TREATMENT OF TAILINGS WITH DEIONIZED SILICATE SOLUTIONS

A process for treating a tailings stream comprises (a) contacting a deionized silicate solution with a tailings stream whereby the solids are entrapped within a gel produced from the silicate solution; and (b) allowing the gel to strengthen and solidify. The process may further comprise spreading th...

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Bibliographische Detailangaben
Hauptverfasser:	KRISTJANSDOTTIR, SIGRIDUR, SOLEY, MOFFETT, ROBERT, HARVEY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE CRACKING HYDROCARBON OILS DISPOSAL OF SOLID WASTE FUELS INORGANIC CHEMISTRY LIME, MAGNESIA LUBRICANTS METALLURGY MINERAL WAXES NON-METALLIC ELEMENTS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECLAMATION OF CONTAMINED SOIL SOIL RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA REFRACTORIES SLAG TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF NATURAL STONE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	A process for treating a tailings stream comprises (a) contacting a deionized silicate solution with a tailings stream whereby the solids are entrapped within a gel produced from the silicate solution; and (b) allowing the gel to strengthen and solidify. The process may further comprise spreading the gel produced in step (a) over a surface. The present invention is particularly useful to treat tailings streams produced in processes to extract bitumen from oil sands ores. Cette invention concerne un procédé pour traiter un flux de queues, ledit procédé consistant à (a) mettre une solution de silicate désionisée en contact avec un flux de queues pour que les solides soient piégés dans un gel formé par la solution de silicate ; et (b) laisser le gel se renforcer et se solidifier. Le procédé peut en outre comprendre une étape consistant à étaler le gel formé à l'étape (a) sur une surface. Cette invention est particulièrement utile pour traiter les flux de queues générés dans les procédés destinés à extraire le bitume de minerais à base de sables bitumineux.