Chemical synthesis apparatus having differential pumping means

Details Chemical synthesis apparatus having differential pumping means Chemical synthesis apparatus having differential pumping means

1977-06-20

1980-01-08

Scovronek, Joseph

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

422129, 422198, 422200, 62 555, B01J 100, B01J 3700

Patent

active

041827422

ABSTRACT:
Chemical synthesis apparatus includes a differential pumping device mounted in an evacuable container between an evaporant source providing a first chemical constituent and the reaction region. The differential pumping can be provided by apertured diaphragms or hollow cones, which may be cooled, mounted directly above the source which is thereby maintained at a lower pressure than the reaction region. The source may be an electron beam source or a resistively heated source arranged to direct the evaporant upwards into the reaction region and a second chemical constituent may be introduced into the reaction region. The invention also provides a method of chemical synthesis in which differential pumping is carried out between the reaction region and the source of one of the constituents.

REFERENCES:
patent: 2796555 (1957-06-01), Connor
patent: 2946668 (1960-07-01), Richelsen
patent: 3009828 (1961-11-01), Rogers
patent: 3252652 (1966-05-01), Trendelenburg et al.
patent: 3494743 (1970-02-01), Baughman et al.
patent: 3957954 (1976-05-01), Gault
patent: 4012201 (1977-03-01), Powell et al.
patent: 4023398 (1977-05-01), French et al.
patent: 4053577 (1977-10-01), Arkless
Young et al, "Vapor Synthesis: . . . ", J. Appl. Chem. Biotechnol, [25], 641-651, 1975.
"Chemistry of Transition--Metal Vapors . . . ", Timms, J. Chem. Soc. (A), 1970, pp. 2526-2528.

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