Products

Mineral

We, Rohas International, as one of the members of iTRi,
declare to comply all the legal agreements,
international standards and the national laws

Ta

  • - Tantalum concentrate
  • - Tantalum Pentoxide
  • - Tantalum Metal

One of the main uses of tantalum is in the production of electronic components. An oxide layer which forms on the surface of tantalum can act as an insulating (dielectric) layer.

Tantalum causes no immune response in mammals, so has been found for wide use in the making of surgical implants.

It is very resistant against corrosion and it makes it to be utilized for corrosive material handling equipment. Also it can be used as electrodes for neon lights, AC/DC rectifiers and glass for special lenses.

Tantalum alloy can be extremely stronger than any other alloys, so it is used for turbine blades, rocket nozzles and nose caps for supersonic aircraft.

Rohas International is a full member of EICC, And we have tantalite separation facilities in Burundi, Rwanda and Congo areas of Africa. We proudly comply EICC Code of Ethics within.

Rohas Interantional is also available to supply Columbite from Brazil, Bolivia.

We also have ideas for creating sustainable and ethical deals that are the source of a stable supply of tantalum products.

Ta

Nb

  • - Niobium Concentrate
  • - Ferro-Niobium

Niobium is used in alloys including stainless steel. It improves the strength, especially at the low temperature. Also it can be utilize in jet engine, rocket, beam for construction.

It also has superconducting properties, so that we can adapt in superconducting magnet for particle accelerators, MRI scanner and NMR equipment.

Niobium oxide compounds can be added to glass making process to increase the refractive index, which makes corrective glasses to be made with thinner lenses.

Rohas International is a full member of EICC, and we have tantalite separation facilities in Burundi, Rwanda and Congo areas of Africa.

We proudly comply EICC Code of Ethics within. We also have ideas for creating sustainable and ethical deals that are the source of a stable supply of Niobium products.

Cu

Sn

  • - Tin Concentrate

It takes a high polish and is used to coat other metals to prevent corrosion, such as in tin cans which are made of tin-coated steel. Tin Alloys are widely used in many industry, such as soft solder, pewter, bronze and phosphor bronze. A niobium-tin alloy is used for superconducting magnets

Most window glass is made by floating molten glass on molten tin to produce a flat surface. Tin salts sprayed onto glass are used to produce electrically conductive coatings.

The most important reason for using the tin salt is tin(II) chloride, as it works as a reducing agent and a mordant for dyeing calico and silk. Tin(IV) oxide is used for ceramics and gas sensors. Zinc stannite (Zn2SnO4) is a fire-retardant that can be used in plastics.

Rohas International is a full member of EICC, And we have Tin separation facilities in Burundi, Rwanda and Congo areas of Africa. And we strongly comply the EICC Code of Ethics. It is also available to supply Tin from Brazil, Bolivia.

We also have ideas for creating sustainable and ethical deals that are the source of a stable supply of Tin products.

Sn

W

  • - Tungsten ore

Tungsten has the highest melting point among all metals and can be alloyed with other metals to strengthening proposal. Tungsten and regarding alloys are used in many high-temperature applications, such as arc-welding electrodes and heating elements in high-temperature furnaces.

Tungsten carbide is immensely hard and essential material at metal-working, mining and petroleum industry. It is made by mixing tungsten powder and carbon powder and heating up to 2200°C. It can make excellent cutting and drilling tools including a new ‘painless’ dental drill which spins at ultra-high speeds.

Rohas International is a full member of EICC, And we have Tin separation facilities in Burundi, Rwanda and Congo areas of Africa. And we strongly comply the EICC Code of Ethics.

Rohas Interantional is also available to supply Wolframite, Scheelite from Brazil, Bolivia.

We also have ideas for creating sustainable and ethical deals that are the source of a stable supply of Wolframite and Scheelite products.

W