Process and apparatus for separating fine particles by microbubble flotation together with a process and apparatus for generation of microbubbles

2016-08-242016-08-241991-01-01http://hdl.handle.net/10919/72419A method and apparatus are disclosed for the microbubble flotation separation of very fine particles, especially coal, so as to produce a high purity and large recovery efficiently. This is accomplished through the use of a high aspect ratio flotation column, microbubbles, and a countercurrent use of wash water to gently wash the froth. Also, disclosed are unique processes and apparatus for generating microbubbles for flotation in a high efficient and inexpensive manner using either a porous tube or an in-line static generator.application/pdfen-USProcess and apparatus for separating fine particles by microbubble flotation together with a process and apparatus for generation of microbubblesPatenthttp://pimg-fpiw.uspto.gov/fdd/82/815/049/0.pdf7148871209/164209/170210/221.2261/122.1261/DIG75B01F3/04106B01F5/0408B01F5/0476B01F5/0617B01F3/04099B01F2003/04319B01F2003/0439B01F2003/04858B01F2215/0431B03D1/025B03D1/082B03D1/1431B03D1/1456B03D1/245C02F3/20Y02W10/15Y10S261/754981582