UN METODO PARA TRATAR POTASA
    11.
    发明专利

    公开(公告)号:AR065612A1

    公开(公告)日:2009-06-17

    申请号:ARP080100919

    申请日:2008-03-06

    Abstract: Se describe un método para separar cloruro de potasio y cloruro de sodio a partir de una solucion calentada de estas sales, como por ejemplo una solucion obtenida a partir de mineral de potasa, para recuperar cloruro de potasio del yacimiento. Elmétodo incluye una combinacion de los siguientes pasos: (a) extraer agua de una solucion calentada, que contiene cloruro de potasio y cloruro de sodio, utilizando un sistema de membrana; y (b) enfriar posteriormente la solucion descargada delsistema de membrana, por o cual los pasos (a) y (b) hacen posible recuperar selectivamente cloruro de potasio y cloruro de sodio a partir de la solucion.

    MATERIAL TRITURADO
    13.
    发明专利

    公开(公告)号:PE09232006A1

    公开(公告)日:2006-09-04

    申请号:PE0012452005

    申请日:2005-10-24

    CPC classification number: B02C4/02 B02C4/28

    Abstract: SE REFIRE A UN METODO Y A UN DISPOSITIVO PARA TRITURAR EL MATERIAL EXTRAIDO DE UNA MINA SUBTERRANEA. DICHO DISPOSITIVO INCLUYE UN PAR DE RODILLOS TRITURADORES ASCENDENTES QUE DETERMINAN UNA LINEA DE CONTACTO ENTRE ELLOS PARA RECIBIR Y TRITURAR EL MATERIAL DE ALIMENTACION CON UNA PRIMERA GAMA DE TAMANO DE PARTICULAS Y PARA IMPULSAR EL MATERIAL TRITURADO DESDE LA LINEA DE CONTACTO, UN PAR DE RODILLOS TRITURADORES DESCENDENTES QUE TIENEN UNA LINEA DE CONTACTO ENTRE ELLOS PARA RECIBIR EL MATERIAL TRITURADO DESDE EL PAR DE RODILLOS DESCENDENTES Y ADEMAS TRITURAR EL MATERIAL DE ALIMENTACION CON UNA SEGUNDA GAMA DE TAMANO DE PARTICULAS, Y UN CONDUCTO DE TRANSFERENCIA QUE SE EXTIENDE ENTRE EL PAR DE RODILLOS ASCENDENTES Y DESCENDENTES, YA QUE DURANTE EL USO DEL DISPOSITIVO, EL MATERIAL TRITURADO QUE PROVIENE DESDE EL PAR DE RODILLOS ASCENDENTES FORMA UNA ALIMENTACION DE MATERIAL PARA EL PAR DE RODILLOS DESCENDENTES CUANDO SE DESPLAZA A TRAVES DEL CONDUCTO DE TRANSFERENCIA HACIA EL PAR DE RODILLOS DESCENDENTES

    TREATMENT OF WASTE
    15.
    发明专利

    公开(公告)号:CA2139220C

    公开(公告)日:2005-10-04

    申请号:CA2139220

    申请日:1993-06-29

    Abstract: A method of treating inorganic solid waste in a bath of molten metal contain ed in a vessel (3) which has a space above the bath and a waste gas outlet (11) is disclosed. The method comprises injectin g waste into the bath to form a primary reaction zone (13) in which there are reactions between the waste and the bath or in which the waste undergoes a change of phase to convert the waste into more readily recoverable or disposable products. The method furth er comprises injecting oxygen-containing gas towards the surface of the bath to form a secondary reaction zone (17) in a section of the space above the bath through which oxidisable products released from the primary reaction zone (13) flow to rea ch the waste gas outlet (11) in the vessel (3) and in which the oxidisable products are oxidised and the heat released by such oxidation is transferred into the bath.

    17.
    发明专利
    未知

    公开(公告)号:BR0004478A

    公开(公告)日:2001-04-10

    申请号:BR0004478

    申请日:2000-09-27

    Abstract: A direct smelting process and a fixed, ie non-rotatable, metallurgical vessel for producing metal from a metalliferous feed material is disclosed. The process is a molten bath-based process which includes injecting solid feed materials with a carrier gas into the molten bath via one or more downwardly extending lance/tuyere (11) and causing gas flow from the molten bath at a flow rate of at least 0.30 Nm /s/m at the interface between the metal layer (15) and the slag layer (16) of the molten bath (under quiescent conditions).

    19.
    发明专利
    未知

    公开(公告)号:BR9604837A

    公开(公告)日:1998-06-16

    申请号:BR9604837

    申请日:1996-04-04

    Abstract: A method and an apparatus for producing metals and metal alloys from metal oxides in a metallurgical vessel containing a molten bath having a metal layer and a slag layer is disclosed. The method is characterized by injecting a carrier gas and a solid carbonaceous material and/or metal oxides into the molten bath from a side of the vessel that is in contact with the molten bath or from above the molten bath so that the solids penetrate the molten bath and cause molten metal to be projected into the gas space above the molten bath to form a transition zone. The method is also characterized by injecting an oxygen-containing gas into the gas space to post-combust reaction gases released from the molten bath into the transition zone.

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