PRODUCTION METHOD OF METHYL METHACRYLATE
    1.
    发明申请
    PRODUCTION METHOD OF METHYL METHACRYLATE 审中-公开
    甲基丙烯酸甲酯的生产方法

    公开(公告)号:US20090209782A1

    公开(公告)日:2009-08-20

    申请号:US12294068

    申请日:2007-03-28

    IPC分类号: C07C69/54

    CPC分类号: C07C67/38 C07C69/54

    摘要: A method of producing methyl methacrylate comprising the following steps: Thermal decomposition step: a hydrocarbon having 3 or more carbon atoms is thermally decomposed to obtain a decomposed gas having a total content of propyne and propadiene of 2 wt % or more, Separation step: mixed liquid rich in propyne and propadiene is separated from the decomposed gas obtained in the thermal decomposition step, Propyne purification step: the mixed liquid rich in propyne and propadiene obtained in the separation step is subjected to extractive distillation, for separation into purified propyne, and crude propadiene containing propadiene as the main component, Isomerization step: the crude propadiene obtained in the propyne purification step is isomerized in the presence of an isomerization catalyst, to obtain crude propyne containing propyne as the main component, and Carbonylation step: the purified propyne obtained in the propyne purification step is reacted with carbon monoxide and methanol in the presence of a group VIII metal catalyst system, to produce methyl methacrylate.

    摘要翻译: 一种生产甲基丙烯酸甲酯的方法,包括以下步骤:热分解步骤:将具有3个或更多碳原子的烃热分解,得到丙炔和丙二烯的总含量为2重量%以上的分解气体,分离步骤:混合 丙烯和丙二烯的液体与热分解步骤中分解的气体分离,丙炔纯化步骤:将分离步骤中得到的富含丙炔和丙二烯的混合液进行萃取蒸馏,分离成纯化丙炔, 以丙二烯为主要成分的丙二烯异构化步骤:在丙炔纯化步骤中得到的粗丙二烯在异构化催化剂存在下异构化,得到含有丙炔的粗丙炔作为主要成分,羰基化步骤:将纯化的丙炔 丙炔纯化步骤与一氧化碳和甲醇反应 在VIII族金属催化剂体系的存在下,生产甲基丙烯酸甲酯。

    Process for producing hydroxy compound
    2.
    发明授权
    Process for producing hydroxy compound 失效
    羟基化合物的制备方法

    公开(公告)号:US07807855B2

    公开(公告)日:2010-10-05

    申请号:US11576479

    申请日:2005-10-04

    IPC分类号: C07C37/02

    摘要: The invention provides a process for producing a hydroxy compound including the following steps: (a) chlorination step: a step of producing a chlorinated hydrocarbon and hydrogen chloride from a hydrocarbon and chlorine; (b) hydrolysis step: a step of producing a hydroxy compound and hydrogen chloride from the chlorinated hydrocarbon and water; and (c) oxidation step: a step of producing chlorine by reaction of oxygen and hydrogen chloride obtained in the chlorination step and/or the hydrolysis step, and (d) recycling at least a portion of the chlorine to the chlorination step.

    摘要翻译: 本发明提供一种生产羟基化合物的方法,包括以下步骤:(a)氯化步骤:从烃和氯制备氯化烃和氯化氢的步骤; (b)水解步骤:从氯化烃和水中生产羟基化合物和氯化氢的步骤; 和(c)氧化步骤:通过在氯化步骤和/或水解步骤中获得的氧和氯化氢的反应来生产氯的步骤,和(d)将氯的至少一部分再循环到氯化步骤。

    Process for Producing Hydroxy Compound
    3.
    发明申请
    Process for Producing Hydroxy Compound 失效
    生产羟基化合物的方法

    公开(公告)号:US20090048470A1

    公开(公告)日:2009-02-19

    申请号:US11576479

    申请日:2005-10-04

    IPC分类号: C07C35/00

    摘要: The invention provides a process for producing a hydroxy compound comprising the following steps: chlorination step: a step of obtaining a chlorinated hydrocarbon and hydrogen chloride from a hydrocarbon and chlorine; hydrolysis step: a step of obtaining a hydroxy compound and hydrogen chloride from the chlorinated hydrocarbon and water; and oxidation step; a step of obtaining chlorine by reaction of oxygen and hydrogen chloride obtained in the chlorination step and/or the hydrolysis step, and recycling at least a portion of the chlorine to the chlorination step.

