Method for the rectifying separation of fluids containing (meth)acryl monomers
    4.
    发明授权
    Method for the rectifying separation of fluids containing (meth)acryl monomers 有权
    含有(甲基)丙烯酸单体的流体的精馏分离方法

    公开(公告)号:US07520964B2

    公开(公告)日:2009-04-21

    申请号:US10515639

    申请日:2003-07-02

    IPC分类号: B01D3/22 B01D3/32

    摘要: A process for rectificatively separating at least one (meth)acrylic monomer-containing fluid by feeding the fluid into a rectification column containing at least one sieve tray without a runoff segment, wherein an elementary cell is obtained from a number of centers of passages in a sieve tray, and the cell shifts regularly and repeatedly along its edges, the lengths of two shifting vectors being the lengths of the edges of the cell along which the shifting is effected; an arrangement of the centers is such that the positions of an ideal center and a real center are separated by ≦1% of half of the sum of the lengths of the two shifting vectors; and an arrangement of the passages is such that the sum of non-overlapping surface areas of an ideal passage with a real passage and vice versa is ≦1% of the surface area of the ideal passage.

    摘要翻译: 将含有至少一种(甲基)丙烯酸系单体的流体通过将流体供给至含有至少一个不具有径流段的多孔塔的精馏塔的方法,其中从多个通道中心获得基本单元, 筛板,并且单元沿其边缘规则地且重复地移动,两个移动向量的长度是实现移位的单元的边缘的长度; 中心的布置使得理想中心和实心的位置被两个移位矢量的长度之和的一半的<= 1%分开; 并且通道的布置使得理想通道的非重叠表面面积与实际通道的总和相反,<=理想通道的表面积的1%。

    Thermal separating process
    5.
    发明授权
    Thermal separating process 有权
    热分离过程

    公开(公告)号:US07150809B2

    公开(公告)日:2006-12-19

    申请号:US10823672

    申请日:2004-04-14

    IPC分类号: B01D3/00

    摘要: (Meth)acrylic monomers are separated by a thermal separation process by ascending at least one ascending gaseous stream in a separating column containing a sequence of mass transfer trays and a liquid stream that contains dissolved polymerization inhibitor which descends in the separating column, and in at least one of the streams being (meth)acrylic monomers; and spraying the inner surface of the separating column with the descending liquid stream that contains the dissolved polymerization inhibitor, and the separating column having internals, certain areas of which are shadow regions of the sprayed descending liquid stream; and which shadow regions are equipped by covering means which prevent contact of the shadow regions with (meth)acrylic monomers and consequently undesired polymerization of monomer.

    摘要翻译: (Meth)丙烯酸单体通过在含有一系列质量转移塔的分离塔中的至少一个上升气流上升和含有在分离塔中下降的溶解聚合抑制剂的液体流在热分离过程中分离, 至少一种物流是(甲基)丙烯酸单体; 并且用含有溶解的阻聚剂的下降液体流喷射分离塔的内表面,并且分离柱具有内部,其某些区域是喷射的下降液体流的阴影区域; 并且哪些阴影区域通过防止阴影区域与(甲基)丙烯酸单体接触的覆盖装置并因此单体的不希望的聚合来配备。

    Riser base
    6.
    发明授权
    Riser base 失效
    立管底座

    公开(公告)号:US07118654B2

    公开(公告)日:2006-10-10

    申请号:US10495130

    申请日:2002-12-05

    IPC分类号: B01D3/32

    CPC分类号: B01D3/24 C07C51/252 C07C57/04

    摘要: A chimney tray for a column for thermal treatment of a liquid. The chimney tray includes a total take-off of liquid by a drain connection arranged at an edge of the chimney tray, and having one or more drain channels having a gradient in a direction of the drain connection, and having a gradient in a direction of the one or more drain channels.

    摘要翻译: 一种用于液体热处理的塔的烟囱式托盘。 烟囱式托盘包括通过布置在烟囱式塔板的边缘处的排水连接器完全排出液体,并且具有一个或多个在排水连接方向上具有梯度的排水通道,并且具有在 一个或多个排水通道。

    Method for producing acrylic acid
    9.
    发明授权
    Method for producing acrylic acid 有权
    制备丙烯酸的方法

    公开(公告)号:US07109328B2

    公开(公告)日:2006-09-19

    申请号:US10500009

    申请日:2003-01-03

    摘要: A process for the fractional condensation of a hot gas mixture which as well as acrylic acid contains at least one further condensable component in a column in the presence of at least one stabilizer comprises metering in at least a portion of the at least one stabilizer as a melt.

    摘要翻译: 在至少一种稳定剂的存在下,热气体混合物的分级冷凝以及丙烯酸在塔中含有至少一种另外的可冷凝组分的方法包括在所述至少一种稳定剂的至少一部分中计量作为 熔化。