Ceramic porous body and method of manufacturing glass usable as binder therefor
    3.
    发明申请
    Ceramic porous body and method of manufacturing glass usable as binder therefor 有权
    陶瓷多孔体及其制造方法

    公开(公告)号:US20030114293A1

    公开(公告)日:2003-06-19

    申请号:US10308507

    申请日:2002-12-03

    IPC分类号: C04B038/00

    摘要: Provided is a ceramic porous body which uses a binder made of a glass excellent in acid resistance and alkali resistance which can be used for a long period of time as a filtration filter etc. This ceramic porous body is formed from ceramic particles bonded by using a binder which is a glass comprising 5 to 20 mol % of a plural kind of metal oxides, said metal oxides being selected from the group consisting of Li2O, Na2O, K2O, MgO, CaO, SrO and BaO and containing at least two alkali metal oxides among Li2O, Na2O and K2O as an essential component, 3 mol % or more of either or both of ZrO2 and TiO2 as a total amount, and SiO2 and incidental impurities as a balance.

    摘要翻译: 本发明提供一种陶瓷多孔体,其使用耐酸碱性优异的玻璃的粘合剂,其可以作为过滤器等长时间使用。该陶瓷多孔体由使用 粘合剂,其为包含5〜20摩尔%的多种金属氧化物的玻璃,所述金属氧化物选自Li 2 O,Na 2 O,K 2 O,MgO,CaO,SrO和BaO,并且含有至少两种碱金属氧化物 作为必需成分的Li 2 O,Na 2 O,K 2 O,作为总量的ZrO 2和TiO 2中的任一种或两者为3摩尔%以上,作为平衡的SiO 2和附带的杂质。

    Method for separation of p-xylene
    4.
    发明申请
    Method for separation of p-xylene 失效
    对二甲苯分离方法

    公开(公告)号:US20020045792A1

    公开(公告)日:2002-04-18

    申请号:US09929385

    申请日:2001-08-14

    IPC分类号: C07C007/144

    CPC分类号: C07C7/144 C07C15/08

    摘要: A method for separation of p-xylene by separating and recovering only p-xylene from a p-xylene-containing raw material mixture under high-temperature and high-pressure conditions using a zeolite membrane as a separating membrane, in which method the p-xylene partial pressure at the raw material side of the separating membrane is kept at a sufficiently high pressure and the p-xylene partial pressure at the recovery side of the separating membrane is controlled at a pressure which is not higher than the inflexion point of p-xylene adsorption curve. This method for separation of p-xylene using a zeolite membrane as a separating membrane can secure a sufficient p-xylene permeation amount and has industrial applicability.

    摘要翻译: 通过使用沸石膜作为分离膜,在高温高压条件下从含对二甲苯的原料混合物中分离回收对二甲苯,分离对二甲苯的方法, 将分离膜的原料侧的二甲苯分压保持在足够高的压力下,将分离膜的回收侧的对二甲苯分压控制在不高于p的转折点的压力, 二甲苯吸附曲线。 使用沸石膜作为分离膜分离对二甲苯的方法可以确保足够的对二甲苯渗透量并具有工业实用性。