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    • 23. 发明授权
    • Process for making 3-pentenenitrile by hydrocyanation of butadiene
    • 通过氢化丁二烯制备3-戊烯腈的方法
    • US07709673B2
    • 2010-05-04
    • US11776922
    • 2007-07-12
    • Thomas FooSigridur S. KristjansdottirRonald J. McKinneyRon Ozer
    • Thomas FooSigridur S. KristjansdottirRonald J. McKinneyRon Ozer
    • C07C253/00
    • C07C253/10C07C255/07
    • The invention provides a continuous process for the production of 3-pentenenitrile comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a butadiene-containing feed, and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Structures I and II, in which all like reference characters have the same meaning, except as further explicitly limited: wherein R1 and R5 are independently selected from the group consisting of C1 to C5 hydrocarbyl, and R2, R3, R4, R6, R7 and R8 are independently selected from the group consisting of H and C1 to C4 hydrocarbyl; and (b) maintaining a residence time in the reaction zone sufficient to convert about 95% or more of the hydrogen cyanide and to produce a reaction mixture comprising 3-pentenenitrile and 2-methyl-3-butenenitrile, wherein the 2-methyl-3-butenenitrile concentration is maintained below about 15 weight percent of the total mass of the reaction mixture.
    • 本发明提供了一种用于生产3-戊烯腈的连续方法,包括:(a)在反应区中与含氰化氢的进料,含丁二烯的进料和催化剂前体组合物接触,其中催化剂前体组合物包含 选自由结构I和II表示的基团的成员中的零价镍和至少一种二齿亚磷酸酯配体,其中所有相似的附图标记具有相同的含义,除了进一步明确限制:其中R1和R5独立地选自 由C1-C5烃基组成的组,R2,R3,R4,R6,R7和R8独立地选自H和C1至C4烃基; 和(b)保持反应区中的停留时间足以转化约95%或更多的氰化氢并产生包含3-戊烯腈和2-甲基-3-丁烯腈的反应混合物,其中2-甲基-3 丁烯腈浓度保持在反应混合物总质量的约15重量%以下。
    • 24. 发明授权
    • Hydrocyanation process with reduced yield losses
    • 氢化过程具有降低的产量损失
    • US07659422B2
    • 2010-02-09
    • US11776954
    • 2007-07-12
    • Thomas FooJames Michael GarnerRon Ozer
    • Thomas FooJames Michael GarnerRon Ozer
    • C07C253/00
    • C07C253/10C07C255/09
    • A hydrocyanation process produces adiponitrile and other dinitriles having six carbon atoms. The process involves forming a reaction mixture in the presence of at least one Lewis acid. The reaction mixture includes ethylenically unsaturated nitriles having five carbon atoms, hydrogen cyanide, and a catalyst precursor composition. The reaction mixture is continuously fed while controlling the overall feed molar ratio of 2-pentenenitriles to all unsaturated nitriles and the overall feed molar ratio of hydrogen cyanide to all unsaturated nitriles. In the reaction product mixture, including adiponitrile, the ratio of the concentration of 2-pentenenitriles to the concentration of 3-pentenenitriles is from about 0.2/1 to about 10/1. Included in the catalyst precursor composition is a zero-valent nickel and at least one bidentate phosphite ligand.
    • 氢化方法生产己二腈和其他具有六个碳原子的二腈。 该方法包括在至少一种路易斯酸存在下形成反应混合物。 反应混合物包括具有五个碳原子的烯属不饱和腈,氰化氢和催化剂前体组合物。 反应混合物连续进料,同时控制2-戊烯腈与所有不饱和腈的总进料摩尔比和氰化氢与所有不饱和腈的总进料摩尔比。 在包括己二腈的反应产物混合物中,2-戊烯腈的浓度与3-戊烯腈的浓度的比例为约0.2 / 1至约10/1。 包括在催化剂前体组合物中的是零价镍和至少一种二齿亚磷酸酯配体。
    • 30. 发明授权
    • Hydrocyanation process with reduced yield losses
    • 氢化过程具有降低的产量损失
    • US07709674B2
    • 2010-05-04
    • US11776968
    • 2007-07-12
    • Thomas FooJames Michael GarnerRon OzerPaul S. Pearlman
    • Thomas FooJames Michael GarnerRon OzerPaul S. Pearlman
    • C07C253/00
    • C07C253/10C07C255/04
    • A hydrocyanation process produces adiponitrile and other dinitriles having six carbon atoms. The process involves forming a reaction mixture in the presence of at least one Lewis acid. The reaction mixture includes ethylenically unsaturated nitrites having five carbon atoms, hydrogen cyanide, and a catalyst precursor compositions. The reaction mixture is continuously fed while controlling the overall feed molar ratio of 2-pentenenitriles to all unsaturated nitriles and the overall feed molar ratio of hydrogen cyanide to all unsaturated nitrites. In the reaction product mixture, including adiponitrile, the ratio of the concentration of 2-pentenenitriles to the concentration of 3-pentenenitriles from about 0.2/1 to about 10/1. Included in the catalyst precursor composition is a zero-valent nickel and at least one multidentate phosphorus-containing ligand. The multidentate phosphorus-containing ligand may be a phosphite, a phosphonite, a phosphinite, a phosphine, and a mixed phosphorus-containing ligand or a combination of such members.
    • 氢化方法生产己二腈和其他具有六个碳原子的二腈。 该方法包括在至少一种路易斯酸存在下形成反应混合物。 反应混合物包括具有五个碳原子的烯属不饱和亚硝酸盐,氰化氢和催化剂前体组合物。 反应混合物连续进料,同时控制2-戊烯腈与所有不饱和腈的总进料摩尔比和氰化氢与所有不饱和亚硝酸酯的总进料摩尔比。 在包括己二腈的反应产物混合物中,2-戊烯腈的浓度与3-戊烯腈的浓度的比例为约0.2 / 1至约10/1。 包括在催化剂前体组合物中的是零价镍和至少一种多齿含磷配体。 多齿含磷配体可以是亚磷酸盐,亚膦酸盐,磷化物,磷化氢和混合的含磷配体或这些成员的组合。