Niobium was the first of these two elements to be discovered. In 1801, Charles Hatchett (1765-1847), an English chemist, analysed a specimen of an unknown mineral from the collection of
Tantalum and Niobium: Deposits, Resources, Exploration Methods and Market (Simandl et al, 2018) "Much ado about tantalum" by Richard Burt (2016) British Geological Survey (BGS) profile on niobium and tantalum
A visual guide to artisanal and small-scale mining (ASM) of tantalite
Tantalum (Ta)
All, Miners
In 2013/2014 Ulric Schwela, T.I.C.’s then Technical Officer, visited ASM mine sites in Burundi, DRC and Rwanda. These photographs show typical tantalite ASM processes, although in reality operations vary considerably.
Tantalum capacitors offer excellent stability in harsh conditions, high energy and power volumetric efficiency and low parametric shift with lifetime, properties which make them ideal in several applications for the
Superalloys are high-performance alloys known for their high melting temperatures, strength, and resistance to wear in corrosive and oxidising environments. They are primarily used in the hottest parts of gas
Tantalum is widely used in electronic capacitors for smartphones, automotive systems, and wind turbines. It also enhances cutting tools, SAW filters, optical lenses, chemical process equipment, and medical devices like
The extraction and refining of tantalum, including its separation from niobium in various tantalum-containing mineral concentrates, is generally accomplished by treating the ores with a mixture of hydrofluoric and sulfuric
Extraction or production of tantalum raw materials is widespread, encompassing primary industrial mining, artisanal mining, as a secondary mineral, or as a by-product. Brazil is currently the major producer, with
To calculate the value of a tantalum mineral, the main principle is that only the quantity of Ta₂O₅ contained is paid for, not the whole bulk of material. Basically, the
Niobium and tantalum raw materials can contain low levels of the radioactive elements thorium (Th) and uranium (U), leading to them being classified as naturally occurring radioactive materials (NORM). International
