中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

81 records (took 0.027 seconds)

    PROCESO PARA LIXIVIAR UN MINERAL.
    31.
    发明专利
    PROCESO PARA LIXIVIAR UN MINERAL. 未知

    公开(公告)号：AR067378A1

    公开(公告)日：2009-10-07

    申请号：ARP080102832

    申请日：2008-06-30

    Applicant: TECH RESOURCES PTY LTD

    Inventor： HOLLITT MICHAEL JOHN ,  SHAW RAYMOND WALTER ,  REES KEVIN LEE

    IPC: C22B3/04

    Abstract: Se revela un proceso para lixiviar un mineral conteniendo minerales sulfurosos conteniendo cobre. El proceso incluye: (a) realizar una lixiviacion aireada oxidante de una parte del mineral y provocar reacciones con una fuente de hierro como pirita en el mineral y produciendo un licor de lixiviacion ácido conteniendo iones ferrosos, iones férricos, e iones de cobre en solucion. El proceso también incluye (b) realizar una lixiviacion en otra parte del mineral usando el licor de lixiviacion producido en paso (a) bajo condiciones que minimizan las reacciones con una fuente de hierro como pirita en el mineral y produciendo un licor de lixiviacion conteniendo iones de cobre en solucion, y (c) recuperar el cobre del licor de lixiviacion.

    36.
    发明专利
    未知

    公开(公告)号：NO964326D0

    公开(公告)日：1996-10-11

    申请号：NO964326

    申请日：1996-10-11

    Applicant: TECH RESOURCES PTY LTD

    Inventor： HOLLITT MICHAEL JOHN

    IPC: C01G23/04 ,  C22B3/04 ,  C22B3/14 ,  C22B34/12 ,  C22B

    Abstract: PCT No. PCT/AU95/00213 Sec. 371 Date Jan. 6, 1997 Sec. 102(e) Date Jan. 6, 1997 PCT Filed Apr. 13, 1995 PCT Pub. No. WO95/28503 PCT Pub. Date Oct. 26, 1995A process for alkaline leaching of a titaniferous material containing silica and alumina impurities in which spent leachant is recycled by treating to remove the silica and alumina impurities therefrom, by heating, maintaining the leachant at leaching temperature, or treating with an additive. The removal of the silica and alumina impurities by the method of the invention enables further use of the leachant.

    LEACHING OF A TITANIFEROUS MATERIAL
    38.
    发明专利
    LEACHING OF A TITANIFEROUS MATERIAL 未知

    公开(公告)号：CA2187892A1

    公开(公告)日：1995-10-26

    申请号：CA2187892

    申请日：1995-04-18

    Applicant: TECH RESOURCES PTY LTD

    Inventor： MCCLELLAND ROSS ALEXANDER ,  HOLLITT MICHAEL JOHN

    IPC: C01G23/04 ,  C22B3/04 ,  C22B3/06 ,  C22B34/12 ,  C22B1/02

    Abstract: An industrially realistic process for upgrading of titaniferous materials is disclosed. The process comprises the following steps: (i) a pretreatment which has the effect of rendering silica amenable to leaching under the particular conditions of a subsequent leach, and (ii) an aqueous leach in the presence of an acid, the conditions of which are chosen such that silica which enters solution is not hydrolysed or precipitated as a silicate. The pretreatment step (i) may comprise alkaline leaching, roasting or smelting. The leaching step (ii) may be conducted at low solids densities.

    ZIRCONIA BASED OPACIFIERS
    40.
    发明专利
    ZIRCONIA BASED OPACIFIERS 未知

    公开(公告)号：CA2165552A1

    公开(公告)日：1995-01-12

    申请号：CA2165552

    申请日：1994-06-30

    Applicant: TECH RESOURCES PTY LTD

    Inventor： LIDDY MATTHEW JON ,  MCCLELLAND ROSS ALEXANDER ,  HOLLITT MICHAEL JOHN

    IPC: C03C1/04

    Abstract: A process for producing a zirconia bearing opacifier is disclosed. The process comprises the steps of: (i) heat treatment of a zirconia bearing material comprising heating the zirconia bearing material in the presenoe of an additive to form a heat modified product having one or more phases which, when incorporated in a glaze and the glaze is fired, exhibit opacifying characteristics; and (ii) cooling the heat modified product to produce a product which can be used for imparting opacity.

Patent Agency Ranking