WO2003086601A1 - Verfahren und vorrichtung zum homogenisieren von emulsionen - Google Patents
Verfahren und vorrichtung zum homogenisieren von emulsionen Download PDFInfo
- Publication number
- WO2003086601A1 WO2003086601A1 PCT/EP2003/003657 EP0303657W WO03086601A1 WO 2003086601 A1 WO2003086601 A1 WO 2003086601A1 EP 0303657 W EP0303657 W EP 0303657W WO 03086601 A1 WO03086601 A1 WO 03086601A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shear forces
- generated
- flow
- sharp
- milk
- 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.)
- Ceased
Links
Classifications
-
- 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
- B01F25/40—Static mixers
- B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
-
- 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
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/41—Emulsifying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/30—Micromixers
Definitions
- the invention relates to a method for homogenizing emulsions, in particular milk, with which it is possible to comminute the fat droplets by means of a homogenizer equipped with special microstructures at a substantially lower operating pressure than was previously possible.
- Homogenizing is an essential process step for milk processing. In order to obtain an emulsion that is stable for days or weeks, the fat droplets contained in the milk must be small and evenly distributed. In addition, this fine distribution creates a full-bodied taste.
- the amount of energy that is used to crush the fat droplets is three orders of magnitude higher than the amount of energy that is theoretically necessary to increase the surface area of the fat phase. Assuming a uniform energy input over the volume, the actual energy input is still two orders of magnitude above the theoretical minimum. Despite the continuous improvement of the process, the majority of the energy input into the milk only causes warming.
- German patent application 197 00 810 describes a method for homogenizing milk, in which the milk is conveyed through a single-stage or multi-stage nozzle dispersing device. Shear forces that caused by multiple flow deflections in narrow micro structures or by holes with a diameter of less than 1 ⁇ m are not used. Rather, homogenization takes place there with nozzle diameters of more than 100 ⁇ m through the nozzle flow, but not through the crushing of the droplets.
- microtechnology has already been used successfully in many areas of industry. Due to the small structural dimensions, high heat transfer rates, fast mixing processes and very precise flow control are achieved. In the area of the food industry, the special advantages of microtechnology for process improvements, in particular for improving fluid processes, have so far hardly been used.
- the flow obstacles which are designed as microstructures and offset against one another, preferably have the shape of rhombuses, triangles, sickles or other sharp-edged structures.
- Corrosion-resistant steels but also ceramic materials can be used as materials.
- Production can be carried out using standard microtechnology manufacturing processes such as B. LIGA technology, deep etching, spark erosion, laser ablation or mechanical micromachining.
- the structures can be connected in a form-fitting, material-locking or force-fitting manner, for example by diffusion soldering, diffusion welding, electron beam welding, gluing or pressing.
- Another method to produce structures with fine flow obstacles inexpensively is to thin metal wires with another metal layer, for. B. electroplated a silver layer, then pressed in parallel and fixed on a carrier plate, for example by welding. The outer metal layer is then removed again by an etching solution, so that the desired structure is created.
- the cleaning of the components is of particular importance, especially in food technology.
- Chemical cleaning agents can be used for the homogenizer according to the invention.
- Another option is a construction that provides mechanical cleaning.
- the microstructured plate is inserted into the flow space through a plate with openings in the form of the flow obstacles, so that cleaning can be carried out by lowering the microstructures.
- Shear forces are offset against each other.
- 2 shows the geometric dimensions (a), (b), ( ⁇ ) which are important for the generation of optimal shear forces and which can be varied in accordance with the properties of the emulsion to be homogenized and the fat droplet size to be achieved. Further variation possibilities result from the height of the micro structures and from the number of rows of the micro structures arranged one behind the other.
- FIG. 3 shows the structure of a homogenizer according to the invention containing microstructures.
- One or more microstructured plates are stacked one above the other in the homogenizing unit, in which the rhombic cutouts on the edge show sharp-edged elevations which are responsible for the formation of considerable shear forces.
- the emulsion flows towards the stack of plates and how it leaves it after homogenization.
- the raw emulsion e.g. the milk is pressed through the homogenizing unit by means of a pump and can then be processed further.
- Fig. 4 shows a sharp-edged micro structure, which consists of a layer of
- Metal wires have been produced, which are coated with a second metal and after parallel pressing are fixed on one or between several carrier plates. The second metal was then removed. For this method, metal wires with an advantageous
- the shear forces required to produce evenly small droplets of fat in an emulsion can also be generated by differently designed microstructures.
- a perforated plate has proven particularly suitable for this proven, the holes have a diameter of less than 1 micron.
