What options do I have for highly corrosive chemicals, e.g. Acids?

Traditionally industry has used exotic alloys, such as Zirconium / Titanium / Hastelloy C / Hastelloy B / Tantalum when handling corrosive chemical such as:

  • Hydrochloric Acid
  • Sulphuric Acid
  • Nitric Acid
  • Hydrobromic Acid
  • Hydrogen Iodide
  • Phosphoric Acid
  • Perchloric Acid
  • Hydrogen sulfide
  • Formic Acid
  • Acetic Acid

The issues with such exotic alloys, has not just been performance (i.e. compatibility), but also availability and cost.

Traditionally the alternatives to using exotic alloys have been coatings such as PTFE, which has temperature limitations and the associated problems with being a coating rather than a bonding

So is there a solution, other than using Zirconium / Titanium / Hastelloy C / Hastelloy B / Tantalum?

Yes…

Use an element such as Tantalum (no 73) which is a refractory metal, is highly corrosion resistant, with an unmatched performance in acids and is biologically inert.  To avoid the costs & lead time associated with this type of element, use a product which has been subject to a vapour deposition in a vacuum chamber at high temperature, thus forming a metallurgical bond of Tantalum within and on the surface area

Does such a process exist?

Yes…

Tantaline is a product invented in 1989 and first tested on Hydrochloric Acid in 1993.  Some of these original components are still in use today

Tantaline is a bonding and is far superior to a coating:

Tantaline

Tantaline is suitable for many industries, including:

  • Chemical and Agro-chemical
  • Petrochemical
  • Energy
  • Mining and materials
  • Engineering
  • Laboratory services
  • Pharma
  • Food
  • Water treatment

Tantaline is more cost-effective than traditional exotic alloys and is normally available at drastically reduced lead-times versus other technologies:

Tantaline process

Products for which Tantaline may be used include:

  • Heat Exchangers
  • Instruments
  • Pumps
  • Safety relief
  • Valves
  • Reactors
  • and many more

If you require further technical details of the Tantaline process please send us a product enquiry or call Ire: +353 21 4510900 or UK +44 1633 877505

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