在原子能事业中,由于种种原因,以前利用钍是不多的,钍矿的勘探工作也未积极进行。可是,世界上钍矿的分布却很广,已经探明的储量和远景储量约达400万吨,可与铀矿匹敌。所以,钍不存在资源问题。钍的矿床主要是独居石,掘进和开采都较容易。与铀矿不同,钍矿的二氧化钍品位较高,达6％—10％,所以钍的价格较便宜。 In the atomic energy industry, due to various reasons, the use of antimony in the past has been limited, and exploration work on antimony ore has not been actively carried out. However, the distribution of antimony ore in the world is very wide, with proven reserves and prospective reserves of approximately 4 million tons, which is comparable to uranium ore. Therefore, there is no problem with resources. The vast deposits are mainly monazite, and it is easier to excavate and mine. Unlike uranium ore, the grade of antimony dioxide in antimony ore is relatively high, reaching 6% to 10%, so the price of antimony is cheaper.