EP3055071A1 - Verfahren und dispergierungsvorrichtung zur erzeugung eines dispergierten fluidgemischs - Google Patents
Verfahren und dispergierungsvorrichtung zur erzeugung eines dispergierten fluidgemischsInfo
- Publication number
- EP3055071A1 EP3055071A1 EP14784421.1A EP14784421A EP3055071A1 EP 3055071 A1 EP3055071 A1 EP 3055071A1 EP 14784421 A EP14784421 A EP 14784421A EP 3055071 A1 EP3055071 A1 EP 3055071A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- volume flow
- liquid
- mixing
- feed
- 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.)
- Granted
Links
Classifications
-
- 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
- B03D1/242—Nozzles for injecting gas into the flotation tank
-
- 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
- B01F23/2323—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 by circulating the flow in guiding constructions or conduits
- B01F23/23231—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 by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
-
- 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
- B01F25/3124—Injector 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
- B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
-
- 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
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
Definitions
- the invention relates to a method for producing a dispersed fluid mixture, wherein at least one gaseous and at least one liquid fluid are each fed at a specific volume flow into a dispersion device, wherein the at least one gaseous fluid comprises gas bubbles are formed, which are dispersed in the at least one liquid fluid.
- dispersed fluid mixtures consisting of a gaseous fluid finely dispersed in a liquid fluid in the form of gas bubbles is required in many fields of technology.
- the defined generation of dispersed fluid mixtures for flotation deposition processes in which the particular physicochemical properties, in particular the wettability, of the surface of solid particles contained in a suspension is utilized is of great importance.
- the principle of the flotation separation which z. B. is used in the mining and paper industry, essentially based on introducing into a corresponding suspension of gas bubbles, to which connect the separated from the suspension of solid particles.
- the gas bubbles with the attached solid particles are enriched at an interface from which the solid particles can be separated.
- the efficiency of such flotation deposition processes depends significantly on the specific gas bubble surface area, ie the gas bubble surface area per unit gas volume, since this determines the interaction between the gas bubbles and the solid particles to be separated.
- the specific gas bubble surface is inversely proportional to the gas bubble size, ie typically the gas bubble diameter. decision speaking, larger volumes of solid particles can generally be separated quantitatively with smaller gas bubbles.
- the size of the gas bubbles must not be too small, since too small gas bubble sizes cause too low a buoyancy force acting on the gas bubbles, so that the solid particles to be separated can no longer be transported to the interface. It follows that the targeted adjustment of a specific gas bubble size or gas bubble size distribution is of great importance for the efficiency of corresponding flotation deposition processes.
- the generation of gas bubbles or the setting of a specific gas bubble size distribution is carried out to date, in particular by the fact that a gaseous fluid is passed through a nozzle device.
- the gas bubbles thus produced are fed to the suspension containing the solid particles to be separated.
- the use of agitators introduces shear forces that can influence the gas bubble size.
- the size of the gas bubbles thus depends essentially on the gas volume flow through the nozzle device and on the shear forces generated by the agitators, so that the setting of a specific gas bubble size distribution represents a regulation and especially energy-intensive technical approach.
- the invention has for its object to provide a method for producing a dispersed fluid mixture, which allows an improved adjustment of a specific gas bubble size distribution.
- the object is achieved by a method of the type mentioned, which is characterized in that a certain gas bubble size of the gas bubbles formed from the gaseous fluid is adjusted by a certain volume flow ratio between the gaseous fluid and the liquid fluid.
- gaseous fluid in short a gas such.
- a liquid fluid in short a liquid such.
- water or one, in particular aqueous suspension each supplied with a certain volume flow in a dispersing device.
- gas bubbles are generated from the gaseous fluid, typically by means of a nozzle device, ie the gaseous fluid is separated into individual gas bubbles, which subsequently disperse, ie distribute, gas bubbles in the liquid fluid.
- the volume flow of the gaseous fluid can be referred to as gas volume flow, the volume flow of the liquid fluid as liquid volume flow.
- the volume flow ratio is thus understood to mean the quotient of the volume flow of the gaseous fluid to the volume flow of the liquid fluid, or vice versa, and hence the quotient of the ratio of the fluids supplied to the dispersion device (per unit time).
