Concentrating evaporators – Processes
Patent
1990-03-12
1992-01-28
Bascomb, Jr., Wilbur
Concentrating evaporators
Processes
159 61, 159 161, 159DIG16, 202205, 202234, 203 49, 203 91, 436177, 494 13, 494 17, 494 18, 494 26, 494 37, 494 61, B01D 100
Patent
active
050841335
ABSTRACT:
The centrifugal evaporator-concentrator comprises a central tubular pivot (18) surmounted by a nozzle (35) and constituting the pivot axis of a rotor (9) rotating in a vessel (8) closed by a cover (11). With the rotor rotating in the partial vacuum created by a vacuum pump (33), a small quantity of gas or air is temporarily and periodically admitted into the vessel, this gas being heated by a heating resistor (38) inside the vessel for the purpose of heating by conduction the specimens to be concentrated and of accelerating the rate of evaporation.
REFERENCES:
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patent: 1575061 (1926-03-01), Jones et al.
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patent: 3274756 (1966-09-01), Stern
patent: 3304990 (1967-02-01), Ontko et al.
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patent: 4129419 (1978-12-01), Hermann
patent: 4226669 (1980-10-01), Vilardi
patent: 4244513 (1981-01-01), Fayer
patent: 4324557 (1982-04-01), Wegstedt
patent: 4693702 (1987-09-01), Carson et al.
Guy Jean L.
Serveau Michel
Bascomb, Jr. Wilbur
Jouan
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