Inert Material, A Production Method Thereof From Waste Materials And Industrial Uses Thereof

摘要

The present invention concerns a material obtained by processing fragmented waste, waste material containing silica, and possibly ashes of flue-gas desulphurisation plants (FGD), coal ashes (CA), water and alcohols. The invention also concerns the method of preparing the material and the uses of such material in construction (also for manufacturing tiles) and in other fields in which it can be introduced as an inert, like for example in materials such as plastics, rubbers, polyurethanes (for example for increasing fire proof) etc., and for its absorbing properties like for example of dyes and soaps, as a filter, for example for waste water in water treatment plants.

主权项

1. Inert and/or absorbent material obtained by processing waste material containing heavy metals (A) and/or organic polluting substances, waste material containing silica (D) and possibly ashes from flue-gas desulphurisation (FGD) plants (B), coal ashes (CA)(C), water and alcohols (E)
comprising by weight based on the total weight of the material: from 1% to 80% of amorphous material, from 1% to 10% of crystalline silica, comprising quartz and cristobalite from 0% to 30% of calcium sulphite or sulphate (possibly hydrates), from 0% to 60% of calcium carbonate, from 0% to 20% of silicates, the following metals, in the following concentrations: Ti<1%, V<1%, Cr<1%, Mn<1%, Fe<5%, Ni<1%, Cu<1%, Zn<1%, As<0.5%, Se<1%, Br<1%, Rb<1%, Pb<0.5% by weight over the total weight of the material.