WO1993012872A1 - Homogenizer and its use - Google Patents

Homogenizer and its use Download PDF

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Publication number
WO1993012872A1
WO1993012872A1 PCT/EP1991/002499 EP9102499W WO9312872A1 WO 1993012872 A1 WO1993012872 A1 WO 1993012872A1 EP 9102499 W EP9102499 W EP 9102499W WO 9312872 A1 WO9312872 A1 WO 9312872A1
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WO
WIPO (PCT)
Prior art keywords
homogenizer
rotor
emulsion
stator
surfactant
Prior art date
Application number
PCT/EP1991/002499
Other languages
German (de)
French (fr)
Inventor
Heino Stache
Original Assignee
Heino Stache
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 Heino Stache filed Critical Heino Stache
Priority to EP92901051A priority Critical patent/EP0575328B1/en
Priority to AU90929/91A priority patent/AU9092991A/en
Priority to DE59106442T priority patent/DE59106442D1/en
Priority to AT92901051T priority patent/ATE127363T1/en
Priority to PCT/EP1991/002499 priority patent/WO1993012872A1/en
Publication of WO1993012872A1 publication Critical patent/WO1993012872A1/en

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Classifications

    • 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
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B01F27/2722—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces provided with ribs, ridges or grooves on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/911—Axial flow

Definitions

  • the present invention relates to a homogenizer and its use.
  • a homogenizer is known from German utility model G 8912938.5. This comprises a stator, a rotor and a shaft receiving the rotor.
  • the stator and rotor are cylindrical and their surfaces facing each other are parallel to the shaft, ie axially
  • the homogenizer is said to be suitable for producing an emulsion of diesel fuel and water, the particle size of which does not exceed 1 ⁇ m and which has a service life of approximately 10 minutes.
  • the present invention is therefore based on the object of providing a homogenizer with which a
  • Diesel fuel water emulsion can be produced without such disadvantages.
  • the width of the grooves and webs are mounted transversely to the shaft, ie radially.
  • Grinding gap between stator and rotor is preferably constant.
  • the constant width can be set as required.
  • Rotors in the range customary for rotors of homogenizers preferably in the range of 2500-5000 rpm.
  • the shaft exiting on one side is sealed with a sealing ring which is reinforced on the unpressurized side by a Teflon ring.
  • the adjoining surfaces of the Simmerring and the Teflon ring are preferably matched to one another
  • the homogenizer has one or more, preferably two, feed lines for the substances to be introduced.
  • the homogenizer according to the invention is suitable for the following reasons.
  • the water content can be selected depending on the diesel fuel used, preferably it is 10-20%, based on the total volume of the emulsion.
  • To produce such a diesel fuel and water are introduced into the homogenizer under pressure in the range of 0.25 bar to 25 bar.
  • the emulsion obtained then has one
  • Particle size from l ⁇ im and smaller Particle size from l ⁇ im and smaller. Their service life is approx. 8 minutes. It has been shown that the service life of the emulsion can be extended to several days if a surfactant, preferably with an HLB value of about 8, is added to the emulsion or already when the emulsion is being prepared in the homogenizer.
  • the amount of the surfactant is advantageously 0.1-1%, based on the total volume of the emulsion.
  • a similar extension of the service life of the emulsion is achieved if the biocatalyst is used instead of the surfactant
  • An emulsion produced according to the invention can be any commercially available ion stabilizer.
  • An emulsion produced according to the invention can be any commercially available ion stabilizer.
  • the homogenizer according to the invention can be attached directly to the engine of the diesel motor vehicle. It is also suitable for installation in boiler combustion plants. It is also used in all areas where long-term emulsions or suspensions are required, such as in the manufacture of cosmetics, pharmaceuticals and food. In addition, it should be noted that it is the
  • the homogenizer according to the invention makes it possible to convert diesel fuel into a form even without the addition of water, the combustion and emission values of which are favorable.
  • An embodiment of the homogenizer according to the invention is shown in the accompanying figures. It shows
  • Figure 1 is an overview drawing of the homogenizer, Figure 2 the stator with surface structure Figure 3 the rotor with surface structure, Figure 4 flange, inlet side and
  • Figure 5 Flange, outlet side.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Saccharide Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Colloid Chemistry (AREA)

Abstract

An homogenizer has a stator, rotor and a rotor-supporting shaft. Stator and rotor are cylindrically designed and their facing surfaces have grooves and lands provided with bores. The bores are regularly spaced apart and when the lands are placed side by side they are mutually offset by half their spacing. Grooves and lands extend in the radial direction.

