Extractive distillation of alcohol/ether/hydrocarbon mixtures
    1.
    发明授权
    Extractive distillation of alcohol/ether/hydrocarbon mixtures 失效
    醇/醚/烃混合物的萃取蒸馏

    公开(公告)号:US5160414A

    公开(公告)日:1992-11-03

    申请号:US732981

    申请日:1991-07-19

    IPC分类号: B01D3/40 C07C41/42

    CPC分类号: B01D3/40 C07C41/42

    摘要: An extractive distillation process for separation ethers (in particular methyl t-butyl ether or ethyl t-butyl ether), aliphatic hydrocarbons (in particular isobutane and/or isobutene) and alcohols (in particular methanol or ethanol) employs as solvent sulfolane(s) and/or dialkyl sulfone(s), or N-(.beta.-mercaptoalkyl)-2-pyrrolidone(s), or a mixture of N-alkyl-2-pyrrolidone(s) and either sulfolane(s) or glycol compound(s).

    摘要翻译: 用于分离醚(特别是甲基叔丁基醚或乙基叔丁基醚),脂族烃(特别是异丁烷和/或异丁烯)和醇(特别是甲醇或乙醇)的萃取蒸馏方法用作溶剂环丁砜, 和/或二烷基砜或N-(β-巯基烷基)-2-吡咯烷酮,或N-烷基-2-吡咯烷酮和环丁砜或二醇化合物(s)的混合物 )。

    Monoolefin/paraffin separation by selective absorption
    2.
    发明授权
    Monoolefin/paraffin separation by selective absorption 失效
    通过选择性吸收单烯烃/石蜡分离

    公开(公告)号:US5202521A

    公开(公告)日:1993-04-13

    申请号:US893630

    申请日:1992-06-05

    IPC分类号: C07C7/156 C10G70/00

    CPC分类号: C10G70/004 C07C7/156

    摘要: A selective absorption process for separating C.sub.2 -C.sub.4 alkenes (in particular ethylene) from C.sub.1 -C.sub.5 alkanes with a liquid extractant comprising dissolved copper(I) compound(s), in particular dissolved Cu(I) hydrocarbonsulfonate(s), is carried out in a one-column operation, wherein an overhead product is withdrawn which contains alkene(s) at a lower concentration than the feed, a side product is withdrawn which contains alkene(s) at a higher concentration than the feed, and a bottoms stream is withdrawn which contains primarily the liquid extractant.

    摘要翻译: 使用包含溶解的铜(I)化合物,特别是溶解的Cu(I)烃磺酸盐的液体萃取剂从C 1 -C 5烷烃分离C 2 -C 4烯烃(特别是乙烯)的选择性吸收方法进行 在一列操作中,其中取出含有比进料低的浓度的烯烃的塔顶产物,取出含有比进料浓度更高的烯烃的副产物,以及底部料流 被取出,主要含有液体萃取剂。