Title:
PREPARATION PROCESS AND DEVICE FOR HIGH-PURITY LOW-RADIATION SPHERICAL SILICON MICROPOWDER FOR USE IN 5G BASE STATION
Document Type and Number:
WIPO Patent Application WO/2022/127132
Kind Code:
A1
Abstract:
Disclosed in the present invention are a preparation process and device for high-purity low-radiation spherical silicon micropowder for use in a 5G base station: the uranium in silicon micropowder is effectively separated by means of acid washing, and the separated uranium can be efficiently adsorbed by an adsorption and purification unit, such that the total content of uranium (U) in the ultrafine silicon micropowder is reduced to less than 1×10 -9. In addition, the adsorption and purification unit of a modular design can be conveniently and quickly separated from the system after adsorption is completed by means of SiO2 aerogel therein, in order to re-coat the SiO2 aerogel or replace with a different model of adsorption and purification unit; thus, cyclic usage and scaling up can be achieved.
Inventors:
HE SHUHUI (CN)
QIAO XIUJUAN (CN)
QIAO XIUJUAN (CN)
Application Number:
PCT/CN2021/110063
Publication Date:
June 23, 2022
Filing Date:
August 02, 2021
Export Citation:
Assignee:
SINOTENG SILICA MATERIALS TECH JIANGSU CO LTD (CN)
International Classes:
C01B33/18; C22B60/02
Foreign References:
| CN112573529A | 2021-03-30 | |||
| CN108217664A | 2018-06-29 | |||
| CN101570332A | 2009-11-04 | |||
| CN211613027U | 2020-10-02 | |||
| CN109455728A | 2019-03-12 | |||
| CN110152613A | 2019-08-23 | |||
| CN102826550A | 2012-12-19 | |||
| CN202924748U | 2013-05-08 | |||
| CN107055554A | 2017-08-18 | |||
| JP2019127407A | 2019-08-01 |
Attorney, Agent or Firm:
XUZHOU QIANQIU INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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