Process for the precipitation and separation of cadmium sulphide from the raffinates of the purification of phosphoric acid

摘要

The present invention describes a process for the precipitation and separation of cadmium sulfide from the Raffin capacitances of phosphoric acid purification by is one raffinate cadmium containing a H₂S-containing solvent phase in a Mischabsetzerapparatur be, the raffinate from the cadmium sulfide contain the solvent phase is separated and ttelphase from the Lösungsmi the precipitated cadmium sulfide isolated. Using the process of the refined products are cadmium plated ent simply because their substance-related properties remain without influence on the precipitation and separation of cadmium sulfide.