Continuous preparation of alkenyl compounds
    132.
    发明授权
    Continuous preparation of alkenyl compounds 有权
    连续制备烯基化合物

    公开(公告)号:US06794546B2

    公开(公告)日:2004-09-21

    申请号:US10309178

    申请日:2002-12-04

    IPC分类号: C07C4101

    摘要: A continuous process for the preparation of O—, S— and N-alkenyl compounds by reaction of the corresponding OH, SH or NH compound with an acetylene in the liquid phase in the presence of basic alkali or alkaline earth metal compounds at from 40 to 300° C. and from 0.11 to 5 MPa absolute comprises continuously feeding the corresponding OH, SH or NH compound and the acetylene and operating at a conversion of the corresponding OH, SH or NH compound of ≧90%.

    摘要翻译: 在碱性碱金属或碱土金属化合物存在下,通过相应的OH,SH或NH化合物与乙炔在液相中的反应制备O-,S-和N-烯基化合物的连续方法, 300℃和0.11-5MPa绝对值包括连续地供给相应的OH,SH或NH化合物和乙炔,并在≥90%的相应的OH,SH或NH化合物的转化下操作。

    Method for producing N-alkenyl amides
    135.
    发明授权
    Method for producing N-alkenyl amides 失效
    制备N-烯基酰胺的方法

    公开(公告)号:US06624303B2

    公开(公告)日:2003-09-23

    申请号:US10168213

    申请日:2002-06-19

    IPC分类号: C07D22310

    摘要: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst compounds of the general formulae (Ia) and/or (Ib) R1O—(CH2CH2CH2CH2O)n—H  (Ia): R1O—(CH2CH2CH2CH2O)n—R2,  (Ib): where n is 1, 2 or 3 and R1 and R2 are independently C1- to C6-alkyl or C2- to C6-alkenyl, or together a butenyl unit.

    摘要翻译: 在碱性碱金属化合物和助催化剂存在下,通过使相应的NH-酰胺与乙炔在液相中反应来制备N-烯基酰胺的方法包括使用通式(Ia)和/或 (Ib)其中n为1,2或3,R 1和R 2独立地为C 1 -C 6 - 烷基或C 2 -C 6 - 烯基,或一起为丁烯基单元。

    Purification of alkenyl compounds
    136.
    发明授权
    Purification of alkenyl compounds 失效
    链烯基化合物的纯化

    公开(公告)号:US06384216B1

    公开(公告)日:2002-05-07

    申请号:US09924475

    申请日:2001-08-09

    IPC分类号: C07C20984

    摘要: A process for purifying alkenyl compounds having a divalent or trivalent heteroatom in the &agr;-position relative to the double bond by distillation comprises carrying out at least two distillations in which the purified alkenyl compounds are obtained from the gas phase by condensation, where the time between the first distillation after the synthesis of the alkenyl compounds and at least one further distillation is at least one day and the purified alkenyl compounds have an APHA color number of

    摘要翻译: 通过蒸馏纯化在相对于双键的α位具有二价或三价杂原子的烯基化合物的方法包括进行至少两次蒸馏,其中通过冷凝从气相中获得纯化的链烯基化合物,其中, 在合成烯基化合物之后的第一次蒸馏和至少一次进一步的蒸馏是至少一天,并且纯化的烯基化合物的APHA颜色数目<30。

    Hydrogenation of aldehydes
    137.
    发明授权
    Hydrogenation of aldehydes 失效
    醛的氢化

    公开(公告)号:US06350923B1

    公开(公告)日:2002-02-26

    申请号:US09472798

    申请日:1999-12-28

    IPC分类号: C07C29141

    CPC分类号: C07C29/141 C07C31/20

    摘要: A dialdehyde, trialdehyde or tetraldehyde or at least two thereof as aldehyde are hydrogenated by bringing into contact at least: the aldehyde; a catalyst comprising at least one metal selected from the group consisting of nickel, cobalt and copper in chemically bound and/or elemental form; hydrogen; at a gas pressure in the range from 5 to 350 bar and a temperature in the range from 40 to 300° C.

    摘要翻译: 二醛,戊醛或四醛或其至少两个作为醛被氢化,至少与醛接触:包含至少一种选自镍,钴和铜的化学结合和/或元素的金属的催化剂 形式;氢气;在5至350巴的气体压力和40至300℃的温度范围内。

    Method for separating maleic anhydride from maleic anhydride-containing mixtures by stripping
    138.
    发明授权
    Method for separating maleic anhydride from maleic anhydride-containing mixtures by stripping 失效
    通过汽提从马来酸酐混合物中分离马来酸酐的方法

    公开(公告)号:US06329532B1

    公开(公告)日:2001-12-11

    申请号:US09622172

    申请日:2000-08-14

    IPC分类号: C07D30736

    摘要: The invention relates to a process for the separation of maleic anhydride from the maleic anhydride-containing reactor offgases from the preparation of maleic anhydride by the oxidation of hydrocarbons, in which this gas stream is brought into contact with a high-boiling, inert absorbent for maleic anhydride and maleic anhydride is separated from the resultant liquid absorbate phase by vapor stripping, where the stripping agent used is an alcohol, and at least some of the maleic anhydride is reacted with the alcohol to give the ester.