- the principle according to the invention therefore represents a special possibility of generating desired gas bubble sizes or a desired gas bubble size distribution, the ratio of the respective volume flows relating to the gaseous and the liquid fluid being used as control or
- Control size is used. In this case, the knowledge is made use of that targeted regulation or control of the respective fluid volume flows and thus the gas bubble sen size influencing variables, in particular shear rates, a targeted generation of a specific gas bubble size or gas bubble size distribution allowed.
- gas bubble size is intended in particular to refer to the diameter of a gas bubble.
- gas bubble size always means a mean, ie average gas bubble size of the gas bubbles contained in a certain volume. The term “gas bubble size” is therefore to be understood as average gas bubble size.
- the above-described regulation or control of corresponding feed units of a feed device provided for the supply of the gaseous fluid and of the liquid fluid can take place via one or more control devices associated therewith as part of a dispersing device.
- the volume flow of the gaseous fluid, d. H. the gas volume flow typically greater than the volume flow of the liquid
- the volume flow of the liquid fluid, d. H. the liquid volume flow in a range between 1 and 80%, in particular in a range between 5 and 50%, of the volume flow of the gaseous fluid, d. H. the gas volume flow.
- the liquid volume flow can therefore be adjusted, for example, to 6% of the gas volume flow.
- This is z. B. given when the gas flow rate 100 volumes per unit time, d. H. z. B. 100 liters per minute, and the liquid volume flow 6 volume units per unit time, d. H. z. B. 6 liters per minute.
- the gas volume flow is used as a driving force for the suction or supply of the liquid volume flow.
- the volume flow ratio between the gaseous fluid and the liquid fluid is adjusted so that gas bubbles with a diameter smaller than 1 mm, in particular in the range between 0.1 and 0.9 mm, are generated.
- the setting of a specific gas bubble size is expedient in all cases also taking into account the respective chemical-physical composition of the volume flows and possibly other substances added in the context of the method according to the invention. If the dispersed fluid mixture produced by the process according to the invention is used in flotation deposition processes, it is of course also necessary to take into account the particular properties of the solid particles to be separated off or the suspension containing them.
- a means for preventing coalescence of the gas bubbles to be formed or formed from the gaseous fluid can be added to the gaseous fluid and / or the liquid fluid.
- the agent therefore serves, in particular, to prevent coalescence between gas bubbles, ie to prevent gas bubbles of a certain gas bubble size from becoming gas bubbles having a comparatively larger gas bubble size. Consequently, it is thus possible to set a gas bubble size (distribution) by regulation, via a corresponding regulation or control of respective volume flows. especially reduction or prevention of coalescence effects to a large extent.
- organic compounds in particular hydroxy or ether compounds, or mixtures of organic compounds, in particular mixtures of hydroxy or ether compounds can be used. Specifically, it is z.
- non-ionic surfactants such as aliphatic alcohols such. Hexanol or methyl isobutylcarbinol, terpene alcohols, and / or polyglycol ethers.
- the concentration of the added coalescing preventing agent in the gaseous fluid and / or the liquid fluid may be in the range of 50 to 300 ppm (parts per million), more preferably in the range of 100 to 200 ppm. Of course, in exceptional cases, the concentration may also be below 50 ppm and / or above 300 ppm.
- the gaseous fluid is already converted to gas bubbles in the dispersing device before mixing with the liquid fluid. It is therefore possible, in contrast to the principles known from the prior art, already a correspondingly dispersed fluid mixture, consisting of dispersed in a liquid fluid gas bubbles, in a reactor vessel, such as. As a flotation cell, and introduce appropriate gas bubbles not only in the reactor vessel, such. B. the flotation cell to produce.
- a dispersing device which has a feed device with at least two separate feed units, each of which is set up to supply a fluid having a certain volume flow, a mixing device connected downstream of the feed device for mixing the fluids fed into the feed device and one of the mixing device downstream distributor device, comprising at least one outlet opening for the exit of the mixed in the mixing means fluids from the dispersion device comprises.
- a dispersing device i. H. a device for producing a dispersed fluid mixture, comprising:
- a feed device with at least two separate feed units, each of which is set up to supply a fluid having a certain volume flow
- a distribution device downstream of the mixing device comprising at least one outlet opening for the exit of the mixed in the mixing means fluids from the dispersing device.
- the feeding device or the feed units belonging thereto are equipped or connected with a suitable control device, via which the respective volume flows of the fluids to be supplied are in particular independently controllable or controllable.
