Process for producing a phosphate of the lanthanoids, and phosphate produced thereby

摘要

A process for producing a phosphate of the lanthanoids is described. The process is based on a two-jet precipitation, starting from separate reservoirs of a rare earth salt solution and a phosphate solution which are introduced simultaneously by separate feedlines into an aqueous acidified initial charge with stirring at a pH of 0<=pH<=1. After the solutions are added, the pH is raised to a pH of >2 to complete the phosphate precipitation.