Microtube distillation and condensation method and device

Abstract

The invention discloses a microtube distillation and condensation method and device. The method and the device can realize distillation and condensation of little liquid at the normal pressure, are in accordance with a conventional laboratory in heating and condensing condition, and meanwhile can prevent bumping of liquid. The provided microtube distillation and condensation device can be used cooperatively with an automatic distillation and condensation analyzer to realize distillation and condensation at the normal pressure. Interval bumps are arranged on the outer wall of a heating tube of the microtube distillation and condensation device, so that a heating wire can be conveniently twined for heating; through design of a gas-liquid separation ball and an olecranon-shaped gas-liquid separation tube, the gas-liquid separation is realized, and only steam can enter a condensing tube, so that the condition that liquid to be distilled is suddenly boiled to rush into a collecting tube to pollute distillation can be prevented; a characteristic concave-convex structure on the inner wall of the heating tube can be used for preventing bumping.

Description

technical field [0001] The invention relates to a distillation method and device, in particular to a microtube distillation condensing device and a method for using the device to carry out microtube distillation condensation. The device and method can be used for microtube distillation condensation of volatile phenols. Background technique [0002] In analytical chemistry, there are some indicators of test methods that include distillation condensation, such as volatile phenols, etc. When measuring such indicators with online automatic analysis instruments, a similar distillation and condensation method should also be used. [0003] In the distillation and condensation method in the laboratory, the Erlenmeyer flask is often used for heating, and then water-cooled for condensation. This method consumes a lot of reagents, is cumbersome to operate, and the device is bulky and fragile, so it cannot be directly applied to online automatic analysis instruments. Various heating a...

AI Technical Summary

Problems solved by technology

This method consumes a lot of reagents, is cumbersome to operate, and the device is bulky and fragile, so it cannot be directly applied to online automatic analysis instruments.

Various heating and condensation methods used in online automatic analysis instruments, such as sealed tube heating film separation, etc., have a large gap with the heating and condensation conditions in the laboratory, and the measured data are often inaccurate.

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