Patent ID: 6803237
Filing Date: 2004-10-12
Classification: B01D,G01N,Y10T

Abstract:
A sequential processing reaction vessel for treatment of solids at high temperatures and pressures comprising:a pressure resistant, microwave transparent, outer housing, said housing being able to withstand at least 150 psi of internal pressure at temperatures up to at least 150Â° C.; a chemically inert, microwave transparent, inner housing, said housing positioned within a cavity formed by said outer housing, said inner housing being resistant to reaction with corrosive liquids at temperatures up to at least 150Â° C. and internal pressures up to at least 150 psi; a chemically inert, microwave transparent, filter member, said filter positioned within said inner housing in a substantially horizontal orientation to accommodate placement and retention of a solid sample material, said filter having a pore size which is smaller than a typical particle size of said solid material, said filter permitting retention of said solid material and passage of said corrosive liquids, said filter being resistant to corrosive liquids at temperatures up to at least 150Â° C. and pressures up to at least 150 psi; a chemically inert, microwave transparent, top valve, said top valve having an open position for permitting introduction of said corrosive liquids to a reactor volume formed by said inner housing; said top valve having a closed position which provides a leak-proof seal of said vessel at temperatures up to at least 150Â° C. and pressures up to at least 150 psi; and a chemically inert, microwave transparent, bottom valve, said bottom valve having an open position for permitting removal of said filtered corrosive liquids from said vessel after reactive contact with said solid sample, said bottom valve having a closed position which provides a leak-proof seal of said vessel at temperatures up to at least 150Â° C. and pressures up to at least 150 psi.