Chemistry: physical processes – Physical processes – Crystallization
Patent
1975-06-27
1976-05-18
Reese, Robert M.
Chemistry: physical processes
Physical processes
Crystallization
73 86, G01N 1700, G01N 3320
Patent
active
039574407
ABSTRACT:
An upright cylindrical vessel is formed with a plurality of fittings at its upper end to receive a thermometer, a stirrer, a reflux condenser, means for evacuating or pressurizing the vessel or the like, and is open at its other end which is provided with a circular bead. A pair of clamping rings, one of which engages behind the bead, are bridged by clamping screws to secure a disk of the workpiece material to the open end of the vessel. The corrosive medium is introduced into the vessel and attacks the workpiece surface exposed therein.
REFERENCES:
patent: 3014788 (1961-12-01), Littler et al.
patent: 3197698 (1965-07-01), Schaschl et al.
patent: 3582282 (1971-06-01), Kampf et al.
patent: 3846795 (1974-11-01), Jones
Dubno Herbert
Reese Robert M.
Ross Karl F.
Wechsler Rudolf
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