Title:
不溶性フッ化物を含有するTa―Nb―鉱石材料から金属有価物を可溶化する方法
Document Type and Number:
Japanese Patent JP4375630
Kind Code:
B2
Abstract:
The processes of the present invention include mineral acid leaching of a metal containing material, such as an ore residue, containing fluoridated metal values in the presence of a complexing agent which will complex fluoride ions. The processes of the present invention provide for the separation of valuable metal, fluoride and radionuclide values from a feed material of high mineral content wherein the metals and radionuclides are present as substantially water insoluble fluorides or are trapped within a metal fluorine matrix which is substantially insoluble in typical chemical reactant systems.
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Inventors:
Hard, Robert A.
Brown, Patrick M.
Reynolds, James E.
Brown, Patrick M.
Reynolds, James E.
Application Number:
JP53444497A
Publication Date:
December 02, 2009
Filing Date:
March 14, 1997
Export Citation:
Assignee:
CABOT CORPORATION
International Classes:
C01G35/00; C22B34/24; C01F7/50; C01F11/02; C01F11/46; C22B3/04; C22B3/06; C22B25/00; C22B60/02
Domestic Patent References:
| JP7252552A | ||||
| JP1192325A |
Foreign References:
| WO1994023075A1 | ||||
| WO1994001190A1 |
Attorney, Agent or Firm:
Takashi Ishida
Tetsuji Koga
Toshio Toda
Masaya Nishiyama
Higuchi Souji
Tetsuji Koga
Toshio Toda
Masaya Nishiyama
Higuchi Souji