Zeolitite is a raw material of vulcanic origin in which there are substantial contents ( ≥50%) of zeolites. These minerals are hydrated aluminosilicates of alkali and alkaline earth metals with specific properties like the cation-exchange capacity and adsorption.
Since its foundation Italiana Zeoliti focused the attention on volcanic tuffs linked to the activity of Phlegraean Fields in Naples:
- Neapolitan Yellow Tuff (NYT)
- Yellow Facies of Ignimbrite (LYT)
Both contain a quantity of Phillipsite and Chabazite equal to or greater than 50% and can be used in animal feed as additives belonging to the functional groups of binding and anti-caking agents because the levels of undesirable substances (ex. Pb, Cd and Dioxins) are compliant to the provisions of European regulations 2002/32/EC and subsequent amendments, 277/2012 and 744/2012.
Phillipsite and Chabazite in the vulcanic tuffs of region Campania are rich in Potassium as a consequence of the chemical composition of the volcanic precursor.
The exchange capacity of these zeolites is around 3,5 ÷ 3,6 meq/gr making them suitable for many technological applications:
- Zootechnics to improve animals health;
- Agriculture, as soil amendments and to purify waste water, sewage, etc.