 2001-02-01 | Voith Sulzer Stoffaufbereitung | Process for increasing the whiteness of waste paper pulp |
US6153050A (en) * | 1998-03-24 | 2000-11-28 | Noranda Forest Inc. | Method and system for controlling the addition of bleaching reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching/delignifying stage |
WO2001068228A1 (en) * | 2000-03-13 | 2001-09-20 | The University Of Akron | Method and apparatus of mixing fibers |
US9512560B2 (en) * | 2014-10-31 | 2016-12-06 | Quantum Technologies, Inc. | Short oxygen delignification method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1044185A (en) * | 1908-05-01 | 1912-11-12 | Eugene D Jefferson | Bleaching apparatus. |
US2121324A (en) * | 1936-06-23 | 1938-06-21 | Texas Co | Liquid level control apparatus |
US2730888A (en) * | 1952-12-31 | 1956-01-17 | Hercules Powder Co Ltd | Apparatus for treating pulp with liquid |
US3130076A (en) * | 1961-09-29 | 1964-04-21 | American Cyanamid Co | Continuous vinyl grafting of cellulose |
US3134384A (en) * | 1963-05-20 | 1964-05-26 | Improved Machinery Inc | Downflow countercurrent washing apparatus |
CA834629A (en) * | 1966-09-30 | 1970-02-17 | Amiel W. Brinkley, Jr. | Rapid high consistency bleaching of pulp |
US3587257A (en) * | 1967-10-16 | 1971-06-28 | Stadler Hurter International L | Bleaching system including a single,triple-deck table washer |
-
1970
- 1970-01-08 CA CA918978A patent/CA918978A/en not_active Expired
- 1970-09-10 FI FI702495A patent/FI52746C/en active
- 1970-12-10 ZA ZA708365A patent/ZA708365B/en unknown
- 1970-12-10 AU AU23230/70A patent/AU2323070A/en not_active Expired
- 1970-12-10 US US00096949A patent/US3754417A/en not_active Expired - Lifetime
- 1970-12-15 NO NO04820/70A patent/NO130068B/no unknown
- 1970-12-29 FR FR7046990A patent/FR2075111A5/fr not_active Expired
- 1970-12-29 BR BR225003/70A patent/BR7025003D0/en unknown
-
1971
- 1971-01-07 GB GB73371A patent/GB1343126A/en not_active Expired
- 1971-01-08 AT AT11371A patent/AT305015B/en not_active IP Right Cessation
- 1971-01-08 DE DE19712100703 patent/DE2100703A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
ZA708365B (en) | 1972-07-26 |
AT305015B (en) | 1973-02-12 |
BR7025003D0 (en) | 1973-01-18 |
CA918978A (en) | 1973-01-16 |
NO130068B (en) | 1974-07-01 |
FI52746B (en) | 1977-08-01 |
AU2323070A (en) | 1972-06-15 |
GB1343126A (en) | 1974-01-10 |
FR2075111A5 (en) | 1971-10-08 |
US3754417A (en) | 1973-08-28 |
DE2100703A1 (en) | 1971-07-15 |
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