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    Process for recycling spent pot linings (SPL) from promary aluminium production
    1.
    发明公开
    Process for recycling spent pot linings (SPL) from promary aluminium production 有权
    一种用于从原铝产量回收废罐衬里（SPL）过程

    公开(公告)号：EP2083092A1

    公开(公告)日：2009-07-29

    申请号：EP08380016.9

    申请日：2008-01-25

    申请人： Befesa Aluminio Bilbao, S.L.

    发明人： Ruiz de Veye, Carlos ,  Alfaro Abreu, Ignacio

    IPC分类号： C22B7/00 ,  C22B21/00 ,  C01F7/50 ,  A62D3/38 ,  B09B3/00 ,  C25C3/08

    CPC分类号： C22B7/006 ,  B09B3/00 ,  C04B33/1324 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3272 ,  C04B2235/445 ,  C22B7/04 ,  C22B21/0023 ,  C22B21/0046 ,  C25C3/08 ,  Y02P10/234 ,  Y02P40/69

    摘要： The present invention relates to a process for recycling spent pot linings (SPL) from primary aluminium production, comprising the steps of grinding the separated fractions or cuts, separating materials by means of mechanical treatment, mixing salt slags with SPL, dissolving in water at basic pH the product obtained in the previous step, carrying out a chemical reaction between water and the materials to be made inert, sedimenting, removing cyanides, filtering to obtain a soluble fraction and another insoluble fraction, washing the insoluble fraction, crystallizing salts of the soluble fraction and aging or conditioning the insoluble fraction. The present invention further relates to the product obtained by means of said process and the use thereof in different fields of industry.

    摘要翻译： 本发明涉及一种用于从原铝产量回收废罐衬里（SPL）的方法，包括研磨所述分离的部分或切口，通过机械处理手段分离的材料，与SPL混合盐渣的步骤，在基本在水中溶解 pH至进行在前述步骤中获得，进行水和材料之间的化学反应的产物是惰性的，沉淀的，去除氰化物，过滤，得到可溶性级分和另一种不溶性级分，洗涤不溶性级分，晶化的可溶性的盐 馏分和老化或调理不溶性级分。 本发明还涉及由所述方法和工业的不同领域中的用途的装置所获得的产物。

    Filter powder recycling process
    4.
    发明公开
    Filter powder recycling process 有权
    Filterpulver回收-Verfahren

    公开(公告)号：EP1947202A1

    公开(公告)日：2008-07-23

    申请号：EP06380322.5

    申请日：2006-12-18

    申请人： Befesa Aluminio Bilbao, S.L.

    发明人： Ruiz de Veye, Carlos ,  Alfaro Abreu, Ignacio ,  Mugica Iraola, Juan Carlos ,  Aguirre Mujica, Patricio ,  Solozabal Echevarria, Rodolfo ,  Aragon Puy, Jorge Juan ,  Arenales Gomez, Eduardo

    IPC分类号： C22B7/02

    CPC分类号： C22B7/001 ,  C22B7/04 ,  C22B21/0069 ,  Y02P10/214

    摘要： The present invention relates to a process of treating filter powders (3) of the type produced in aluminium recycling processes in a recycling system for recycling the metal (1) of saline slag recycling (2), comprising at least a pyrolysis step (31) in which the filter powders (30) enter a rotating auger where they are heated to a temperature of not less than 500°C and not more than 600°C; and in which the organic and toxic substances breakdown in this heating and part of the carbon and other combustibles burn in the controlled presence of air, this air being mixed with the powder by the movement of the rotating auger; in which organic materials are oxidized due to the oxygen provided; and in which the solid result of the pyrolysis step (31) is added to the general saline slag recycling process (2).

    摘要翻译： 本发明涉及一种处理循环系统中铝回收过程中生产的类型的过滤粉末（3）的方法，用于再循环含有至少热解步骤（31）的盐水渣回收（2）的金属（1） 其中过滤粉末（30）进入旋转螺旋钻，在那里它们被加热到不低于500℃且不超过600℃的温度; 并且其中有机和有毒物质在该加热中分解，部分碳和其他可燃物在受控的空气存在下燃烧，该空气通过旋转螺旋钻的运动与粉末混合; 其中有机材料由于提供的氧而被氧化; 并将热解步骤（31）的固体结果加入到通用的盐水回收工艺（2）中。