TRATAMIENTO DE SUSPENSIONES ACUOSAS MINERALES CON FLOCULANTES POLIMERICOS

• Main Authors: MOHLER, Carol Elaine, WITHAM, Cole A, HITT, James E, HANSEN, Matthew J, POINDEXTER, Michael K
• Format: Patent
• Language: Spanish
• Published: 23.03.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Se refiere a un procedimiento de deshitracion de una suspension mineral acuosa que comprende introducir en la suspension un sistema floculante que comprende un poli (oxido de etileno) copolimero, en particular un copolimero de oxido de etileno y uno o mas monomero hidrofobo funcionalizado epoxi o glicidil eter. Dichos poli (oxido de etileno) copolimeros son utiles para el tratamiento de suspensiones de material particulado, especialmente los residuos de soluciones acuosas minerales. Es particularmente adecuada para el tratamiento de soluciones acuosas y otros materiales de desecho resultantes del procesamiento de minerales, en particular, el tratamiento de los residuos de las arenas petroliferas The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a poly(ethylene oxide) copolymer, in particular a copolymer of ethylene oxide and one or more epoxy or glycidyl ether functionalized hydrophobic monomer. Said poly(ethylene oxide) copolymers are useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.