DETERMINATION OF TRACE RHENIUM IN MOLYBDENITE BY SPECTRO- PHOTOMETRIC METHOD
Cong Shoujie et al
Abstract A new method of dissolving molybdenite by nitric acid is presented, in this paper, after separation the large part of interference elements:Mo、Mn、Ti、Ca、Mg and Cr, a thiocyanate—ether—mercury extraction is used to remove 1 he last amount of Mo, which enters the solution with rhenium. A spectro—photometric detetrmination of rhenium is taken by thiocyanate—ether extraction.
This method can be used to determine the trace rhenium in molybdenite and copper concentrate. The procedure is rather simple practical. The error is ±10%.
Key words Spectro-phctometric; Extaction; Trace rhenium