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    • 1. 发明申请
    • Process for the Preparation of a Dicarboxylic Acid
    • 二羧酸的制备方法
    • US20080269459A1
    • 2008-10-30
    • US11884113
    • 2006-02-10
    • Eit DrentRene ErnstWillem Wabe JagerCornelia Alida Krom
    • Eit DrentRene ErnstWillem Wabe JagerCornelia Alida Krom
    • C07C57/13C08G73/00
    • C07C51/14B01J31/24B01J2531/824C07C57/03C07C55/14
    • A process for the preparation of a saturated dicarboxylic acid, comprising the steps of (a) contacting a conjugated diene with carbon monoxide and water to obtain a mixture containing an ethylenically unsaturated acid product and one or more reversible adducts of the conjugated diene and the ethylenically unsaturated acid; and (b) reacting the ethylenically unsaturated acid product further with carbon monoxide and water to obtain the dicarboxylic acid, wherein step (a) and (b) are performed in the presence of a catalyst system including a source of palladium, a source of an anion and a bidentate phosphine ligand, and wherein in step (a) the water concentration is maintained at a range of from 0.001 to less than 3% by weight of water, calculated on the overall weight of the liquid reaction medium, and wherein in step (b) the water concentration is maintained at a range of from 3% to 50% by weight of water, calculated on the overall weight of the liquid reaction medium.
    • 一种制备饱和二羧酸的方法,包括以下步骤:(a)使共轭二烯与一氧化碳和水接触,以获得含有烯属不饱和酸产物和一种或多种可共轭二烯的可逆加合物和烯键式 不饱和酸 和(b)使烯属不饱和酸产物进一步与一氧化碳和水反应以获得二羧酸,其中步骤(a)和(b)在催化剂体系存在下进行,所述催化剂体系包括钯源, 阴离子和二齿膦配体,并且其中在步骤(a)中,水浓度保持在0.001至小于3重量%的水的范围内,以液体反应介质的总重计算,并且其中在步骤 (b)根据液体反应介质的总重量,水浓度保持在3重量%至50重量%的水的范围内。
    • 2. 发明申请
    • Process for the Carbonylation of a Conjugated Diene
    • 共轭二烯的羰基化方法
    • US20080269433A1
    • 2008-10-30
    • US11884107
    • 2006-02-10
    • Eit DrentRene ErnstWillem Wabe JagerCornelia Alida KromTimothy Michael Nisbet
    • Eit DrentRene ErnstWillem Wabe JagerCornelia Alida KromTimothy Michael Nisbet
    • C08F2/60
    • C07C51/14C07C57/03
    • A process for the carbonylation of a conjugated diene to an ethylenically unsaturated acid, comprising the steps of (a) contacting a conjugated diene with carbon monoxide and water in the presence of a catalyst system including a source of palladium, a source of an anion and a bidentate phosphine ligand, to obtain a mixture comprising an ethylenically unsaturated acid and a reversible diene adduct comprising alkenyl ester of the conjugated diene with the ethylenically unsaturated acid; (b) separating the obtained reaction mixture into a gaseous stream comprising unreacted conjugated diene and carbon monoxide, a first liquid product stream comprising at least part of the ethylenically unsaturated acid and the reversible diene adducts, and a second liquid stream comprising the catalyst system in admixture with the ethylenically unsaturated acid; (c) separating the first liquid product stream obtained in step (b) into a stream comprising the ethylenically unsaturated acid and a stream comprising the reversible diene adducts; and (d) recycling the stream comprising the reversible diene adducts to step (a), or converting the reversible diene adducts back to the conjugated diene and the ethylenically unsaturated acid and recycling the thus obtained conjugated diene to step (a).
    • 一种将共轭二烯羰基化成烯属不饱和酸的方法,包括以下步骤:(a)在包括钯源,阴离子源和/或其盐的催化剂体系存在下使共轭二烯与一氧化碳和水接触, 二次膦配体,以获得包含烯键式不饱和酸和包含共轭二烯烯基酯与烯键式不饱和酸的可逆二烯加合物的混合物; (b)将获得的反应混合物分离成包含未反应的共轭二烯和一氧化碳的气流,包含至少部分烯键式不饱和酸和可逆二烯加合物的第一液体产物流和包含催化剂体系的第二液体流 与烯属不饱和酸的混合物; (c)将步骤(b)中获得的第一液体产物流分离成包含烯属不饱和酸的物流和包含可逆二烯加成物的物流; 和(d)将包含可逆二烯加合物的料流再循环到步骤(a)中,或将可逆二烯加合物转化回共轭二烯和烯属不饱和酸,并将由此得到的共轭二烯再循环到步骤(a)。
    • 4. 发明申请
    • Process for the Carbonylation of a Conjugated Diene to a Dicarboxylic Acid
    • 共轭二烯羰基化成二羧酸的方法
    • US20080269520A1
    • 2008-10-30
    • US11884103
    • 2006-02-10
    • Eit DrentRene ErnstWillem Wabe JagerCornelia Alida KromTimothy Michael Nisbet
    • Eit DrentRene ErnstWillem Wabe JagerCornelia Alida KromTimothy Michael Nisbet
    • C07C51/14
    • C07C51/14C07C55/14
    • A process for the carbonylation of a conjugated diene to a dicarboxylic acid, comprising the steps of (a) contacting a conjugated diene with carbon monoxide and water in the presence of a catalyst system including a source of palladium, a source of an anion and a bidentate phosphine ligand, to obtain a mixture comprising an ethylenically unsaturated acid and reversible diene adducts; (b) separating the obtained reaction mixture into a gaseous stream comprising unreacted conjugated diene and carbon monoxide, a first normally liquid stream comprising at least part of the ethylenically unsaturated acid and the reversible diene adducts, and a second normally liquid stream comprising the catalyst system in admixture with the ethylenically unsaturated acid; (c) recycling the second liquid stream obtained in step (b) to step (a); (d) separating the first liquid product stream obtained in step (b) into a stream comprising the ethylenically unsaturated acid and a stream comprising the reversible diene adducts; and (e) contacting the stream comprising the ethylenically unsaturated acid obtained in step (d) with carbon monoxide and water in the presence of a second catalyst system including a source of palladium, a source of an anion and a bidentate phosphine ligand.
    • 一种将共轭二烯羰基化成二羧酸的方法,包括以下步骤:(a)在包括钯源,阴离子源和阴离子的催化剂体系的存在下使共轭二烯与一氧化碳和水接触 二次膦配体,以获得包含烯属不饱和酸和可逆二烯加成物的混合物; (b)将获得的反应混合物分离成包含未反应的共轭二烯和一氧化碳的气流,包含至少部分烯属不饱和酸和可逆二烯加合物的第一常规液体流,以及包含催化剂体系的第二常规液流 与烯属不饱和酸的混合物; (c)将步骤(b)中获得的第二液体流循环到步骤(a); (d)将步骤(b)中获得的第一液体产物流分离成包含烯属不饱和酸的物流和包含可逆二烯加成物的物流; 和(e)在包含钯源,阴离子源和二齿膦配体的第二催化剂体系的存在下,将包含步骤(d)中获得的烯属不饱和酸的物流与一氧化碳和水接触。