DE102010027448A1 - Arrangement for generating air bubbles in liquids - Google Patents
Arrangement for generating air bubbles in liquids Download PDFInfo
- Publication number
- DE102010027448A1 DE102010027448A1 DE102010027448A DE102010027448A DE102010027448A1 DE 102010027448 A1 DE102010027448 A1 DE 102010027448A1 DE 102010027448 A DE102010027448 A DE 102010027448A DE 102010027448 A DE102010027448 A DE 102010027448A DE 102010027448 A1 DE102010027448 A1 DE 102010027448A1
- Authority
- DE
- Germany
- Prior art keywords
- air bubbles
- air
- diffuser
- arrangement
- main process
- 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.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000005188 flotation Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000002351 wastewater Substances 0.000 description 9
- 239000000706 filtrate Substances 0.000 description 6
- 238000004065 wastewater treatment Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000002761 deinking Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/24—Pneumatic
- B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
-
- 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
- B01F23/232—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
- B01F23/2326—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 adding the flowing main component by suction means, e.g. using an ejector
-
- 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
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biotechnology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Paper (AREA)
Abstract
Die Erfindung betrifft eine Anordnung zur Erzeugung von Luftblasen in Flüssigkeiten innerhalb physikalischer Prozesse, bei denen Luftblasen zur Abscheidung in den Flüssigkeiten enthaltener Feststoffpartikel benötigt werden. Die Anordnung weist einen Hauptprozessbehälter auf, in die die zu behandelnde Flüssigkeit über eine Zulaufleitung eingeführt wird, der die zu Durchführung des physikalischen Prozesses benötigten Luftblasen zugeführt werden. Zur Erzeugung dieser Luftblasen ist erfindungsgemäß ein Diffusor vorhanden, in dessen Eingang ein Teil der aus dem Hauptprozessbehälter ausgeförderten behandelten Flüssigkeit geführt ist und dessen Düsenanordnung über eine Luftzufuhröffnung verfügt. Sein Ausgang ist mit der bereits genannten Zulaufleitung des Hauptprozessbehälters derart verbunden, dass die im Diffusor aus der Einsaugung von Luft in den durch den Diffusorgeführten Teil der bereits behandelten Flüssigkeit entstehenden Luftblasen in den Zulaufstrom der zu behandelnden Flüssigkeit injiziert werden.The invention relates to an arrangement for generating air bubbles in liquids within physical processes in which air bubbles are required for the separation of solid particles contained in the liquids. The arrangement has a main process container into which the liquid to be treated is introduced via an inlet line, to which the air bubbles required for carrying out the physical process are fed. To generate these air bubbles, a diffuser is provided according to the invention, in the inlet of which part of the treated liquid discharged from the main process container is guided and the nozzle arrangement of which has an air supply opening. Its outlet is connected to the above-mentioned inlet line of the main process container in such a way that the air bubbles created in the diffuser from the suction of air into the part of the liquid that has already been treated through the diffuser are injected into the inlet flow of the liquid to be treated.
Description
Die Erfindung betrifft eine Anordnung zur Erzeugung von Luftblasen in Flüssigkeiten. Sie kann Anwendung finden in physikalischen Prozessen, bei denen Luftblasen zur Abscheidung in den Flüssigkeiten enthaltener Feststoffpartikel benötigt werden. Dies kann z. B. in Flotationsanlagen zur Abwasserbehandlung, in Deinkinganlagen oder in der Wasseraufbereitung bei der Papierherstellung der Fall sein. Auch die Belüftung von Wässern bei der kommunalen Wasseraufbereitung oder die Injektion von Chemikalien in Flüssigkeiten bilden Anwendungsgebiete der Erfindung.The invention relates to an arrangement for generating air bubbles in liquids. It can be used in physical processes where air bubbles are required for the separation of solid particles contained in the liquids. This can be z. B. in flotation plants for wastewater treatment, in deinking plants or in the water treatment in papermaking be the case. The aeration of water in municipal water treatment or the injection of chemicals in liquids form fields of application of the invention.
