Study on Industrialization of Roasting Mixed Rare Earth Concentrate with Concentrated Sulfuric Acid at Low Temperature

The method of resolving rare earth concentrate by roasting with concentrated sulfuric acid at low temperature in Baotou is one of the development directions for resolving rare earth concentrate.In the paper,several methods are analyzed and compared.Finally,it is proposed that the possible way for industrialization of resolving rare earth concentrate by roasting with concentrated sulfuric acid at low temperature in Baotou is the roasting method with multistage series of concentrated sulfuric acid.