Abstract
Lowering of filter cake moisture of ultra-fine (d50 = 25 µm) coal to a 20 percent level using the conventional vacuum filtration could be achieved using a combination of metal ions and surfactants. Pretreating coat slurry with about 0.2 Kg/ton of a surfactant and 50 ppm of copper or 10 ppm of aluminum ions provided filter cake containing 22.8 percent moisture. The lowering of moisture is explained due to formation of hydrophobic micro-aggregates which facilitates dewatering.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