Zur Einbringung von Luftblasen in Anlagen der vorgenanten Anwendungsgebiete sind eine Reihe von Lösungen bekannt, die sich in der Regel dadurch auszeichnen, dass mittels Kompressoren hoher Leistung Luft unter hohem Druck in Behälter und Leitungen gepresst wird, die die zu begasenden Flüssigkeiten enthalten.For the introduction of air bubbles in plants of the above-mentioned fields of application, a number of solutions are known, which are usually characterized in that by means of compressors high performance air is pressed under high pressure in containers and lines containing the liquids to be fumigated.
So wird z. B. in der deutschen Offenlegungsschrift
Auch in der deutschen Offenlegungsschrift
Auch in der Vorrichtung zum Einpressen von Gasen in Flüssigkeiten nach der deutschen Offenlegungsschrift
Wesentlicher Nachteil dieser Lösungen, die zum Einpressen der Luft in die Flüssigkeiten Kompressoren, Gebläse und Pumpen benutzen, ist der hohe Energieaufwand, den der Betrieb solcher Aggregate erfordert.The main disadvantage of these solutions, which use compressors, blowers and pumps to inject the air into the fluids, is the high energy consumption required by the operation of such units.
Hinzu kommt der nicht unerhebliche Verschleiß, dem diese schnell laufenden Rotationsmaschinen unterliegen und der zu laufenden hohen Wartungs- und Reparaturkosen führt.In addition, there is the not inconsiderable wear, which these fast-running rotary machines are subject to and which leads to ongoing high maintenance and repair costs.
Aus den benannten Nachteilen der Lösungen des Standes der Technik ergibt sich die Aufgabe, eine Anordnung zu entwickeln, mit der die benötigte Luftblasenbildung innerhalb der Flüssigkeiten erreicht werden kann, die aber dazu keine Kompressoren, Gebläse oder Luftpumpen enthält und daher einen deutlich verringerten gerätetechnischen und vor allem auch verringerten Energieaufwand nach sich zieht.From the named disadvantages of the solutions of the prior art, the task arises to develop an arrangement with which the required air bubble formation can be achieved within the fluids, but this contains no compressors, fans or air pumps and therefore a significantly reduced equipment and before All also entails reduced energy consumption.
Diese Aufgabe der Erfindung wird mit einer Anordnung gelöst, die entsprechend der Merkmale des Schutzanspruches 1 aufgebaut ist. Der Unteranspruch enthält eine vorteilhafte Ausgestaltung der Erfindung.This object of the invention is achieved with an arrangement which is constructed according to the features of the protection claim 1. The subclaim contains an advantageous embodiment of the invention.
Das Wesen der Erfindung besteht dabei darin, dass in der erfindungsgemäßen Anordnung zur Luftblasenerzeugung anstelle betriebsenergieaufwendiger Kompressoren, Gebläse oder Pumpen zur Luftblasenerzeugung ein Diffusor vorhanden ist, mittels dessen mit geringem Energieaufwand durch Einsaugen von Luft in einem Teilstrom der zu behandelnden Flüssigkeit die benötigten Luftblasen erzeugt werden, welche anschließend in den Zulauf des Behälters für den Hauptprozess der Flüssigkeitsbehandlung injiziert werden.The essence of the invention consists in the fact that in the arrangement according to the invention for producing air bubbles instead of betriebsenergieaufwendiger compressors, blowers or pumps for air bubble generation, a diffuser is provided by means of which the required air bubbles are generated with low energy consumption by sucking air in a partial flow of the liquid to be treated , which are then injected into the inlet of the container for the main process of liquid treatment.
Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail with reference to an exemplary embodiment.
