EP 0057445 B1 19870805 - APPARATUS AND METHOD FOR FROTH FLOTATION SEPARATION
Title (en)
APPARATUS AND METHOD FOR FROTH FLOTATION SEPARATION
Publication
Application
Priority
- US 23005881 A 19810129
- US 23005981 A 19810129
Abstract (en)
[origin: EP0057445A2] A method and apparatus for froth flotation separation of the components of a slurry, having particular utility for the beneficiation of coal by the flotation separation of coal particles from impurities associated therewith such as ash and sulfur. A spray nozzle (16) is positioned above a flotation tank (12) having a liquid bath therein, and sprays an input slurry throuph an aeration zone (19) into the surface (14) of the liquid. The spraying operation creates a froth (17) on the liquid surface (14) in which a substantial quantity of particulate matter is floating, while other components of the slurry sink into the liquid. A skimming arrangement (28) preferably skims the froth (17) from the surface (14) as a cleaned or beneficiated product. Moreover, a reycling operation may be provided wherein particulate materials which do not float after being sprayed through the input spray nozzle (18) to provide a second opportunity for recovery of the recycled particles.
IPC 1-7
IPC 8 full level
B03B 9/00 (2006.01); B03B 11/00 (2006.01); B03D 1/14 (2006.01); C10L 9/00 (2006.01)
CPC (source: EP)
B03B 9/005 (2013.01); B03B 11/00 (2013.01); B03D 1/1412 (2013.01); B03D 1/1456 (2013.01); B03D 1/1462 (2013.01); B03D 1/1475 (2013.01); B03D 1/1493 (2013.01); C10L 9/00 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0057445 A2 19820811; EP 0057445 A3 19840801; EP 0057445 B1 19870805; AU 546684 B2 19850912; AU 7985382 A 19820805; CA 1181873 A 19850129; DE 3276901 D1 19870910
DOCDB simple family (application)
EP 82100636 A 19820129; AU 7985382 A 19820126; CA 395233 A 19820129; DE 3276901 T 19820129