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    PART-STREAM DISTILLATION
    45.
    发明公开
    PART-STREAM DISTILLATION 审中-公开
    部分蒸馏

    公开(公告)号：EP3212627A1

    公开(公告)日：2017-09-06

    申请号：EP15786922.3

    申请日：2015-10-27

    Applicant: BASF SE ,  Dow Global Technologies LLC

    Inventor： RIEDEL, Dominic ,  TELES, Joaquim, Henrique ,  SEELIG, Bianca ,  KAMPE, Philip ,  WEBER, Markus ,  SCHRÖDER, Alexander ,  URBANCZYK, Daniel ,  WEIDENBACH, Meinolf ,  MÜLLER, Ulrich ,  WITZL, Werner ,  PARVULESCU, Andrei-Nicolae ,  BÄR, Holger

    IPC: C07D301/12

    CPC classification number: C07D301/12

    Abstract: A continuous process for the preparation of propylene oxide, comprising (a) reacting propene with hydrogen peroxide in a reaction apparatus in the presence of acetonitrile as solvent, obtaining a stream SO containing propylene oxide, acetonitrile, water, at least one further component B wherein the normal boiling point of the at least one component B is higher than the normal boiling point of acetonitrile; (b) separating propylene oxide from SO, obtaining a stream SI containing acetonitrile, water and the at least one further component B; (c) dividing S1 into two streams S2 and S3; (d) subjecting S3 to a vapor-liquid fractionation in a first fractionation unit, obtaining a vapor fraction stream S4 a being depleted, relative to S3, of at least one of the at least one component B and obtaining a liquid bottoms stream S4b, and subjecting at least part of the vapor fraction stream S4 a to a vapor-liquid fractionation in a second fractionation unit, obtaining a vapor fraction stream S4c and a liquid bottoms stream S4 being depleted, relative to S4a, of at least one of the at least one component B; (e) recycling at least a portion of S4, optionally after work-up, to (a).

    Abstract translation: 一种制备环氧丙烷的连续方法，包括（a）在乙腈作为溶剂存在下，在反应装置中使丙烯与过氧化氢反应，获得含有环氧丙烷，乙腈，水，至少一种另外的组分B的物流SO，其中 至少一种组分B的标准沸点高于乙腈的标准沸点; （b）从SO中分离氧化丙烯，获得含有乙腈，水和至少一种其他组分B的料流S1; （c）将S1分成两个流S2和S3; （d）使S3在第一分馏单元中进行气液分馏，获得至少一种组分B中的至少一种的相对于S3被耗尽的蒸气分馏流S4a，并获得液体底部料流S4b， 并且使至少部分蒸气馏分流S4a在第二分馏单元中经受蒸气 - 液体分馏，获得相对于S4a而言至少一个蒸气馏分流S4c和液体底部物流S4被耗尽 至少一个组件B; （e）可选地在后处理之后，将至少一部分S4再循环至（a）。

    A PROCESS FOR PREPARING PROPYLENE OXIDE
    46.
    发明公开
    A PROCESS FOR PREPARING PROPYLENE OXIDE 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON PROPYLENOXID

    公开(公告)号：EP3024579A1

    公开(公告)日：2016-06-01

    申请号：EP14739188.2

    申请日：2014-07-16

    Applicant: BASF SE ,  Dow Global Technologies LLC

    Inventor： TELES, Joaquim Henrique ,  SEELIG, Bianca ,  RIEDEL, Dominic ,  KAMPE, Philip ,  URBANCZYK, Daniel ,  WEBER, Markus ,  MÜLLER, Ulrich ,  PARVULESCU, Andrei-Nicolae ,  GUMLICH, Kai ,  BASSLER, Peter ,  BARTOSCH, Christian ,  JACUBINAS, Richard ,  WEIDENBACH, Meinolf ,  WITZL, Werner

    IPC: B01J29/89 ,  B01J37/02 ,  C07D301/12 ,  B01J27/16

    CPC classification number: C07D301/12 ,  B01J27/18 ,  B01J27/188 ,  B01J29/7038 ,  B01J29/7088 ,  B01J35/002 ,  B01J35/1019 ,  B01J2229/186 ,  Y02P20/52

    Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt of a phosphorus oxyacid wherein the molar ratio of potassium relative to phosphorus in the at least one potassium salt of a phosphorus oxyacid is in the range of from 0.6 to 1.4; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW comprising zinc, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane.

    Abstract translation: 一种用于制备环氧丙烷的连续方法，包括（i）提供包含丙烯，过氧化氢，乙腈，水，任选的丙烷和至少一种溶解的含磷酸的钾盐的液体进料流，其中钾相对的摩尔比 至少一种含磷酸的钾盐中的磷在0.6至1.4的范围内; （ii）将（i）中提供的液体进料流送入包含催化剂的环氧化反应器中，所述催化剂包括含锌的结构型MVVW的钛沸石，并使该液体进料流在环氧化反应器中进行环氧化反应条件，得到反应混合物 包括环氧丙烷，乙腈，水，至少一种溶解的含磷酸的钾盐，任选的丙烯，以及任选的丙烷; （iii）从环氧化反应器中除去流出物流，流出物流包含环氧丙烷，乙腈，水，至少一部分溶解的磷酸钾盐，任选的丙烯和任选的丙烷。

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