The method USES chemical drying agent to dry raw material in cement production, the additive amount depends upon the water content in raw material to be dried.

The researchers start off by drying their coffee grounds overnight and then pour in some common chemical solvents, such as hexane, ether and dichloromethane, to dissolve the oils.

Because if you are driving change, and the one example I want to give was our switch from conventional toners, which is the drying to chemical toners, and how difficult that was.