Description

Homogenisator und seine Verwendung  Homogenizer and its use
Die vorliegende Erfindung betrifft einen Homogenisator und seine Verwendung. The present invention relates to a homogenizer and its use.
Ein Homogenisator ist aus dem deutschen Gebrauchsmuster G 8912938.5 bekannt. Dieses umfaßt einen Stator, einen Rotor und eine den Rotor aufnehmende Welle. Stator und Rotor sind zylindrisch ausgebildet und ihre zueinander gerichteten Oberflächen weisen parallel zur Welle, also in axialer A homogenizer is known from German utility model G 8912938.5. This comprises a stator, a rotor and a shaft receiving the rotor. The stator and rotor are cylindrical and their surfaces facing each other are parallel to the shaft, ie axially
Richtung, verlaufende Nuten und mit Bohrungen versehene Stege auf, wobei die Bohrungen in regelmäßigen Abständen und bei nebeneinanderliegenden Stegen jeweils um die Hälfte ihres Abstandes voneinander versetzt angebracht sind. Der Homogenisator soll sich zur Herstellung einer Emulsion aus Dieselkraftstoff und Wasser eignen, deren Partikelgrδße l,um nicht übersteigt und die eine Standzeit von ca. 10 min aufweist. Direction, extending grooves and webs provided with bores, the bores being offset at regular intervals and offset by half their distance from one another in the case of adjacent webs. The homogenizer is said to be suitable for producing an emulsion of diesel fuel and water, the particle size of which does not exceed 1 µm and which has a service life of approximately 10 minutes.
Es hat sich gezeigt, daß diese Werte mit dem angesprochenen Homogenisator nicht erreicht werden können. Vielmehr liegt die erreichte Partikelgröße im Bereich von 20-30 μm und die Standzeit beträgt 0,5 min. Eine solche Emulsion ist ungünstig hinsichtlich ihrer Verbrennung und der dabei entstehenden Emissionswerte. It has been shown that these values cannot be achieved with the homogenizer mentioned. Rather, the particle size achieved is in the range of 20-30 μm and the service life is 0.5 min. Such an emulsion is unfavorable with regard to its combustion and the resulting emission values.
Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde, einen Homogenisator bereitzustellen, mit dem eine The present invention is therefore based on the object of providing a homogenizer with which a
Dieselkraftstoff-Wasser-Emulsion ohne solche Nachteile hergestellt werden kann. Diesel fuel water emulsion can be produced without such disadvantages.
Erfindungsgemäß wird dies mit dem eingangs erwähnten According to the invention, this is mentioned with the above
Homogenisator dadurch erreicht, daß die Nuten und Stege quer zur Welle, also radial-verlaufend, angebracht sind. Im erfindungsgemäßen Homogenisator ist die Breite des Homogenizer achieved in that the grooves and webs are mounted transversely to the shaft, ie radially. In the homogenizer according to the invention, the width of the
Mahlspalts zwischen Stator und Rotor vorzugsweise konstant. In besonders bevorzugter Ausführungsform kann die konstante Breite je nach Bedarf eingestellt werden.  Grinding gap between stator and rotor is preferably constant. In a particularly preferred embodiment, the constant width can be set as required.
Im erfindungsgemäßen Homogenisator liegt die Drehzahl desIn the homogenizer according to the invention, the speed of the
Rotors im für Rotoren von Homogenisatoren üblichen Bereich, vorzugsweise im Bereich von 2500-5000 Upm. Erfindungsgemäß ist bei dem Homogenisator die einseitig austretende Welle mit einem Simmerring abgedichtet, der auf der drucklosen Seite durch einen Teflonring verstärkt ist. Vorzugsweise sind die aneinandergrenzenden Oberflächen des Simmerrings und des Teflonrings passend aufeinander Rotors in the range customary for rotors of homogenizers, preferably in the range of 2500-5000 rpm. According to the invention, the shaft exiting on one side is sealed with a sealing ring which is reinforced on the unpressurized side by a Teflon ring. The adjoining surfaces of the Simmerring and the Teflon ring are preferably matched to one another
abgestimmt. Erfindungsgemäß weist der Homogenisator eine oder mehrere, vorzugsweise zwei Zuführungsleitungen für die einzubringenden Stoffe auf.  Voted. According to the invention, the homogenizer has one or more, preferably two, feed lines for the substances to be introduced.
Der erfindungsgemäße Homogenisator eignet sich zur The homogenizer according to the invention is suitable for
Herstellung einer Emulsion aus Dieselkraftstoff und Wasser. Der Wasseranteil kann je nach verwendetem Dieselkraftstoff gewählt werden, vorzugsweise beträgt er 10-20%, bezogen auf das Gesamtvolumen der Emulsion. Zur Herstellung einer solchen werden Dieselkraftstoff und Wasser unter Druck im Bereich von 0,25 bar bis 25 bar in den Homogenisator eingeleitet. Die erhaltene Emulsion weist dann eine Production of an emulsion from diesel fuel and water. The water content can be selected depending on the diesel fuel used, preferably it is 10-20%, based on the total volume of the emulsion. To produce such a diesel fuel and water are introduced into the homogenizer under pressure in the range of 0.25 bar to 25 bar. The emulsion obtained then has one
