Welcome to the factory

Get Price
  1. Home
  2.   >>   Coltan Mining In Africa

Coltan Mining In Africa

1coltan mining and ethics last updated january 21 2020. coltan is the colloquial name for the mineral columbite-tantalum col-tan it is sometimes incorrectly used as shorthand for tantalite a metallic ore from which the very similar elements niobium also known as columbium and tantalum are extracted. in the early 21st century coltan mining was associated with human rights violations.

Quote Now Read More

Hot Sale Products

Our products sell well all over the world, and have advanced technology in the field of crushing sand grinding powder.