    摘要翻译: 本发明涉及一种通过烃的氧化将马来酸酐与马来酸酐反应器脱附从马来酸酐的制备中分离的方法,其中该气流与高沸点惰性吸收剂接触, 马来酸酐和马来酸酐通过蒸汽汽提从所得的液体吸收相分离,其中所用的汽提剂是醇,并且至少一些马来酸酐与醇反应得到酯。

    Preparation of n-butyraldehyde and/or n-butanol
    139.
    发明授权
    Preparation of n-butyraldehyde and/or n-butanol 失效
    正丁醛和/或正丁醇的制备

    公开(公告)号:US5705707A

    公开(公告)日:1998-01-06

    申请号:US676185

    申请日:1996-07-12

    摘要: A process for the preparation of n-butyraldehyde and/or n-butanol, wherein a) 1,3-butadiene is caused to react with an alcohol of the formula I ROH I, to form a mixture of adducts of the formulas II ##STR1## and III ##STR2## b) the adduct III is isomerized to the adduct II, c) the adduct II is isomerized in the presence of a homogeneous or heterogeneous transition metal element catalyst to form the enol ether of the formula IV ##STR3## and d) n-butyraldehyde and/or n-butanol is/are produced from this ether IV by the reaction thereof with hydrogen and water or water only in the presence of a homogeneous or heterogeneous catalyst.

    摘要翻译: PCT No.PCT / EP94 / 00114 Sec。 371日期:1996年7月12日 102(e)日期1996年7月12日PCT提交1995年1月12日PCT公布。 公开号WO95 / 19334 日期1995年7月20日一种用于制备正丁醛和/或正丁醇的方法,其中使a)1,3-丁二烯与式IROHI的醇反应,形成下式的加合物的混合物 II)III和III IIIa)b)加合物III异构化为加合物II,c)加合物II在均相或不均匀的过渡金属元素催化剂的存在下异构化以形成式 IV和d)只有在均相或多相催化剂的存在下,通过与氢和水或水的反应,由该醚IV产生正丁醛和/或正丁醇。

    Mixtures of itaconic acid or itaconic acid derivatives and primary amines for producing 1,3- and 1,4-alkyl methyl pyrrolidones
    140.
    发明授权
    Mixtures of itaconic acid or itaconic acid derivatives and primary amines for producing 1,3- and 1,4-alkyl methyl pyrrolidones 有权
    衣康酸或衣康酸衍生物和伯胺的混合物,用于制备1,3-和1,4-烷基甲基吡咯烷酮

    公开(公告)号:US08796472B2

    公开(公告)日:2014-08-05

    申请号:US13132785

    申请日:2009-11-24

    IPC分类号: C07D207/267 B01D53/14

    摘要: The present invention relates to a mixture comprising itaconic acid or an itaconic acid derivative and a primary amine of the formula (I) R—NH2  (I) where the molar ratio of primary amine to itaconic acid or the itaconic acid derivative is in the range from 0.5:1 to 20:1, wherein the mixture comprises 50 mole percent or less of 4-carboxypyrrolidones of the formula (II), derivatives of the 4-carboxypyrrolidones of the formula (II) and 4-carbamidopyrrolidones of the formula (III) based on the itaconic acid used or the itaconic acid derivative used and in which R is a linear or branched saturated aliphatic radical having 1 to 24 carbon atoms or a saturated cycloaliphatic radical having 3 to 24 carbon atoms. The invention further provides for the use of the inventive mixtures for preparing 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones, and also a process for preparing 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones.In addition, the present invention relates to mixtures comprising 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones and 1,3-alkylmethylpyrrolidines, where the proportion of 1,3-alkylmethylpyrrolidines is in the range from 10 to 10 000 ppm, and to mixtures comprising 1,3-alkylmethylpyrrolidone and 1,4-alkylmethylpyrrolidone, wherein the molar ratio of 1,3-alkylmethylpyrrolidone to 1,4-alkylmethylpyrrolidone is in the range from 1:1 to 10:1.

    摘要翻译: 本发明涉及包含衣康酸或衣康酸衍生物和伯胺与衣康酸衍生物的摩尔比在式(I)R-NH 2(I)中的伯胺的混合物, 其中所述混合物包含50摩尔%或更少的式(II)的4-羧基吡咯烷酮,式(II)的4-羧基吡咯烷酮的衍生物和式(III)的4-氨基甲酰基吡咯烷酮 ),其中R是具有1至24个碳原子的直链或支链饱和脂族基团或具有3至24个碳原子的饱和脂环族基团。 本发明进一步提供本发明混合物用于制备1,3-烷基甲基吡咯烷酮和/或1,4-烷基甲基吡咯烷酮的用途,以及制备1,3-烷基甲基吡咯烷酮和/或1,4-烷基甲基吡咯烷酮的方法。 此外,本发明涉及包含1,3-烷基甲基吡咯烷酮和/或1,4-烷基甲基吡咯烷酮和1,3-烷基甲基吡咯烷的混合物,其中1,3-烷基甲基吡咯烷的比例在10至10000ppm的范围内, 以及包含1,3-烷基甲基吡咯烷酮和1,4-烷基甲基吡咯烷酮的混合物,其中1,3-烷基甲基吡咯烷酮与1,4-烷基甲基吡咯烷酮的摩尔比在1:1至10:1的范围内。