PROCEDURE FOR SUPERVISING AND CONTROLLING A BY MICROWAVES HEATING OF CHEMICAL PROCESS

Process for processing organic specimens

Pressure vessel with check valve

The invention relates to a pressure vessel with a non-return valve, comprising: a base (20) and a lid (24) which can be closed to each other in order to completely enclose, in the mutually closed state, a reaction chamber (22) as a pressure space for inducing and/or promoting a chemical and/or physical pressure reaction of a sample (P) accommodated in the reaction chamber (22); a fluid inlet (FE) with a check valve (4) for conveying fluid into the reaction chamber (22), wherein the check valve (4) extends at least partially within the cover (24).

Verfahren zum Überwachen und Kontrollieren eines durch mikrowellen beheiztem chemischen Prozesses

Process and device for producing high-purity liquid chemicals

For a process for producing high-purity liquids, particularly liquid chemicals, by distillation it is proposed that the liquid to be purified (1) is heated by microwave radiation (5) preferably in the uppermost layers.To implement this process a device with a liquid container (3), with a heat source (5) acting on the liquid container and with a condensation device (8, 9) connected to the liquid container is proposed, which is distinguished in that the heat source (5) in the form of a microwave radiation source is arranged above the liquid to be purified (1) in such a way that preferably the uppermost layers of the liquid (1) are heated.

Method and device for drying materials

Device for implementing chemical reactions and processes in high frequency fields

Scale as a control system

SCALE AS A CONTROL SYSTEM

Most of the working time performed nowadays in a laboratory is devoted to operations implementing a laboratory scale. Therefore the present invention provides a laboratory scale (1) including an interface (19) by means of which said scale (1) communicates with all other conventional equipment that is located in said laboratory. Said interface (19) allows the laboratory scale (1) to transmit to other equipment, not only data specific to weighing, but also instruction data. Said other equipment process, for example, data specific to weighing as a function of instruction data. It can also transmit to said laboratory scale (1), through said interface, data representing work results. It can also transmit to said scale (1) control instructions which release or inhibit certain laboratory scale (1) functions, in accordance with the analysis of data specific to weighing. © KIPO & WIPO 2007 ...

Verfahren zum Überwachen und Kontrollieren eines durch mikrowellen beheiztem chemischen Prozesses

Apparatus for performing chemical and physical processes without sample transfer within a microwave radiation field

Disclosed is an apparatus for use within a microwave radiation field which enables the operator to perform successively a plurality of chemical or physical processes while the apparatus remains in the microwave cavity. The apparatus according to the invention can be used to perform a total microwave solvent extraction including the steps of drying, extraction, filtration, and concentration. Other examples of processes, which are carried out with this apparatus are digestions, hydrolyses, separations, agitations, and precipitations. The apparatus is constructed from a container having an inside vessel. The container and the inside vessel have a substantially closed volume there between. The container and the inside vessel are in fluid communication through a glass fiber filter disposed at approximately the bottom of the inside vessel. The container and the inside vessel are in fluid communication with a plurality of inlet and outlet ports, which provide or receive fluids to or from the inside ...

Sample container handling system

The invention relates to a sample container handling system having a sample container receptacle (2) and a holder (20). The sample container receptacle has a plurality of holding structures (4, 5) each designed to hold a respective sample container (3) and arranged about an axis of rotation (6), and a base (7) having a receiving region (8) for receiving the sample containers held by the holding structures, a side (10) facing away from the receiving region and at least one through opening (11) extending from the side to the receiving region. A seating member is connectable to the bottom of the sample container receptacle to receive it, the seating member having at least one projection extending through the at least one through opening and protruding from the seating region to jack up the one or more sample containers when the seating member receives the sample container receptacle. The invention also relates to a system having a sample container handling system (1) and a pressure container ...

Mixing and reaction of solids, suspensions or emulsions in a microwave field

For mixing and for initiating chemical reactions of solids, suspensions or emulsions in a microwave instrument, the solids, emulsions or suspensions are introduced into a microwave-transparent container. This microwave-transparent container is then rotated under exposure to microwave radiation, the rotation axis being inclined at an angle with respect to the vertical so as to provide an obliquely oriented container. The solids, suspensions or emulsions which have been introduced are made to undergo the reaction (synthesis) by the input of the microwave.

Method of controlling a chemical process by microwave radiation

A system and method for controlling a microwave heated chemical process is disclosed. Time varying concentrations of some chemical substances within fumes in the microwave oven are monitored to detect concentration variations for which responses are known. Responses to the detected variations are initiated to control the chemical process without terminating the process. Examples of responses include varying microwave radiation energy, initiating safety systems, increased venting of the microwave oven, and so forth.