Metal rhenium assay [Rhenium ore detection]

Testing/Consultation (Wang Li)
Rhenium is a truly
rare element
. Its content in the earth's crust is smaller than that of all rare earth elements, only larger than those of protactinium and radium. In addition, it does not form fixed minerals and is usually associated with other metals. This makes it the last element found in nature. Rhenium, as a member of the manganese
subgroup
, had predicted its existence as early as when Mendeleev established the
periodic system of elements
and called it Another member of this family that was not discovered at the time was called (manganese-like) for (submanganese). Later, Moseley determined that the atomic numbers of these two elements were and respectively. Because an unknown element can often be obtained from It can be found in minerals with elements similar to its properties, so scientists have been working hard to find these two elements from
manganese ore
, platinum ore and columbite (minerals of tantalum and niobium). But It was not until 2000 that Nodak, Tucker and Berg of Germany used spectroscopy to discover the element with the name and symbol from a large number of
minerals
and the concentrated products of rocks.