Dabei zeigen die zugehörigen Zeichnungen inThe accompanying drawings show in FIG
Gemäß
Gemäß
Der Diffusor
Der Ausgang des Diffusors
Das Ausführungsbeispiel gemäß der
Die Belüftungsdaten der Flotationsanlage nach KROFTA vor dem Einsatz der erfindungsgemäßen Anordnung betrugen:
Der Einlauf an Schmutzwässern zur KROFTA-Anlage beträgt 12.000 l/min. Um Schwebstoffe zu flotieren wird eine Teilstrommenge vom gereinigten Filtrat von 2.400 l/min – d. h. 20% der behandelten Durchflussmenge – benötigt. Diese Menge wird mit einer Pumpe
The ventilation data of the flotation plant according to KROFTA before the use of the arrangement according to the invention were:
The inflow of wastewater to the KROFTA plant is 12,000 l / min. To float suspended matter, a partial flow of purified filtrate of 2400 l / min - ie 20% of the treated flow rate - is required. This amount comes with a pump
Bei der Anwendung der Erfindung gemäß
Von der Filtratpumpe
From the filtrate pump
Mit dem Diffusor
Die theoretische Energieeinsparung beträgt 98% und kann in der Praxis näherungsweise erreicht werden.The theoretical energy saving is 98% and can be approximated in practice.
Im gezeigten Ausführungsbeispiel ist eine beispielhafte Anordnung in einer beispielhaften Anwendung beschrieben worden. Die Erfindung schließt jedoch alle weiteren Anordnungen mit unterschiedlichen Prozessapparaten ein, bei denen mittels der erfindungsgemäßen Anordnung eines Diffusors eine Luftblasenerzeugung in zu behandelnden Flüssigkeiten unter Verzicht auf Kompressoren, Gebläsen und Pumpen vorgenommen wird.In the illustrated embodiment, an exemplary arrangement has been described in an exemplary application. However, the invention includes all other arrangements with different process apparatus, in which by means of the inventive arrangement of a diffuser, an air bubble generation in liquids to be treated is made waiving compressors, blowers and pumps.
Die erfindungsgemäße Anordnung kann in allen physikalischen Prozessen eingesetzt werden, bei denen Luftanteile in Flüssigkeiten benötigt werden, wie bei der Flotation, der Belüftung oder der Schlammkonditionierung.The arrangement according to the invention can be used in all physical processes in which air fractions in liquids are required, such as in flotation, aeration or sludge conditioning.
Mit ihrer Anwendung können sehr große Energieeinsparungen erreicht werden, in dem auf Kompressoren, Gebläse und Pumpen verzichtet werden kann. In den meisten Anwendungsfällen sind Energieeinsparungen von über 90% denkbar und realistisch.With their application, very large energy savings can be achieved, in which it is possible to dispense with compressors, blowers and pumps. In most cases, energy savings of more than 90% are conceivable and realistic.
Durch die gute Zerstreuung der Luftblasen mit dem Diffusor
Vorzugsweise kann die erfindungsgemäße Anordnung zur Erzeugung von Luftblasen in Flüssigkeiten in der Papierproduktion eingesetzt werden, und zwar besonders vorteilhaft in der Flotation zur Wasseraufbereitung in Kreisläufen von KROFTA-, Purgomat- und anderen Flotationsanlagen sowie Deinkinganlagen nach Voith, Lamort u. a.. Auch bei der allgemeinen kommunalen Wasseraufbereitung, bei aerobischen Prozessen und bei der Stabilisierung von Schlämmen ist die Erfindung sehr vorteilhaft einsetzbar.Preferably, the inventive arrangement for the production of air bubbles in liquids can be used in paper production, and particularly advantageous in the flotation for water treatment in cycles of KROFTA, Purgomat and other flotation and Deinkinganlagen Voith, Lamort u. a .. Also in general municipal water treatment, aerobic processes and in the stabilization of sludge, the invention can be used very advantageously.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- HauptprozessbehälterMain process vessels
- 22
- Zulaufleitungsupply line
- 33
- LuftmischtankAir mixing tank
- 44
- KlarwasserbehälterClear water tank
- 55
- Diffusordiffuser
- 66
- LeitungsrückführungLine feedback
- 77
- Pumpepump
- 88th
- Filtratpumpefiltrate
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 4201913 A1 [0003] DE 4201913 A1 [0003]
- DE 4126397 A1 [0004] DE 4126397 A1 [0004]
- DE 10251923 A1 [0005] DE 10251923 A1 [0005]
Claims (2)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010027448A DE102010027448A1 (en) | 2010-06-16 | 2010-07-17 | Arrangement for generating air bubbles in liquids |
EP11755240.6A EP2582464A2 (en) | 2010-06-16 | 2011-05-21 | Arrangement for separating floating solid particles and/or solid fibers from solid-liquid mixtures by means of flotation |
PCT/DE2011/001095 WO2011157253A2 (en) | 2010-06-16 | 2011-05-21 | Arrangement for separating floating solid particles and/or solid fibers from solid-liquid mixtures by means of flotation |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202010009140.3 | 2010-06-16 | ||
DE202010009140U DE202010009140U1 (en) | 2010-06-16 | 2010-06-16 | Arrangement for generating air bubbles in liquids |
DE102010027448A DE102010027448A1 (en) | 2010-06-16 | 2010-07-17 | Arrangement for generating air bubbles in liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010027448A1 true DE102010027448A1 (en) | 2011-12-22 |
Family
ID=42993937
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202010009140U Expired - Lifetime DE202010009140U1 (en) | 2010-06-16 | 2010-06-16 | Arrangement for generating air bubbles in liquids |
DE102010027448A Withdrawn DE102010027448A1 (en) | 2010-06-16 | 2010-07-17 | Arrangement for generating air bubbles in liquids |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202010009140U Expired - Lifetime DE202010009140U1 (en) | 2010-06-16 | 2010-06-16 | Arrangement for generating air bubbles in liquids |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2582464A2 (en) |
DE (2) | DE202010009140U1 (en) |
WO (1) | WO2011157253A2 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2484862A1 (en) * | 1980-06-18 | 1981-12-24 | Inst Nat Rech Chimique | Injector for contacting gas with liq. to form emulsion - injects high speed gas co-current at low angle of incidence |
US4844873A (en) * | 1984-11-30 | 1989-07-04 | Institut National De Recherche Chimique Applique | Separation and recovery of solids from liquids containing them using the ionic flotation process |
DE4126397A1 (en) | 1991-08-09 | 1993-02-11 | Europ Chemical Ind | METHOD AND DEVICE FOR CREATING FOAM |
DE4201913A1 (en) | 1992-01-24 | 1993-07-29 | Anton Ruef | Sepn. of oil etc. from sludges - by flotation with air which is recirculated after cooling, removing condensate and opt. heating |
DE10251923A1 (en) | 2002-11-08 | 2004-05-19 | Fan Separator Gmbh | Gas and liquid mixing system for producing liquid laden with micro-bubbles for flotation mineral separating plants has air and liquid compressor feeding high-pressure fluid to intake of mixing pump |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB728794A (en) * | 1953-05-22 | 1955-04-27 | John Oscar Georg Albrektsson | Method and apparatus for the introduction of air or other gases into water in connection with the flotation treatment of the water |
DE2938264C2 (en) * | 1979-09-21 | 1984-10-18 | Gkss - Forschungszentrum Geesthacht Gmbh, 2000 Hamburg | Device for water purification and / or aeration by means of relaxation flotation |
