EP1222017B1 - Verfahren und vorrichtung zum mischen - Google Patents

Verfahren und vorrichtung zum mischen Download PDF

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Publication number
EP1222017B1
EP1222017B1 EP00973323A EP00973323A EP1222017B1 EP 1222017 B1 EP1222017 B1 EP 1222017B1 EP 00973323 A EP00973323 A EP 00973323A EP 00973323 A EP00973323 A EP 00973323A EP 1222017 B1 EP1222017 B1 EP 1222017B1
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EP
European Patent Office
Prior art keywords
mixing
vessel
aforementioned
accordance
arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00973323A
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English (en)
French (fr)
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EP1222017A1 (de
Inventor
Michele Morichetto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Snoland AB
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Snoland AB
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Filing date
Publication date
Application filed by Snoland AB filed Critical Snoland AB
Publication of EP1222017A1 publication Critical patent/EP1222017A1/de
Application granted granted Critical
Publication of EP1222017B1 publication Critical patent/EP1222017B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components

Definitions

  • the present invention relates to a method for mixing a substance with water or some other similar liquid.
  • Water or some other liquid is usually mixed with the substance, which is in solid or liquid form, in special mixing vessels for the subsequent dispensing of the mixture to desired specific consumption points.
  • the substance which is in solid or liquid form
  • special mixing vessels for the subsequent dispensing of the mixture to desired specific consumption points.
  • Time will be lost in this way if it is necessary to wait until the mixing process has first been completed before any part of it can be dispensed. This may cause a process to be delayed if it is first necessary to wait until the mixing process is complete.
  • An alternative is to provide a reservoir containing the finished mixture of the substance and liquid, although this is an extra item which will make the final product more expensive and will require more personnel, space and equipment for the purpose. If it is then wished to mix different substances, for example with water, this will call for an organized storage system for the finished mixtures and will impose an even greater space requirement.
  • the principal object of the present invention is thus, in the first instance, to solve the aforementioned problems, among others, by simple and effective means.
  • the aforementioned object is achieved by means of a method in accordance with the present invention, which is characterized essentially in that the mixing process is so arranged as to take place inside a mixing vessel which is arranged separately from a receiving vessel intended for subsequent receiving of the mixture, in that water is so arranged as to be introduced tangentially into the mixing vessel via a mixing unit to form a vortex internally in the aforementioned mixing unit, in conjunction with which the flow through a passage between the mixing vessel and the receiving vessel is prevented, in that the mixture is so arranged as to be introduced into the receiving vessel , after the mixing process in the mixing vessel is complete, before the mixture is caused to be transported to the intended consumption point.
  • the invention also relates to an arrangement for the implementation of a method for mixing in accordance with the invention.
  • Previously disclosed mixing arrangements are not suitable for use because, in order to ensure that complete mixing takes place, they require advance preparation of the mixing process and the provision of a storage facility for this purpose.
  • a further object of the invention is thus also to make available an arrangement, which, among other things, solves the aforementioned problems by effective and simple means.
  • a mixing vessel is positioned separately from a receiving vessel for the finished mixture, in that a mixing unit is arranged adjacent to the aforementioned mixing vessel, in that openings are provided which lead to the aforementioned mixing unit, in that the mixing unit comprises a supply channel for the supply of water, and in that the aforementioned supply channel discharges into a centrally located chamber and extends tangentially from the supply opening for water through an enclosing wall and an annular flange formed in the aforementioned mixing unit for the purpose of creating a vortex which is so arranged as to prevent flow from the mixing vessel to the receiving vessel, in that a passage leads between the aforementioned mixing vessel and the receiving vessel, and in that a pump or some other means of transport is present, which is so arranged as to cause the mixture to be transported from the receiving vessel as far as the intended point of consumption.
  • the method and the arrangement in accordance with the present invention comprise a number of communicating vessels consisting of a mixing part and a receiving vessel. These are in turn connected to one another via a connection or lead-through. These vessels are positioned inside one another for practical reasons, although the design could equally consist of two vessels positioned alongside one another or even with a shared partition wall.
  • the connection between the vessels is closed when the mixing process is taking place, and the connection is open when the mixing process is not taking place.
