Title:
PROCESS FOR RECOVERYING VALUABLE METALS FROM WASTE CATALYST
Document Type and Number:
WIPO Patent Application WO/2009/151147
Kind Code:
A1
Abstract:
Provided is a process for recovering high-purity, nickel, cobalt, molybdenum, and vanadium from a waste catalyst by a simple means in a high yield. The process comprises the step of heating a waste catalyst containing valuable metals in a non-oxidizing atmosphere to deoil the waste catalyst via the pyrolysis of adhering oil, the step of co-pulverizing the deoiled waste catalyst and a chloride to form chloride of nickel and/or cobalt, the step of leaching the co-pulverized waste catalyst with water to dissolve nickel and/or cobalt in water, the step of oxidizing the obtained leach residue, which remains after the water leaching and contains molybdenum and/or vanadium, to form oxide of molybdenum and/or vanadium, and the step of subjecting the resulting leach residue, which contains oxide of molybdenum and/or vanadium, to alkaline leaching to dissolve molybdenum and/or vanadium in an alkaline solution.
Inventors:
SHIOKAWA, Takahiro (Shibakoen First Building,8-2,Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
塩川貴洋 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビルＪＦＥミネラル株式会社内 Tokyo, 〒1050014, JP)
SUGINOBE, Hidetaka (Shibakoen First Building,8-2,Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
杉辺英孝 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビルＪＦＥミネラル株式会社内 Tokyo, 〒1050014, JP)
塩川貴洋 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビルＪＦＥミネラル株式会社内 Tokyo, 〒1050014, JP)
SUGINOBE, Hidetaka (Shibakoen First Building,8-2,Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
杉辺英孝 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビルＪＦＥミネラル株式会社内 Tokyo, 〒1050014, JP)
Application Number:
JP2009/061063
Publication Date:
December 17, 2009
Filing Date:
June 11, 2009
Export Citation:
Assignee:
JFE MINERAL COMPANY,LTD. (Shibakoen First Building, 8-2Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
ＪＦＥミネラル株式会社 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビル Tokyo, 〒1050014, JP)
TOHOKU UNIVERSITY (1-1 Katahira 2-chome, Aoba-ku Sendai-sh, Miyagi 77, 〒9808577, JP)
国立大学法人東北大学 (〒77 宮城県仙台市青葉区片平二丁目１番１号 Miyagi, 〒9808577, JP)
SHIOKAWA, Takahiro (Shibakoen First Building,8-2,Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
塩川貴洋 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビルＪＦＥミネラル株式会社内 Tokyo, 〒1050014, JP)
ＪＦＥミネラル株式会社 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビル Tokyo, 〒1050014, JP)
TOHOKU UNIVERSITY (1-1 Katahira 2-chome, Aoba-ku Sendai-sh, Miyagi 77, 〒9808577, JP)
国立大学法人東北大学 (〒77 宮城県仙台市青葉区片平二丁目１番１号 Miyagi, 〒9808577, JP)
SHIOKAWA, Takahiro (Shibakoen First Building,8-2,Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
塩川貴洋 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビルＪＦＥミネラル株式会社内 Tokyo, 〒1050014, JP)
International Classes:
C22B7/00; B09B3/00; C22B23/00; C22B34/22; C22B34/34
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JFE Techno-Research Corporation 7th Floor, Yanagiya Building, 1-10, Nihonbashi 2-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
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