Column for concentrating phthalic anhydride
    2.
    发明授权
    Column for concentrating phthalic anhydride 失效
    用于浓缩邻苯二甲酸酐的色谱柱

    公开(公告)号:US06884324B2

    公开(公告)日:2005-04-26

    申请号:US10348391

    申请日:2003-01-21

    摘要: To improve the columns used so far for producing phthalic anhydride, and to make them less expensive and easier to install, it is proposed that in the column for concentrating phthalic anhydride two distillation stages are arranged, wherein the removal of the low-boiling components of the crude phthalic anhydride by distillation is effected in the first distillation stage (2) and the separation of the high-boiling components from the pure phthalic anhydride is effected in the second distillation stage (3), both distillation stages being arranged side by side and being separated from each other by a vertical wall (4), and that the bottom (7) of the first distillation stage (2) is connected with the bottom (10) of the second distillation stage (3).

    摘要翻译: 为了改进目前为止生产邻苯二甲酸酐使用的色谱柱,并且使它们更便宜并且更容易安装,建议在用于浓缩邻苯二甲酸酐的色谱柱中设置两个蒸馏级,其中除去低沸点组分 在第一蒸馏阶段(2)中进行粗制邻苯二甲酸酐的蒸馏,并且在第二蒸馏阶段(3)中进行高纯沸点成分与纯邻苯二甲酸酐的分离,两个蒸馏阶段并排排列, 通过垂直壁(4)彼此分离,并且第一蒸馏段(2)的底部(7)与第二蒸馏段(3)的底部(10)连接。

    Process for catalytically producing organic substances by partial oxidation
    3.
    发明授权
    Process for catalytically producing organic substances by partial oxidation 失效
    通过部分氧化催化生产有机物的方法

    公开(公告)号:US07038065B2

    公开(公告)日:2006-05-02

    申请号:US10344034

    申请日:2001-07-11

    IPC分类号: C07D305/12

    摘要: A process for catalytically generating organic substances by partial oxidation of an organic feedstock in the presence of molecular oxygen at temperatures in the range from 200 to 500° C. in at least one cooling-tube reactor, wherein 40 to 100 wt-% of the total amount of catalyst is disposed as a coating on the outside of the cooling tubes.

    摘要翻译: 一种在至少一个冷却管式反应器中,在分子氧存在下在200-500℃范围内的有机原料部分氧化催化产生有机物质的方法,其中40-100重量% 催化剂的总量作为涂层设置在冷却管的外侧。