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174 条记录 (耗时 0.018 秒)

    Method for Production of Diphenylethylene
    6.
    发明申请
    Method for Production of Diphenylethylene 审中-公开
    二苯乙烯生产方法

    公开(公告)号：US20080255399A1

    公开(公告)日：2008-10-16

    申请号：US11579793

    申请日：2005-05-03

    申请人： Alain Riondel ,  Christophe Navarro ,  Jean-Philippe Gendarme ,  Bernard Wechtler

    发明人： Alain Riondel ,  Christophe Navarro ,  Jean-Philippe Gendarme ,  Bernard Wechtler

    IPC分类号： C07C7/05

    CPC分类号： C07C15/50

    摘要： The invention relates to a method for production of diphenylethylene (DPE) comprising the steps of: (a) catalytic dehydrogenation of diphenylethane (DPA) in the presence of water, (b) addition of a light organic solvent to the mixture from step (a) and (c) decanting the mixture from step (b) with recovery of a flow comprising diphenylethylene as a mixture with the solvent added in step (b). The invention further relates to a given mixture of DPE, DPA and solvent and use thereof in polymerisation.

    摘要翻译： 本发明涉及二苯基乙烯（DPE）的制备方法，包括以下步骤：（a）在水存在下催化脱氢二苯乙烷（DPA），（b）向来自步骤（a）的混合物中加入轻质有机溶剂 ）和（c）通过回收包含与步骤（b）中添加的溶剂的混合物的二苯基乙烯的流动来从步骤（b）倾析混合物。 本发明还涉及DPE，DPA和溶剂的给定混合物及其在聚合中的用途。

    Process for the separation of alpha-olefins by distillation of an effluent comprising ethylene and 1-butene
    7.
    发明授权
    Process for the separation of alpha-olefins by distillation of an effluent comprising ethylene and 1-butene 失效
    通过蒸馏出包含乙烯和1-丁烯的流出物来分离α-烯烃的方法

    公开(公告)号：US5853551A

    公开(公告)日：1998-12-29

    申请号：US720384

    申请日：1996-07-23

    申请人： Pierre Boucot ,  Jean-Alain Chodorge ,  Alain Forestiere ,  Yves Glaize ,  Fran.cedilla.ois Hughes

    发明人： Pierre Boucot ,  Jean-Alain Chodorge ,  Alain Forestiere ,  Yves Glaize ,  Fran.cedilla.ois Hughes

    IPC分类号： C07C7/05 ,  B01D3/34 ,  B01D3/14

    CPC分类号： C07C7/05

    摘要： The invention concerns a process for the separation of a mixture comprising ethylene, 1-butene, alpha-olefins containing at least 6 carbon atoms per molecule and possibly heavier hydrocarbon products, the ethylene content of the mixture being in the range 30% to 70% by weight, in which separation is effected in a distillation zone to obtain an overhead fraction comprising the major portion of the ethylene present in the mixture and between 0% and 100% by weight of the 1-butene present in the mixture, the process being characterized in that the zone is also supplied with supplemental 1-butene in an amount in the range 1 to 40 times the quantity (by weight) of 1-butene present in the mixture. In a preferred implementation of the process of the invention, the mixture originates form a homogenous liquid phase ethylene oligomerisation zone.

    摘要翻译： 本发明涉及一种分离包含乙烯，1-丁烯，每分子含有至少6个碳原子的α-烯烃和可能较重烃产物的混合物的混合物的方法，该混合物的乙烯含量在30％至70％的范围内， ，其中在蒸馏区中进行分离以获得包含混合物中存在的乙烯的主要部分和0重量％至100重量％的混合物中存在的1-丁烯的塔顶馏分，该方法为 其特征在于，该区域还提供了在混合物中存在的1-丁烯的量（重量）的1至40倍的量的补充的1-丁烯。 在本发明方法的优选实施方案中，混合物起始形成均相液相乙烯齐聚区。

    Production and purification of t-butylstyrene
    8.
    发明授权
    Production and purification of t-butylstyrene 失效
    生产和纯化叔丁基苯乙烯

    公开(公告)号：US4982034A

    公开(公告)日：1991-01-01

    申请号：US452706

    申请日：1989-12-19

    申请人： Eric J. Moore ,  Marc L. Kullberg ,  Lori B. Lane

    发明人： Eric J. Moore ,  Marc L. Kullberg ,  Lori B. Lane

    IPC分类号： C07C7/05 ,  C07C7/20

    CPC分类号： C07C7/05 ,  C07C7/20

    摘要： A process to purify t-butylstyrene from product containing substantial amounts of t-butylethylbenzene and small amounts of alkenyl-substituted styrene impurities by a combination of vacuum fractionation and vacuum evaporation in the presence a polymerization inhibitor, and treatment with a carbonaceous adsorbent. Such a product to be purified can be prepared by catalytically, oxidatively dehydrogenating over an alkaline pyrophosphate in the vapor phase t-butylethylbenzene containing about 95 wt. % or more of the p-isomer which can be made by alkylating ethylbenzene with isobutylene in a controlled manner in the presence of cooled concentrated sulfuric acid.

