Abstract: A piezoelectric generator is specified, comprising a deformation body, which spans a projection surface and is embodied with a setpoint pressure surface situated opposite the projection surface, wherein the projection surface can be converted from a smaller projection surface when not loaded under pressure into a larger projection surface when pressure is applied to the setpoint pressure surface substantially perpendicular to the projection surface, and a spring effect is provided which counteracts an application of pressure to the setpoint pressure surface, wherein an electromechanical transducer element comprising a piezoelectric material wholly or partly spans the projection surface, such that the transducer element is embodied in an expandable fashion upon pressure being applied to the deformation body, and electrical microenergy can be generated by means of the piezoelectric material.

Abstract: An electrostatic microgenerator having electret films which are arranged above one another in a double layer and each have a metal layer arranged on one side thereof as an electrode. The films are embedded in a hermetically sealed casing in a loosely wound manner. Applying pressure to a first desired pressure surface, which is provided on the outside parallel to the capacitor plates formed in this manner, makes it possible to generate an electrical voltage by changing the distance between the capacitor plates.

Abstract: A piezoelectric generator (1) is specified, comprising a deformation body (5), which spans a projection surface (6) and is embodied with a setpoint pressure surface (8) situated opposite the projection surface (6), wherein the projection surface (6) can be converted from a smaller projection surface (6) when not loaded under pressure into a larger projection surface (7) when pressure is applied to the setpoint pressure surface (8) substantially perpendicular to the projection surface (6), and a spring effect is provided which counteracts an application of pressure to the setpoint pressure surface (8), wherein an electromechanical transducer element comprising a piezoelectric material wholly or partly spans the projection surface (6), such that the transducer element is embodied in an expandable fashion upon pressure being applied to the deformation body (5), and electrical microenergy can be generated by means of the piezoelectric material.

Abstract: The invention relates to a piezoelectric drive, in particular for microvalves. The drive comprises a deformation layer coupled on one side to a piezoelectric layer, which is provided with at least one pair of electrodes, made of two electrodes of opposite polarities, to provide electricity. According to the invention, both electrodes of opposite polarities of the pair of electrodes are arranged together on the side of the piezoelectric layer facing away from the deformation layer. The invention also relates to a microvalve comprising at least one valve channel and a membrane that opens or closes the valve channel, where the membrane simultaneously forms the deformation layer of such a piezoelectric drive.

Abstract: The invention relates to a piezoelectric drive, in particular for microvalves. The drive comprises a deformation layer coupled on one side to a piezoelectric layer, which is provided with at least one pair of electrodes, made of two electrodes of opposite polarities, to provide electricity. According to the invention, both electrodes of opposite polarities of the pair of electrodes are arranged together on the side of the piezoelectric layer facing away from the deformation layer. The invention also relates to a microvalve comprising at least one valve channel and a membrane that opens or closes the valve channel, where the membrane simultaneously forms the deformation layer of such a piezoelectric drive.

Abstract: In a device for the temperature control of microcomponents, in particular micro-reactors, which preferably have a plate-shaped design and preferably consist of silicon, at least one microcomponent is pressed against a temperature-control element in a holder. A flat heat-conducting connection exists between the microcomponent and the temperature-control element.

Abstract: The present invention relates to processes for the bromination of organic compounds, and to bromination microreactors for carrying out these processes.

Abstract: The present invention relates to a process for the reduction of aliphatic, aromatic or heterocyclic organic compounds by means of hydrides and/or derivatives thereof.

Abstract: The present invention relates to a process for the dehydration of organic compounds to give unsaturated compounds.

Abstract: In a device for connecting microcomponents, in particular microreactors, which preferably have a plate-shaped design and preferably consist of silicon, a sealing plate having apertures which correspond to apertures in the microcomponents is arranged between the microcomponents.

Abstract: The invention relates to a method for the 1,3 dipolar cycloaddition of organic compounds, characterized in that the reaction is carried out in a microreactor.

Abstract: A device for the emulsification and separation of small amounts of immiscible liquid phases has essentially a cover plate (2), which can be tightly connected to a base plate (1), where microchannels (4,4a,5,6,6a) in the form of grooves are cut out on the inner surface (3,3a) of the base plate (1) and/or cover plate (2). In a mixing zone, two microchannels (4,4a) run in a wave shape crossing one another a number of times. In a subsequent separation zone, they run essentially straight combined in a common microchannel (5). The otherwise tightly sealed-off microchannels (4,4a,5,6,6a) can be filled and emptied again via inlet apertures (8,8a) and outlet apertures (9,9a).

Abstract: The present invention relates to a process for the preparation of indoles.

Abstract: An interconnection support for plate-like microcomponents (1) has a support rail (2) which is attached to a support plate (3). An insertion slot (4) for the support rail (2) accommodates an insertion edge (5) of a plate-like microcomponent (1). Like connections (10, 10a), which can be connected to associated connections (11) in an outside (1a) of the plate-like microcomponent (1), are provided in at least one side wall (9) of the insertion slot (4) of the support rail (2).

Abstract: The invention generally relates to a method of formylating organic compounds in a microreactor.

Abstract: The present invention relates to a novel process for the nitration of organic compounds, preferably of aromatic and heteroaromatic compounds, using nitrating reagents which are known from the literature and new types of nitrating reagents.

Abstract: The present invention relates to a process for the metathesis reaction of unsaturated organic compounds.

Abstract: A microcomponent (1) for carrying out chemical reactions has an electric heating element, which is arranged directly on the surface of the microcomponent (1). The electric heating element can have, for example, a printed conductor track (3) applied to the surface of the microcomponent (1). The heating of the microcomponent (1) can be measured continuously using a temperature sensor essentially consisting of a resistance thermometer (4). The microcomponent (1) and the electric heating element can be produced by means of semiconductor manufacturing methods. A plurality of microcomponents (1) can be used arranged alongside one another for carrying out a complex reaction process.

Abstract: In a device for connecting microcomponents, in particular microreactors, which preferably have a plate-shaped design and preferably consist of silicon, a sealing plate having apertures which correspond to apertures in the microcomponents is arranged between the microcomponents.

Abstract: The invention relates to a micro-reactor, which is preferably configured as a plate and preferably consists of silicon. The aim of the invention is to improve the blending of the substances that are to react. To achieve this, the reactor is provided with a mechanic coupling, comprising at least one generator of mechanical oscillations (24). The invention also relates to a device (25) for controlling the temperature of the micro-reactor.