Open AccessMicro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, July 1-September 30, 1996
Author(s) -
S. Chander,
R. Hogg
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/466726
Subject(s) - agglomerate , economies of agglomeration , froth flotation , coal , reagent , process engineering , environmental science , waste management , chemical engineering , materials science , pulp and paper industry , metallurgy , chemistry , engineering , organic chemistry
The goals of this research program are to demonstrate the technical and economic feasibility of a micro-agglomerate flotation process and to establish the essential criteria for reagent selection and system design and operation. We are investigating the use of a hybrid process - Micro-agglomerate flotation - which is a combination of oil-agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro- agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30-50 mm in size) rather than individual coal particles (1-10 mm) the problems of froth overload and water/mineral carryover should be significantly alleviated