    摘要翻译： 通过在存在聚合抑制剂的情况下通过真空分级和真空蒸发的组合以及用含碳吸附剂进行处理，从含有大量叔丁基苯和少量烯基取代的苯乙烯杂质的产物中纯化叔丁基苯乙烯的方法。 待纯化的这种产物可以通过催化，氧化脱氢在碱性焦磷酸盐中，在含有约95wt。 可以通过在冷却的浓硫酸存在下以受控的方式用异丁烯烷基化乙苯来制备的对异构体的百分比或更多。

    Process for purifying a C.sub.4 and/or C.sub.5 hydrocarbon cut containing water and dimethyl ether as impurities
    9.
    发明授权
    Process for purifying a C.sub.4 and/or C.sub.5 hydrocarbon cut containing water and dimethyl ether as impurities 失效
    用于纯化含有水和二甲醚作为杂质的C4和/或C5烃馏分的方法

    公开(公告)号：US4474647A

    公开(公告)日：1984-10-02

    申请号：US371341

    申请日：1982-04-23

    申请人： Lionel Asselineau ,  Jacques Leonard ,  Jean Chodorge ,  Jean Gaillard

    发明人： Lionel Asselineau ,  Jacques Leonard ,  Jean Chodorge ,  Jean Gaillard

    IPC分类号： C07C7/04 ,  C07C7/05

    CPC分类号： C07C7/05 ,  C07C7/04

    摘要： A C.sub.4 and/or C.sub.5 olefinic hydrocarbon cut, containing dimethyl ether and water as impurities, in a relative proportion of dimethyl ether to water of at most 5:1, is purified in a distillation zone where it is introduced at an intermediate level, distant from the top or from the bottom thereof by at least 3 theoretical plates, optionally with a stripping gas, and separated into a overhead fraction comprising an aqueous liquid phase and a hydrocarbon liquid phase at least partially recycled as reflux to the upper part of the distillation zone, and a bottom fraction formed of the purified C.sub.4 and/or C.sub.5 olefinic cut.

    摘要翻译： 将二甲醚和水作为杂质的C4和/或C5烯烃烃馏分在二甲醚与水的相对比例至多为5:1的蒸馏区进行纯化，在蒸馏区中将其以中间水平 从顶部或底部至少3个理论塔板，任选地带有汽提气体，并分离成包含水性液相和烃液相的塔顶馏分，其至少部分地作为回流再循环到蒸馏的上部 区和由纯化的C4和/或C5烯烃切割形成的底部馏分。

    Energy-saving distillative separation using low-temperature heat input
    10.
    发明授权
    Energy-saving distillative separation using low-temperature heat input 失效
    节能蒸馏分离采用低温热输入

    公开(公告)号：US4444576A

    公开(公告)日：1984-04-24

    申请号：US438179

    申请日：1982-11-01

    申请人： James M. Ryan ,  John V. O'Brien

    发明人： James M. Ryan ,  John V. O'Brien

    IPC分类号： B01D3/00 ,  C07C7/05 ,  B01D3/40

    CPC分类号： C07C7/05 ,  B01D3/007 ,  Y02B30/52 ,  Y02P20/124 ,  Y02P20/57 ,  Y10S203/04 ,  Y10S62/929

    摘要： A method for the distillative separation of a feed stream containing light hydrocarbons and acid gas components in a distillative column into an enriched overhead product, such as a carbondioxide fraction, and an enriched bottom product of C.sub.2 + and hydrogen sulfide, the method which comprises: introducing a liquid alkane additive into the column, to provide a relatively uniform, constant temperature zone in the column above the point of feed inlet of the feed stream; extracting heat from the upper portion of the low-temperature zone; and introducing heat into the lower portion of the temperature zone approximately at or above the feed inlet of the feed stream, to reduce the energy requirement of the distillation.

    摘要翻译： 一种将蒸馏塔中含有轻质烃和酸性气体组分的进料流蒸馏分离成富含塔顶馏出物如二氧化碳馏分和C2 +和硫化氢的富含底部产物的方法，该方法包括：引入 将液体烷烃添加剂加入到塔中，以在进料流的进料入口点之上的塔中提供相对均匀的恒温区; 从低温区的上部提取热量; 并且在进料流的进料入口处大约等于或高于该温度区的下部引入热量，以减少蒸馏的能量需求。