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    62.
    发明专利
    未知

    公开(公告)号：DE59604005D1

    公开(公告)日：2000-02-03

    申请号：DE59604005

    申请日：1996-04-23

    Applicant: BASF AG

    Inventor： SCHMID RAIMUND ,  MRONGA NORBERT ,  ADEL JOERG

    IPC: C09C1/64 ,  A61K8/11 ,  A61Q1/02 ,  B44F1/12 ,  C03C1/04 ,  C03C4/02 ,  C04B33/14 ,  C04B41/00 ,  C04B41/86 ,  C08K9/02 ,  C09C1/00 ,  C09C1/62 ,  C09C3/06 ,  C09D5/36 ,  C09D7/12 ,  C09D11/00 ,  C09D11/037 ,  C09D17/00 ,  A61K7/00

    Abstract: Goniochromatic lustrous pigments (G) based on metallic diskette substrates are coated with: (A) (hydrated) silica and/or (hydrated) alumina layer; (B) aluminium metallic layer allowing at least some visible light to pass through it; and (C) opt. outer layer of colourless or selectively absorbent metal oxide and/or one contg. phosphate, chromate and/or vanadate. Also claimed are the following : (i) lustrous pigment mixts. comprising (G) and silicate diskettes coated with a colourless or selectively absorbent metal oxide layer (A`), metallic aluminium layer (B`) through which visible light can pass and opt. outer layer (C`) of colourless or selectively absorbent metal oxide and/or one contg. phosphate, chromate and/or vanadate; (ii) prepn. of (G); and (iii) prepn. of aluminium-coated pigment diskettes by reacting volatile gaseous alkyl aluminium cpds. or aluminium hydride trialkylamine adducts in an inert atmos. in the presence of the diskettes. (C) contains (hydrated) SiO2, (hydrated) Al2O3, TiO2, ZrO2, Fe2O3 and / or Cr2O3. The substrates are coated only with (A) and (B). The metallic substrates comprise Al and are made by standard extrusion and grinding techniques. They may be coated with a ferromagnetic layer and/or passivated. AlH3 tri(1-4C alkyl)amine adducts or alkyl aluminium cpds. of the following formula are used to make Al-coated pigment plates: R aAlXb, where R = 1-4C alkyl, X = H or halogen; a = 1-3, and b = 0 - 2.

    65.
    发明专利
    未知

    公开(公告)号：DE59405045D1

    公开(公告)日：1998-02-19

    申请号：DE59405045

    申请日：1994-08-25

    Applicant: BASF AG

    Inventor： ZIEGLER BERND ,  MRONGA NORBERT ,  TEICH FRIEDHELM ,  HERRMANN GUENTER

    IPC: B01J13/00 ,  B01J21/08 ,  C01B33/158 ,  C01B33/16 ,  C04B30/00 ,  C08K3/00 ,  C08K3/36 ,  C08K3/40 ,  C08L21/00

    Abstract: PCT No. PCT/EP94/02822 Sec. 371 Date Feb. 29, 1996 Sec. 102(e) Date Feb. 29, 1996 PCT Filed Aug. 25, 1994 PCT Pub. No. WO95/06617 PCT Pub. Date Mar. 9, 1995Hydrophobic silica aerogels obtainable by reacting a waterglass solution with an acid at a pH of from 7.5 to 11, substantially removing ionic constituents from the resulting silica hydrogels by washing with water or dilute aqueous solutions of inorganic bases, while the pH of the hydrogels is kept in the range from 7.5 to 11, displacing the aqueous phase contained in the hydrogel by an alcohol, and subsequent supercritical drying of the resulting alcogels.

