FI104470B - Reaktori - Google Patents

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Publication number
FI104470B
FI104470B FI941080A FI941080A FI104470B FI 104470 B FI104470 B FI 104470B FI 941080 A FI941080 A FI 941080A FI 941080 A FI941080 A FI 941080A FI 104470 B FI104470 B FI 104470B
Authority
FI
Finland
Prior art keywords
fluid
air
aerator
liquid
tank
Prior art date
Application number
FI941080A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI941080A0 (fi
FI941080A (fi
Inventor
Robin John Batterham
Warwick Arthur Hoffmann
David Stewart Conochie
Original Assignee
Techonological Resources Pty L
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
Application filed by Techonological Resources Pty L filed Critical Techonological Resources Pty L
Publication of FI941080A0 publication Critical patent/FI941080A0/fi
Publication of FI941080A publication Critical patent/FI941080A/fi
Application granted granted Critical
Publication of FI104470B publication Critical patent/FI104470B/fi

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18Stationary reactors having moving elements inside
    • B01J19/1868Stationary reactors having moving elements inside resulting in a loop-type movement
    • B01J19/1875Stationary reactors having moving elements inside resulting in a loop-type movement internally, i.e. the mixture circulating inside the vessel such that the upwards stream is separated physically from the downwards stream(s)
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232Mixing 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
    • B01F23/2323Mixing 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 by circulating the flow in guiding constructions or conduits
    • B01F23/23231Mixing 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 by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2334Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
    • B01F23/23341Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer with tubes surrounding the stirrer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/31Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/31Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31242Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/32Injector mixers wherein the additional components are added in a by-pass of the main flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • B01F35/711Feed mechanisms for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • B01F35/712Feed mechanisms for feeding fluids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • B01F35/717Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • B01F35/717Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7179Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • B01F35/717Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71805Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1845Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised
    • B01J8/1854Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised followed by a downward movement inside the reactor to form a loop
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/237Mixing 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
    • B01F23/2376Mixing 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
    • B01F23/23761Aerating, i.e. introducing oxygen containing gas in liquids
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00Gas and liquid contact apparatus
    • Y10S261/75Flowing liquid aspirates gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
FI941080A 1992-07-09 1994-03-08 Reaktori FI104470B (fi)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AUPL343692 1992-07-09
AUPL343792 1992-07-09
AUPL343792 1992-07-09
AUPL343692 1992-07-09
AU9300340 1993-07-09
PCT/AU1993/000340 WO1994001210A1 (en) 1992-07-09 1993-07-09 A reactor

Publications (3)

Publication Number Publication Date
FI941080A0 FI941080A0 (fi) 1994-03-08
FI941080A FI941080A (fi) 1994-03-08
FI104470B true FI104470B (fi) 2000-02-15

Family

ID=25644288

Family Applications (1)

Application Number Title Priority Date Filing Date
FI941080A FI104470B (fi) 1992-07-09 1994-03-08 Reaktori

Country Status (12)

Country Link
US (1) US5512217A (ko)
EP (1) EP0606432B1 (ko)
JP (1) JP3204978B2 (ko)
KR (1) KR100301612B1 (ko)
AT (1) ATE149876T1 (ko)
BR (1) BR9305579A (ko)
CA (1) CA2116248C (ko)
DE (1) DE69308802T2 (ko)
FI (1) FI104470B (ko)
NZ (1) NZ253976A (ko)
RU (1) RU2139132C1 (ko)
WO (1) WO1994001210A1 (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO129096A0 (en) * 1996-07-26 1996-08-22 Boc Gases Australia Limited Oxygen dissolver for pipelines or pipe outlets
KR200187153Y1 (ko) * 1997-08-27 2000-07-01 윤종용 화상형성장치의 증기회수장치용 응축장치
CA2327150C (en) 1999-11-30 2012-06-26 Gerard Van Dijk Apparatus for mixing and aerating liquid-solid slurries
US6530895B1 (en) * 2000-01-25 2003-03-11 Life International Products, Inc. Oxygenating apparatus, method for oxygenating a liquid therewith, and applications thereof
KR100621713B1 (ko) 2000-09-26 2006-09-13 테크놀라지칼 리소시스 피티와이. 리미티드. 고체 물질의 품질개량 방법 및 장치
FR2823742B1 (fr) * 2001-04-19 2004-03-12 Alain Boulant Dispositif pour brasser et aerer un liquide dans une cuve de traitement
FR2823743B1 (fr) * 2001-04-19 2004-03-12 Alain Boulant Dispositif pour brasser et aerer un liquide dans une cuve de traitement
MXPA04006104A (es) * 2001-12-19 2004-11-01 Anatolievich Kutyev Anatoly Medios individuales para producir un coctel de oxigeno y el cilindro de oxigeno para el mismo.
DK2248771T3 (en) 2009-05-04 2015-12-14 Paques Ip Bv A bioreactor, comprising a mixing chamber
US8673246B2 (en) * 2011-03-23 2014-03-18 Uop Llc Process for contacting one or more fluids and a reactor relating thereto
RU2516572C1 (ru) * 2012-12-28 2014-05-20 Открытое акционерное общество "Воскресенские минеральные удобрения" Реактор для проведения химических процессов, сопровождающихся обильным пенообразованием
EP3766569A1 (en) * 2019-07-18 2021-01-20 Linde GmbH Apparatus for dissolving gas into a liquid and method for producing the same

