Separation of aliphatic diacids from adipic acid admixtures thereof
    1.
    发明授权
    Separation of aliphatic diacids from adipic acid admixtures thereof 失效
    脂肪族二酸与己二酸的混合物的分离

    公开(公告)号:US5587056A

    公开(公告)日:1996-12-24

    申请号:US490231

    申请日:1995-06-14

    CPC分类号: C07C51/487

    摘要: At least a fraction of at least one branched, saturated aliphatic diacid having 6 carbon atoms, for example 2-methylglutaric acid and/or 2-ethylsuccinic acid and/or dimethylsuccinic acid, is separated from admixtures thereof with adipic acid, by at least partially converting such at least one aliphatic diacid into the corresponding anhydride thereof, and removing the corresponding anhydride or the adipic acid from the medium of conversion/anhydridization, for example by contemporaneous or subsequent distillation, or by crystallization.

    摘要翻译: 至少一部分具有6个碳原子的至少一种支链饱和脂族二酸,例如2-甲基戊二酸和/或2-乙基琥珀酸和/或二甲基琥珀酸,与己二酸的混合物至少部分地分离 将这样的至少一种脂肪族二酸转化成其相应的酸酐,以及例如通过同时或随后的蒸馏或通过结晶从转化/脱水的介质中除去相应的酸酐或己二酸。

    Preparation of unsaturated carboxylic acids by carbonylation of allylic
butenols and/or esters thereof
    2.
    发明授权
    Preparation of unsaturated carboxylic acids by carbonylation of allylic butenols and/or esters thereof 失效
    通过烯丙基丁烯醇和/或其酯的羰基化制备不饱和羧酸

    公开(公告)号:US5380938A

    公开(公告)日:1995-01-10

    申请号:US201020

    申请日:1994-02-24

    CPC分类号: C07C51/12

    摘要: Unsaturated carboxylic acids, e.g., pentenoic acids, are prepared by carbonylating an allylic butenol and/or carboxylate ester thereof with carbon monoxide, in the presence of a catalytically effective amount of an iridium catalyst and an iodinated or brominated promoter therefor, and optionally, a copromoter, notably wherein the promoter/Ir molar ratio ranges from 0.1:1 to 20:1. The final product acids, e.g., 3-pentenoic acid, are themselves readily hydroxycarbonylated, for example, into adipic acid, via reaction with carbon monoxide and water.

    摘要翻译: 不饱和羧酸,例如戊烯酸,通过在催化有效量的铱催化剂和其碘化或溴化促进剂存在下,用一氧化碳羰基化烯丙基丁烯醇和/或其羧酸酯,以及任选地, 共促进剂,特别是其中启动子/ Ir摩尔比为0.1:1至20:1。 最终产物酸,例如3-戊烯酸本身通过与一氧化碳和水反应而容易地被羟基羰基化,例如,转化成己二酸。

    Process for the hydroxycarbonylation of pentenoic acids
    3.
    发明授权
    Process for the hydroxycarbonylation of pentenoic acids 失效
    戊烯酸羟基羰基化方法

    公开(公告)号:US6008408A

    公开(公告)日:1999-12-28

    申请号:US424335

    申请日:1995-07-11

    摘要: The present invention relates to a process for the hydroxycarbonylation of pentenoic acids. By the process, one or a number of pentenoic acids are hydroxycarbonylated to adipic acid, by carbon monoxide and water, in the presence of a catalyst based on iridium and/or rhodium and of at least one iodinated promoter. The reaction mixture obtained is subjected to a refining operation, after having optionally been concentrated, making it possible to separate at least a part of the catalyst. The catalyst thus separated is recycled to an operation for the hydroxycarbonylation of pentenoic acids, of butadiene, or of butadiene derivatives.

