US 2002/0050449 A1 · Solvent distillation apparatus

Abstract

The object of the invention is to provide a solvent distillation apparatus capable of preparing a highly pure anoxic, dehydrated solvent. A distilling flask is connected to a vacuum double-barrel fractionating column by a glass flange. The upper end of the fractionating column is connected to a middle portion of a reflux condenser. The upper end of the reflux condenser is provided with an outlet for a purge gas, and the lower end thereof is connected to a condensate reservoir. The base of the condensate reservoir is connected to the fractionating column near a lower end thereof via a Young cock, and also connected to a collecting flask via a Young cock and a glass flange. An immersion tube is used to blow an inactive gas into a base portion of the condensate reservoir. The fractionating column, the reflux condenser and the condensate reservoir are integrated as one body.

Claims6

Dependent claims

A solvent distillation apparatus comprising:

a distilling flask to be supplied with a solvent before it is refined;
a collecting flask for collecting the solvent after it is refined;
a fractionating column connected to a mouth of the distilling flask;
a reflux condenser having a middle portion thereof connected to an upper end of the fractionating column, and an upper end thereof provided with an outlet for a non-condensable gas;
and
a condensate reservoir connected to a lower end of the reflux condenser,
wherein:
the condensate reservoir has a base thereof connected, via a first flow adjusting valve, to a portion of the fractionating column near a lower end thereof, and also connected to the mouth of the collecting flask via a second flow adjusting valve;
and
the condensate reservoir has an inlet provided near a base thereof for blowing therethrough an inactive gas.

7 more elements

Dependencies are inferred from the claim text.

Solvent distillation apparatus

Life of this patent

Solvent distillation apparatus

Life of this patent

Abstract

Claims6