Process for reducing the carbon content of aqueous hydrogen peroxide
solutions
    2.
    发明授权
    Process for reducing the carbon content of aqueous hydrogen peroxide solutions 失效
    减少过氧化氢水溶液中碳含量的方法

    公开(公告)号:US5342602A

    公开(公告)日:1994-08-30

    申请号:US159578

    申请日:1993-12-01

    CPC分类号: C01B15/013

    摘要: Aqueous hydrogen peroxide solutions contain variable amounts of carbon compounds following their production by the so-called anthraquinone process. Various methods are known for separating out carbon compounds, including those using organic ion exchangers or macro-porous organic adsorber resins. Described is a process using a solid adsorption agent, which can be regenerated without causing any problems, whereby the carbon content is reduced. The solid adsorption agent is a zeolite from the set of dealuminised H-Y-zeolites with a (SiO.sub.2 /Al.sub.2 O.sub.3) ratio equal to or greater than 20 or H-mordenites with a (SiO.sub.2 /A1.sub.2 O.sub.3) ratio of at least 20.

    摘要翻译: 过氧化氢水溶液通过所谓的蒽醌法生产后含有不同量的碳化合物。 已知有各种分离碳化合物的方法,包括使用有机离子交换剂或大孔有机吸附剂树脂的方法。 描述了使用固体吸附剂的方法,其可以再生而不引起任何问题,由此碳含量降低。 固体吸附剂是来自(SiO 2 / Al 2 O 3)比等于或大于20的脱铝H-Y-沸石组,或(SiO 2 / A 12 O 3)比至少为20的H-丝光沸石组成的沸石。

    Method for the purification of exhaust air and/or effluents by contact with moulded bodies containing dealuminated zeolite Y
    5.
    发明授权
    Method for the purification of exhaust air and/or effluents by contact with moulded bodies containing dealuminated zeolite Y 失效
    通过与含有脱铝沸石Y的成型体接触来净化废气和/或流出物的方法

    公开(公告)号:US06171568B2

    公开(公告)日:2001-01-09

    申请号:US08208143

    申请日:1994-03-10

    IPC分类号: B01D5344

    摘要: Disclosed is a method for the purification of exhaust air and/or effluents, which may be exhausted, for example, from auto painting units or furniture lacquering units, involving contacting the air and/or effluents with a molded body. The molded body is made from dealuminated zeolite Y and at least one binder, which may be, for example, bentonites, kaolins, sepiolites or attapulgites, and having a hydrophobic factor of from 1.5 to 6.0, wherein a slurry of the binder in water does not exceed a pH of 10 and wherein the molded body is calcined at 850° to 1100° C. The molded body is produced by a process involving mixing pulverulent dealuminated zeolite Y with at least one binder, optionally with the addition of a lubricant and/or a pore former, and optionally with water or an organic solvent, moulding the resulting mass to form a molded body, and drying and calcining the molded bodies.

    摘要翻译: 公开了一种用于净化排气和/或排出物的方法,其可以例如由自动涂装单元或家具涂漆单元排出,包括使空气和/或流出物与成型体接触。 成型体由脱铝沸石Y和至少一种粘合剂制成,其可以是例如膨润土,高岭土,海泡石或绿坡缕石,并且具有1.5至6.0的疏水因子,其中粘合剂在水中的浆料 不超过10的pH,并且其中成型体在850℃至1100℃下煅烧。所述成型体通过包括将粉状脱铝沸石Y与至少一种粘合剂混合的方法制备,任选地加入润滑剂和/ 或成孔剂,以及任选地与水或有机溶剂混合,将所得物质模塑成型体,并干燥和煅烧成型体。