Material size distribution in concurrent bio-leaching and precipitation: Experimental procedure and modelling
This study highlights the approach that was used to develop a model for a continuous bioleaching system in stirred tanks. In bioleaching of metallic sulphides, precipitation concurrently occurs with dissolution of sulphides. Therefore, the model incorporates both the leaching and the precipitation kinetics. It is based on a shrinking particle model for the leaching part and a MSMPR crystallizer model with germination and growing kinetics for the precipitation part. To establish the model, it was necessary to have access to the size distribution of both sulphides and precipitates particles. A pre-treatment of the bioleached residue has been developed in the laboratory of BRGM to be able to dissociate sulphides and precipitates particles in the solid phase. The current paper presents the procedure of this pretreatment, the mathematical model in detail and its application to a continuous pilot plant test.
bioleaching precipitation modelling simulation
Pierre Botane Stephane Brochot Patrick DHugues Pauline Spolaore
Caspeo 3 avenue Claude Guillemin, BP 36009, 45060 Orleans Cedex 2, France Brgm 3 avenue Claude Guillemin,BP 36009, 45060 Orleans Cedex 2, France Bio springer 103 rue Jean Jaures, 94704 Maisons-Alfort Cedex, France
国际会议
The 19th International Biohydrometallurgy Symposium(第19届国际生物湿法冶金大会 IBS2011)
长沙
英文
584-592
2011-09-18（万方平台首次上网日期，不代表论文的发表时间）