Coltan, short for columbite-tantalites, is a dull black metallic ore from which the elements niobium (formerly known as columbium) and tantalum are extracted. The tantalum-dominant mineral in coltan is tantalite. In appearance, coltan is a black, tar-like mineral. It is found in a variety of environments such as pegmatites (igneous rock formations), but it is most commonly associated with granite and granitic pegmatites. The ores are extracted as by-products of tin and tungsten mining in some cases. Coltan is significant because tantalum, derived from it, is used in the manufacture of tantalum capacitors, which are critical components in many electronic devices. Tantalum capacitors are valued for their high capacitance, durability, and resistance to thermal and chemical degradation. These properties make them crucial in the production of cell phones, laptops, and other high-tech electronics.Coltan ore producer location from Congo.
Uslovi besplatnog uzorka
- Nudimo samo 0,4 kg kao besplatan uzorak, bez troškova slanja.
- Uzorke šaljemo širom sveta preko DHL Express-a.
- Kupac može sam organizovati slanje.
- Uzorci preko 0,4 kg se naplaćuju.
- Po pošiljci možemo poslati do 5 kg uzoraka.
- Fitosanitarni sertifikat za uvoz vaših uzoraka je besplatan.
Uslovi porudžbine
- – The price is in range between 1500$ to 2200$ per ton (depends on the market).
- – Minimum is 2 tons that fits in 20 feet container.– We accept T/T payment with 30% advance payment and 70% against the shipping documents.
- – We accept L/C payment for an order that values +100,000 USD.
- – An agreement contract will be signed and authorized as a part of the export procedure.
