Patents Assigned to Sociedad Espanola de Carburos Metalicos, S.A.
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Patent number: 7754777Abstract: The invention relates to a method for obtaining micro- and nanodisperse systems. In particular, it relates to a method that allows said systems, such as liposomes, emulsions and suspensions, to be obtained with a size of less than 50 ?m, and preferably less than 1 ?m, and with improved stability properties over time, which includes the stages of a) Dissolving or suspending a compound C in a fluid A, to obtain a mixture AC, in the form of a solution or dispersion; b) Thermostatising said mixture AC to a temperature of between ?50° C. and 200° C.; c) Adding a fluid B to mixture AC until a pressure P is obtained; and it is characterised in that in said stage (c) formation of the solution AB occurs and because it includes, d) Reducing the pressure of solution AB to a pressure lower than or equal to 100 bars, and then e) Adding a fluid E, in which fluid A is miscible and in which compound C is partially or totally insoluble at atmospheric pressure, with said fluid E acting as a crystallisation interruption agent.Type: GrantFiled: January 3, 2006Date of Patent: July 13, 2010Assignee: Sociedad Espanola De Carburos Metalicos, S.A.Inventors: Nora Ventosa, Jaume Veciana, Santiago Sala, Mary Cano
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Publication number: 20070259971Abstract: The invention relates to a method for obtaining micro- and nanodisperse systems. In particular, it relates to a method that allows said systems, such as liposomes, emulsions and suspensions, to be obtained with a size of less than 50 ?m, and preferably less than 1 ?m, and with improved stability properties over time, which includes the stages of a) Dissolving or suspending a compound C in a fluid A, to obtain a mixture AC, in the form of a solution or dispersion; b) Thermostatising said mixture AC to a temperature of between ?50° C. and 200° C.; c) Adding a fluid B to mixture AC until a pressure P is obtained; and it is characterised in that in said stage (c) formation of the solution AB occurs and because it includes, d) Reducing the pressure of solution AB to a pressure lower than or equal to 100 bars, and then e) Adding a fluid E, in which fluid A is miscible and in which compound C is partially or totally insoluble at atmospheric pressure, with said fluid E acting as a crystallisation interruption agent.Type: ApplicationFiled: January 3, 2006Publication date: November 8, 2007Applicant: SOCIEDAD ESPAÑOLA DE CARBUROS METALICOS, S.A.Inventors: Nora Ventosa, Jame Veciana, Santiago Sala, Mary Cano
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Patent number: 7291295Abstract: A method for precipitation of finely divided solid particles comprising a) Dissolving a compound C in a fluid A to provide a solution A; b) Thermostatization of said solution A to a temperature ranging between ?50°0 C. and 200° C.; c) Adding a fluid B to said solution A until a pressure P is obtained, characterized in that said fluid B at a pressure P is miscible with said solution A and acts as a co-solvent to form a solution AB; d) Adding an inert gas to solution AB so as to maintain the pressure P; and e) Reducing the pressure of said solution AB so as to produce the precipitation of said compound C, and wherein the method permits particles of average size less than 20 ?m, with a narrow distribution ranging between 1 and 100 ?m, from a solution, and not a mix, that contains the compound C precipitated.Type: GrantFiled: August 23, 2001Date of Patent: November 6, 2007Assignee: Sociedad Espanola de Carburos Metalicos, S.A.Inventors: Nora Ventosa Rull, Jaume Veciana Miro, Concepción Rovira Angulo, Santiago Sala Verges
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Publication number: 20070202037Abstract: The present invention provides a new method for obtaining hydrogen gas that comprises the stages of providing at least one aluminium alloy; providing at least one hydride of general formula (I), where X is selected between B and Al; Y is selected from among Li, Na, K, Mg, Ca and Al; and n is an integer number from 1 to 3; and providing an aqueous medium; so that the reaction between said aluminium alloy with said hydride in said aqueous medium is carried out at a temperature between 4 and 300° C. to produce hydrogen gas and other reaction products with good yields.Type: ApplicationFiled: February 1, 2007Publication date: August 30, 2007Applicant: Sociedad Espanola de Carburos Metalicos, S.A.Inventors: Timothy C. Golden, Lluis Soler Turu, Jorge Macanas De Benito, Maria Munoz Tapia, Juan Casado Jimenez
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Publication number: 20060052953Abstract: Analyzing system for the detection of reducing and oxidizing gases in a carrier gas, wherein the detection means are sensors based on semiconductor-type metal oxides that work in the absence of oxygen. The system includes means for connecting to a chamber which contains the sensors, and moreover in that the processing and control include a system of real-time recognition of the gases, which provides a diagram in which the measurements taken on the carrier gas are situated and identified. The analyzing system permits analysis of the gas in real time.Type: ApplicationFiled: December 23, 2003Publication date: March 9, 2006Applicant: Sociedad Espanola De Carburos Metalicos, S.A.Inventors: Xavier Vilanova, Xavier Correig, Eduard Llobet, Jesus Brezmes, Raul Calavia, Xavier Sanchez
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Patent number: 6224744Abstract: The process comprises the oxidation, in an electrolytic cell provided with at least one anodes of pollutants which contaminate wastewaters, and is characterized in that oxygen is diffused in the electrolytic cell cathode or cathodes subjected to a voltage lower than 100 V in order to reduce said gas to a dissolution oxidizing species selected among hydrogen peroxide or hydroxyl and/or peroxydril (HO2·) radicals. The equipment for implementing said process comprises an elecrolytic cell continuously supplied and provided with an anode (1) and two oxygen diffusion cathodes (2) and is sealed on either side with a frame (3), said frames and cathodes delimiting the compartments (4) which are supplied with oxygen gas and/or gas mixtures containing oxygen through inlets (6); similarly, the cathode and the anode delimit the compartments (5) through which circulates the contaminated water entering through the inlet (5) and coming out through outlets (8).Type: GrantFiled: October 14, 1997Date of Patent: May 1, 2001Assignee: Sociedad Espanola de Carburos Metalicos, S.A.Inventors: Juan Casado Gimenez, Enrique Brillas Coso, Rosa Maria Bastida Bonany, Michel Vandermeiren
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Patent number: 6068756Abstract: Process for the reduction of halogenated hydrocarbons and for obtaining their derivatives in an electrolytic cell which includes at least one cathode, at least one anode and a solution. A hydrogen-permeable membrane is arranged in the at least one anode such that the at least one anode constitutes a hydrogen-diffusion anode, and hydrogen or a hydrogen-containing gas is supplied to the hydrogen-permeable membrane. An electrolytic cell for the reduction of halogenated hydrocarbons includes at least one high overpotential cathode containing lead, cadmium, graphite, copper and/or tin, at least one hydrogen-diffusion anode containing palladium and a solution.Type: GrantFiled: November 4, 1997Date of Patent: May 30, 2000Assignee: Sociedad Espanola de Carburos Metalicos S.A.Inventors: Juan Casado Gimenez, Pere-Lluis Cabot Julia