EP3924080A1 - Dispositif de confinement pour évaporateur rotatif - Google Patents
Dispositif de confinement pour évaporateur rotatifInfo
- Publication number
- EP3924080A1 EP3924080A1 EP20702321.9A EP20702321A EP3924080A1 EP 3924080 A1 EP3924080 A1 EP 3924080A1 EP 20702321 A EP20702321 A EP 20702321A EP 3924080 A1 EP3924080 A1 EP 3924080A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary evaporator
- evaporated
- mixture
- connection
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/08—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in rotating vessels; Atomisation on rotating discs
- B01D3/085—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in rotating vessels; Atomisation on rotating discs using a rotary evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0045—Vacuum condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0051—Regulation processes; Control systems, e.g. valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
Definitions
- TITLE Containment device for rotary evaporator
- the present invention relates generally to the containment of substances and the evaporation of substances which need to be contained.
- the invention relates to a containment device for a rotary evaporator as well as a rotary evaporator comprising such a containment device.
- Containment is understood to mean keeping a substance enclosed in a space, for example in a container or in a clean room, in order to prevent the substance from coming into contact with outside air.
- the mixture to be evaporated is placed in a container, usually a balloon, which is connected to a drive shaft coupled to a motor to ensure its rotation.
- the rotation shaft is itself connected to a refrigerant provided with an inlet and an outlet for refrigerant liquid and surmounted by a valve allowing the rotary evaporator to be placed under vacuum.
- the solvent which evaporates goes to the condenser where it condenses before being collected in a collecting container.
- the flask is usually immersed in a water bath to be heated.
- the flask is removed from the rotary evaporator.
- confinement of the balloon is necessary under certain conditions, for example, for safety reasons, by obligation to handle the product of interest in a controlled atmosphere, or to avoid loss of product linked to handling errors due to its economic value.
- Containment of an evaporation operation on a rotary evaporator is not easy to achieve as soon as the volume of the flask exceeds a few liters. Indeed, the size of a rotary evaporator is quickly incompatible with its confinement in a fume cupboard or in an isolator.
- the object of the invention is therefore to remedy these drawbacks and to propose a device making it possible to carry out the evaporation of a mixture using a rotary evaporator to recover a product of interest, while guaranteeing the confinement of the mixture. product of interest, in particular when the receptacle for receiving the mixture to be evaporated is removed from the rotary evaporator after evaporation.
- a removable containment device for a rotary evaporator, comprising: a first end for tight connection to a rotation shaft of the rotary evaporator; a second sealed connection end to a receptacle for receiving a mixture to be evaporated; and a body in fluid connection with the first and second sealed connection ends comprising a valve system for the selective passage between the first and second ends of the constituent evaporating from the mixture to be evaporated.
- the removable confinement device comprises a clamp for the second connection end to the receptacle for receiving the mixture to be evaporated.
- the removable containment device can include a manual control means for the opening and closing of the valve system for the selective passage between the first and second ends of component evaporating from the mixture to be evaporated.
- the first and second connection ends and the body are made of a metallic material.
- the containment device comprises a valve system of the plug valve type.
- the containment device comprises a valve system of the butterfly valve type.
- the removable confinement device can comprise a removable connector comprising a first portion for connection to the second sealed connection end to the receiving container and a second portion of diameter suitable for connection of the containment device to the rotation shaft.
- the body is in the form of an assembly of at least two independent components which can be connected in a sealed manner, each of the two components comprising one of the first and second connection ends and a system. valve for the selective passage of component evaporating from the mixture to be evaporated between the two components of the body.
- the containment device comprises a cleaning fluid outlet for cleaning one end of the containment device when the containment device is connected to the rotary evaporator.
- the second connection end comprises a safety valve configured to lower the pressure upon overpressure in the receiving vessel.
- the invention also relates to a rotary evaporator comprising a rotation shaft for driving in rotation a receptacle for receiving a mixture to be evaporated.
- the rotary evaporator comprises a containment device as described above, arranged between the rotation shaft and the receiving vessel.