- the dispersing device according to the invention is therefore designed, in particular, for carrying out the method according to the invention described above. Consequently, with regard to the dispersing device according to the invention, all statements in connection with the method according to the invention apply analogously.
- the mixing device comprises at least one elongated, in particular conical or frustoconical mixing body delimiting a mixing space, the cross-sectional area of the mixing space starting from the end facing the feed device to the end facing the distributor device, especially continuous, extended.
- the mixing space serves for intimate mixing between the gas bubbles and the liquid fluid, ie the fluids contained in the dispersed fluid mixture. Due to the special cross-sectional dimensioning of the mixing space, ie its enlargement in the flow direction or in the direction of the distribution device connected downstream of the mixing device, a diffuser effect can be realized, ie the flow speed of the dispersed fluid mixture is reduced. It is thus possible to establish an equilibrium state between the gas bubbles formed and the liquid fluid in the dispersed fluid mixture.
- the feed units belonging to the feed device can each have at least one feed body delimiting a feed space, wherein a first feed body is received at least in sections in a second feed body.
- the gaseous fluid is typically supplied via the first feed body, and the liquid fluid is typically supplied via the second feed body. Nevertheless, it is also possible that the liquid fluid is supplied via the first supply body and the gaseous fluid is supplied via the second supply body.
- the first supply element associated with the first supply unit can have at least one nozzle device, in particular provided on a conical or frustoconical section.
- the nozzle device serves, in particular, for converting fluid supplied into the first supply body, which is typically the gaseous fluid, into gas bubbles, ie. H. to divide so that form gas bubbles.
- the arrangement of the nozzle device on a conical or frustoconical portion, d. H. a section whose cross-sectional area decreases in the flow direction or in the direction of the nozzle device, advantageous because the fluid is accelerated before entering the nozzle device, which serves to set a defined relative velocity between the two fluids and thus is essential for the formation of gas bubbles.
- Fig. A schematic diagram of a dispersion device for carrying out a method according to an embodiment of the invention.
- the dispersion device 1 shown in the figure as a basic representation serves to produce a dispersed fluid mixture and can thus also be referred to as a device for producing a dispersed fluid mixture.
- the dispersed fluid mixture contains a gaseous fluid, thus a gas such.
- a gas such.
- air, nitrogen, etc. which in the form of gas bubbles, in a liquid fluid, thus a liquid such.
- a liquid fluid thus a liquid such.
- the dispersing device 1 comprises a feed device 2, a mixing device 3 connected downstream thereof and a distributor device 4 connected downstream of the mixing device 3.
- the feed device 2 comprises two separate feed units 5, 6, which are each designed to supply a fluid having a specific volume flow.
- the feed units 5, 6 each have a feed space defining a cylindrical feed body 7, 8.
- the feed unit 7 belonging to the feed unit 5 is partially accommodated in the feed unit 8 belonging to the feed unit 6.
- the feeders 7, 8 preferably have axisymmetric cross-sections, e.g. B. in cylindrical or conical (frusto-conical) shape.
- the Zulite Economics 7, 8 can also other cross-sectional geometries, such. B. oval or polygonal have.
- the feed body 7 belonging to the feed unit 5 is provided with a conical or frustoconical section which is closed at the end by a nozzle device 9 having a plurality of channels or openings.
- the cross-sectional area of the section of the feed body 7 therefore tapers continuously in the flow direction indicated by the arrows in the feed body 7 Fluids, causing an acceleration of the fluid flowing through this.
- the feed device 2 is respectively the associated feed units 5, 6 are equipped with a control device 10 and connected, via which the respective volume flows of the feed in the body 7, 8 supplied fluids can be controlled or controlled.
- the volume flows supplied to the feed bodies 7, 8 are a gas volume flow GV and a liquid volume flow FV.
- the gas volume flow GV is supplied via the feed device 5 with a specific volume throughput controllable via the control device 10; the liquid volume flow FV is supplied via the feed device 6 with a specific volume throughput controllable via the control device 10.
- the gas volume flow GV is, as mentioned, a gas such. As air, nitrogen, etc.
- the gas flow GV may also contain other process gas.
- the liquid volume flow FV is a liquid, such as. As water or a mixture of water and other substances, or solvents and / or liquid reagents.
- means for preventing coalescence of gas bubbles formed from the gas volume flow GV can be contained.
- These agents correspond to the abovementioned substances admixed with the water.
