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Ultrahigh vacuum molecular distillation equipment

A molecular distillation and ultra-high vacuum technology, applied in molecular distillation and other directions, can solve the problems of easy oxidation of oxidizable materials, and achieve the effects of stable pumping speed, high heating efficiency and cost reduction.

Active Publication Date: 2015-07-22
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of the above-mentioned existing equipment, and provide a kind of ultra-high vacuum molecular distillation equipment, which can meet the requirements of high vacuum degree, and realize the vacuum environment without oil and pollution, and can avoid the production of easily oxidized materials. easily oxidized

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Embodiment Construction

[0027] The present invention is further described below:

[0028] like figure 1 As shown, an ultra-high vacuum molecular distillation equipment includes an ultra-high vacuum system and a molecular still. The ultra-high vacuum system is composed of a pumping unit and a vacuum measuring unit. The pumping unit is composed of a dry pump 1 as a backing pump Connected with the cryopump 2, the vacuum measurement unit is composed of a resistance vacuum gauge 5 and an ionization vacuum gauge 6 arranged on the vacuum pipeline between the cryopump 2 and the liquid nitrogen cold trap 7, and the liquid nitrogen cold trap 7 is connected with the molecular still A regulating ball valve 8 is arranged between them; the molecular still has a glass shell structure as a whole, and the still is composed of an outer shell 12, a feed port 16 connected to the upper side of the outer shell 12, and a heavy fraction connected to both sides of the lower end of the outer shell 12. Outlet 17 and light fra...

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Abstract

Belonging to the vacuum technology field, the invention relates to ultrahigh vacuum molecular distillation equipment, which consists of an ultrahigh vacuum system and a molecular distiller. The ultrahigh vacuum system uses the combination of a low temperature pump and a dry mechanical pump to replace the oil pump in traditional molecular distillation equipment, thus reducing pollution of oil vapor to distillation products, and improving the product quality. The molecular distiller is a glass structure, can observe the material running conditions visually, and a film scraping rotor in the molecular distiller and an external motor are in magnetic driving seal, thus significantly improving the distillation system sealing performance. The equipment provided by the invention has the advantages of: high vacuum degree up to 10<-6>Pa magnitude, and lowered material distillation temperature, improves the separation efficiency, saves energy, and solves the oil pollution problem of vacuum pumps, and the distilled material is not easy to be oxidized and polluted.

Description

technical field [0001] The invention belongs to the technical field of molecular distillation equipment, and in particular relates to an ultra-high vacuum molecular distillation equipment suitable for materials with high boiling point and easy oxidation. Background technique [0002] Molecular distillation technology relies on the difference in the mean free path of different molecules to achieve liquid-liquid separation of materials under vacuum conditions. Due to its incomparable advantages of traditional distillation, such as low distillation temperature, low distillation pressure, short material residence time, good separation effect, etc., it is suitable for the concentration and purification of high molecular weight, high boiling point, high viscosity substances, and is widely used. Purification and separation of substances in petrochemical, pharmaceutical and health care, food industry and other fields. [0003] Although the existing molecular distillation equipment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/12
Inventor 马寅光陈江王骥成大鹏黄良育朱宏伟郑宁杨军刘苏民
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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