    68.
    发明专利
    未知

    公开(公告)号：FI954962A

    公开(公告)日：1996-04-22

    申请号：FI954962

    申请日：1995-10-18

    Applicant: BASF AG

    Inventor： SCHMID RAIMUND ,  MRONGA NORBERT

    IPC: C09C1/62 ,  A61K8/11 ,  A61Q1/02 ,  C03C4/02 ,  C04B33/14 ,  C08K9/02 ,  C09C1/00 ,  C09C3/00 ,  C09C3/12 ,  C09D5/36 ,  C09D7/12 ,  C09C1/64

    Abstract: A lustrous pigment consisting of a no. of coatings on a metallic platelet substrate has the following coatings: (A) a colourless coating of Refractive Index (RI) n = 1.8 or below; (B) a selectively - absorbing coating of RI n = 2.0 or above; and opt. also (C) an outer colourless or selectively - absorbing coating differing from the underlying (B) coating. Also claimed is prodn. of the pigment by successively coating the substrate with the coatings by gas phase decompsn. of volatile metal cpds. in presence of O2 and/or steam or by hydrolytic decompsn. of organometallic cpds.

    PROCEDIMIENTO Y DISPOSITIVO PARA LA RECUPERACION DE MINERALES NO MAGNETICOS
    70.
    发明专利
    PROCEDIMIENTO Y DISPOSITIVO PARA LA RECUPERACION DE MINERALES NO MAGNETICOS 未知

    公开(公告)号：PE20100036A1

    公开(公告)日：2010-02-20

    申请号：PE2009000221

    申请日：2009-02-13

    Applicant: SIEMENS AG ,  BASF AG

    Inventor： DIEZ MICHAEL ,  DOMKE IMME ,  HARTMANN WERNER ,  HIBST HARTMUT ,  KRIEGLSTEIN WOLFGANG ,  MICHAILOVSKI ALEXEJ ,  MRONGA NORBERT ,  RIEBENSAHM MICHAEL ,  SCHMIDT WOLFGANG ,  SERVAY THOMAS

    IPC: B03C1/00

    Abstract: REFERIDO A UN PROCEDIMIENTO PARA LA RECUPERACION CONTINUA DE MINERALES A PARTIR DE UNA PULPA CON PARTICULAS MINERALES NO MAGNETICAS CON UN CONTENIDO DE SOLIDOS DE POR LO MENOS 30% DE SU MASA, EN EL CUAL LA PULPA CIRCULA POR UN REACTOR EN UNA DIRECCION DE FLUJO CONTINUA, EN LA QUE ES EXPUESTA A PARTICULAS MAGNETICAS O MAGNETIZADAS QUE FORMAN AGLOMERADOS AL MEZCLARSE CON LAS PARTICULAS MINERALES NO MAGNETICAS. DICHOS AGLOMERADOS SE TRASLADAN A UN AREA DE ACUMULACION DEL REACTOR POR MEDIO DE UN CAMPO MAGNETICO, DONSE SE DERIVAN DESDE EL AREA DE ACUMULACION DEL REACTOR Y SE SEPARAN EN PARTICULAS MINERALES NO MAGNETICAS Y PARTICULAS MAGNETICAS. LAS PARTICULAS MAGNETICAS SEPARADAS SON SOMETIDAS A UN TRATAMIENTO DE HIDROFOBIZACION, PARA RESTABLECER SU CAPACIDAD DE INTERACTUAR CON PARTICULAS DE MINERAL NO MAGNETICAS Y FORMAR NUEVOS AGLOMERADOS DE PARTICULAS. TAMBIEN, SE REFIERE A UN DISPOSITIVO QUE COMPRENDE: i) UN REACTOR PARA RECIBIR LA PULPA; ii) MEDIOS PARA LA PRODUCCION DE UN CAMPO MAGNETICO, QUE SE GENERA DE MODO QUE ACARREA LOS AGLOMERADOS A POR LO MENOS UN AREA DE ACUMULACION DEL REACTOR; iii) UN MECANISMO PARA LA DERIVACION DE LOS AGLOMERADOS DESDE POR LO MENOS UN AREA DE ACUMULACION A POR LO MENOS UN AREA DE RECOLECCION; Y iv) UN MECANISMO PARA SEPARAR LOS AGLOMERADOS

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