Partikelgrδße von lΛim und kleiner auf. Ihre Standzeit liegt bei ca. 8 min. Es hat sich gezeigt, daß die Standzeit der Emulsion auf mehrere Tage verlängert werden kann, wenn ein Tensid, vorzugsweise mit einem HLB-Wert von ca. 8, der Emulsion oder bereits bei Herstellung der Emulsion im Homogenisator zugegeben wird. Günstigerweise beträgt die Menge des Tensids 0,1-1%, bezogen auf das Gesamtvolumen der Emulsion. Eine ähnliche Verlängerung der Standzeit der Emulsion wird erreicht, wenn anstelle des Tensids der Biokatalysator Particle size from lΛim and smaller. Their service life is approx. 8 minutes. It has been shown that the service life of the emulsion can be extended to several days if a surfactant, preferably with an HLB value of about 8, is added to the emulsion or already when the emulsion is being prepared in the homogenizer. The amount of the surfactant is advantageously 0.1-1%, based on the total volume of the emulsion. A similar extension of the service life of the emulsion is achieved if the biocatalyst is used instead of the surfactant
Bioclean (erhältlich bei der Firma Shieer BiotechnologyBioclean (available from Shieer Biotechnology
GmbH) zugegeben wird. Günstigerweise beträgt seine Menge 0,1%, bezogen auf das Volumen des eingesetzten Wassers. Von Vorteil ist es auch, das Tensid und den Biokatalysator gemeinsam einzusetzen. Ferner ist es günstig, einen GmbH) is added. Conveniently, its amount is 0.1%, based on the volume of the water used. It is also advantageous to use the surfactant and the biocatalyst together. It is also convenient to have one
handelsüblichen Ionenstabilisator beizugeben. Eine erfindungsgemäß hergestellte Emulsion kann also commercially available ion stabilizer. An emulsion produced according to the invention can
aufgrund ihrer langen Standzeit zwischengelagert werden und braucht nicht sofort verwendet werden. Ferner kann sie nahezu rückstandsfrei im Motor verbrannt werden. Auch führt sie zu einer Brennstoffersparnis von bis zu 15% und are stored temporarily due to their long service life and do not need to be used immediately. It can also be burned in the engine with virtually no residue. It also leads to fuel savings of up to 15% and
vermindert erheblich den Verschleiß an Kolbenringen und Ventilen. significantly reduces wear on piston rings and valves.
Der erfindungsgemäße Homogenisator kann direkt am Motor des Dieselkraftfahrzeuges angebracht werden. Auch eignet er sich zur Installation in Kesselbrennanlagen. Darüberhinaus findet er in allen Bereichen Anwendung, in denen langzeitbestandige Emulsionen oder Suspensionen gefordert sind, wie in der Kosmetik- , Arzneimittel- und Lebensmittelherstellung. Ergänzend ist darauf hinzuweisen, daß es der The homogenizer according to the invention can be attached directly to the engine of the diesel motor vehicle. It is also suitable for installation in boiler combustion plants. It is also used in all areas where long-term emulsions or suspensions are required, such as in the manufacture of cosmetics, pharmaceuticals and food. In addition, it should be noted that it is the
erfindungsgemäße Homogenisator ermöglicht, Dieselkraftstoff auch ohne Wasserzugabe in eine Form zu überführen, deren Verbrennungs- und Emissionswerte günstig sind. Ein Ausführungsbeispiel des erfindungsgemäßen Homogenisators ist in den beigefügten Figuren gezeigt. Dabei zeigt The homogenizer according to the invention makes it possible to convert diesel fuel into a form even without the addition of water, the combustion and emission values of which are favorable. An embodiment of the homogenizer according to the invention is shown in the accompanying figures. It shows
Abbildung 1 eine Übersichtszeichnung des Homogenisators, Abbildung 2 den Stator mit Oberflächenstruktur Abbildung 3 den Rotor mit Oberflächenstruktur, Abbildung 4 Flansch, Eintrittsseite und Figure 1 is an overview drawing of the homogenizer, Figure 2 the stator with surface structure Figure 3 the rotor with surface structure, Figure 4 flange, inlet side and
Abbildung 5 Flansch, Austrittsseite. Figure 5 Flange, outlet side.
ZUSAMMENSTELLUNG DER BEZUGSZEICHENCOMPILATION OF REFERENCES
====================================== ======================================
OREHRICHTUNG
Figure imgf000007_0001
BELUFTUN6SRICHTUNG DIRECTION
Figure imgf000007_0001
VENTILATION DIRECTION
E EINLASS A RUSLflSS  E INLET A RUSLFLSS
1 ROTOR 1 ROTOR
2 STATOR  2 STATOR
3 FLANSCH AUSTRITTSSEITE  3 FLANGE OUTPUT SIDE
H FLANSCH EINTRITTSSEITE  H FLANGE INPUT SIDE
5 FUSS  5 feet
6 KUPPLUNG ROTEX 38 AI.D  6 COUPLING ROTEX 38 AI.D
7 IhflOßECHSKANTSCHRAUBE M16x70 ( 12x)  7 hexagon socket screw M16x70 (12x)
8 DICHTRING CU 54 /49/8  8 CU 54/49/8 SEAL
9 STOPFEN 2"  9 PLUG 2 "
10 DICHTRING CU 50/42/2.5  10 CU 50/42 / 2.5 SEAL
11 EO-ROHRVERSCHRAUBUNG NW 35  11 EO PIPE FITTING NW 35
12 SIMMERRING 62/38/10 BA MIT STUTZRING VITON (1x) 12 SIMMERRING 62/38/10 BA WITH SUPPORT RING VITON (1x)
13 SIMMERRING 90/70/10 BA MIT STUTZRING VITON (2x) 14 NAOELAXIALKUGELLAGER NKX 50 (2x) 13 SIMMERRING 90/70/10 BA WITH VITON SUPPORT RING (2x) 14 NAOELAXIAL BALL BEARING NKX 50 (2x)
15 INNENRING IR 45/50/25  15 INNER RING IR 45/50/25
16 O-RING 120x5.3 VITON (2x)  16 O-RING 120x5.3 VITON (2x)
17 KEGEL-SCHMIERNIPPEL AM 10x1  17 CONE LUBRICATING NIPPLE ON 10x1

