A stepwise carbochlorination-chemical vapor transport(SC-CVT) technique is proposed for separation of thorium from mixed bastnaesite-monazite concentrate.

以氟-独居石混合稀土为研究对象,采用分步选择性热氯化-化学气相传输应(SC-CVT),实现钍与其它稀土元素的分离。

Neodymium is a bright, silvery rare-earth metal element, found in monazite and bastnaesite and used for coloring glass and for doping some glass lasers.

1据查，钕是“一种亮银色的稀土金属元素，独在石和氟锑中存在，用给玻璃染色和给一些玻光器上色。