PROCEDIMENTO PER L'ARRICCHIMENTO DEL TENORE IN ZEOLITI DI SOTTOPRODOTTI DELLE CAVE DI BLOCCHETTI DI "TUFO LITOIDE"

PROCEDIMENTO PER L'ARRICCHIMENTO DEL TENORE IN ZEOLITI DI SOTTOPRODOTTI DELLE CAVE DI BLOCCHETTI DI "TUFO LITOIDE"

Scrap, waste and sawings from "tufa stone" quarries are rich in zeolites (cabasite, phillipsite +/- analcime). A 1st concentrate of zeolites is obtained from the various types of waste, removing black slags and (inert) decimetre-sized larva inclusions on the basis of their dark color. A se...

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1. Verfasser: DI SABATINO BRUNO
Format: Patent
Sprache:ita
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Zusammenfassung:Scrap, waste and sawings from "tufa stone" quarries are rich in zeolites (cabasite, phillipsite +/- analcime). A 1st concentrate of zeolites is obtained from the various types of waste, removing black slags and (inert) decimetre-sized larva inclusions on the basis of their dark color. A second concentrate is obtained by differential grinding (+/- abrasion). A good concentration of (very friable) zeolites which reaches an optimum in the fractions < 100 μ is obtained in the sand fractions. Zeolites are cation exchangers, molecular sieves, antacids, etc., and are used as such for the purification of water, stockfarming slurries, feedstuffs, natural fertilizers and many other uses.