Chemically/morphologically converting asbestos

Process and appts. for chemically/morphologically converting asbestos and building materials contg. asbestos are claimed. The novelty is that the asbestos or asbestos-contg. materials are treated in a system free from organic components with aq. colloidal dispersions of amorphous SiO2 consisting of...

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Bibliographische Detailangaben
Hauptverfasser:	FORKEL, KLAUS., 96528 SCHALKAU, DE, UNGER, BRITA., 12459 BERLIN, DE, WIHSMANN, FRED GUSTAV, DR., 12487 BERLIN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE DISPOSAL OF SOLID WASTE FIRE-FIGHTING HUMAN NECESSITIES INORGANIC CHEMISTRY LIFE-SAVING LIME, MAGNESIA METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS RECLAMATION OF CONTAMINED SOIL SOIL REFRACTORIES SLAG TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Process and appts. for chemically/morphologically converting asbestos and building materials contg. asbestos are claimed. The novelty is that the asbestos or asbestos-contg. materials are treated in a system free from organic components with aq. colloidal dispersions of amorphous SiO2 consisting of non-crosslinked spherical individual particles having OH gps., with liq. consistency and free from sedimentable components. The particle size of the dispersed particles is not more than 50 nm, pref. in range of 7-30 nm. The products formed by the above process are also claimed, in which asbestos fibres and asbestos-contg. materials are penetrated by Si cpds..