Claims

Patentansprüche Claims
1. Homogenisator, umfassend Stator, Rotor und den Rotor 1. Homogenizer, comprising stator, rotor and the rotor
aufnehmende Welle, wobei Stator und Rotor zylindrisch ausgebildet sind und ihre zueinander gerichteten  receiving shaft, wherein the stator and rotor are cylindrical and their facing each other
Oberflächen Nuten und mit Bohrungen versehene Stege aufweisen, wobei die Bohrungen in regelmäßigen Abständen und bei nebeneinanderliegenden Stegen jeweils um die Hälfte ihres Abstandes voneinander versetzt angebracht sind, dadurch gekennzeichnet, daß die Nuten und Stege radial-verlaufend angebracht sind.  Surfaces have grooves and webs provided with bores, the bores being offset at regular intervals and in the case of adjacent webs in each case offset by half of their distance from one another, characterized in that the grooves and webs are mounted in a radially extending manner.
2. Homogenisator nach Anspruch 1, dadurch gekennzeichnet, daß die Breite des Mahlspalts zwischen Stator und Rotor konstant ist. 2. Homogenizer according to claim 1, characterized in that the width of the grinding gap between the stator and rotor is constant.
3. Homogenisator nach Anspruch 2, dadurch gekennzeichnet, daß die konstante Breite des Mahlspalts je nach Bedarf eingestellt werden kann. 3. Homogenizer according to claim 2, characterized in that the constant width of the grinding gap can be adjusted as required.
4. Homogenisator nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Drehzahl des Rotors im Bereich von 2500 Upm bis 5000 Upm liegt. 4. Homogenizer according to one of claims 1 to 3, characterized in that the speed of the rotor is in the range from 2500 rpm to 5000 rpm.
5. Verwendung des Homogenisators nach einem der Ansprüche 1 bis 4 zur Herstellung einer Emulsion aus Dieselkraftstoff und Wasser. 5. Use of the homogenizer according to one of claims 1 to 4 for the production of an emulsion of diesel fuel and water.
6. Verwendung nach Anspruch 5, dadurch gekennzeichnet, daß zur Herstellung der Emulsion ein Tensid mit einem 6. Use according to claim 5, characterized in that a surfactant with a for producing the emulsion
HLB-Wert von ca. 8 zugegeben wird.  HLB value of approx. 8 is added.
7. Verwendung nach Anspruch 6, dadurch gekennzeichnet, daß die Menge des Tensids 0,1 bis 1%, bezogen auf das 7. Use according to claim 6, characterized in that the amount of the surfactant 0.1 to 1%, based on the
Gesamtvolumen der Emulsion, beträgt. Total volume of the emulsion.
8. Verwendung nach Anspruch 5, dadurch gekennzeichnet, daß zur Herstellung der Emulsion der Biokatalysator Bioclean zugegeben wird. 8. Use according to claim 5, characterized in that the biocatalyst Bioclean is added to produce the emulsion.
9. Verwendung nach Anspruch 8, dadurch gekennzeichnet, daß die Menge des Biokatalysators 0,1%, bezogen auf das Volumen des eingesetzten Wassers beträgt. 9. Use according to claim 8, characterized in that the amount of the biocatalyst is 0.1%, based on the volume of the water used.
10. Verwendung nach Anspruch 5, dadurch gekennzeichnet, daß zur Herstellung der Emulsion das Tensid nach Anspruch 6 und der Biokatalysator nach Anspruch 8 gemeinsam 10. Use according to claim 5, characterized in that for the preparation of the emulsion, the surfactant according to claim 6 and the biocatalyst according to claim 8 together
zugegeben werden.  be added.
PCT/EP1991/002499 1991-12-23 1991-12-23 Homogenizer and its use WO1993012872A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP92901051A EP0575328B1 (en) 1991-12-23 1991-12-23 Homogenizer and its use
AU90929/91A AU9092991A (en) 1991-12-23 1991-12-23 Homogenizer and its use
DE59106442T DE59106442D1 (en) 1991-12-23 1991-12-23 HOMOGENIZER AND ITS USE.
AT92901051T ATE127363T1 (en) 1991-12-23 1991-12-23 HOMOGENIZER AND ITS USE.
PCT/EP1991/002499 WO1993012872A1 (en) 1991-12-23 1991-12-23 Homogenizer and its use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1991/002499 WO1993012872A1 (en) 1991-12-23 1991-12-23 Homogenizer and its use