- the containment device comprises a refrigerant, a container for recovering the evaporated component and a valve device arranged between the refrigerant and the recovery vessel.
- the containment device comprises a refrigerant and a container for collecting the evaporated component, the collecting container comprising a vacuum port.
- FIG 1 schematically illustrates a rotary evaporator comprising a containment device according to one embodiment of the invention.
- FIG 2 is a perspective view of a containment device according to one embodiment of the invention.
- FIG 3 shows the assembly formed by the containment device illustrated in Figure 2 and a receptacle for receiving a mixture to be evaporated.
- FIG 4 schematically illustrates a rotary evaporator comprising a containment device according to another embodiment of the invention.
- Figure 1 illustrates a rotary evaporator intended for the separation of several constituents of a mixture and designated by the general reference numeral 1.
- the rotary evaporator 1 comprises a receptacle 2 for receiving the mixture to be evaporated which, as shown, is preferably a flask.
- the receiving container 2 is immersed in a heating bath.
- a rotation shaft 3 is coupled to a motor unit 4 and ensures the rotational drive of the receptacle for receiving the mixture to be evaporated.
- the rotation shaft 3 is surmounted by a cooler 5 advantageously provided with an inlet and an outlet of coolant liquid, respectively 6 and 7, and with an opening 8 allowing evaporation to be carried out under vacuum.
- a collection vessel 9 is arranged between the rotation shaft 3 and the coolant 5.
- the rotary evaporator 1 also comprises a removable confinement device 10 arranged between the rotation shaft 3 and the receiving container 2.
- the removable containment device 10 comprises a body 11 and first and second connection ends, respectively 12 and 13.
- the first and second connection ends 12 and 13 are each connected to the body 1 1 by a welded end piece on the connecting end 12, 13 to which it is connected and on the body 1 1.
- the first connection end 12 is intended for the connection of the containment device 10 to the rotation shaft 3 of the rotary evaporator 1 and is configured to provide a sealed connection.
- the second connection end 13 is intended for the connection of the confinement device 10 to the receptacle 2 for receiving the mixture to be evaporated and is also configured to ensure a sealed connection.
- sealed connection is meant a connection allowing the passage of the constituent evaporating from the mixture to be evaporated from the receiving container 2 to the confinement device 10 and from the confinement device 10 to the rotation shaft 3 without leakage to the outside.
- rotary evaporator 1 the evaporating component being a solvent.
- the body 1 1 is advantageously configured to be in fluid connection with the first and second connection ends 12 and 13 and comprises a valve system 14.
- the valve system 14 is a ball valve system.
- the ball valve system 14 is disposed between the first and second ends 12 and 13 for the selective passage of the component evaporating from the mixture to be evaporated.
- the constituent which evaporates from the mixture to be evaporated contained in the receiving vessel 2 goes to the condenser 5 where it condenses before being collected in the collecting vessel 9.
- the internal diameter of the confinement device 10 which allows the fluidic connection between the receiving vessel 2 and the rotation shaft 3 will advantageously be adapted to the evaporation rate by the rotary evaporator 1.
- the containment device 10 comprises a single ball valve system 14, in particular a ball valve.
- valve system 14 could be a conical ball system, a butterfly valve or any other suitable valve system, in particular adapted to the flow rate of the component evaporating.
- the first and second ends 12 and 13 and the body 11 will advantageously be chosen from metallic material, preferably stainless steel.
- the body 1 1 is substantially cylindrical and comprises two flanges 1 5 and 16, arranged on either side of the valve system 14 and making it possible to tighten the end pieces connecting the first and second connection ends to the body 1 1 on the body 1 1, for example by means of bolts.
- spacers 17 allow the body 1 1 to be centered.
- the containment device 10 may comprise a manual control means 18 for the opening and closing of the valve system 14 for the selective passage of component evaporating from the mixture to be evaporated between the first and second connection ends. 12, 13.
- the manual control means comprises for example a handle.
- Figure 3 illustrates the assembly formed by the containment device 10 and the receiving container 2.
- the containment device 10 may include a clamp 19 to strengthen the connection between the second connection end 13 and the receiving container 2 by tightening the second connection end 13 on the receiving container 2.
- the confinement device 10 can include a removable connector 20.
- the removable connector 20 comprises a first portion 21 for connecting the removable connector 20 to the first connection end 12 and a second portion 22 for connection to the rotation shaft 3 of the rotary evaporator 1 to which the device for containment 10 must be connected.
- the diameter of the second portion 22 of the removable connector 20 can thus be adapted to the diameter of the rotation shaft 3 to allow the connection. This has the advantage of being able to use the same confinement device 10 on several rotary evaporator profiles and in particular several rotation shaft diameters by simply adding the appropriate connection.
- the evaporation circuit of the rotary evaporator 1 is placed under a static vacuum using the opening 8 to allow the introduction of the product through the fluid inlet 24, the containment device being in position. opened.
- valve system When the evaporator is in operation, the valve system
- valve system 14 When the evaporation is complete, the valve system 14 is closed. To recover the product remaining in the receiving container 2 after evaporation of the mixture, the assembly formed by the receiving container 2 and the containment device 10 which is removable is removed from the evaporator. This way, the remaining product is isolated from the outside air.
- the confinement device 10 may be in the form of an assembly of at least two independent components which can be connected in a sealed manner.
- One of the two components comprises the first connection end 12 to the receiving receptacle 2 and the other component comprises the second connection end 13 to the rotation shaft 3.
- the components each advantageously comprise a valve system 14 for the selective passage of component evaporating from the mixture to be evaporated between the two components of the body.
- valve systems 14 of each component can be closed and the two components separated. In this way, it is possible to keep both the product remaining after evaporation in the receiving vessel 2 and the evaporation circuit in the rest of the rotary evaporator 1 isolated from the outside air.
- rotary evaporator 1 Provision may also be made for the confinement device 10 to include means for cleaning in place making it possible to clean one of the ends of the confinement device 10 after having closed the valve system 14 without it being necessary to remove it from the device.
- the containment device 10 may include a cleaning fluid outlet 23.
- the coolant 5 and the recovery container 9 each to include a cleaning fluid inlet, respectively referenced 24 and 25.
- the cleaning fluid inlets 24 and 25 are shown closed, so same as the cleaning fluid outlet 23 of the containment device 10 in Figure 2.
- the cleaning fluid outlet 23 is preferably disposed between the valve system 14, here a ball valve system, and the first connection end 12.
- the cleaning fluid sucked under vacuum, then flows from the cleaning fluid inlet 24, advantageously arranged downstream of the rotation shaft 3 of the rotary evaporator 1 to the recovery container 9, passing through the containment device 10 from the first connection end 12 to the cleaning fluid outlet 23.
- the rinsing liquid will advantageously be chosen as being the same solvent as the solvent of the mixture to be evaporated.
- a purge of part of the containment device 10 and cleaning of the supply circuit of the rotary evaporator 1 can thus be carried out.
- the rotary evaporator 1 also preferably comprises a valve device 26 disposed between the refrigerant 5 and the recovery vessel 9.
- valve device 26 will be closed during the cleaning step in order to prevent the cleaning fluid from being sucked into the shaft of the refrigerant 5.
- the recovery container 9 will further include a vacuum port 27, illustrated in Figure 4, to facilitate and improve the passage of cleaning fluid from the cleaning fluid inlet 24 to the recovery container 9 during the cleaning step.
- a vacuum port 27, illustrated in Figure 4 to facilitate and improve the passage of cleaning fluid from the cleaning fluid inlet 24 to the recovery container 9 during the cleaning step.
- the containment device 10 may also include a valve 28 illustrated in FIG. 2.
- the safety valve 28 is arranged on the second connection end 13 and is configured so as to be able to lower the pressure in the event of overpressure in the receiving vessel 2 to which the second connection end 13 is connected.
- the valve 28 makes it possible to avoid an overpressure in the receiving vessel 2 to which the containment device 10 is connected. This is particularly advantageous when cleaning the containment device 10 in place, and when transporting the balloon containing the product of interest to its place of emptying and packaging.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1901529A FR3092768B1 (fr) | 2019-02-14 | 2019-02-14 | Dispositif de confinement pour évaporateur rotatif |
| PCT/EP2020/052751 WO2020164972A1 (fr) | 2019-02-14 | 2020-02-04 | Dispositif de confinement pour évaporateur rotatif |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3924080A1 true EP3924080A1 (fr) | 2021-12-22 |
Family
ID=67185303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20702321.9A Withdrawn EP3924080A1 (fr) | 2019-02-14 | 2020-02-04 | Dispositif de confinement pour évaporateur rotatif |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20220203260A1 (fr) |
| EP (1) | EP3924080A1 (fr) |
| JP (1) | JP2022520432A (fr) |
| KR (1) | KR20210124259A (fr) |
| CN (1) | CN113365711A (fr) |
| FR (1) | FR3092768B1 (fr) |
| WO (1) | WO2020164972A1 (fr) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01218601A (ja) * | 1988-02-27 | 1989-08-31 | Kimura Rikagaku Seisakusho:Kk | 濃縮機の突沸防止弁 |
| DE4213430A1 (de) * | 1991-07-12 | 1993-01-14 | Herrmann Matthias | Rotationsverdampfer mit statisch gedichtetem dampfraum |
| DE202011106544U1 (de) * | 2011-10-08 | 2013-01-09 | Knf Neuberger Gmbh | Rotationsverdampfer |
| CN203208697U (zh) * | 2012-09-13 | 2013-09-25 | 广东工业大学 | 一种可控连续进料的旋转蒸发仪 |
| DE102014106406A1 (de) * | 2014-05-07 | 2015-11-12 | Hans Heidolph Gmbh & Co. Kg | Rotationsverdampfer |
| DE102014107187A1 (de) * | 2014-05-21 | 2015-11-26 | Hans Heidolph Gmbh & Co. Kg | Rotationsverdampfer |
| DE102014110343A1 (de) * | 2014-07-22 | 2016-01-28 | Hans Heidolph Gmbh & Co. Kg | Rotationsverdampfer |
| CN204592669U (zh) * | 2015-04-08 | 2015-08-26 | 张凤鸿 | 一种新型的防交叉污染、防爆沸的连接管 |
| CN108283819A (zh) * | 2018-02-11 | 2018-07-17 | 北京师范大学 | 一种可自动控制连续进出料的旋转蒸发仪 |
| CN208302228U (zh) * | 2018-04-03 | 2019-01-01 | 山东鑫晟生物技术股份有限公司 | 一种蛋白液旋转蒸发仪 |
-
2019
- 2019-02-14 FR FR1901529A patent/FR3092768B1/fr not_active Expired - Fee Related
-
2020
- 2020-02-04 US US17/429,600 patent/US20220203260A1/en not_active Abandoned
- 2020-02-04 JP JP2021547373A patent/JP2022520432A/ja not_active Abandoned
- 2020-02-04 CN CN202080011588.4A patent/CN113365711A/zh active Pending
- 2020-02-04 KR KR1020217025292A patent/KR20210124259A/ko not_active Abandoned
- 2020-02-04 WO PCT/EP2020/052751 patent/WO2020164972A1/fr not_active Ceased
- 2020-02-04 EP EP20702321.9A patent/EP3924080A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022520432A (ja) | 2022-03-30 |
| CN113365711A (zh) | 2021-09-07 |
| US20220203260A1 (en) | 2022-06-30 |
| KR20210124259A (ko) | 2021-10-14 |
| FR3092768A1 (fr) | 2020-08-21 |
| WO2020164972A1 (fr) | 2020-08-20 |
| FR3092768B1 (fr) | 2021-08-27 |
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Legal Events
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| 18D | Application deemed to be withdrawn |
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