发明名称 |
FLOTATION SEPARATION OF FINE COAL PARTICLES FROM ASH-FORMING PARTICLES |
摘要 |
Coal fines are processed by flotation separation to separate coal particles from ash-forming component particles. Coal fines are mixed water under high shear mixing conditions to form an aqueous slurry of coal fines containing between 15 wt.% and 55 wt.% coal fines. The aqueous slurry is introduced into a coal flotation cell to separate coal particles from ash-forming component particles by flotation separation, wherein the coal fines have a particle size less than 500 µm, and more preferably less than 300 µm. Bubbles are generated in the coal flotation cell having a bubble size and bubble quantity selected to float the coal particles and to form a coal-froth containing at least 15 wt.% solid particles. The solid particles include coal particles and ash-forming component particles. The coal-froth is collected for further processing. |
申请公布号 |
WO2016048793(A1) |
申请公布日期 |
2016.03.31 |
申请号 |
WO2015US50737 |
申请日期 |
2015.09.17 |
申请人 |
EARTH TECHNOLOGIES USA LIMITED |
发明人 |
SWENSEN, JAMES S.;HODSON, SIMON K.;HODSON, JONATHAN K. |
分类号 |
B03D1/00;B03D1/02;B03D103/08 |
主分类号 |
B03D1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|