  • the idea of invention is to make this possible entirely without valves or other mechanical closing arrangement.
  • the invention is intended for application to mixing vessels in which the mixing process takes place and to receiving vessels to which the finished mixture is led after mixing, which, as stated above, are situated optionally at a distance from one another as required or are closely connected to one another.
  • the example described below is only one example of closely packed mixing vessels and receiving vessels, although all solutions in respect of positioning are thus possible in accordance with the invention.
  • a method for achieving effective mixing of a number of substances 1, 1 1 , 1 2 , 1 3 , ... with water 2 or with some other similar liquid proceeds in such a way that the mixing process is so arranged as to take place in a separate mixing vessel 3, 3 1 , 3 2 , 3 3 ..., which is arranged separately from a mixture receiving vessel 5, 5 1 , 5 2 , 5 3 ... intended to receive the mixture 4, 4 1 , 4 2 , 4 3 .
  • the aforementioned mixing vessel 3, 3 1 , 3 2 , 3 3 is arranged in such a way that the mixture 4 ... is so arranged, after the mixing process is finished, as to be supplied to separate holding vessel 5, 5 1 , 5 2 , 5 3 .
  • Means 6 are also provided in the form of, in the first instance, pumps or other means of transport, which are caused to transport the mixture 4 to the intended point of consumption, such as a washing station for vehicles, a textile washing plant or some other cleaning or processing plant.
  • This mixing process is so arranged as to be performed by accurately pumping in a specific quantity of, for example, a concentrated solution, after which the actual mixing vessel 3, 3 1 , 3 2 , 3 3 3 is filled with water 2.
  • the entire process takes place inside a closed unit with an inlet for water 2 and an outlet for the mixture 4, for example industrial solutions for degreasing, alkaline and neutral shampoo, foam and wax and micro-emulsion.
  • the invention is not restricted to the example described above, but the receiving vessel may contain a finished mixed liquid instead of an industrial solution or a washing solution, and emptying can also take place with the help of gravity.
  • the mixing process is so arranged as to be capable of taking place regardless of the number of occasions on which the mixture 4 ... is emptied from the respective receiving vessel 5, 5 1 , 5 2 , 5 3 .
  • the mixing process is so arranged as to take place when the level inside the receiving vessel is low.
  • the emptying process is interrupted in accordance with the illustrated example while the mixing process takes place, i.e. with this design mixing will take place automatically between two emptying occasions, although as already stated this is not a condition.
  • the system thus requires the possibility of mixing more rapidly than the average rate of consumption from the receiving vessel. Because mixing takes place in batches, any remaining liquid below the low level indicator must accordingly be greater than the quantity which can be consumed while the mixing process takes place.
  • mixing may only take place when the washing machine in question is not pumping any mixed industrial solution, and the mixing process must accordingly be completed between two successive emptying occasions.
  • the receiving vessels 5 ... Upon reaching the level which triggers mixing in the respective mixing vessel 3..., the receiving vessels 5 ... must also contain at least one ready-mixed washing dose, since mixing cannot commence until after the corresponding pumping time has elapsed or the quantity of finished mixture has been pumped out.
  • the mixing process is thus so arranged as to start, for example, when a meter 7, 8 indicates that a certain quantity of the mixture 4 ...
  • An arrangement 11 for implementing a method in accordance with the present invention for the purpose of achieving mixing of a substance 1, 1 1 , 1 2 , 1 3 , ... with water 2 or with some other similar liquid comprises one or more mixing vessel 3, 3 1 , 3 2 , 3 3 ... which is/are situated at a distance from receiving vessels 5, 5 1 , 5 2 , 5 3 , for example the mixing vessel 3, 3 1 , 3 2 , 3 3 is situated at a level above a receiving vessel 5, 5 1 , 5 2 , 5 3 ... and a mixing unit 12 is arranged in conjunction with the aforementioned mixing vessel 3, 3 1 , 3 2 , 3 3 ....
  • openings 13-16 which lead to the aforementioned mixing unit 12, either leading into its inside or through it.
  • a passage 17 is provided which runs between the aforementioned mixing vessel 3, 3 1 , 3 2 , 3 3 ... and, for example, a subjacent receiving vessel 5, 5 1 , 5 2 , 5 3 ..., preferably in the form of a centrally located hole with a connected pipe in the bottom 18 of the aforementioned mixing vessel 3, 3 1 , 3 2 , 3 3 ... and internally in the mixing unit 12.
  • a pump 6 or some other suitable means of transport which is so arranged as to cause the mixture to be transported from the receiving vessel 5, 5 1 , 5 2 , 5 3 ... concerned to the intended point of consumption.
  • the aforementioned mixing unit 12 is arranged on the bottom 18 of the aforementioned mixing vessel 3, 3 1 , 3 2 , 3 3 ... with a drain pipe 19 for the mixture and leading to an aforementioned subjacent receiving vessel 5, 5 1 , 5 2 , 5 3 ..., for example through the mixing unit 12.
