利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

27 条记录 (耗时 0.011 秒)

    Membrane process for separation of organic liquids
    5.
    发明公开
    Membrane process for separation of organic liquids 失效
    Filranverfahren zum Trennen von organischenFlüssigkeiten。

    公开(公告)号：EP0423949A2

    公开(公告)日：1991-04-24

    申请号：EP90310398.4

    申请日：1990-09-21

    申请人： TEXACO DEVELOPMENT CORPORATION

    发明人： Pasternak, Mordechai, Sr. ,  Bartels, Craig Roget, Sr. ,  Reale, John, Jr. ,  Shah, Vatsal Mukundlal

    IPC分类号： B01D61/36 ,  C07C29/76 ,  B01D71/38 ,  B01D71/40 ,  B01D69/12 ,  C07C68/08 ,  C07C41/34 ,  C07C45/78 ,  C07C67/48

    CPC分类号： C07C68/08 ,  B01D61/362 ,  B01D69/12 ,  B01D69/125 ,  B01D71/38 ,  B01D71/40 ,  C07C29/76 ,  C07C41/36 ,  C07C45/786 ,  C07C33/02 ,  C07C31/04 ,  C07C69/96 ,  C07C43/046

    摘要： A charge composition containing (i) an alcohol having less than three carbon atoms and (ii) an oxygenate selected from organic ethers, aldehydes, ketones, and esters is passed into contact with a first side of a non-porous membrane separating layer comprising a blend of a polyvinyl alcohol and a polyacrylic acid on a polyacrylonitrile support layer; with a pressure drop across the non-porous separating layer from the first (high pressure) side to a second (low pressure) side. At least a portion of alcohol from the charge composition and a lesser portion of oxygenate pass by pervaporation through the non-porous separating layer as a lean mixture containing more alcohol and less oxygenate than are present in said charge composition, leaving a rich liquid containing less alcohol and more oxygenate than are present in said charge composition; the lean mixture, in vapor phase at a pressure its vapor pressure being recovered as permeate from the low pressure side of the non-porous separating layer.

    摘要翻译： 含有（i）具有少于3个碳原子的醇和（ii）选自有机醚，醛，酮和酯的含氧化合物的电荷组合物与无孔膜分离层的第一面接触，所述无孔膜分离层包含 在聚丙烯腈载体层上共聚聚乙烯醇和聚丙烯酸; 在非空气分离层从第一（高压）侧到第二（低压）侧的压降。 来自电荷组合物的至少一部分醇和较少部分的含氧化合物作为含有比所述电荷组合物中存在的更多的醇和更少的氧化物的贫混合物通过非多孔分离层的渗透蒸发通过，留下含有较少的富含液体 醇和更多的含氧化合物; 贫气混合物在汽相中以其压力从蒸汽压力被回收为从无孔分离层的低压侧渗透。

    Dehydration of organic oxygenates
    6.
    发明公开
    Dehydration of organic oxygenates 失效
    Entwässerungvon organischen Sauerstoffverbindungen。

    公开(公告)号：EP0372683A2

    公开(公告)日：1990-06-13

    申请号：EP89308937.5

    申请日：1989-09-04

    申请人： TEXACO DEVELOPMENT CORPORATION

    发明人： Reale, John, Jr. ,  Bartels, Craig Roger

    IPC分类号： C07C29/76 ,  B01D61/36

    CPC分类号： B01D61/362 ,  B01D69/125 ,  B01D71/38 ,  C07C29/76 ,  C07C45/81 ,  C07C31/08 ,  C07C31/10

    摘要： Aqueous charges containing organic oxygenates can be dehydrated by means of a non-porous layer of cast polyvinyl alcohol crosslinked with an aliphatic aldehyde having at least 3 carbon atoms, including those in the aldehyde group. A pressure drop is maintained across the layer with the aqueous charge on the high pressure side. Water containing a reduced proportion of the oxygenate is recovered on the low pressure side.
    A preferred oxygenate is isopropyl alcohol. Other alcohols, as well acids, esters, ethers, ketones and aldehydes (but excluding glycols) are examples of other oxygenates.

    摘要翻译： 含有有机含氧化合物的含水电荷可以通过与具有至少3个碳原子的脂族醛（包括醛基中的那些）交联的流延聚乙烯醇的无孔层进行脱水。 在高压侧的含水电荷的整个层面上保持压降。 在低压侧回收含有氧化合物的比例降低的水。 优选的含氧化合物是异丙醇。 其它醇，以及酸，酯，醚，酮和醛（但不包括二醇）是其它含氧化合物的实例。