    摘要翻译: 本发明提供一种生产羟基化合物的方法,包括以下步骤:氯化步骤:从烃和氯获得氯化烃和氯化氢的步骤; 水解步骤:从氯化烃和水中获得羟基化合物和氯化氢的步骤; 和氧化步骤; 通过在氯化步骤和/或水解步骤中获得的氧和氯化氢的反应获得氯并将至少一部分氯再循环到氯化步骤中的步骤。

    Dehydration method
    4.
    发明授权
    Dehydration method 失效
    脱水方法

    公开(公告)号:US08257557B2

    公开(公告)日:2012-09-04

    申请号:US12064982

    申请日:2006-08-29

    摘要: A dehydration method for removing water from a hydrolysis reaction mixture containing unreacted water generated when monochlorobenzene is hydrolyzed to produce phenol, the method for dehydrating the hydrolysis reaction mixture includes supplying a hydrolysis reaction mixture to a distillation tower, supplying a liquid containing monochlorobenzene to the tower top portion of the distillation tower, and removing the substantially whole amount of the water in the hydrolysis reaction mixture together with monochlorobenzene from the tower top portion by distillation.

    摘要翻译: 从含有一氯苯水解生成苯酚的未反应水的水解反应混合物中除去水分的脱水方法,水解反应混合物的脱水方法包括向蒸馏塔供给水解反应混合物,向塔内供给含有一氯苯的液体 并且通过蒸馏从塔顶馏分中除去水解反应混合物中基本上全部量的水和一氯苯。

    Process for producing chlorine
    5.
    发明授权
    Process for producing chlorine 有权
    生产氯的方法

    公开(公告)号:US06713035B1

    公开(公告)日:2004-03-30

    申请号:US09889736

    申请日:2001-07-20

    IPC分类号: C01B704

    CPC分类号: C01B7/04 Y02P20/228

    摘要: A process for producing chlorine comprising the step of oxidizing hydrogen chloride in a gas containing hydrogen chloride with a gas containing oxygen in a fixed bed reaction system having a reaction zone comprising a catalyst-packed layer, wherein a superficial linear velocity of the gas in a column is from 0.70 to 10 m/sec. According to this process, the stable activity of the catalyst is maintained and chlorine can be stably obtained at a high yield since the excessive hot spot in the catalyst-packed layer is suppressed and the catalyst-packed layer can be effectively used.

    摘要翻译: 一种生产氯的方法,包括在具有包含催化剂填充层的反应区的固定床反应体系中,在含有氯的气体中将含氯化氢的气体中的氯化氢氧化的步骤,其中气体的表观线速度为 柱为0.70〜10m / sec。 根据该方法,由于催化剂填充层中的过多的热点被抑制并且可以有效地使用催化剂填充层,所以保持催化剂的稳定的活性并能以高的产率稳定地获得氯。

    Process for producing chlorine
    6.
    发明申请
    Process for producing chlorine 审中-公开
    生产氯的方法

    公开(公告)号:US20050031529A1

    公开(公告)日:2005-02-10

    申请号:US10932148

    申请日:2004-09-02

    IPC分类号: B01J23/46 B01J23/652 C01B7/04

    摘要: A process for producing chlorine by oxidizing hydrogen chloride with oxygen. The process uses various supported ruthenium catalysts or a catalyst system containing (A) an active component of a catalyst and (B) a compound having thermal conductivity of a solid phase measured by at least one point within a range from 200 to 500° C. of not less than 4 W/m. ° C. Specifically, in the drafted Abstract, we proposed to delete the detailed description of various supported ruthenium catalysts which is present on pages 12 and 13 of the specification and in Claim 1.

