Patent ID: 6120741
Filing Date: 2000-09-19
Classification: B01J,H05B

Abstract:
Device that can carry out a chemical or physicochemical reaction on a product present in a quantity of about 1 liter, comprisinga) a microwave generator (10) for generating single-mode microwaves having a wavelength,b) a reactor (30) having a containment volume, made of microwave-transparent material, for containing the product,c) a microwave application cavity (20) containing said reactor andd) a cover (40) having an outer edge,characterized in that,said application cavity is bounded by (i) a closed side wall (21) approximating a cylinder of revolution about an axis X and (ii) a bottom wall (22),said application cavity is open at the top by an upper opening which provides for fitting and removing the reactor,said bottom wall has an entry port (23) for said single-mode microwaves to enter the application cavity and propagate along said axis X,said application cavity has dimensions which allow for predetermining the resonant frequency of the single-mode microwaves in all planes transverse to the axis X in the application cavity,said application cavity has, between the entry port and the upper opening, a height corresponding to three half-wavelengths of the of the single-mode microwaves in said application cavity, thereby, providing a homogeneous distribution of the microwaves in the application cavity,said cover closes the upper opening of the application cavity in a sealed manner, preventing propagation of the single-mode microwaves outside the application cavity, andsaid cover includes at least one conduit (41) connecting the inside of the application cavity to the outside so that the application cavity can be subjected to atmospheric pressure.