Title:
有価金属を含有する精鉱粒子の処理工程および設備
Document Type and Number:
Japanese Patent JP2014506288
Kind Code:
A
Abstract:
A process and a plant for treating ore concentrate particles containing valuable metal and having at least arsenic and sulfur containing components. The process comprises a two-stage roasting process comprising a first roasting step and a second roasting step. A gas mixture is formed from the first process gas component obtained from the first roasting step and from the second process gas component obtained from the second roasting step. Post combustion of the gas mixture is made in a post combustion chamber that uses the sulphide rich first process gas component and the second process gas component as oxidizer gas in order to decompose SO3 in the gas mixture. The exit gas is exposed to subsequent gas cooling and dust removal steps.
Inventors:
Holmstrom, Ake
Lundholm, Karin
Berg, Gunnar
Guntner, Jochen
Lundholm, Karin
Berg, Gunnar
Guntner, Jochen
Application Number:
JP2013543841A
Publication Date:
March 13, 2014
Filing Date:
December 14, 2010
Export Citation:
Assignee:
OUTOTEC OYJ
International Classes:
C22B1/10; C22B11/00; C22B15/00; C22B19/00; F23G7/06; F27B15/12; F27B15/14; F27B15/16; F27D17/00
Domestic Patent References:
| JPS6013036A | 1985-01-23 | |||
| JPS6013036A | 1985-01-23 |
Foreign References:
| US5123956A | 1992-06-23 | |||
| US6482373B1 | 2002-11-19 | |||
| US3791812A | 1974-02-12 | |||
| US5123956A | 1992-06-23 | |||
| US6482373B1 | 2002-11-19 | |||
| US3791812A | 1974-02-12 |
Attorney, Agent or Firm:
Takao Katori