- This hole diameter is particularly suitable for the homogenization of milk, in which the fat droplets in front of the emulsion have a diameter of 3 to 25 ⁇ m and should only have a uniform droplet size of less than 1 ⁇ m after passage through the homogenizer.
- a comparable effect is also achieved through microchannels, the narrowest cross-section of which is smaller than 1 ⁇ m.
- femtosecond lasers are particularly interesting for the production of the perforated plate which can be used according to the invention for homogenizing emulsions, since when processing materials with high thermal conductivity and comparatively low melting temperature (for example with metals), the melt build-up which generally occurs when using conventional laser beam sources can significantly reduce the achievable precision, do not occur. Even transparent materials such as organic materials can be processed with very little damage using these femtosecond lasers.
- Such a perforated plate is preferably made of metal or glass.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Colloid Chemistry (AREA)
- Dairy Products (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003233959A AU2003233959A1 (en) | 2002-04-17 | 2003-04-09 | Method and device for homogenizing emulsions |
| DE50307961T DE50307961D1 (de) | 2002-04-17 | 2003-04-09 | Verfahren und vorrichtung zum homogenisieren von emulsionen |
| EP03727282A EP1497020B1 (de) | 2002-04-17 | 2003-04-09 | Verfahren und vorrichtung zum homogenisieren von emulsionen |
| US10/513,845 US20050233040A1 (en) | 2002-04-17 | 2003-04-09 | Method and device for homogenizing emulsions |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10216947A DE10216947B4 (de) | 2002-04-17 | 2002-04-17 | Verfahren zum Homogenisieren von Emulsionen |
| DE10216947.0 | 2002-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003086601A1 true WO2003086601A1 (de) | 2003-10-23 |
Family
ID=28798475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/003657 Ceased WO2003086601A1 (de) | 2002-04-17 | 2003-04-09 | Verfahren und vorrichtung zum homogenisieren von emulsionen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050233040A1 (de) |
| EP (1) | EP1497020B1 (de) |
| AT (1) | ATE369907T1 (de) |
| AU (1) | AU2003233959A1 (de) |
| DE (2) | DE10216947B4 (de) |
| WO (1) | WO2003086601A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2798988A1 (de) * | 2013-04-29 | 2014-11-05 | Melitta SystemService GmbH & Co., Kommanditgesellschaft | Vorrichtung zum Erzeugen eines Milchschaumes |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7118920B2 (en) * | 2002-10-22 | 2006-10-10 | Battelle Memorial Institute | Multiphasic microchannel reactions |
| US7485671B2 (en) * | 2003-05-16 | 2009-02-03 | Velocys, Inc. | Process for forming an emulsion using microchannel process technology |
| EP1633463B1 (de) * | 2003-05-16 | 2007-10-24 | Velocys Inc. | Verfahren zur erzeugung einer emulsion durch verwendung einer mikrokanalverfahrentechnologie |
| EP1804964A1 (de) | 2004-10-01 | 2007-07-11 | Velocys Inc. | Mehrphasiges mischverfahren mit mikrokanalverarbeitungstechnologie |
| JP5704786B2 (ja) * | 2004-11-16 | 2015-04-22 | ヴェロシス,インク. | マイクロチャネル技術を用いる多相反応プロセス |
| JP2016514047A (ja) * | 2013-03-06 | 2016-05-19 | プレジデント アンド フェローズ オブ ハーバード カレッジ | 比較的単分散の液滴を形成するためのデバイスおよび方法 |
| DE202016105311U1 (de) | 2016-09-23 | 2018-01-09 | Reinz-Dichtungs-Gmbh | Strömungsplatte für einen Befeuchter |
| DE202016105307U1 (de) | 2016-09-23 | 2018-01-09 | Reinz-Dichtungs-Gmbh | Strömungsplatte für einen Befeuchter |
| DE202016105309U1 (de) | 2016-09-23 | 2018-01-09 | Reinz-Dichtungs-Gmbh | Befeuchter |
| US20190321791A1 (en) * | 2018-04-19 | 2019-10-24 | President And Fellows Of Harvard College | Apparatus and method for forming emulsions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2132854A (en) * | 1937-07-16 | 1938-10-11 | John Duval Dodge | Emulsifier |
| DE19700810A1 (de) * | 1997-01-13 | 1998-07-16 | Bayer Ag | Verfahren und Vorrichtung zum Homogenisieren von Milch |
| US5811227A (en) * | 1995-10-09 | 1998-09-22 | Fuji Photo Film Co., Ltd. | Method for dispersing droplet type emulsified material within liquid feeding system and coating method using the dispersing method |
| EP1179585A2 (de) * | 1997-12-24 | 2002-02-13 | Cepheid | Integrierte Kassette zur Handhabung von Flüssigkeiten |
| US6368871B1 (en) * | 1997-08-13 | 2002-04-09 | Cepheid | Non-planar microstructures for manipulation of fluid samples |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US368871A (en) * | 1887-08-23 | Double-shovel plow | ||
| DE3709278A1 (de) * | 1987-03-20 | 1988-09-29 | Kernforschungsz Karlsruhe | Verfahren zur herstellung von feinstrukturkoerpern |
| DE19541266A1 (de) * | 1995-11-06 | 1997-05-07 | Bayer Ag | Verfahren und Vorrichtung zur Durchführung chemischer Reaktionen mittels eines Mikrostruktur-Lamellenmischers |
| US6208458B1 (en) * | 1997-03-21 | 2001-03-27 | Imra America, Inc. | Quasi-phase-matched parametric chirped pulse amplification systems |
| DE19927556C2 (de) * | 1999-06-16 | 2003-05-08 | Inst Mikrotechnik Mainz Gmbh | Statischer Mikromischer und Verfahren zum statischen Mischen zweier oder mehrerer Edukte |
| DE10059430A1 (de) * | 2000-11-30 | 2002-06-06 | Cognis Deutschland Gmbh | Feinteilige Emulsionen |
-
2002
- 2002-04-17 DE DE10216947A patent/DE10216947B4/de not_active Withdrawn - After Issue
-
2003
- 2003-04-09 EP EP03727282A patent/EP1497020B1/de not_active Expired - Lifetime
- 2003-04-09 US US10/513,845 patent/US20050233040A1/en not_active Abandoned
- 2003-04-09 AT AT03727282T patent/ATE369907T1/de active
- 2003-04-09 WO PCT/EP2003/003657 patent/WO2003086601A1/de not_active Ceased
- 2003-04-09 AU AU2003233959A patent/AU2003233959A1/en not_active Abandoned
- 2003-04-09 DE DE50307961T patent/DE50307961D1/de not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2132854A (en) * | 1937-07-16 | 1938-10-11 | John Duval Dodge | Emulsifier |
| US5811227A (en) * | 1995-10-09 | 1998-09-22 | Fuji Photo Film Co., Ltd. | Method for dispersing droplet type emulsified material within liquid feeding system and coating method using the dispersing method |
| DE19700810A1 (de) * | 1997-01-13 | 1998-07-16 | Bayer Ag | Verfahren und Vorrichtung zum Homogenisieren von Milch |
| US6368871B1 (en) * | 1997-08-13 | 2002-04-09 | Cepheid | Non-planar microstructures for manipulation of fluid samples |
| EP1179585A2 (de) * | 1997-12-24 | 2002-02-13 | Cepheid | Integrierte Kassette zur Handhabung von Flüssigkeiten |
Non-Patent Citations (2)
| Title |
|---|
| BERTSCH A ET AL: "3D micromixers - downscaling large scale industrial static mixers", PROCEEDINGS OF THE IEEE 14TH. ANNUAL INTERNATIONAL CONFERENCE ON MICROELECTRO MECHANICAL SYSTEMS. MEMS 2001. INTERLAKEN, SWITZERLAND, JAN. 21 - 25, 2001, IEEE INTERNATIONAL MICRO ELECTRO MECHANICAL SYSTEMS CONFERENCE, NEW YORK, NY: IEEE, US, vol. CONF. 14, 21 January 2001 (2001-01-21), pages 507 - 510, XP010534659, ISBN: 0-7803-5998-4 * |
| EHRFELD W ET AL: "Microreactors, 3.6 INJECTION OF MANY SMALL SUBSTREAMS OF ONE COMPONENT INTO A MAIN STREAM OF ANOTHER COMPONENT", MICROREACTORS: NEW TECHNOLOGY FOR MODERN CHEMISTRY, WEINHEIM: WILEY - VCH, DE, 2000, pages 53 - 55, XP002244595, ISBN: 3-527-29590-9 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2798988A1 (de) * | 2013-04-29 | 2014-11-05 | Melitta SystemService GmbH & Co., Kommanditgesellschaft | Vorrichtung zum Erzeugen eines Milchschaumes |
| US9807975B2 (en) | 2013-04-29 | 2017-11-07 | Melitta Professional Coffee Solutions GmbH & Co. KG | Device for producing milk foam |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50307961D1 (de) | 2007-09-27 |
| EP1497020A1 (de) | 2005-01-19 |
| AU2003233959A1 (en) | 2003-10-27 |
| DE10216947B4 (de) | 2007-10-04 |
| EP1497020B1 (de) | 2007-08-15 |
| US20050233040A1 (en) | 2005-10-20 |
| ATE369907T1 (de) | 2007-09-15 |
| DE10216947A1 (de) | 2003-11-06 |
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