Service Communautaire d'Information sur la Recherche et le Développement - CORDIS


ZEOGYP-BOARD Résumé de rapport

Project ID: G1RD-CT-2001-03003
Financé au titre de: FP5-GROWTH
Pays: Italy

Mapping - characterisation of Italian natural zeolite

Mapping of Italian zeolite deposits (VERDI s.r.l.) and full characterisation of raw materials (VERDI s.r.l., CSTB)

(1)Review of the literature data to assess the more appropriate zeolite type and the methods to remove undesirable impurities
(2)Identification of the main zeolite deposits in Italy and evaluation of the mining capacity, quality and compositional uniformity of the zeolite bearing rocks from the different quarries.

A Geological Survey and Mapping was performed on the SE area of the zeolitic body of Piandirena, and confirmed the estimation of the geological resevoir of at least 9.000.000 m3 of zeolite rich tuff. The zeolite bearing lithostratigraphic unit, corresponding to the "Sorano Formation" extends SE far beyond the mapped area. A rough estimation of potential resource is in the order of about 50Mt.

(3) Collection of about 12-15 representative samples (50Kg apiece) from different selected quarries.
(4) Characterisation of each sample with qualitative and quantitative mineralogical analysis using the X-ray Rietveld method, chemical composition by XRF and TG analysis and cation exchange capacity using the 1N NH4 and 1N NaCl solutions, and comparison of the results with those obtained for the Greek zeolite rich rocks.
(5) Chemical composition and morphological characterisation of the zeolite crystals by electron microprobe analysis (EPMA) and scanning electron microscopy (SEM), respectively;
(6) Determination of relevant physical properties (DTA, DTG, TG, cation exchange capacity) of the samples;
(7) In order to define the optimum conditions of firing of the mineral, quantitative phase analysis on the fired samples (yield of reaction) can be accomplished using the Rietveld-RIR methods in our laboratories.
(8) Supply of zeolite samples (about 20Kg) in two different granulometries: raw material < 1cm and sieved material < 1mm.

Informations connexes


Pietro AZZOLINI, (Technical Director)
Tél.: +39-0–5-22683899
Fax: +39-0–5-22683086