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US897735A (en) * 1906-01-23 1908-09-01 Firm Of Chem Fab Floersheim Dr H Noerdlinger Process of freeing waste waters containing cyanids and sulfocyanids from poison.
US1808956A (en) * 1930-06-17 1931-06-09 Schutte & Koerting Co Apparatus for and method of combining liquids and gases
BE505351A (ko) * 1950-08-23
US2708571A (en) * 1951-05-29 1955-05-17 Industrikemiska Ab Method and apparatus for contacting gases and liquids
US3350302A (en) * 1964-09-16 1967-10-31 Nikex Nehezipari Kulkere Clarification of surface waters
DE1584885A1 (de) * 1965-09-14 1970-02-05 Danjes Dipl Ing Martin Vorrichtung zum biologischen Reinigen von Abwaessern
US3371618A (en) * 1966-02-18 1968-03-05 Chambers John Pump
DE1940458B2 (de) * 1968-08-12 1972-02-17 Miejskie Przedsiebiorstwo Wodociagow i Kanaliczacji, Czestochowa (Polen) Verfahren und vorrichtung zum begasen einer fluessigkeit
AT288294B (de) * 1968-11-20 1971-02-25 Vogelbusch Gmbh Vorrichtung zur Begasung von Flüssigkeiten
DE1906051A1 (de) * 1969-02-07 1970-08-27 Basf Ag Verfahren zur Herstellung von Alkinolen bzw.Alkindiolen
US3592586A (en) * 1969-02-17 1971-07-13 Franke Plating Works Method for treating cyanide wastes
NL6910591A (ko) * 1969-07-10 1971-01-12
US3680698A (en) * 1970-02-25 1972-08-01 Occidental Petroleum Corp Process for the treatment of slimes and waste solids
US3927152A (en) * 1971-03-12 1975-12-16 Fmc Corp Method and apparatus for bubble shearing
BE790132R (fr) * 1971-10-14 1973-04-16 Basf Ag Procede et dispositif d'aeration de
US4017565A (en) * 1973-07-13 1977-04-12 Mueller Hans Device for admixing a gaseous and a liquid phase
US4000227A (en) * 1973-09-27 1976-12-28 Boc International Limited Dissolving gas in liquid
US4051204A (en) * 1973-12-21 1977-09-27 Hans Muller Apparatus for mixing a liquid phase and a gaseous phase
US3932275A (en) * 1974-08-29 1976-01-13 Amax Resource Recovery Systems, Inc. Process for the treatment of mineral slimes
US4193950A (en) * 1975-07-04 1980-03-18 Linde Aktiengesellschaft Apparatus for introducing gas into a liquid
GB1484657A (en) * 1975-08-19 1977-09-01 Kamelmacher E Liquid treatment plants and methods for their operation
GB1531015A (en) * 1975-10-31 1978-11-01 Laurie A Aeration and mixing of liquids
GB1591104A (en) * 1976-11-18 1981-06-17 Boc Ltd Treatment of sewage in a sewer by oxygenation
GB1568820A (en) * 1976-01-12 1980-06-04 Boc Ltd Dissolving gas in liquid
FR2338071A1 (fr) * 1976-01-16 1977-08-12 Cem Comp Electro Mec Procede et dispositif pour la formation de bulles gazeuses, par exemple en vue de la flottation
GB1524765A (en) * 1976-02-27 1978-09-13 Unisearch Ltd Process and apparatus for the aerobic biological purification of liquid wastes containing organic pollutants
CA1097605A (en) * 1976-05-03 1981-03-17 Donald E. Weiss Water clarification
GB2011369B (en) * 1977-09-12 1982-03-10 Boc Ltd Treatment of aqueous waste material
GB2013095B (en) * 1977-09-12 1982-03-10 Boc Ltd Dissolving gas in a liquid
US4521307A (en) * 1977-11-04 1985-06-04 Reid John H Conservation of momentum in a barrier oxidation ditch
US4290885A (en) * 1977-12-22 1981-09-22 Dochan Kwak Aeration device
