Production of High-Grade Potassium Chloride from a Sinter Plant Baghouse Dust

A sinter plant baghouse dust has been treated as a hazardous solid waste, and disposed at a very high price. A series of leaching tests were conducted to examine the possibility to produce high grade potassium chloride from the solid waste. It is found that around 40% of the solid wastes can dissolve into water, and a deposit with more than 90% KCl can be produced after simply drying the solution.