Abstract: A method for the treatment of jarosite and other residues of the zinc and lead production industry, including the following steps: thermal treatment of the residues, at a temperature between 500° C. and 700° C., to obtain the evaporation of the imbibition water and the demolition of the jarosite molecule, resulting in the development of SO3 and in the removal of OH? groups to give additional water in the gaseous phase, and resulting in the obtainment, from the recondensation of these components, of an aqueous solution of diluted sulfuric acid, and with the simultaneous formation of a solid fraction composed of iron(III) oxide, zinc, lead, silver, copper sulphates and other minor elements; and then steps for acid leaching, a refining treatment; and purification to obtain solubilization of iron(III); separation of the solubilized iron(III) from the silica, which remains insolubilized; precipitation of iron(III) to obtain iron oxide pigment.

Abstract: A process for manufacturing physical assets for civil and/or industrial facilities on Moon, Mars and/or asteroid, as well as the kit of materials and apparatus for implementing the same. Such a kit allows in fact to implement the process of the invention by providing all materials and apparatus that will be applied on Moon, Mars and/or asteroid, thus advantageously and significantly reducing, either the costs and the volume and bulk of the materials. The process comprises the steps of enriching the regolite present in the soil in ilmenite or in iron oxides, then mixing it with aluminum powder and sending the resulting mixture to a reaction chamber for the obtention of constructive elements.

Abstract: The subject of the invention is a process for the extraction, from bauxite, from red mud resulting from the processing of bauxite, and from chemically similar materials, of products of industrial interest, like sodium, iron, gallium, aluminum, titanium and silicon, separated from each other in chloride form. The process involves the melting of the to be treated material and the blowing in the melted bath of chlorine or chlorine in situ generating compounds, and the controlled cooling of the gaseous flow exiting from the melted bath for the selective condensation of chlorides of the elements of interest. The FIGURE shows a block diagram of a particular embodiment wherein the melting is carried out in a transferred arc plasma reactor.

Abstract: A process for the production of useful materials to sustain manned space missions on Mars, as well as the kit of materials and apparatus for implementing the same, is described. Said process uses as raw feedstock only natural resources available in-situ, namely Mars atmosphere and regolith. The kit allows to implement the process of the invention by providing all materials and apparatus that will be used on the Martian soil.

Abstract: A process for the production of useful materials to sustain manned space missions on Mars, as well as the kit of materials and apparatus for implementing the same, is described. Said process uses as raw feedstock only natural resources available in-situ, namely Mars atmosphere and regolith. The kit allows to implement the process of the invention by providing all materials and apparatus that will be used on the Martian soil.

Abstract: A process for manufacturing physical assets for civil and/or industrial facilities on Moon, Mars and/or asteroid, as well as the kit of materials and apparatus for implementing the same. Such a kit allows in fact to implement the process of the invention by providing all materials and apparatus that will be applied on Moon, Mars and/or asteroid, thus advantageously and significantly reducing, either the costs and the volume and bulk of the materials. The process comprises the steps of enriching the regolite present in the soil in ilmenite or in iron oxides, then mixing it with aluminum powder and sending the resulting mixture to a reaction chamber for the obtention of constructive elements.