PREPARATION AND USE OF XANTHOGEN CHLOROPROPYL FORMATE FLOTATION REAGENTS

摘要

This invention as described is concerned with a process for preparing a xanthogen-formate bearing flotation reagent which comprises (1) mixing together 2-chloro isopropyl chloroformate and an aqueous alcohol-containing solution of an alkali metal lower alkyl xanthate and forming an insoluble oily phase and an aqueous phase, and (2) separating and washing the oily phase as the product. The product, characterized as a lower alkyl xanthogen 2-chloropropyl formate, is a valuable collector for use in the flotation of copper sulfide ores.