GB1597391A (en) * 1978-01-25 1981-09-09 American Water Recycling Co Apparatus and method for treating sewage
GB2037174A (en) * 1978-12-15 1980-07-09 Venturator Systems Ltd Apparatus for the gasification of liquids
US4267052A (en) * 1979-12-10 1981-05-12 Chang Shih Chih Aeration method and apparatus
ZA807896B (en) * 1979-12-18 1981-09-30 Boc Ltd Method and apparatus for dissolving gas in a liquid
GB2072027B (en) * 1980-01-30 1983-04-07 Water Res Centre Transfer of oxygen into wastewater
FR2484447A1 (fr) * 1980-06-13 1981-12-18 Saps Anticorrosion Procede et dispositif de biotransformation aerobie
US4483826A (en) * 1980-08-12 1984-11-20 Phillips Petroleum Company Combination reaction vessel and aspirator-mixer
JPS5814910A (ja) * 1981-07-20 1983-01-28 Kubota Ltd 凝集沈澱方法
DE3130597C2 (de) * 1981-08-01 1986-07-24 Klöckner-Werke AG, 4100 Duisburg Verfahren und Vorrichtung zum Begasen einer Flüssigkeit
US4465597B2 (en) * 1981-08-10 1997-07-01 Tetra Tech Treatment of industrial wastewaters
GB2107696B (en) * 1981-10-16 1985-01-09 Geoffrey John Hamilton Mcbride Improvements relating to sewage disposal systems
GB2118449B (en) * 1981-11-06 1985-09-25 Boc Group Plc Dissolving gas in a liquid
GB8315381D0 (en) * 1983-06-03 1983-07-06 Boc Group Plc Liquid phase oxidation
SE442173B (sv) * 1983-10-27 1985-12-09 Sunds Defibrator Anordning vid flotation av fibersuspensioner
GB2179647B (en) * 1985-05-21 1989-11-01 Boc Group Plc Treatment of sewage
BR8503919A (pt) * 1985-08-16 1987-03-24 Liquid Carbonic Ind Sa Ejetor para o processo co2 na neutralizacao de aguas alcalinas
DE3536057A1 (de) * 1985-10-09 1987-04-16 Gerhard Velebil Verfahren und vorrichtung zur aufrechterhaltung einer fluessigkeits-gas-dispersion
FR2589460B1 (fr) * 1985-10-30 1991-02-15 Dodier Jacques Dispositif de traitement par injection hydrocinetique, notamment pour eaux residuaires
IT209447Z2 (it) * 1985-12-04 1988-10-10 Varisco Pompe Spa Dispositivo per l'ossigenazione dei liquami.
GB8717098D0 (en) * 1987-07-20 1987-08-26 Water Res Centre Thermophilic aerobic digestion
US5043104A (en) * 1987-11-04 1991-08-27 Barrett Haentjens & Co. Apparatus for gas absorption in a liquid
GB8921454D0 (en) * 1989-09-22 1989-11-08 Thames Water Plc Oxygenation
US5004571A (en) * 1990-03-30 1991-04-02 Union Carbide Industrial Gases Technology Corporation Liquid level control in gas-liquid mixing operations
US5108662A (en) * 1991-05-01 1992-04-28 Union Carbide Industrial Gases Technology Corporation Gas-liquid mixing process and apparatus

Also Published As

Publication number Publication date
DE69308802T2 (de) 1997-06-19
EP0606432A1 (en) 1994-07-20
KR100301612B1 (ko) 2001-12-01
NZ253976A (en) 1997-01-29
WO1994001210A1 (en) 1994-01-20
JP3204978B2 (ja) 2001-09-04
CA2116248C (en) 2004-11-09
BR9305579A (pt) 1996-01-02
CA2116248A1 (en) 1994-01-20
RU2139132C1 (ru) 1999-10-10
FI941080A0 (fi) 1994-03-08
ATE149876T1 (de) 1997-03-15
US5512217A (en) 1996-04-30
FI941080A (fi) 1994-03-08
EP0606432A4 (en) 1994-11-30
JPH06510235A (ja) 1994-11-17
DE69308802D1 (de) 1997-04-17
EP0606432B1 (en) 1997-03-12

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