Publications (1)

Publication Number Publication Date
WO1993012872A1 true WO1993012872A1 (en) 1993-07-08

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ID=1226436

Family Applications (1)

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PCT/EP1991/002499 WO1993012872A1 (en) 1991-12-23 1991-12-23 Homogenizer and its use

Country Status (5)

Country Link
EP (1) EP0575328B1 (en)
AT (1) ATE127363T1 (en)
AU (1) AU9092991A (en)
DE (1) DE59106442D1 (en)
WO (1) WO1993012872A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3097973A1 (en) * 2015-05-28 2016-11-30 Three ES S.r.l. Controlled cavitation device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB895043A (en) * 1957-06-05 1962-04-26 Mobay Chemical Corp Mixing apparatus
GB1111386A (en) * 1964-01-04 1968-04-24 G A Harvey & Company London Lt Improvements in or relating to apparatus for contacting or separating materials
DE1457182A1 (en) * 1965-07-26 1968-12-12 Wacker Chemie Gmbh Method of continuous mixing
US4419014A (en) * 1980-09-23 1983-12-06 Rubber And Plastics Research Association Of Great Britain Extruder mixer
DE8912938U1 (en) * 1989-11-02 1990-02-08 Bargen, Peter von, 2208 Glückstadt Emulsifier for emulsifying light heating oil with water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB895043A (en) * 1957-06-05 1962-04-26 Mobay Chemical Corp Mixing apparatus
GB1111386A (en) * 1964-01-04 1968-04-24 G A Harvey & Company London Lt Improvements in or relating to apparatus for contacting or separating materials
DE1457182A1 (en) * 1965-07-26 1968-12-12 Wacker Chemie Gmbh Method of continuous mixing
US4419014A (en) * 1980-09-23 1983-12-06 Rubber And Plastics Research Association Of Great Britain Extruder mixer
DE8912938U1 (en) * 1989-11-02 1990-02-08 Bargen, Peter von, 2208 Glückstadt Emulsifier for emulsifying light heating oil with water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3097973A1 (en) * 2015-05-28 2016-11-30 Three ES S.r.l. Controlled cavitation device

Also Published As

Publication number Publication date
EP0575328B1 (en) 1995-09-06
AU9092991A (en) 1993-07-28
EP0575328A1 (en) 1993-12-29
ATE127363T1 (en) 1995-09-15
DE59106442D1 (en) 1995-10-12

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