DE3672580D1 - METHOD AND DEVICE FOR BLEACHING PAPER PULP. - Google Patents
METHOD AND DEVICE FOR BLEACHING PAPER PULP.Info
- Publication number
- DE3672580D1 DE3672580D1 DE8686402533T DE3672580T DE3672580D1 DE 3672580 D1 DE3672580 D1 DE 3672580D1 DE 8686402533 T DE8686402533 T DE 8686402533T DE 3672580 T DE3672580 T DE 3672580T DE 3672580 D1 DE3672580 D1 DE 3672580D1
- Authority
- DE
- Germany
- Prior art keywords
- paper pulp
- bleaching paper
- bleaching
- pulp
- paper
- 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 - Fee Related
Links
- 229920001131 Pulp (paper) Polymers 0.000 title 1
- 238000004061 bleaching Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
- B01F23/237612—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3133—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit characterised by the specific design of the injector
- B01F25/31331—Perforated, multi-opening, with a plurality of holes
- B01F25/313311—Porous injectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
- B01F25/31421—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction the conduit being porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4335—Mixers with a converging-diverging cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4337—Mixers with a diverging-converging cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/834—Mixing in several steps, e.g. successive steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/715—Feeding the components in several steps, e.g. successive steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/919—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings
- B01F2025/9191—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component
- B01F2025/91911—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component with feed openings in the center of the main flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/919—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings
- B01F2025/9191—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component
- B01F2025/91912—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component with feed openings at the circumference of the main flow
- B01F2025/919121—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component with feed openings at the circumference of the main flow with feed openings around the complete circumference of the main flow, e.g. being a perforated or porous part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/919—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings
- B01F2025/9191—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component
- B01F2025/919125—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component with feed openings in the center and at the circumference of the main flow
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US79828685A | 1985-11-15 | 1985-11-15 | |
CA000507000A CA1300320C (en) | 1985-11-15 | 1986-04-18 | Pulp bleaching |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3672580D1 true DE3672580D1 (en) | 1990-08-16 |
Family
ID=25670962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686402533T Expired - Fee Related DE3672580D1 (en) | 1985-11-15 | 1986-11-14 | METHOD AND DEVICE FOR BLEACHING PAPER PULP. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0226495B1 (en) |
AU (1) | AU595842B2 (en) |
BR (1) | BR8605636A (en) |
DE (1) | DE3672580D1 (en) |
NZ (1) | NZ218294A (en) |
PT (1) | PT83745B (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1300322C (en) * | 1987-06-08 | 1992-05-12 | Derek Hornsey | Method of bleaching or delignification of cellulose pulp with oxygen |
FR2617736A1 (en) * | 1987-07-08 | 1989-01-13 | Sampson Cat | Device for producing emulsion with a view to cleaning and disinfection |
RU2103433C1 (en) * | 1995-01-16 | 1998-01-27 | Грудинин Владимир Павлович | Method and installation for treating fibrous mass by chemical reagent |
NO962328L (en) * | 1996-06-05 | 1997-12-08 | Aga Ab | Method and apparatus for introducing gas into a liquid |
DE19849628A1 (en) * | 1998-10-28 | 2000-05-04 | Margret Spiegel | Method and arrangement for introducing gas into a liquid |