- these agents are typically organic compounds, in particular hydroxy or ether compounds, or mixtures of organic compounds, in particular mixtures of hydroxy or ether compounds.
- these agents may be aliphatic alcohols, such as. Hexanol or terpene alcohols, and / or polyglycol ethers.
- concentration of funds in the Liquid volume flow FV is typically in a range between 50 and 200 ppm. Depending on the application, however, significantly lower or higher concentrations can be provided.
- the feed device 2 is connected downstream of the mixing device 3 in the flow direction of the volume flows.
- the mixing device 3 comprises a predominantly conical or truncated cone-shaped mixing body 11 delimiting a mixing space.
- the cross-sectional area of the mixing body 11 and, accordingly, the flow cross-section of the mixing space bounded by the mixing body 11 extend continuously from the end facing the feeding device 2 to the mixing body 11 the distributor device 4 facing the end.
- the mixing body 11 acts as a diffuser, since the flow velocity of the fluid mixture flowing through it is reduced by the widening cross-sectional area. This favors the formation of a state of equilibrium within the fluid mixture, i. H. a state of equilibrium between the formed gas bubbles and the liquid.
- the mixing device 3 is connected downstream of the distributor device 4 in the flow direction of the volume flows.
- the distributor device 4 has a preferably cylindrical distributor body 12 with outlet openings 13, which are distributed circumferentially on its lateral surface, for the exit of the distributor
- the size of the gas bubbles formed from the gas volume flow GV is adjusted by a special regulation or control of the volume flow ratio between the gas volume flow GV and the liquid volume flow FV implemented via the control device 10.
- a targeted regulation or control of the respective volume flows ie in particular the ratio of these to each other, a wide range of gas bubble sizes can be covered with a single nozzle device 9.
- mean gas bubble sizes of ty- Typically, about 50 ⁇ to produce by a certain gas flow GV is combined with a certain liquid flow rate FV.
- the dispersing device 1 in addition to the use in the context of a Flotationsabscheidungsreaes z. B. also in the paper industry, in particular paper processing to use, since the generation of defined gas bubble sizes is also advantageous to very small particles such. B. Farbstoffpigmen- te to separate via flotation.
- the regulation or control of the volume flows is such that the gas volume flow GV is many times higher than the liquid volume flow FV.
- the liquid volume flow FV can be in a range between 1 and 80%, in particular in a range between 5 and 50%, of the gas volume flow GV.
- the liquid volume flow FV is adjusted so that it is 6% of the gas volume flow GV, which z. B. is given
- the gas volume flow GV 100 volume units per unit time ie, for example, 100 liters per minute
- the liquid volume flow FV 6 volume units per unit time ie, for example 6 liters per minute
- the cross-sectional ratio between the cross-sectional area AI of the nozzle device 9, from which the gas bubbles emerge, and the cross-sectional area A2 of the inlet region of the mixing device 3 of 0.2 gas bubble sizes of about 0.5 mm are generated.
- the gas volume flow GV can be considered or used as a propulsion jet, which, taking advantage of the Venturi effect, aspirates the liquid volume flow FV from the feed body 8 into the feed device 2 and subsequently the Mixer 3 allows.
- Suction or conveying devices (not shown), via which the liquid volume flow FV is formed or accelerated, can thus be compared in terms of their power consumption. be made. Optionally, such suction devices can even be dispensed with.
- fluid mixture formed in the dispersion device 1 is to be introduced into a suspension containing a liquid and solid particles to be separated therefrom in the course of a flotation deposition process.
- the suspension may be z. B. be a pulp or pulp, from which solid particles are separated as recyclable particles.
- the dispersion device 1 is completely in a reactor vessel 14, d. H. in particular a flotation cell, immersed. It follows that with the dispersing device 1 already a dispersed gas bubbles containing fluid mixture is introduced into the reactor vessel 14. It is therefore possible, in contrast to the principles known from the prior art, already a suitably dispersed fluid mixture, consisting of dispersed in a liquid fluid gas bubbles, in a reactor vessel 14, such as. As a flotation cell to bring and corresponding gas bubbles not only in a reactor vessel 14 to produce.
- the process for producing a dispersed fluid mixture which can be achieved via the dispersing device 1 has a number of advantages, in particular when it is used in the context of a flotation-separation process.
- Mixing device 3 associated mixing body 11 prevailing flow profile with the same power input, which essentially results from the pressure conditions to be set, a significantly higher proportion of ultrafine bubbles, d. H.
