Title:
APPARATUS AND METHOD FOR PURIFYING SELENIUM SLAG IN VACUUM
Document Type and Number:
WIPO Patent Application WO/2023/142252
Kind Code:
A1
Abstract:
The present invention relates to the technical field of crude selenium purification, and provides an apparatus and method for purifying selenium slag in vacuum. According to the apparatus for purifying selenium slag in vacuum, by providing an inclined condensation plate and a horizontal condensation plate, the degree of separation of selenium and other impurities in crude selenium is improved, and the purity of obtained selenium is improved. In addition, the apparatus for purifying selenium slag in vacuum provided by the present invention has a simple structure. In the present invention, selenium slag to be purified is heated by a heating device to form steam; impurities in the steam are condensed by the inclined condensation plate and the horizontal condensation plate and then flow back into a material container; the purified selenium steam enters a cooling system through holes in a condenser, is condensed on a cooling cover, is converged into a flow convergence disc, and is collected in a collection system through a melt pipeline. The method provided by the present invention is simple to operate. The data of embodiments shows that according to the apparatus provided by the present invention, selenium having purity of 99.995% can be obtained from selenium slag having a mass fraction of 60%.
Inventors:
XU BAOQIANG (CN)
LUO HUAN (CN)
JIANG WENLONG (CN)
ZHA GUOZHENG (CN)
LIU LANG (CN)
YANG BIN (CN)
ZHEN TIANTIAN (CN)
XIONG HENG (CN)
TIAN YANG (CN)
KONG LINGXIN (CN)
LI YIFU (CN)
WANG FEI (CN)
YANG JIA (CN)
QU TAO (CN)
LIU DACHUN (CN)
LUO HUAN (CN)
JIANG WENLONG (CN)
ZHA GUOZHENG (CN)
LIU LANG (CN)
YANG BIN (CN)
ZHEN TIANTIAN (CN)
XIONG HENG (CN)
TIAN YANG (CN)
KONG LINGXIN (CN)
LI YIFU (CN)
WANG FEI (CN)
YANG JIA (CN)
QU TAO (CN)
LIU DACHUN (CN)
Application Number:
PCT/CN2022/082642
Publication Date:
August 03, 2023
Filing Date:
March 24, 2022
Export Citation:
Assignee:
UNIV KUNMING SCIENCE & TECHNOLOGY (CN)
International Classes:
C01B19/02; C22B9/02
Foreign References:
| CN204434697U | 2015-07-01 | |||
| CN211057196U | 2020-07-21 | |||
| CN110745789A | 2020-02-04 | |||
| CN109319746A | 2019-02-12 | |||
| GB1417440A | 1975-12-10 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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