  • the mixing unit 12 is preferably designed as a separate or fixed annular unit with a centrally located chamber 20, which is closed in an upward direction 21 and is attached to the bottom 18 of the mixing vessel 3, and the drain pipe 19 discharges from the aforementioned chamber 20 through the bottom 18 and down to the receiving vessel 5, 5 1 , 5 2 , 5 3 ..., which in this case functions as a mixture receiving vessel.
  • the mixing unit 12 comprises a supply channel 23 which is intended for the supply of water 2, and the aforementioned supply channel 23 discharges into the centrally located chamber 20 extending tangentially from the supply opening 14 for water 2 through an enclosing wall 24 in a formed annular flange 28 in the aforementioned unit 12.
  • the aforementioned flow channels 33 are in the form of grooves open in a direction downwards 27 from the mixing unit 12 which extend tangentially and at an angle and exhibit a widening external mouth part 34.
  • the aforementioned supply channel 26 for the substance extends preferably tangentially from the supply opening 13 for the substance 1 and out through the mixing unit 12 and its aforementioned annular wall 24.
  • the invention is suitable for mixing both liquids, semi-liquid materials and solid materials. At least one of the materials and the finished mixture must be in liquid form, however.
  • the mixing unit 12 In order to get the mixing unit 12 in position, it is detachably attachable by means of a number of screws 29 or other fixing devices to the bottom 18 of the mixing vessel 3, 3 1 , 3 2 , 3 3 ... in which mixing is intended to take place. It is also possible for integration of the mixing unit and the mixing vessel to take place, for example by moulding the mixing unit as a part of the vessel.
  • the mixing unit 12 is preferably divided and consists of several components capable of being assembled together.
  • An upper part 12A in which the liquid supply channel 23 extends internally, and the aforementioned channel 26 for the supply of the substance ... is arranged in the form of a groove open in a direction downwards; an annular central part 12B exhibiting the aforementioned transcurrent flow channels 33 in the form of downwardly open radial channels; and a bottom part 12C so arranged as to function as a mounting plate on the under side 18B of the bottom 18 of the mixing vessel, while the two upper channels 12A, 12B are accommodated on the upper side 18A of the aforementioned bottom 18.
  • the arrangement 11 is compact in the first instance thanks to the fact that the mixing vessel 3, 3 1 , 3 2 , 3 3 ... and the receiving vessel 5, 5 1 , 5 2 , 5 3 ... for the finished mixture 4 are accommodated close together to form a compact unit.
  • the aforementioned vessels and containers are conical, it is possible to insert each mixing vessel 3, 3 1 , 3 2 , 3 3 ... into an associated subjacent receiving vessel 5, 5 1 , 5 2 , 5 3 ... and, for example, to suspend the vessel 3, 3 1 , 3 2 , 3 3 ... by means of hooks 30 or other carrying devices as illustrated in Fig. 20.
  • a lid 31 with transcurrent openings 32 can be used as a means of closing each vessel 3, 3 1 , 3 2 , 3 3 .
  • the function of the arrangement 11 is such that, when water 2 is sprayed in through the inlet 14 provided for this purpose in the respective mixing vessel 3..., the water 2 flows in tangentially through the supply channel 23 and into the chamber 20 inside the mixing unit 12 before being led out through the aforementioned flow channels 33 along the upper side 18A of the bottom 18 of each mixing vessel 3... and into its receiving area 34 for as long as water 2, for example from the ordinary water mains, continues to be sprayed in through the mixing unit 12 to the desired level.
  • water 2 is sprayed in tangentially, this creates a vortex which obstructs the flow through the passage 17 between the mixing vessel 3 and the receiving vessel 5 ....
  • the liquid 2 with which it is wished to mix the liquid 2 are then supplied, preferably in the form of a concentrate, through the inlet 13.
  • the aforementioned substance 1 ... is led directly out through the channel 26 to the mixing vessel 3, 3 1 , 3 2 , 3 3 ... where it is mixed with the supplied liquid 2.
  • the supplied mixture 4, 4 1 , 4 2 , 4 3 ... will flow out through all the flow channels 33 and into the inner chamber 20 of the mixing unit 12, and only after this thorough remixing will it be allowed to flow down, or be caused to be led in some other way, through the drain pipe 17 or some other line and, for example, a receiving vessel 5, 5 1 , 5 2 , 5 3 ... located in a subjacent or some other position, to which the pipe 17 extends, after positioning a vessel 3 ... on a container 5 ....
  • a centrally located wing 35 can be positioned internally within the chamber 20, as shown in Fig. 3, which breaks up the flow path of the mixture is it passes through so that a new path is created for it.
  • the supply of liquid 2 and substance 1 and the removal of the finished mixture 4, 4 1 , 4 2 , 4 3 ... can be effected via, for example, metal pipes 36, 37, 19, which extend through the entire arrangement and are held in place by means of a bridging, curved securing plate 39 with a subjacent thickened part 40, and the whole is screwed together to the upper side 18A of the bottom 18 of a mixing vessel 3, 31, 32, 33 by means of fixing screws 41 passing into the mixing unit 12 on its upper side.
  • the invention is not restricted to the illustrative example described above and shown in the drawings, but may be varied within the scope of the Patent Claims.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Accessories For Mixers (AREA)

