ES369349A1 - Un metodo de tratar pulpa de celulosa con gas oxigeno. - Google Patents

Un metodo de tratar pulpa de celulosa con gas oxigeno.

Info

Publication number
ES369349A1
ES369349A1 ES369349A ES369349A ES369349A1 ES 369349 A1 ES369349 A1 ES 369349A1 ES 369349 A ES369349 A ES 369349A ES 369349 A ES369349 A ES 369349A ES 369349 A1 ES369349 A1 ES 369349A1
Authority
ES
Spain
Prior art keywords
pulp
layer
floors
compartments
oxygen gas
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
Application number
ES369349A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SOUTH AFRICAN PULP PAPER
Original Assignee
SOUTH AFRICAN PULP PAPER
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
Priority claimed from SE6809689A external-priority patent/SE411771B/xx
Application filed by SOUTH AFRICAN PULP PAPER filed Critical SOUTH AFRICAN PULP PAPER
Publication of ES369349A1 publication Critical patent/ES369349A1/es
Expired legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/93—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with rotary discs
    • 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
    • B01F35/50—Mixing receptacles
    • B01F35/53—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components
    • B01F35/531—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components with baffles, plates or bars on the wall or the bottom
    • B01F35/5312—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components with baffles, plates or bars on the wall or the bottom with vertical baffles mounted on the walls
    • 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
    • D21C9/1026—Other features in bleaching processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
    • 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
    • B01F35/50—Mixing receptacles
    • B01F35/53—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components
    • B01F35/531—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components with baffles, plates or bars on the wall or the bottom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
ES369349A 1968-07-11 1969-07-10 Un metodo de tratar pulpa de celulosa con gas oxigeno. Expired ES369349A1 (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE954068 1968-07-11
SE6809689A SE411771B (sv) 1968-07-15 1968-07-15 Apparat for behandling av cellulosamassa med gasformigt syre
ZA686629 1968-10-14
SE86869 1969-01-22

Publications (1)

Publication Number Publication Date
ES369349A1 true ES369349A1 (es) 1972-03-16

Family

ID=27484467

Family Applications (1)

Application Number Title Priority Date Filing Date
ES369349A Expired ES369349A1 (es) 1968-07-11 1969-07-10 Un metodo de tratar pulpa de celulosa con gas oxigeno.

Country Status (7)