- Gas bubbles are formed with a gas bubble size below 1 mm, which in turn causes an increase of the specific gas bubble surface and thus allows a larger amount of separated solid particles.
- the formation of relatively narrowly distributed shear rates, which is possible with the dispersing device 1, can produce and regulate a narrow distribution of gas bubble size. This is hardly possible, for example, with stirrers known from the prior art, since in areas outside the stirrer, for example, B. at the Rlickblatt Spotifyn, in
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013220361.6A DE102013220361A1 (de) | 2013-10-09 | 2013-10-09 | Verfahren zur Erzeugung eines dispergierten Fluidgemischs |
| PCT/EP2014/071054 WO2015052056A1 (de) | 2013-10-09 | 2014-10-01 | Verfahren und dispergierungsvorrichtung zur erzeugung eines dispergierten fluidgemischs |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3055071A1 true EP3055071A1 (de) | 2016-08-17 |
| EP3055071B1 EP3055071B1 (de) | 2023-07-05 |
| EP3055071C0 EP3055071C0 (de) | 2023-07-05 |
Family
ID=51730501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14784421.1A Active EP3055071B1 (de) | 2013-10-09 | 2014-10-01 | Verfahren zur erzeugung eines dispergierten fluidgemischs |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3055071B1 (de) |
| DE (1) | DE102013220361A1 (de) |
| WO (1) | WO2015052056A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966941A (zh) * | 2019-05-13 | 2019-07-05 | 江苏炬焰智能科技有限公司 | 碳酸泉混合器 |
| CN112023740B (zh) * | 2020-07-10 | 2022-03-01 | 湘潭大学 | 一种用于颗粒破碎的气固混合器 |
| CN112138556B (zh) * | 2020-10-21 | 2025-07-11 | 大庆德美特尔能源科技有限公司 | 一种提升固液气混合性能的混合系统 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4226719A (en) * | 1978-07-10 | 1980-10-07 | Woltman Robert B | Treating device for large bodies of water |
| US4634560A (en) * | 1984-02-29 | 1987-01-06 | Aluminum Company Of America | Aspirator pump and metering device |
| US4752383A (en) * | 1986-08-05 | 1988-06-21 | The United States Of America As Represented By The Secretary Of The Interior | Bubble generator |
| US5266240A (en) * | 1991-03-20 | 1993-11-30 | Servicios Corporativos Frisco, S.A. De C.V. | Flotation reactor with external bubble generator |
| US20040094848A1 (en) * | 2002-08-01 | 2004-05-20 | Lange Neville Ernest | Gas eductors and gas eductor flotation separators |
| AU2009217223B2 (en) * | 2008-02-22 | 2013-10-24 | Breakthrough Technologies Pty Ltd | Method for desalinating water |
| US9115006B2 (en) * | 2010-01-14 | 2015-08-25 | Spintek Filtration, Inc. | Gas bubble generation for coalescing |
| EP2572778B1 (de) * | 2011-09-23 | 2017-03-08 | Primetals Technologies Germany GmbH | Flotationsmaschine mit einer Dispergierdüse, sowie Verfahren zu deren Betrieb |
-
2013
- 2013-10-09 DE DE102013220361.6A patent/DE102013220361A1/de not_active Withdrawn
-
2014
- 2014-10-01 WO PCT/EP2014/071054 patent/WO2015052056A1/de not_active Ceased
- 2014-10-01 EP EP14784421.1A patent/EP3055071B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013220361A1 (de) | 2015-04-09 |
| WO2015052056A1 (de) | 2015-04-16 |
| EP3055071B1 (de) | 2023-07-05 |
| EP3055071C0 (de) | 2023-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0035243B1 (de) | Verfahren und Vorrichtung zur Flotation | |
| DE69110227T2 (de) | In-Linie-Dispersion eines Gases in einer Flüssigkeit. | |
| DE69329061T2 (de) | Vorrichtung zur lösung eines gases in bzw zur mischung einer flüssigkeit | |
| DE2634496C2 (de) | Injektor zur Begasung einer Flüssigkeit | |
| AT410406B (de) | Verfahren und vorrichtung zur belüftung einer flüssigkeit mit gas | |
| EP2482989A1 (de) | Vorrichtung, damit ausgestattete flotationsmaschine, sowie verfahren zu deren betrieb | |
| CH616393A5 (de) | ||
| WO2013037592A1 (de) | Mischeinrichtung zum mischen von agglomerierendem pulver in einer suspension | |
| EP2572778B1 (de) | Flotationsmaschine mit einer Dispergierdüse, sowie Verfahren zu deren Betrieb | |
| DE2151206C2 (de) | Vorrichtung zum Herstellen einer Emulsion | |
| EP2266704A1 (de) | Pneumatische Flotationsmaschine und Flotationsverfahren | |
| DE102014012666A1 (de) | Verfahren und Vorrichtung zur Reinigung von verunreinigten Feststoff-Flüssigkeits-Gemischen | |
| EP1293255B1 (de) | Verfahren und Vorrichtung zur Abtrennung von Störstoffen aus Suspensionen durch Flotation | |