    摘要翻译: 一种用氧气氧化氯化氢生产氯的方法。 该方法使用各种负载的钌催化剂或含有(A)催化剂的活性组分的催化剂体系,(B)通过至少一个点在200-500℃范围内测量具有固相热导率的化合物。 不低于4W / m。 ℃。具体来说,在起草的摘要中,我们提出删除存在于说明书和权利要求1的第12和13页上的各种负载型钌催化剂的详细描述。

    Process for recovering propylene oxide
    8.
    发明授权
    Process for recovering propylene oxide 失效
    回收氧化丙烯的方法

    公开(公告)号:US5693193A

    公开(公告)日:1997-12-02

    申请号:US409058

    申请日:1995-03-23

    CPC分类号: C07D301/19 C07D301/32

    摘要: Propylene oxide is recovered through the use of an additive in a distillation solution, resulting in suppressed side reactions and reduced loss of product. Propylene oxide is produced by oxidizing ethylbenzene in a liquid phase with molecular oxygen to a obtain a reaction liquid containing ethylbenzene hydroperoxide; distilling the reaction liquid to obtain a concentrated solution of ethylbenzene hydroperoxide; further mixing and reacting the concentrated solution with propylene to obtain a mixed solution containing propylene oxide; and distilling the mixed solution to separate and recover propylene oxide. At least one compound selected from aliphatic saturated alcohols having 2 to 4 carbon atoms, allyl alcohol, saturated aliphatic hydrocarbons having 6 or 7 carbon atoms, benzene, ethers, ketones, nitriles, amines, pyridines, diamines, and aminoalcohols is added to the mixed distillation solution in an amount of 0.01-100 parts by weight per 100 parts by weight of propylene oxide.

    摘要翻译: 通过在蒸馏溶液中使用添加剂回收环氧丙烷,导致副反应受抑制并减少产物损失。 环氧丙烷通过用分子氧将液相中的乙苯氧化得到含有乙苯氢过氧化物的反应液; 蒸馏反应液,得到乙苯氢过氧化物的浓溶液; 进一步将浓缩溶液与丙烯混合并反应,得到含有环氧丙烷的混合溶液; 并蒸馏混合溶液以分离和回收环氧丙烷。 将选自具有2至4个碳原子的脂肪族饱和醇,烯丙醇,6或7个碳原子的饱和脂族烃,苯,醚,酮,腈,胺,吡啶,二胺和氨基醇中的至少一种化合物加入到混合 蒸馏溶液,其量为每100重量份环氧丙烷0.01-100重量份。

    Method for producing chlorine
    9.
    发明授权
    Method for producing chlorine 有权
    生产氯的方法

    公开(公告)号:US06977066B1

    公开(公告)日:2005-12-20

    申请号:US09889625

    申请日:2000-01-19

    IPC分类号: C01B7/04

    CPC分类号: C01B7/04 Y02P20/228

    摘要: A process for producing chlorine comprising the step of oxidizing hydrogen chloride in a gas containing hydrogen chloride with a gas containing oxygen in the presence of a catalyst, wherein the oxidation of hydrogen chloride is carried out in at least two reaction zones each comprising a catalyst-packed layer, which are arranged in series, and a temperature in at least one of said reaction zones is controlled with a heat exchange system. According to this process, the stable activity of the catalyst is maintained and chlorine can be stably obtained at a high yield since the excessive hot spot in the catalyst-packed layer is suppressed and the catalyst-packed layer can be effectively used.

    摘要翻译: 一种生产氯的方法,包括在催化剂存在下,用含有氧的气体在含有氯化氢的气体中氧化氯化氢的步骤,其中氯化氢的氧化在至少两个反应区进行,每个反应区包含催化剂 - 堆积层,其串联布置,并且至少一个所述反应区域中的温度由热交换系统控制。 根据该方法,由于催化剂填充层中的过多的热点被抑制并且可以有效地使用催化剂填充层,所以保持催化剂的稳定的活性并能以高的产率稳定地获得氯。