Country Link
US (2) US3660225A (es)
DE (1) DE1935067C3 (es)
ES (1) ES369349A1 (es)
FI (1) FI45473C (es)
FR (1) FR2012740A1 (es)
NO (1) NO128336B (es)
OA (1) OA03094A (es)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
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US4105494A (en) * 1973-01-05 1978-08-08 Sunds Aktiebolag Process of gas-phase bleaching high consistency finely disintegrated pulp
US4177105A (en) * 1973-05-22 1979-12-04 Kamyr, Incorporated Apparatus for delignifying and bleaching cellulose pulp
US4062722A (en) * 1974-01-18 1977-12-13 Carlos Ibanez Ajuria Device for treating deformable particles with the counterflowing liquids
US4089737A (en) * 1974-02-18 1978-05-16 Toyo Pulp Company, Ltd. Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein
US3964962A (en) * 1974-02-25 1976-06-22 Ingersoll-Rand Company Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit
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
SE431662B (sv) * 1974-07-05 1984-02-20 Kamyr Ab Sett vid kontinuerlig kokning av fibermaterial
US3966542A (en) * 1974-09-20 1976-06-29 General Signal Corporation Multi-stage bleaching of pulp using successively lower power levels
US4058433A (en) * 1975-03-06 1977-11-15 Gulf States Paper Corporation Conversion of sulfur in blank liquor to eliminate odorous emissions and facilitate the collection of sulfate soaps
NO137651C (no) * 1975-10-31 1978-03-29 Myrens Verksted As Fremgangsmaate og apparat til kontinuerlig behandling av findelt fibermateriale eller celluloseholdig masse med gass uten overtrykk.
US4338158A (en) * 1976-04-09 1982-07-06 Weyerhaeuser Company Pulping in the presence of a protector
FI67413C (fi) * 1977-04-27 1985-03-11 Myrens Verksted As Foerfarande foer behandling av finfoerdelad fiberhaltig eller cellulosahaltig massa samt anordning foer utfoerande av foerfarandet
US4161421A (en) * 1977-09-13 1979-07-17 Kamyr, Inc. Method and apparatus for continuous oxygen bleaching of cellulosic pulp
US4259150A (en) * 1978-12-18 1981-03-31 Kamyr Inc. Plural stage mixing and thickening oxygen bleaching process
US4451268A (en) * 1982-09-29 1984-05-29 Lerch John A Dry acetylene generator
US4744873A (en) * 1986-11-25 1988-05-17 The Dow Chemical Company Multiple compartment electrolytic cell
US5135968A (en) * 1990-10-10 1992-08-04 Stranco, Ltd. Methods and apparatus for treating wastewater
US5164429A (en) * 1987-08-25 1992-11-17 Stranco, Inc. Polymer activation apparatus
US5061456A (en) * 1987-08-25 1991-10-29 Stranco, Inc. Polymer activation apparatus
US5316031A (en) * 1987-08-25 1994-05-31 Brazelton Carl L Valve with independent control of discharge through plurality of orifices
US5252635A (en) * 1987-08-25 1993-10-12 Stranco, Inc. Polymer activation method using two separate mixing zones
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
CA2068981C (en) * 1991-05-24 1996-08-27 Michael A. Pikulin Two stage pulp bleaching reactor
US5372679A (en) * 1992-06-08 1994-12-13 Air Products And Chemicals, Inc. Reactor system for treating cellulosic pulp at a constant upward flow velocity
US5338779A (en) * 1992-09-18 1994-08-16 Stranco, Inc Dry polymer activation apparatus and method
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
US6174409B1 (en) 1997-09-19 2001-01-16 American Air Liquide Inc. Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process
US6409926B1 (en) 1999-03-02 2002-06-25 United States Filter Corporation Air and water purification using continuous breakpoint halogenation and peroxygenation
US6143184A (en) 1999-03-02 2000-11-07 United States Filter Corporation Air and water purification using continuous breakpoint halogenation
MXPA02012886A (es) 2000-06-22 2003-05-14 United States Filter Corp Control de la corrosion utilizando un donador de peroxido de hidrogeno.
US6419817B1 (en) 2000-06-22 2002-07-16 United States Filter Corporation Dynamic optimization of chemical additives in a water treatment system
US6716359B1 (en) 2000-08-29 2004-04-06 United States Filter Corporation Enhanced time-based proportional control
US20020129911A1 (en) * 2000-10-16 2002-09-19 Marcoccia Bruno S. Process and configuration for providing external upflow/internal downflow in a continuous digester
