VERFAHREN ZUR AUFARBEITUNG VON NAPHTHA
    6.
    发明授权
    VERFAHREN ZUR AUFARBEITUNG VON NAPHTHA 有权
    一种用于处理石脑油

    公开(公告)号:EP1601746B1

    公开(公告)日:2007-04-11

    申请号:EP04705010.9

    申请日:2004-01-24

    摘要: Disclosed is a method for processing naphtha, according to which a) naphtha or a stream generated from naphtha in a preprocessing step is divided into a stream A that is stripped of aromatics and a stream B which is enriched with aromatics in a membrane unit, the aromatics concentration in stream A ranging from 2 to 12 percent by weight (step a); b) partial stream A is directed at least in part into a steam cracker (step b); c) partial stream B is directed at least in part into a unit in which said stream B is divided into a stream C or several streams C' C'', C''',..., which has/have a lower aromatics content than stream B, and a stream D or several streams D', D'', D''',..., which has/have a higher aromatics content than stream B, by means of a thermal process (step c); d) stream C or at least one of the streams C', C'', C''' is delivered as a whole or in part to the feed for the steam cracker or directly to the steam cracker (step d).

    VERFAHREN ZUR ABTRENNUNG EINES HOMOGENKATALYSATORS
    9.
    发明公开
    VERFAHREN ZUR ABTRENNUNG EINES HOMOGENKATALYSATORS 审中-公开
    处理对均相催化剂的分离

    公开(公告)号:EP1651346A1

    公开(公告)日:2006-05-03

    申请号:EP04739797.1

    申请日:2004-06-11

    CPC分类号: C07F15/0073 C07F15/008

    摘要: The invention relates to a method for separating a mixture containing a) a monoethylenically unsaturated compound that can be obtained by adding two terminal olefins carrying the functional groups necessary for producing the monoethylenically unsaturated compound containing at least two functional groups, or a saturated compound obtained by hydrogenating one such compound, b) a compound that can be obtained by adding more than two of the terminal olefins cited in a) or a compound obtained by hydrating one such compound, and c) a compound which contains a transition metal, is homogeneous in relation to the mixture, and is suitable as a catalyst for producing a monoethylenically unsaturated compound by adding two terminal olefins carrying the functional groups necessary for producing the monoethylenically unsaturated compound containing at least two functional groups. According to said method, the mixture is separated by means of a semi-permeable membrane, obtaining a permeate and a retentate, in such a way that the weight ratio of constituent b) to constituent c) in the mixture supplied to the semi-permeable membrane is smaller than in the retentate.