    摘要翻译: PCT No.PCT / FR93 / 01028 Sec。 371日期:1995年7月11日 102(e)日期1995年7月11日PCT提交1993年10月19日PCT公布。 公开号WO94 / 08939 日期:1994年4月28日本发明涉及戊烯酸羟基羰基化的方法。 通过该过程,一种或多种戊烯酸通过一氧化碳和水在基于铱和/或铑的催化剂和至少一种碘化促进剂的存在下被羟基羰基化成己二酸。 所获得的反应混合物在任选地浓缩之后进行精制操作,使得可以分离至少一部分催化剂。 将如此分离的催化剂再循环至戊烯酸,丁二烯或丁二烯衍生物的羟基羰基化操作。

    Method for preparing carboxylic acids by carbonylation in the presence
of iridium
    5.
    发明授权
    Method for preparing carboxylic acids by carbonylation in the presence of iridium 失效
    在铱存在下通过羰基化制备羧酸的方法

    公开(公告)号:US5770768A

    公开(公告)日:1998-06-23

    申请号:US817701

    申请日:1997-06-03

    IPC分类号: C07C51/12

    CPC分类号: C07C51/12

    摘要: A method for preparing carboxylic acids by carbonylating a reagent, particularly an alcohol, in the presence of an iridium catalyst. According to the method, the liquid phase reaction is carried out in a first zone in the presence of an iridium catalyst, and the resulting reaction mixture is partially vaporised in a second zone. The vaporised fraction containing the carboxylic acid is later purified and the unvaporised liquid fraction containing the catalyst is recirculated to the first zone. The method is characterised in that said unvaporised fraction is contacted with carbon monoxide in such a way that this compound is not returned to the second zone.

    摘要翻译: PCT No.PCT / FR95 / 01446 Sec。 371日期:1997年6月3日 102(e)日期1997年6月3日PCT 1995年11月3日PCT PCT。 公开号WO96 / 14286 日期1996年5月17日一种在铱催化剂存在下羰基化试剂,特别是醇制备羧酸的方法。 根据该方法,液相反应在铱催化剂存在下在第一区域进行,所得反应混合物在第二区域部分汽化。 随后纯化含有羧酸的蒸发级分,并将含有催化剂的未汽化的液体馏分再循环到第一区。 该方法的特征在于,所述未汽化部分与一氧化碳接触,使得该化合物不会返回到第二区域。

    Process for the preparation of carboxylic acids by carbonylation in the
presence of rhodium
    6.
    发明授权
    Process for the preparation of carboxylic acids by carbonylation in the presence of rhodium 失效
    在铑存在下通过羰基化制备羧酸的方法

    公开(公告)号:US5973197A

    公开(公告)日:1999-10-26

    申请号:US836817

    申请日:1997-04-21

    CPC分类号: C07C51/12

    摘要: A method for preparing carboxylic acids by carbonylating a reagent, particularly an alcohol, in the presence of a rhodium catalyst. According to the method, the liquid phase reaction is carried out in a first zone in the presence of a rhodium catalyst, and the resulting reaction mixture is partially vaporised in a second zone. The vaporised fraction containing the carboxylic acid is later purified and the unvaporised liquid fraction containing the catalyst is recirculated to the first zone. The method is charactracterised in that said unvaporised fraction is contacted with carbon monoxide in such a way that this compound is not returned to the second zone.

    摘要翻译: 一种在铑催化剂存在下羰基化试剂,特别是醇制备羧酸的方法。 根据该方法,在铑催化剂存在下,在第一区域中进行液相反应,所得反应混合物在第二区域部分蒸发。 随后纯化含有羧酸的蒸发级分,并将含有催化剂的未汽化的液体馏分再循环到第一区。 该方法的特征在于,所述未蒸发的级分与一氧化碳接触,使得该化合物不会返回到第二区。

    Preparation of adipic acid by hydrocarboxylation of pentenoic acids
    8.
    发明授权
    Preparation of adipic acid by hydrocarboxylation of pentenoic acids 失效
    通过戊烯酸的氢化羧酸制备己二酸

    公开(公告)号:US5312979A

    公开(公告)日:1994-05-17

    申请号:US88353

    申请日:1993-07-09

    IPC分类号: C07C51/14 C07C55/14

    CPC分类号: C07C55/14 C07C51/14

    摘要: Adipic acid is selectively prepared via hydrocarboxylation of pentenoic acids, by reacting water and carbon monoxide with at least one pentenoic acid, in the presence of a catalytically effective amount of a rhodium-based catalyst and at least one iodinated promoter therefor, at a temperature ranging from 100.degree. to 240.degree. C. and a pressure greater than atmospheric, and wherein (a) such reaction is carried out in the absence of a third reaction solvent and (b) the carbon monoxide partial pressure, measured at 25.degree. C., is less than or equal to 20 bar.

