Laboratory evaporation apparatus

Details Laboratory evaporation apparatus Laboratory evaporation apparatus

1989-10-23

1992-03-31

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 81, 422102, 422261, 436177, 34 54, 159 161, G01N 2100

Patent

active

051006235

ABSTRACT:
An apparatus for use in isolating solids from liquids by evaporating the liquid, including a vessel for receiving a composition of liquid and solid substances; a gas supply for supplying a drying gas; a gas line for directing the drying gas from the gas supply to the vessel; a liquid supply for supplying a solvent capable of dissolving the solid substance; and a liquid line for directing the solvent from the liquid supply to the vessel. Also included is a sensing means for sensing conditions of evaporation within the vessel and an automatic control system adapted to sequentially initiate a flow of drying gas to the vessel, initiate a flow of solvent to the vessel in response to sensing of a given evaporation condition by the sensing means, interrupt the flow of solvent to the vessel after a certain quantity of solvent has been received thereby, and interrupt the flow of drying gas to the vessel in response to sensing of a particular evaporation condition by the sensing means. The apparatus automatically produces an evaporation cycle, a solvent reconstitution cycle, and a re-evaporation cycle thereby significantly reducing previously required costly manual procedures.

REFERENCES:
patent: 4600473 (1986-07-01), Friswell
patent: 4668636 (1989-05-01), Ringrose et al.
patent: 4815978 (1989-03-01), Mazza et al.

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