Work-up of a 3-methyl-1-butene-containing mixture
    8.
    发明授权
    Work-up of a 3-methyl-1-butene-containing mixture 失效
    后处理含3-甲基-1-丁烯的混合物

    公开(公告)号:US08415520B2

    公开(公告)日:2013-04-09

    申请号:US13375091

    申请日:2010-04-29

    IPC分类号: C07C7/04

    摘要: The invention is a method for processing a mixture containing water, 3-methyl-1-butane and at least one other methylbutene. The method comprises primary distillation of the mixture, giving a gaseous primary overhead product containing methylbutene and water and a water-free primary bottom product containing 3-methyl-1-butene; condensation of the gaseous primary overhead product so as to give a condensate comprising a liquid aqueous phase and a liquid organic phase; separation of the condensate into a liquid aqueous phase and a liquid organic phase; discharge of the liquid aqueous phase; recirculation of the organic phase to the primary distillation; and finally secondary distillation of the water-free primary bottom product from the primary distillation so as to give a secondary overhead product comprising 3-methyl-1-butene and a secondary bottom product. The secondary overhead product obtained has a purity which enables it to be used directly as monomer or comonomer for preparing polymers or copolymers.

    摘要翻译: 本发明是一种处理含有水,3-甲基-1-丁烷和至少一种其它甲基丁烯的混合物的方法。 该方法包括对该混合物进行一次蒸馏,得到含有甲基丁烯和水的气态初级塔顶馏出物和含有3-甲基-1-丁烯的无水初级底物产物; 气态一级塔顶产物的冷凝,以产生包含液态水相和液体有机相的冷凝物; 将冷凝物分离成液态水相和液体有机相; 液体水相的排出; 将有机相再循环至初级蒸馏; 最后从初级蒸馏二次蒸馏无水初级底部产物,得到包含3-甲基-1-丁烯和二级底部产物的二级塔顶产物。 获得的二次塔顶产物具有使其能够直接用作制备聚合物或共聚物的单体或共聚单体的纯度。

    PROCESS FOR PREPARING DECANECARBOXYLIC ACIDS
    9.
    发明申请
    PROCESS FOR PREPARING DECANECARBOXYLIC ACIDS 有权
    制备癸酰氧基酸的方法

    公开(公告)号:US20120172624A1

    公开(公告)日:2012-07-05

    申请号:US13386523

    申请日:2010-05-25

    IPC分类号: C07C51/373

    摘要: The invention relates to a process for preparing a mixture of isomeric decane-carboxylic acids, which comprises the following steps:a) hydroformylation of a hydrocarbon mixture containing linear C4-olefins using a rhodium-containing catalyst system;b) aldol condensation of a mixture of aliphatic C5-aldehydes obtained from step a);c) selective hydrogenation of the mixture of unsaturated C10-aldehydes from step b) to aliphatic C10-aldehydes;d) uncatalysed oxidation of the mixture of aliphatic C10-aldehydes from step c) to give a mixture having a proportion of at least 70% by mass of 2-propylheptanoic acid, based on the total content of isomeric decanecarboxylic acids.

    摘要翻译: 本发明涉及一种制备异构癸烷 - 羧酸的混合物的方法,其包括以下步骤:a)使用含铑催化剂体系加氢甲酰化含有线性C 4 - 烯烃的烃混合物; b)从步骤a)获得的脂族C 5 - 醛的混合物的醛醇缩合; c)选自氢化来自步骤b)的不饱和C10-醛的混合物至脂族C 10 - 醛; d)来自步骤c)的脂族C 10 - 醛混合物的未催化氧化,得到基于异构癸烷羧酸的总含量的至少70质量%的2-丙基庚酸的混合物。

    PRODUCTION OF 3-METHYLBUT-1-EN BY MEANS OF DEHYDRATION OF 3-METHYLBUTANE-1-OL
    10.
    发明申请
    PRODUCTION OF 3-METHYLBUT-1-EN BY MEANS OF DEHYDRATION OF 3-METHYLBUTANE-1-OL 审中-公开
    通过3-甲基丁-1-醇脱水制备3-甲基-1-

    公开(公告)号:US20120136190A1

    公开(公告)日:2012-05-31

    申请号:US13322527

    申请日:2010-04-28

    IPC分类号: C07C1/20

    CPC分类号: C07C1/24 C07C11/10

    摘要: The invention relates to a process for preparing 3-methyl-1-butene by dehydration of 3-methyl-1-butanol over an aluminium-containing oxide in the temperature range from 200 to 450° C. in the gas phase or mixed liquid/gas phase, characterized in that an aluminium-containing oxide having a predominantly mesoporous pore structure whose:a) relative proportion of macropores is less than 15%;b) distribution of the pore diameter has a monomodal maximum in the range of mesopores from 3.6 to 50 nm;c) average pore diameter of all pores is in the range of mesopores and macropores from 5 to 20 nm;d) composition comprises more than 80% of gamma-aluminium oxide, is used.

    摘要翻译: 本发明涉及通过在气相或混合液体/液体中在200-450℃的含铝氧化物上脱水3-甲基-1-丁醇来制备3-甲基-1-丁烯的方法, 气相,其特征在于具有主要介孔孔结构的含铝氧化物:a)大孔相对比例小于15%; b)孔径分布在介孔范围为3.6〜50nm的单峰最大值; c)所有孔的平均孔径在5〜20nm的介孔和大孔的范围内; d)组合物包含大于80%的γ-氧化铝。