| EP3055071B1 (de) | Verfahren zur erzeugung eines dispergierten fluidgemischs | |
| DE3529638A1 (de) | Begasungsvorrichtung fuer eine flotationseinrichtung und deren verwendung in papierstoffanlagen, insbesondere zum deinken von altpapier | |
| DE2812105A1 (de) | Verfahren und vorrichtung zum trennen von stoffen durch flotation | |
| EP3423183B1 (de) | Mehrphasen-schlaufenreaktor und verfahren zum betrieb | |
| CH630046A5 (en) | Method for the continuous entry of air or other oxygen-containing gases into an activated-sludge-containing wastewater or fermentation broths | |
| DE3120202A1 (de) | Einrichtung zum deinken von altpapier durch flotation | |
| DE2359656C3 (de) | Vorrichtung zum Klären von feste Stoffe enthaltendem Abwasser o.dgl. Flüssigkeiten | |
| AT513135B1 (de) | Belüftungsvorrichtung und Verfahren mit Stoffansaugung im Injektor | |
| DE2410574A1 (de) | Druckstrahler zum begasen von fluessigkeiten, insbesondere von fermentationsfluessigkeiten und abwasser | |
| DE202017002548U1 (de) | Anordnung zur Begasung von Flüssigkeiten mit einem rohrförmigen Begaser | |
| DE102008056040A1 (de) | Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension durch Flotation sowie Vorrichtung zu seiner Durchführung | |
| EP2244594A1 (de) | Vorrichtung zum begasen von flüssigkeiten |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20160509 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| PUAG | Search results despatched under rule 164(2) epc together with communication from examining division |
Free format text: ORIGINAL CODE: 0009017 |
|
| 17Q | First examination report despatched |
Effective date: 20190830 |
|
| B565 | Issuance of search results under rule 164(2) epc |
Effective date: 20190830 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: B01F 15/04 20060101ALI20190827BHEP Ipc: B01F 3/04 20060101ALI20190827BHEP Ipc: B03D 1/24 20060101AFI20190827BHEP Ipc: B01F 5/04 20060101ALI20190827BHEP |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PRIMETALS TECHNOLOGIES AUSTRIA GMBH |
|
| REG | Reference to a national code |
Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: B03D0001240000 Ipc: B01F0023232000 Ref country code: DE Ref legal event code: R079 Ref document number: 502014016626 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: B03D0001240000 Ipc: B01F0023232000 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: B03D 1/24 19680901ALI20230105BHEP Ipc: B01F 35/83 20220101ALI20230105BHEP Ipc: B01F 25/312 20220101ALI20230105BHEP Ipc: B01F 23/232 20220101AFI20230105BHEP |
|
| INTG | Intention to grant announced |
Effective date: 20230131 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1584312 Country of ref document: AT Kind code of ref document: T Effective date: 20230715 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502014016626 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| U01 | Request for unitary effect filed |
Effective date: 20230705 |
|
| U07 | Unitary effect registered |
Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI Effective date: 20230712 |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
| U20 | Renewal fee for the european patent with unitary effect paid |
Year of fee payment: 10 Effective date: 20231031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231006 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231105 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231005 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231105 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231006 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502014016626 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| 26N | No opposition filed |
Effective date: 20240408 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231001 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231001 |
|
| U20 | Renewal fee for the european patent with unitary effect paid |
Year of fee payment: 11 Effective date: 20241031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20141001 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20141001 |
|
| U20 | Renewal fee for the european patent with unitary effect paid |
Year of fee payment: 12 Effective date: 20251031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230705 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20251022 Year of fee payment: 12 |