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Title:
REDUCING AGENT-FREE VACUUM IRON PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/040660
Kind Code:
A1
Abstract:
Disclosed in the present invention is a reducing agent-free vacuum iron production method. Under a vacuum condition of 10-10-9 Pa, laser or a solar focused light beam having a power density of 10-104 W/cm2 is used to irradiate an iron-containing oxide (mineral) sample at an angle of 0.5-90° for decomposition to produce elemental iron and a gaseous substance of oxygen; a circulating cooling collector is placed at 1-500 cm above the sample to deposit and collect a product containing metal iron; finally, mineral separation is used to obtain metal iron powder, thereby achieving the purpose of reducing agent-free zero-carbon clean iron production. The reducing agent-free vacuum iron production method provided by the present invention is simple, easy to operate and environment-friendly, features zero carbon and zero emission, has the potential of large-scale continuous production, and is expected to be applied to the technical field of future intelligent clean high-efficiency iron production and on-site metallurgy of extraterrestrial iron-containing mineral resources.

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Inventors:
LI GUANGSHI (CN)
LU XIONGGANG (CN)
ZOU XINGLI (CN)
CHENG PENG (CN)
LIANG JIAYING (CN)
ZHAO PENGFEI (CN)
Application Number:
PCT/CN2022/116019
Publication Date:
March 23, 2023
Filing Date:
August 31, 2022
Export Citation:
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Assignee:
UNIV SHANGHAI (CN)
International Classes:
C21B15/00; C25C1/06
Foreign References:
CN113736945A2021-12-03
CN106544695A2017-03-29
CN205062101U2016-03-02
CN104482663A2015-04-01
CN111004883A2020-04-14
CN109355108A2019-02-19
CN101163639A2008-04-16
CN105695767A2016-06-22
US20160208362A12016-07-21
Attorney, Agent or Firm:
BEIJING ZHONGRUIZHIHENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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