US6620315B2 (en) 2001-02-09 2003-09-16 United States Filter Corporation System for optimized control of multiple oxidizer feedstreams
US6776926B2 (en) * 2001-08-09 2004-08-17 United States Filter Corporation Calcium hypochlorite of reduced reactivity
US7108781B2 (en) * 2002-02-26 2006-09-19 Usfilter Corporation Enhanced air and water purification using continuous breakpoint halogenation with free oxygen radicals
US6991735B2 (en) * 2002-02-26 2006-01-31 Usfilter Corporation Free radical generator and method
US10343939B2 (en) 2006-06-06 2019-07-09 Evoqua Water Technologies Llc Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water
US8652336B2 (en) * 2006-06-06 2014-02-18 Siemens Water Technologies Llc Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water
US12103874B2 (en) 2006-06-06 2024-10-01 Evoqua Water Technologies Llc Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water
US9365436B2 (en) * 2007-04-03 2016-06-14 Evoqua Water Technologies Llc Method of irradiating a liquid
US8741155B2 (en) * 2007-04-03 2014-06-03 Evoqua Water Technologies Llc Method and system for providing ultrapure water
US20080245737A1 (en) * 2007-04-03 2008-10-09 Siemens Water Technologies Corp. Method and system for providing ultrapure water
US8961798B2 (en) * 2007-04-03 2015-02-24 Evoqua Water Technologies Llc Method for measuring a concentration of a compound in a liquid stream
US8753522B2 (en) * 2007-04-03 2014-06-17 Evoqua Water Technologies Llc System for controlling introduction of a reducing agent to a liquid stream
US9365435B2 (en) * 2007-04-03 2016-06-14 Evoqua Water Technologies Llc Actinic radiation reactor
US9725343B2 (en) 2007-04-03 2017-08-08 Evoqua Water Technologies Llc System and method for measuring and treating a liquid stream
US8591730B2 (en) * 2009-07-30 2013-11-26 Siemens Pte. Ltd. Baffle plates for an ultraviolet reactor
CN103370401A (zh) 2010-08-17 2013-10-23 安德里兹技术资产管理有限公司 用于木质纤维素材料烘焙的方法和系统
EP2527301B1 (en) 2011-05-26 2016-04-27 Evoqua Water Technologies GmbH Method and arrangement for a water treatment
WO2013003599A2 (en) * 2011-06-28 2013-01-03 Andritz Inc. Method for the torrefaction of lignocellulosic material
US20130098751A1 (en) * 2011-06-28 2013-04-25 Andritz Inc. Method for the torrefaction of lignocellulosic material
WO2013003615A2 (en) 2011-06-28 2013-01-03 Andritz Inc. System for the torrefaction of lignocellulosic material
JP2014532096A (ja) * 2011-09-21 2014-12-04 アンドリッツ インコーポレーテッド リグノセルロース材料の焙焼のための方法及びシステム
FR2982273B1 (fr) * 2011-11-09 2014-03-14 Commissariat Energie Atomique Reacteur de sechage et de torrefaction de biomasse, de preference ligno-cellulosique
US11161762B2 (en) 2015-01-21 2021-11-02 Evoqua Water Technologies Llc Advanced oxidation process for ex-situ groundwater remediation
CA2918564C (en) 2015-01-21 2023-09-19 Evoqua Water Technologies Llc Advanced oxidation process for ex-situ groundwater remediation
CN107020041A (zh) * 2016-01-29 2017-08-08 上海戴沃机械科技有限公司 一种矿用新型搅拌桶装置
US12083526B1 (en) * 2023-03-13 2024-09-10 Namon A. Nassef Waste stream homogenizing apparatus and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1529919A (en) * 1922-03-06 1925-03-17 Stebbins Engineering And Mfg C Pulp-bleaching method and apparatus
US2431478A (en) * 1942-07-25 1947-11-25 Raymond P Hill Bleaching fibrous material
US2662821A (en) * 1949-05-03 1953-12-15 Celotex Corp Fiber preparation device
US3041051A (en) * 1959-08-10 1962-06-26 Reiffen Ernst Alfred Mixer
US3298900A (en) * 1963-03-22 1967-01-17 Kamyr Ab Method and apparatus for the continuous bleaching of cellulosic pulp
FI41897B (es) * 1963-12-23 1969-12-01 Kamyr Ab
US3492199A (en) * 1966-10-04 1970-01-27 Fmc Corp Bleaching fluffed mechanical wood pulp with hydrogen peroxide

Also Published As

Publication number Publication date
US3742735A (en) 1973-07-03
DE1935067B2 (de) 1974-08-15
DE1935067C3 (de) 1975-04-24
OA03094A (fr) 1970-12-15
US3660225A (en) 1972-05-02
FI45473B (es) 1972-02-29
FR2012740A1 (es) 1970-03-20
FI45473C (fi) 1972-06-12
DE1935067A1 (de) 1970-04-09
NO128336B (es) 1973-10-29

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