Flotation classification of ultrafine particles -- A novel classification approach
- Central South Univ. of Technology, Changsha, Hunan (China). Dept. of Mineral Engineering
This paper introduces a novel classification approach named the flotation classification approach which works by controlling interactions between particles. It differs considerably from the conventional classification processes operating on mechanical forces. In the present test, the micro-bubble flotation technology is grafted onto hydro-classification. Selective aggregation and dispersion of ultrafine particles are achieved through governing the interactions in the classification process. A series of laboratory classification tests for {minus}44 gm kaolin have been conducted on a classification column. As a result, about 92% recovery for minus 2 {micro}m size fraction Kaolin in the final product is obtained. In addition, two criteria for the classification are set up. Finally, a principle of classifying and controlling the interactions between particles is discussed in terms of surface thermodynamics and hydrodynamics.
- OSTI ID:
- 271946
- Report Number(s):
- CONF-9510120-; ISBN 0-87335-140-1; TRN: IM9635%%373
- Resource Relation:
- Conference: 19. international mineral processing congress, San Francisco, CA (United States), 22-27 Oct 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the 19. international mineral processing congress: Physical and Chemical Processing. Volume 2; PB: 286 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Removal of pyrite and trace elements from waste coal by dissolved-CO{sub 2} flotation and chelating agents. Final technical report, September 1, 1993--August 31, 1994
Microbubble flotation of fine coal. Final report