Claims (14)

  1. Verfahren zum Mischen einer Substanz (1, 11, 12, 13, ...) mit Wasser (2) oder irgendeiner anderen ähnlichen Flüssigkeit, wobei das Mischverfahren derart eingerichtet ist, dass es im Inneren eines Mischgefäßes (3, 31, 32, 33 ...) stattfindet, das getrennt von einem Aufnahmegefäß (5, 51, 52, 53 ...) angeordnet ist, das dafür vorgesehen ist, anschließend das Gemisch (4, 41, 42, 43 ...) aufzunehmen,
    dadurch gekennzeichnet, dass das Wasser (2) derart angeordnet wird, dass es tangential in das Mischgefäß (3, 31, 32, 33 ...) über eine Mischeinheit (12) eingeleitet wird, um im Inneren der vorstehend erwähnten Mischeinheit (12) einen Wirbel zu bilden, in Verbindung mit dem der Durchfluss durch einen Durchgang (17) zwischen dem Mischgefäß (3, 31, 32, 33 ...) und dem Aufnahmegefäß (5, 51, 52, 53 ...) verhindert wird, dass das Gemisch (4, 41, 42, 43 ...) derart angeordnet wird, dass es in das Aufnahmegefäß (5, 51, 52, 53 ...) eingeleitet wird, nachdem das Mischverfahren in dem Mischgefäß (3, 31, 32, 33 ...) abgeschlossen worden ist, bevor bewirkt wird, dass das Gemisch (4 ...) zu dem vorgesehenen Verbrauchspunkt transportiert wird.
  2. Verfahren nach Patentanspruch 1,
    dadurch gekennzeichnet, dass das Mischverfahren derart eingerichtet ist, dass es ungeachtet der Anzahl von Vorkommnissen, bei denen das Gemisch (4 ...) aus dem Aufnahmegemäß (5 ...) entleert wird, stattfinden kann.
  3. Verfahren nach Patentanspruch 2,
    dadurch gekennzeichnet, dass das Mischverfahren derart eingerichtet ist, dass es beginnt, wenn eine Messeinrichtung anzeigt, dass eine bestimmte Menge des Gemisches (4 ...) aus dem Aufnahmegefäß (5, 51, 52, 53 ...) transportiert worden ist, beispielsweise indem eine Pumpe gestartet und ein Ventil (9, 10) für die Substanz (1) und für Wasser (2) geöffnet wird, um eine vorgesehene Menge dem vorstehend erwähnten Mischgefäß (3, 31, 32, 33 ...) zuzuführen.
  4. Anordnung zum Erzielen einer Mischung einer Substanz (1, 11, 12, 13 ...) mit Wasser (2) oder mit irgendeiner anderen ähnlichen Flüssigkeit gemäß einem der obigen Patentansprüche mit einem Mischgefäß (3, 31, 32, 33 ...), das getrennt von einem Aufnahmegefäß (5, 51, 52, 53 ...) für das fertig gestellte Gemisch (4 ...) gelegen ist, und einer Mischeinheit (12), die in Verbindung mit dem vorstehend erwähnten Mischgefäß (3, 31, 32, 33 ...) angeordnet ist,
    dadurch gekennzeichnet, dass Öffnungen (13-16) vorgesehen sind, die zu der vorstehend erwähnten Mischeinheit (12) führen, dass die Mischeinheit (12) einen Zufuhrkanal (23) für die Zufuhr von Wasser (2) umfasst, und dass der vorstehend erwähnte Zufuhrkanal (23) in eine zentral angeordnete Kammer (20) austrägt und sich tangential von der Zufuhröffnung (14) für Wasser (20) durch eine umgebende Wand (24) und einen ringförmigen Flansch (28), der in der vorstehend erwähnten Mischeinheit (12) ausgebildet ist, zu dem Zweck erstreckt, einen Wirbel zu erzeugen, der derart eingerichtet ist, dass er eine Strömung aus dem Mischgefäß (3 ...) zu dem Aufnahmegefäß (5) verhindert, dass ein Durchgang (17) zwischen das vorstehend erwähnte Mischgefäß (3, 31, 32, 33 ...) und das Aufnahmegefäß (5, 51, 52, 53 ...) führt, und dass eine Pumpe (6) oder irgendein anderes Transportmittel vorgesehen ist, das derart angeordnet ist, dass es bewirkt, dass das Gemisch aus dem Aufnahmegefäß (5, 51, 52, 53 ...) zu dem vorgesehenen Verbrauchspunkt transportiert wird.
