Attenuator system for microwave-assisted chemical synthesis
AssigneeCEM Corporation
InventorsWilliam Edward Jennings, Edward Earl King
Life of this patent
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Abstract
An instrument for microwave-assisted chemical processes is disclosed that provides greater flexibility in carrying out microwave-assisted chemistry under varying conditions. The instrument includes a source of microwave radiation, and a cavity in communication with the source, with the cavity including at least one wall formed of two engaged portions that form a barrier to the transmission of microwaves when so engaged. The engaged portions are disengagable from one another, and one of the portions includes a microwave-attenuating opening.
Claims25
An instrument for microwave-assisted chemical processes that provides greater flexibility in carrying out microwave-assisted chemistry under varying conditions, said instrument comprising:
- a source of microwave radiation;
- a cavity in communication with said source;
- said cavity including at least one wall formed of two engaged portions that form a barrier to the transmission of microwaves when so engaged;
- said engaged portions being disengagable from one another;
- and
- one of said portions further including a microwave-attenuating opening.
An instrument for microwave-assisted chemical processes that provides greater flexibility in carrying out microwave-assisted chemistry under varying conditions, said instrument comprising:
- a source of microwave radiation;
- a cavity in communication with said source;
- said cavity including an upper horizontal wall formed of first and second engaged portions that form a barrier to the transmission of microwaves when so engaged;
- said first portion defining a circular opening;
- and
- said second portion having a circular perimeter that corresponds in size to said circular opening;
- said first and second portions being disengagable from one another;
- and
- said second portion further including a microwave-attenuating opening.
A method of increasing the efficiency of microwave-assisted chemical reactions, the method comprising:
- carrying out a first chemical reaction in a reaction vessel in an attenuated cavity of a microwave instrument;
- removing the reaction vessel and the attenuator from the instrument;
- placing a different reaction vessel and a differently-sized attenuator in the same cavity of the instrument;
- and
- carrying out a second chemical reaction in the different vessel in the cavity of the instrument.
Dependencies are inferred from the claim text.