Title:
METHOD FOR PREPARING FERRO-SILICON AND MAGNESIUM USING FERRO-NICKEL SLAG, PREPARATION APPARATUS USED THEREFOR, AND SMELTING REDUCTION FURNACE
Document Type and Number:
WIPO Patent Application WO/2013/162269
Kind Code:
A1
Abstract:
Disclosed is a method for preparing magnesium and ferro-silicon using ferro-nickel slag which is a by-product of a process for manufacturing ferro-nickel. The present invention provides a method for preparing magnesium from ferro-nickel slag, comprising the steps of: mixing a first material comprising ferro-nickel slang, ferro-silicon slag, ferro-silicon and a magnesium reduction catalyst; evaporating the mixed first material in a vacuum atmosphere of a thermal reduction furnace; and recovering magnesium evaporated in the thermal reduction furnace. In addition, provided is a method for preparing ferro-silicon from magnesium slag which is a by-product of a magnesium preparation for manufacturing a magnesium reducing agent, and preparing magnesium using ferro-silicon slag which is a by-product of a ferro-silicon preparation. According to the present invention, it is possible to resolve environmental problems by reducing energy costs and decreasing carbon monoxide discharge and recycle a resource discarded as a by-product of a process for preparing magnesium and ferro-silicon.
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Inventors:
KANG WON SUB (KR)
Application Number:
PCT/KR2013/003484
Publication Date:
October 31, 2013
Filing Date:
April 24, 2013
Export Citation:
Assignee:
KANG WON SUB (KR)
International Classes:
C22B26/22
Foreign References:
| KR20100073266A | 2010-07-01 | |||
| KR20100085618A | 2010-07-29 | |||
| JPH0688148A | 1994-03-29 | |||
| JP2002035906A | 2002-02-05 |
Attorney, Agent or Firm:
MYUNG MOON IP & LAW FIRM (KR)
특허법인 명문 (KR)
특허법인 명문 (KR)
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