  5. Anordnung nach Patentanspruch 4,
    dadurch gekennzeichnet, dass die Mischeinheit (12) am Boden (18) des vorstehend erwähnten Mischgefäßes (3, 31, 32, 33 ...) angeordnet ist, wobei ein Ablaufrohr (17) von dieser zu einem Aufnahmegefäß (5, 51, 52, 53...) führt.
  6. Anordnung nach Patentanspruch 5,
    dadurch gekennzeichnet, dass die Mischeinheit (12) als eine ringförmige Einheit mit einer zentral angeordneten Kammer (20) konstruiert ist, dass die vorstehend erwähnte Kammer (20) in einer Richtung nach oben (21) verschlossen ist und am Boden (18) angebracht ist, und dass das Ablaufrohr (17) aus der vorstehend erwähnten Kammer (20) durch den Boden (18) des Mischgefäßes (3, 31, 32, 33 ...) und zu dem Aufnahmegefäß (5, 51, 52, 53 ...) austrägt.
  7. Anordnung nach einem der Patentansprüche 4-6,
    dadurch gekennzeichnet, dass ein Kanal (26) für die Substanz (1, 11, 12, 13 ...), die zum Mischen vorgesehen ist und vorzugsweise in der flüssigen Phase vorliegt, durch die Mischeinheit (12) zu ihrer Außenseite für die Zufuhr der Substanz zu dem Mischgefäß (3, 31, 32, 33 ...) führt.
  8. Anordnung nach Patentanspruch 7,
    dadurch gekennzeichnet, dass der vorstehend erwähnte Zufuhrkanal (26) für Substanzen sich tangential durch die Mischeinheit (12) erstreckt.
  9. Anordnung nach einem der Patentansprüche 7-8,
    dadurch gekennzeichnet, dass sich seitlich von der vorstehend erwähnten, zentral angeordneten Kammer (20) in der Mischeinheit (12) eine Anzahl von Strömungskanälen (33) zu dem Zweck erstreckt, Fluid zwischen der zentral angeordneten Kammer (20) und der Außenseite (25) der Mischeinheit (12) zu leiten.
  10. Anordnung nach Patentanspruch 9,
    dadurch gekennzeichnet, dass die vorstehend erwähnten Strömungskanäle (33) in der Form von Nuten vorliegen, die in einer Richtung von der Mischeinheit (12) abwärts (27) vorliegen.
  11. Anordnung nach Patentanspruch 10,
    dadurch gekennzeichnet, dass sich die vorstehend erwähnten Strömungskanäle (33) tangential erstrecken.
  12. Anordnung nach Patentanspruch 11,
    dadurch gekennzeichnet, dass die vorstehend erwähnten Strömungskanäle (33) sich unter einem Winkel erstrecken und einen sich aufweitenden, äußeren Mündungsteil (34) aufweisen.
  13. Anordnung nach einem der Patentansprüche 6-12,
    dadurch gekennzeichnet, dass sich ein ringförmiger Flansch (28) längs der zentral angeordneten Kammer (20) an ihrem unteren Teil erstreckt.
  14. Anordnung nach einem der Patentansprüche 4-13,
    dadurch gekennzeichnet, dass die Mischeinheit (12) mittels Befestigungseinrichtungen (29) am Boden (18) des Mischgefäßes (3, 31, 32, 33 ...) angebracht sein kann.
EP00973323A 1999-10-22 2000-10-20 Verfahren und vorrichtung zum mischen Expired - Lifetime EP1222017B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9903827A SE514824C2 (sv) 1999-10-22 1999-10-22 Förfarande samt anordning för blandning
SE9903827 1999-10-22
PCT/SE2000/002037 WO2001028669A1 (en) 1999-10-22 2000-10-20 Method and means for mixing

Publications (2)

Publication Number Publication Date
EP1222017A1 EP1222017A1 (de) 2002-07-17
EP1222017B1 true EP1222017B1 (de) 2003-07-02

Family

ID=20417460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00973323A Expired - Lifetime EP1222017B1 (de) 1999-10-22 2000-10-20 Verfahren und vorrichtung zum mischen

Country Status (8)

Country Link
EP (1) EP1222017B1 (de)
AT (1) ATE244058T1 (de)
AU (1) AU1184601A (de)
DE (1) DE60003708T2 (de)
DK (1) DK1222017T3 (de)
NO (1) NO20021843L (de)
SE (1) SE514824C2 (de)
WO (1) WO2001028669A1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398827A (en) * 1980-11-10 1983-08-16 Dietrich David E Swirl mixing device
DE3779242D1 (de) * 1986-10-08 1992-06-25 Zugol Ag Verfahren und geraet zur erzeugung einer wasser-in-oel-emulsion.

Also Published As

Publication number Publication date
EP1222017A1 (de) 2002-07-17
DE60003708T2 (de) 2004-06-03
SE9903827L (sv) 2001-04-23
NO20021843D0 (no) 2002-04-19
NO20021843L (no) 2002-04-19
DE60003708D1 (de) 2003-08-07
AU1184601A (en) 2001-04-30
WO2001028669A1 (en) 2001-04-26
DK1222017T3 (da) 2003-10-27
ATE244058T1 (de) 2003-07-15
SE9903827D0 (sv) 1999-10-22
SE514824C2 (sv) 2001-04-30

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