Cerium and Cerium Compounds

Abstract Cerium, Ce, at. no. 58, is the most abundant member of the series of elements known as the lanthanides.There are few principal lanthanide deposits, and there are no minerals that are sources for cerium alone. Bastnasite and monazite are the two minerals that supply the world's cerium. Production of cerium derivatives begin with ore benefication and production of a mineral concentrate. Depending on the mineral market, there is either direct production of a cerium‐rich material or separation of the mixed lanthanide precursor into individual lanthanide compounds. Moderately pure cerium compounds can be made from rare‐earth chloride through oxidation. In bulk form, cerium is a reactive metal. In general lanthanides, including cerium, have a low toxicity rating. Uses include metallurgical applications, glass and ceramics, catalysts, emission control, phosphors, and electronics.