METHOD OF ROASTING V, Mo AND Ni-CONTAINING MATTER, AND ROTARY KILN FOR ROASTING OF V, Mo AND Ni-CONTAINING MATTER

Title:

METHOD OF ROASTING V, Mo AND Ni-CONTAINING MATTER, AND ROTARY KILN FOR ROASTING OF V, Mo AND Ni-CONTAINING MATTER

Document Type and Number:

WIPO Patent Application WO/2007/039938

Kind Code:

A1

Abstract:

A method of roasting in which both the C content and S content of roasted ore can be lowered to 0.5% or below and in which an Mo yield of 90% or higher can be ensured. For recovery of the valuable metals of V, Mo and Ni by reducing of a V, Mo and Ni-containing matter with the use of a reducing agent, in advance, a V, Mo and Ni-containing matter with C and S contents is subjected to oxidation roasting by means of rotary kiln (7) to thereby remove the C and S contents. Burner (11) is disposed on raw material charging side (8a) of roasting furnace (8) on which the V, Mo and Ni-containing matter with C and S contents as a raw material is charged, and within the roasting furnace (8), the direction of raw material transfer is arranged so as to be parallel to the flow of oxygen-containing gas introduced in the roasting furnace (8).

Inventors:

TAKAHASHI KENJI (JP)
SUGIMORI HIROICHI (JP)
EHARA NOBUO (JP)

Application Number:

PCT/JP2006/303036

Publication Date:

April 12, 2007

Filing Date:

February 21, 2006

Export Citation:

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Assignee:

JFE MATERIAL CO LTD (JP)
SUMITOMO HEAVY INDUSTRIES (JP)
TAKAHASHI KENJI (JP)
SUGIMORI HIROICHI (JP)
EHARA NOBUO (JP)

International Classes:

C22B1/04; B09B3/00; C22B7/00; C22B23/02; C22B34/22; C22B34/34; F27B7/06; F27B7/10

Foreign References:

JPS5497598A	1979-08-01
JPS54107495A	1979-08-23
JPS4886703A	1973-11-15
JP2003183745A	2003-07-03
JPH0111725A
JPS583936A	1983-01-10
JPH1150162A	1999-02-23
JP2005256174A	2005-09-22
JP2005272917A	2005-10-06

Other References: