Title:
METHOD FOR LEACHING IMPURITIES CONTAINED IN MOLYBDENUM OXIDE CONCENTRATES
Document Type and Number:
WIPO Patent Application WO/2010/090478
Kind Code:
A2
Abstract:
The present invention relates to a leaching method that enables the production of good quality molybdenum oxide concentrates by selectively leaching impurities such as copper, iron, lead and zinc from roasted molybdenum oxide concentrates using a leach liquor comprising ammonium chloride and hydrochloric acid. As molybdenum oxide concentrates produced by the leaching method of the present invention are mostly present in the solid state, a process for recovering molybdenum dissolved in the leach liquor is not required.
Inventors:
SONG JIN KON (KR)
HUR CHUN HOI (KR)
LIM KYOUNG MEE (KR)
HUR CHUN HOI (KR)
LIM KYOUNG MEE (KR)
Application Number:
PCT/KR2010/000728
Publication Date:
August 12, 2010
Filing Date:
February 05, 2010
Export Citation:
Assignee:
KWANG YANG FERROALLOY CO LTD (KR)
SONG JIN KON (KR)
HUR CHUN HOI (KR)
LIM KYOUNG MEE (KR)
SONG JIN KON (KR)
HUR CHUN HOI (KR)
LIM KYOUNG MEE (KR)
International Classes:
C22B3/14; C22B34/34
Domestic Patent References:
| WO2008061231A1 | 2008-05-22 |
Foreign References:
| KR20040019292A | 2004-03-05 | |||
| JPS5252895A | 1977-04-28 | |||
| KR20080064516A | 2008-07-09 |
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
특허법인다나 (KR)
특허법인다나 (KR)
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