SU384525A1 - MACHINE FOR DISTILLATION OF VOLATILE SUBSTANCES - Google Patents

Description

one

A known apparatus for the distillation of volatile substances, such as ammonia, for a quantitative determination, comprising an evaporative flask, a tube with a float valve and a receiver.

However, the well-known apparatus does not provide the necessary intensification of the process, because the distance between the evaporating flask and the receiver is large enough, and part of the heat generated during the fireout is quenched when this distance passes, resulting in a distillation process that takes 25-30 minutes.

The purpose of the invention is to increase the process intensification.

This goal is achieved by the fact that the receiver is placed above the evaporator bulb, and the tube with the float gate is connected to the bottom part of the receiver.

In addition, the float tube is equipped with a Bunsen valve and the receiver is equipped with a cooling jacket.

The drawing shows a diagram of the proposed apparatus.

The apparatus consists of an evaporation flask 1, in the upper corner of which there is a funnel 2 with a tap. A float valve 3 is inserted into the evaporator flask throat with a stopper 3, the upper end 4 of which is equipped with a Bunsen valve 5 and inserted into the bottom of the receiver 6. Receiver 6 is equipped with a cooling jacket 7 made, for example, in the form of a glass having a valve 8 in the bottom. The device is made of heat-resistant

glass

Discharge liquid (for example, ammonia solution) is poured into the evaporation flask / through the funnel 2 and closed with a stopper with a float gate 3 inserted into it,

the upper end 4 of which is connected via a plug to the receiver 6. The receiver 6 is filled with a fluid to absorb the analyte (for example, titrated sulfuric acid to absorb ammonia),

and cooling down 7,330-350 ml of cold tap water. In addition, a reagent is poured in through the funnel 2 (and, for example, an alkali in the determination of nitrogen) and the valve of the funnel 2 is closed. Then the evaporative

flask / closed plastic holder. When a liquid is casting in an evaporating flask, 1 water vapor and a substance being detected will raise the float gate 3 up and through the tube through the Bunsen valve 5 nostuns

to receiver 6 with absorption liquid. Due to the fact that the lower part of the float valve 3 is ground in and there is a Bunsen valve 5, the liquid from the receiver 6 cannot be transferred to the experimental flask /.

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