EP1319435A3 (en) * | 2001-12-12 | 2004-10-06 | Collectplan GmbH | Method and apparatus for introducing a first medium in a second medium |
DE102004059934A1 (en) * | 2004-12-09 | 2006-06-22 | Würdig, Uwe, Dipl.-Ing. | System to enrich a fluid with a gas, especially aerate water with oxygen, has a jet within the treatment chamber where the oxygen is ripped out by the water flow to form a mist to dissolve the oxygen |
SE0502140L (en) * | 2005-09-28 | 2006-11-14 | Kvaerner Pulping Tech | Apparatus for mixing steam to a flow of cellulose pulp |
WO2008115173A1 (en) | 2007-03-15 | 2008-09-25 | Dow Global Technologies Inc. | Mixer for a continuous flow reactor, continuous flow reactor, method of forming such a mixer, and method of operating such a reactor |
US7891861B2 (en) * | 2007-09-20 | 2011-02-22 | Fujifilm Corporation | Mixing method and mixer for mixing polymer dope, and solution casting process and apparatus |
KR101351302B1 (en) * | 2012-10-23 | 2014-01-15 | 주식회사 디섹 | Ballast water managemant system for a shi |
EP3485968A4 (en) * | 2016-06-15 | 2020-02-12 | Satoshi Anzai | Ultrafine bubble generation device for aquaculture or wastewater treatment |
WO2020072845A1 (en) * | 2018-10-05 | 2020-04-09 | University Of Baltimore | Systems, methods and apparatus for utilizing a resuspension tank |
SE545007C2 (en) * | 2021-01-18 | 2023-02-28 | Valmet Oy | Mixing device and method for mixing a fluid into a fiber pulp |
CN115448440B (en) * | 2022-07-25 | 2023-10-24 | 中石化宁波工程有限公司 | Fractal oxidation device |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2968589A (en) * | 1958-03-17 | 1961-01-17 | Kimberly Clark Co | Continuous pulp bleaching method |
US3545731A (en) * | 1966-11-08 | 1970-12-08 | Gen Dynamics Corp | Apparatus for producing bubbles of very small,microscopic size |
DE2046254A1 (en) * | 1969-09-18 | 1971-04-01 | Atomic Energy Of Canada Ltd | |
US3928199A (en) * | 1971-09-20 | 1975-12-23 | Airco Inc | Gas absorption system and method |
US4030969A (en) * | 1972-06-13 | 1977-06-21 | Defibrator Ab | Method of dispersing a bleaching agent into a stream of fibrous cellulosic pulp material in a throttling nozzle |
DE2241673C2 (en) * | 1972-09-01 | 1982-03-04 | Vsesojuznyj naučno-issledovatel'skij institut celljulozno-bumažnoj promyšlennosti, Leningrad | Plant for processing suspensions of fibrous materials |
SE387671B (en) * | 1973-04-27 | 1976-09-13 | Mo Och Domsjoe Ab | COMPACT WHITE BLEACHING, NON-FLUFFAT LIQUID LIGNOCELLULOSE MATERIAL WITH GASY BLEACHING, PREFERABLY ACID GAS |
US3892659A (en) * | 1973-05-04 | 1975-07-01 | Airco Inc | Multiple cycle process for wastewater purification |
US3951733A (en) * | 1974-11-06 | 1976-04-20 | International Paper Company | Delignification and bleaching of wood pulp with oxygen |
US4198266A (en) * | 1977-10-12 | 1980-04-15 | Airco, Inc. | Oxygen delignification of wood pulp |
JPS54127064A (en) * | 1978-03-06 | 1979-10-02 | Komax Systems Inc | Charging instrument of stationary mixer |
US4259150A (en) * | 1978-12-18 | 1981-03-31 | Kamyr Inc. | Plural stage mixing and thickening oxygen bleaching process |
GB2072027B (en) * | 1980-01-30 | 1983-04-07 | Water Res Centre | Transfer of oxygen into wastewater |
DE3224961A1 (en) * | 1982-07-03 | 1984-01-05 | Bernhard Prof. Dipl.-Ing. 5064 Rösrath Kunst | Hybrid liquid gasification nozzle |
ZA835925B (en) * | 1982-09-30 | 1984-04-25 | Black Clawson Co | Method and apparatus for oxygen delignification |
-
1986
- 1986-11-03 AU AU64671/86A patent/AU595842B2/en not_active Ceased
- 1986-11-14 DE DE8686402533T patent/DE3672580D1/en not_active Expired - Fee Related
- 1986-11-14 PT PT83745A patent/PT83745B/en not_active IP Right Cessation
- 1986-11-14 EP EP86402533A patent/EP0226495B1/en not_active Expired - Lifetime
- 1986-11-14 NZ NZ218294A patent/NZ218294A/en unknown
- 1986-11-14 BR BR8605636A patent/BR8605636A/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0226495A1 (en) | 1987-06-24 |
BR8605636A (en) | 1987-08-18 |
PT83745A (en) | 1986-12-01 |
EP0226495B1 (en) | 1990-07-11 |
AU6467186A (en) | 1987-05-21 |
NZ218294A (en) | 1990-05-28 |
AU595842B2 (en) | 1990-04-12 |
PT83745B (en) | 1988-08-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |