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US 6,917,023 B2Granted
Reaction and temperature control for high power microwave-assisted chemistry techniques
AssigneeCEM Corporation
InventorsBrittany L. Hayes, Michael J. Collins
Life of this patent
Estimating the term…
Abstract
A method is disclosed for carrying out microwave assisted chemical reactions. The method includes the steps of placing reactants in a microwave-transparent vessel, placing the vessel and its contents into a microwave cavity, applying microwave radiation within the cavity and to the vessel and its contents while concurrently externally cooling the vessel conductively.
Claims20
A method of carrying out chemical reactions at specific temperatures, the method comprising:
- applying energy to reactants in a vessel using a source other than conduction heating of the vessel or the reactants;
- while concurrently cooling the vessel by conduction by contacting the exterior of the vessel with a fluid;
- and
- while concurrently monitoring a temperature selected from the group consisting of the temperature of the vessel, the temperature of the contents and combination thereof.
1 more element
A method of carrying out chemical reactions, the method comprising:
- applying energy to reactants in a vessel in an instrument that uses a source other than conduction heating of the vessel or the reactants to heat the reactants;
- concurrently cooling the vessel in the instrument by providing a flow of conduction fluid against the vessel in the instrument;
- concurrently monitoring the temperature of the vessel or its contents in the instrument;
- adjusting the heating source to maintain the desired temperature at the cooling capacity that the instrument can provide to the vessel.
1 more element
A method of carrying out multi-step chemical reactions, the method comprising:
- applying energy to reactants in a vessel in an instrument that uses a source other than conduction heating of the vessel or the reactants to heat the reactants to a first set point;
- concurrently cooling the vessel in the instrument by providing a flow of conduction fluid against the vessel in the instrument;
- thereafter applying energy to the reactants in the vessel to heat the reactants to a second set point to thereby initiate a second step reaction;
- concurrently cooling the vessel in the instrument by providing a flow of conduction fluid against the vessel in the instrument;
- concurrently monitoring the temperature and adjusting the heat source during each step to thereby maintain the desired temperature by maximizing the microwave power at the capacity of the cooling source.
2 more elements
Dependencies are inferred from the claim text.