    摘要翻译: 在催化有效量的铑基催化剂和至少一种碘化促进剂的存在下,通过水和一氧化碳与至少一种戊烯酸反应,在温度范围内通过氢过羧酸选择性制备己二酸 100℃至240℃,压力大于大气压,其中(a)该反应在不存在第三反应溶剂的情况下进行,(b)在25℃下测得的一氧化碳分压, 小于或等于20巴。

    Preparation of .beta., .gamma.-unsaturated carboxylic acids
    9.
    发明授权
    Preparation of .beta., .gamma.-unsaturated carboxylic acids 失效
    (BETA),(氨基) - 脲基羧酸的制备

    公开(公告)号:US5081292A

    公开(公告)日:1992-01-14

    申请号:US516737

    申请日:1990-04-30

    CPC分类号: C07C51/12

    摘要: .beta., .gamma.-Unsaturated carboxylic acids, e.g., 3-hexene-1,6-dioic acid, are selectively prepared by carbonylating (with carbon monoxide) an allyl alcohol, e.g., a butenediol, at an elevated temperature and under superatmospheric pressure, in the presence of a catalytically effective amount of a palladium-based catalyst and at least one quaternary onium chloride of one of the Group VB elements nitrogen or phosphorus, such element being tetracoordinated via carbon atoms and with the proviso that such nitrogen atom may be coordinated to two pentavalent phosphorus atoms.

    摘要翻译: β,γ-不饱和羧酸,例如3-己烯-1,6-二酸,通过在升高的温度和超大气压下羰基化(用一氧化碳)烯丙醇,例如丁烯二醇来选择性地制备, 存在催化有效量的钯基催化剂和至少一种VB族元素氮或磷之一的季铵氯化物,该元素通过碳原子四配位,条件是这样的氮原子可以配位到 两个五价磷原子。

    Preparation of carboxylic acids or related esters by carbonylation in
the presence of iridium
    10.
    发明授权
    Preparation of carboxylic acids or related esters by carbonylation in the presence of iridium 失效
    在铱存在下通过羰基化制备羧酸或相关酯

    公开(公告)号:US5883289A

    公开(公告)日:1999-03-16

    申请号:US809706

    申请日:1997-05-14

    CPC分类号: C07C51/12 C07C67/36

    摘要: A method for preparing carboxylic acids including (n+1) carbon atoms, or the related esters, by liquid phase carbonylation of an alcohol including (n) carbon atoms, in the presence of a uniform catalytic system based on at least one iridium compound and at least one halogenated promoter. In particular, the method is characterised in that the content of ester related to said carboxylic acid and alcohol is kept between 15 and 35% in the medium during the reaction, while the halogenated promoter content is kept between 10 and 20%, and the partial carbon monoxide pressure is 40-200 bar. Said method enables both the rate of carbonylation and the acetic acid selectivity to be increased.

    摘要翻译: PCT No.PCT / FR95 / 01283 Sec。 371日期1997年5月14日 102(e)日期1997年5月14日PCT提交1995年10月4日PCT公布。 公开号WO96 / 11179 日期:1996年4月18日在含有(n)碳原子的醇的液相羰基化的基础上,在基于 至少一种铱化合物和至少一种卤化促进剂。 特别地,该方法的特征在于,在反应过程中,介质中与所述羧酸和醇相关的酯含量保持在15至35%之间,而卤代促进剂含量保持在10至20%之间,部分 一氧化碳压力为40-200巴。 所述方法能够提高羰基化速率和乙酸选择性。