Method of Preparing Catalyst Support from a Waste Catalyst
    5.
    发明申请
    Method of Preparing Catalyst Support from a Waste Catalyst 失效
    从废催化剂制备催化剂载体的方法

    公开(公告)号:US20080306172A1

    公开(公告)日:2008-12-11

    申请号:US11793461

    申请日:2005-12-21

    摘要: A method of preparing, preferably recycling, a catalyst support material is disclosed and is particularly applicable to recycling a titania support. The invention includes crushing the used catalyst support that is obtained by leaching catalytic components from a used supported catalyst and preferably combining it with new catalyst support in order to provide the required average particle size and ratio of crystal phases. The invention has a number of benefits including making use of used catalyst support materials which have been conventionally disposed of and also providing a method to more efficiently recycle the active component. Where the support is recycled for a similar application, less promoter may be required.

    摘要翻译: 公开了制备,优选地回收催化剂载体材料的方法,并且特别适用于回收二氧化钛载体。 本发明包括将所使用的催化剂载体粉碎,所用的催化剂载体是通过从所使用的负载型催化剂中浸出催化组分而获得的,优选将其与新的催化剂载体结合,以提供所需的平均粒度和结晶相的比例。 本发明具有许多益处,其中包括使用常规处理的用过的催化剂载体材料,并提供一种更有效地回收活性组分的方法。 如果支持被回收用于类似的应用,则可能需要较少的启动子。

    Method of preparing catalyst support from a waste catalyst
    7.
    发明授权
    Method of preparing catalyst support from a waste catalyst 失效
    从废催化剂制备催化剂载体的方法

    公开(公告)号:US07811967B2

    公开(公告)日:2010-10-12

    申请号:US11793461

    申请日:2005-12-21

    摘要: A method of preparing, preferably recycling, a catalyst support material is disclosed and is particularly applicable to recycling a titania support. The invention includes crushing the used catalyst support that is obtained by leaching catalytic components from a used supported catalyst and preferably combining it with new catalyst support in order to provide the required average particle size and ratio of crystal phases. The invention has a number of benefits including making use of used catalyst support materials which have been conventionally disposed of and also providing a method to more efficiently recycle the active component. Where the support is recycled for a similar application, less promoter may be required.

    摘要翻译: 公开了制备,优选地回收催化剂载体材料的方法,并且特别适用于回收二氧化钛载体。 本发明包括将所使用的催化剂载体粉碎,所用的催化剂载体是通过从所使用的负载型催化剂中浸出催化组分而获得的,优选将其与新的催化剂载体结合,以提供所需的平均粒度和结晶相的比例。 本发明具有许多益处,其中包括使用常规处理的用过的催化剂载体材料,并提供一种更有效地回收活性组分的方法。 如果支持被回收用于类似的应用,则可能需要较少的启动子。

    Process for preparing a sulphur cement product
    9.
    发明授权
    Process for preparing a sulphur cement product 失效
    硫磺水泥制品的制备方法

    公开(公告)号:US07335253B2

    公开(公告)日:2008-02-26

    申请号:US11392066

    申请日:2006-03-29

    摘要: The invention provides a process for preparing a sulphur cement product comprising the following steps: (a) selectively oxidising hydrogen sulphide to elemental sulphur by contacting, in a reaction zone, a hydrogen sulphide containing feed gas and a molecular-oxygen containing gas with a particulate oxidation catalyst under selective oxidation conditions; (b) discharging a stream comprising liquid and/or solid elemental sulphur and particulate oxidation catalyst from the reaction zone; (c) admixing the stream comprising elemental sulphur and particulate oxidation catalyst with at least any one of elemental sulphur, a sulphur cement filler, a sulphur cement modifier, or aggregate at a temperature at which sulphur is molten; (d) solidifying the mixture obtained in step (c) by cooling it to a temperature below the melting temperature of sulphur to obtain the sulphur cement product. The invention further provides the use of a stream comprising elemental sulphur and particulate oxidation catalyst for preparing a sulphur cement product, which stream is obtained in selective oxidation step (a) of such process.

    摘要翻译: 本发明提供了一种制备硫磺水泥产品的方法,包括以下步骤:(a)通过在反应区中将含硫化氢的进料气体和含分子氧气体与颗粒物接触,将硫化氢选择性氧化成元素硫 选择氧化条件下的氧化催化剂; (b)从反应区排出包含液体和/或固体元素硫和颗粒氧化催化剂的物流; (c)在硫熔化的温度下将包含元素硫和颗粒氧化催化剂的物流与元素硫,硫磺水泥填料,硫磺水泥改性剂或骨料中的至少任一种混合; (d)将步骤(c)中得到的混合物冷却至低于硫的熔融温度的温度,得到硫磺水泥产品。 本发明还提供了包含元素硫和颗粒氧化催化剂的流的用途,用于制备硫磺水泥产品,该流是在这种方法的选择性氧化步骤(a)中获得的。