Distillation: apparatus – Apparatus – Systems
Patent
1986-07-23
1988-07-26
Lacey, David L.
Distillation: apparatus
Apparatus
Systems
202205, 202238, 203 1, 203 91, 203DIG18, 159 44, 159DIG16, 159DIG40, 137386, 222 56, B01D 308, B01D 310, B01D 342
Patent
active
047598255
ABSTRACT:
The invention relates to a rotary evaporator for carrying out a processor-controlled distilling operation. A rotary flask (5), a condenser (8) and a distillate collector receptacle (10) of the rotary evaporator (1) are continually kept under vacuum.
According to the invention, the automatically controlled supply of a sample solution to the rotary flask is accomplished by means of a metering receptacle adapted to have the sample solution supplied thereto from a supply container for temporary transitory storage therein prior to transfer of the solution to the vacuum system, or the rotary flask (5), respectively. For discharging the distillate from the distillate collector receptacle (14), an outlet valve associated therewith is operable to connect the collector receptacle to a vacuum conduit (26) for the discharge of the distillate. This provision offers the advantage of permitting substantially discharge of the distillate without requiring the vacuum system to be vented. In an independent advantageous embodiment this is accomplished by the provision of an additional discharge receptacle positioned below the distillate collector receptacle and adapted to be separated therefrom by means of a non-return valve adapted to be closed when the distillate is being discharged from the discharge receptacle (45).
REFERENCES:
patent: 2147977 (1939-02-01), Kalle
patent: 2622062 (1952-12-01), Putt et al.
patent: 3169912 (1965-02-01), Ferrari et al.
patent: 3219551 (1965-11-01), Carel et al.
patent: 3347754 (1967-10-01), Thomas
patent: 3364731 (1968-01-01), Hook
patent: 3489651 (1970-01-01), De Pas
patent: 3577320 (1971-05-01), Randell
patent: 3582473 (1971-06-01), Barnstead
patent: 3602395 (1971-08-01), Reeves
patent: 3998704 (1976-12-01), Follain et al.
patent: 4415075 (1983-11-01), McNesky et al.
patent: 4444623 (1984-04-01), Youngner
patent: 4613412 (1986-09-01), McDermid
Belle et al., "Constant Level Device for Batchwise Distillation", Analytical Chemistry, vol. 47, No. 3, pp. 606-607.
Medvey Bela
Rozsnoki Laszlo
Lacey David L.
Manoh Aran V.
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