Device and method for preparing high-purity tellurium through horizontal rotary vacuum distillation

CN120242510APending Publication Date: 2025-07-04CENT SOUTH UNIV
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Patent Information

Application Number
CN202510197639.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

The existing high-purity tellurium preparation technology has problems such as low production efficiency, discontinuity, low degree of mechanical manualization, and difficulty in effectively separating impurities such as magnesium, selenium, sodium, and sulfur.

Method used

The horizontal rotary vacuum distillation device is adopted, including the atmosphere control system, the vacuum system and the rotation control system. Through the rotation and independent temperature control of the four-stage distillation condenser, the efficient separation of metal tellurium and volatile impurities is achieved, and two distillations are achieved to avoid cross-contamination.

Benefits of technology

The continuous preparation of high-purity tellurium is achieved, the production efficiency is improved, the operation process is simplified, the impact of impurity migration is reduced, and a high-purity tellurium product is obtained.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a device and a method for preparing high-purity tellurium through horizontal rotary vacuum distillation. The device comprises an atmosphere control system, a vacuum system, a distillation system and a rotation control system, the distillation system comprises a first distillation condenser, a second distillation condenser, a communicating vessel, a third distillation condenser and a fourth distillation condenser which are sequentially connected, and the atmosphere control system comprises an air inlet control system and an air outlet control system. The vacuum systems are respectively arranged at two ends of the distillation system and are connected to the distillation system; and the rotation control system is connected to the second distillation condenser and the third distillation condenser and is used for controlling the second distillation condenser and the third distillation condenser to horizontally rotate. According to the device for preparing the high-purity tellurium through horizontal rotation vacuum distillation, the rotation control device is introduced to control the two distillation condensers to rotate, two times of distillation of the raw material 5N tellurium in the same device can be achieved, and the device is suitable for preparing various high-purity metal.
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Citation Information

Patent Citations

  • High-purity tellurium production process

    CN117923434A

  • Method and equipment for preparing high-purity tellurium from 4N high-selenium distilled tellurium

    CN117945359A