EP0037513B1 (en) * | 1980-04-09 | 1984-08-08 | Feldmühle Aktiengesellschaft | Flotation apparatus for deinking fibrous suspensions |
US4981582A (en) * | 1988-01-27 | 1991-01-01 | Virginia Tech Intellectual Properties, Inc. | Process and apparatus for separating fine particles by microbubble flotation together with a process and apparatus for generation of microbubbles |
US6960294B2 (en) * | 2001-06-12 | 2005-11-01 | Hydrotreat, Inc. | Apparatus for the separation of solids from liquids by dissolved gas floatation |
AT410406B (en) * | 2001-09-17 | 2003-04-25 | Andritz Ag Maschf | METHOD AND DEVICE FOR VENTILATING A LIQUID WITH GAS |
BRPI0807331B1 (en) * | 2007-02-26 | 2020-10-06 | Newcastle Innovation Limited | PARTICLE SEPARATION METHOD |
-
2010
- 2010-06-16 DE DE202010009140U patent/DE202010009140U1/en not_active Expired - Lifetime
- 2010-07-17 DE DE102010027448A patent/DE102010027448A1/en not_active Withdrawn
-
2011
- 2011-05-21 EP EP11755240.6A patent/EP2582464A2/en not_active Withdrawn
- 2011-05-21 WO PCT/DE2011/001095 patent/WO2011157253A2/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2484862A1 (en) * | 1980-06-18 | 1981-12-24 | Inst Nat Rech Chimique | Injector for contacting gas with liq. to form emulsion - injects high speed gas co-current at low angle of incidence |
US4844873A (en) * | 1984-11-30 | 1989-07-04 | Institut National De Recherche Chimique Applique | Separation and recovery of solids from liquids containing them using the ionic flotation process |
DE4126397A1 (en) | 1991-08-09 | 1993-02-11 | Europ Chemical Ind | METHOD AND DEVICE FOR CREATING FOAM |
DE4201913A1 (en) | 1992-01-24 | 1993-07-29 | Anton Ruef | Sepn. of oil etc. from sludges - by flotation with air which is recirculated after cooling, removing condensate and opt. heating |
DE10251923A1 (en) | 2002-11-08 | 2004-05-19 | Fan Separator Gmbh | Gas and liquid mixing system for producing liquid laden with micro-bubbles for flotation mineral separating plants has air and liquid compressor feeding high-pressure fluid to intake of mixing pump |
Also Published As
Publication number | Publication date |
---|---|
WO2011157253A4 (en) | 2012-06-07 |
EP2582464A2 (en) | 2013-04-24 |
WO2011157253A2 (en) | 2011-12-22 |
DE202010009140U1 (en) | 2010-10-21 |
WO2011157253A3 (en) | 2012-04-19 |
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R081 | Change of applicant/patentee |
Owner name: JUAN VALDIVIA GMBH, DE Free format text: FORMER OWNERS: JUAN VALDIVIA GMBH, 34537 BAD WILDUNGEN, DE; RITHCO GMBH, 47803 KREFELD, DE Effective date: 20130214 Owner name: RITHCO PAPERTEC GMBH, DE Free format text: FORMER OWNERS: JUAN VALDIVIA GMBH, 34537 BAD WILDUNGEN, DE; RITHCO GMBH, 47803 KREFELD, DE Effective date: 20130214 Owner name: JUAN VALDIVIA GMBH, DE Free format text: FORMER OWNER: JUAN VALDIVIA GMBH, 34537 BAD WILDUNGEN, DE Effective date: 20130121 Owner name: JUAN VALDIVIA GMBH, DE Free format text: FORMER OWNER: JUAN VALDIVIA GMBH, RITHCO GMBH, , DE Effective date: 20130214 Owner name: RITHCO PAPERTEC GMBH, DE Free format text: FORMER OWNER: JUAN VALDIVIA GMBH, 34537 BAD WILDUNGEN, DE Effective date: 20130121 Owner name: RITHCO PAPERTEC GMBH, DE Free format text: FORMER OWNER: JUAN VALDIVIA GMBH, RITHCO GMBH, , DE Effective date: 20130214 |
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Representative=s name: SPERLING, FISCHER & HEYNER PATENTANWAELTE, DE Effective date: 20130214 |
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R120 | Application withdrawn or ip right abandoned |
Effective date: 20130928 |