Method for producing acrolein and/or acrylic acid
    34.
    发明授权
    Method for producing acrolein and/or acrylic acid 有权
    制备丙烯醛和/或丙烯酸的方法

    公开(公告)号:US07321058B2

    公开(公告)日:2008-01-22

    申请号:US10297579

    申请日:2001-06-13

    IPC分类号: C07C51/16 C07C51/42

    摘要: Acrolein and/or acrylic acid are prepared from propane and/or propene by a process comprising the following steps: (a) separation of propane and/or propene from a propane- and/or propene-containing gas mixture by absorption in an absorbent, (b) separation of the propane and/or propene from the absorbent to give a gas B and (c) use of the gas B obtained in stage (b) for an oxidation of propane and/or propene to acrolein and/or acrylic acid, no heterogeneously catalyzed dehydrogenation of propane without supply of oxygen being carried out between steps (b) and (c).

    摘要翻译: 通过包括以下步骤的方法由丙烷和/或丙烯制备丙烯醛和/或丙烯酸:(a)通过吸收吸收剂中的丙烷和/或丙烯的气体混合物分离丙烷和/或丙烯, (b)从吸收剂中分离丙烷和/或丙烯以产生气体B,和(c)使用阶段(b)中获得的气体B将丙烷和/或丙烯氧化成丙烯醛和/或丙烯酸 在步骤(b)和(c)之间不进行不供应氧气的丙烷的异质催化脱氢。

    Continuous method for the production of polyamides
    35.
    发明申请
    Continuous method for the production of polyamides 有权
    连续生产聚酰胺的方法

    公开(公告)号:US20070161774A1

    公开(公告)日:2007-07-12

    申请号:US10588810

    申请日:2005-02-08

    IPC分类号: C08G69/08

    摘要: A continuous process for producing polyamides, their oligomers or mixtures thereof, if appropriate with further reaction products, comprises reaction of aminonitriles or dinitriles and diamines or mixtures thereof, if appropriate together with further polyamide-forming monomers and/or oligomers, with an aqueous medium composed of aqueous monomer and oligomer extracts obtained from polyamide production by extraction of the polymer with water in a reactor which has a vertical longitudinal axis and through which there is a flow substantially in the longitudinal direction wherein water and/or the aqueous medium are introduced into the reactor at two or more different locations along the vertical longitudinal axis, wherein the aqueous medium is introduced at one or more locations.

    摘要翻译: 生产聚酰胺,其低聚物或其混合物的连续方法(如果适用的话)与其它反应产物一起包括氨基腈或二腈和二胺或其混合物如果合适地与另外的形成聚酰胺的单体和/或低聚物一起与水性介质 由具有垂直纵轴的反应器中用水萃取聚合物的聚合物制备得到的含水单体和低聚物提取物组成,并且通过该单体和基本上沿纵向的流动,其中水和/或水性介质被引入 所述反应器沿着所述垂直纵向轴线的两个或更多个不同位置,其中所述水性介质在一个或多个位置被引入。

    Method for producing N-phosphonomethylglycine
    36.
    发明授权
    Method for producing N-phosphonomethylglycine 失效
    N-膦酰基甲基甘氨酸的制备方法

    公开(公告)号:US07145034B2

    公开(公告)日:2006-12-05

    申请号:US10481579

    申请日:2002-06-21

    IPC分类号: C07F9/22 C07F9/28

    CPC分类号: C07F9/4093 C07F9/3813

    摘要: The invention relates to a process for preparing N-phosphono-methylglycine by reacting a hexahydrotriazine compound with a triacyl phosphite in an organic solvent, hydrolyzing the resulting phosphono compound after prior extraction into an aqueous phase and separation from the organic phase. The process avoids decomposition of the organic solvent during hydrolysis.

    摘要翻译: 本发明涉及通过在有机溶剂中使六氢三嗪化合物与亚磷酸三辛酯反应制备N-膦酰基 - 甲基甘氨酸的方法,在事先将其萃取到水相中并将其与有机相分离之后水解所得的膦酰基化合物。 该方法避免了水解期间有机溶剂的分解。

    Method for producing alkyl aromatic compounds
    37.
    发明申请
    Method for producing alkyl aromatic compounds 失效
    烷基芳族化合物的制备方法

    公开(公告)号:US20060241328A1

    公开(公告)日:2006-10-26

    申请号:US10552434

    申请日:2004-04-14

    IPC分类号: C07C2/64

    摘要: In a process for the preparation of alkylaromatic compounds by reacting C3-30-olefins, or alcohols from which C3-30-olefins are formed under the reaction conditions, with an aromatic hydrocarbon in the presence of an alkylation catalyst, the reaction is carried out in a reactor cascade of at least two reactors, where each of the reactors comprises the alkylation catalyst, at least 80% of the aromatic hydrocarbon are fed into the first reactor of the reactor cascade, and at least 40% of the olefins are intermediately fed in after the first reactor.

    摘要翻译: 在制备烷基芳族化合物的方法中,通过使C 3-30 - 烯烃或在反应条件下形成C 3-30 - α-烯烃的醇与式 在烷基化催化剂存在下的芳族烃,反应在至少两个反应器的反应器级联中进行,其中每个反应器包含烷基化催化剂,将至少80%的芳烃加入第一反应器 的反应器级联,并且至少40%的烯烃在第一反应器之后中间进料。

    Method for side-chain alkylation or alkenylation
    38.
    发明授权
    Method for side-chain alkylation or alkenylation 失效
    侧链烷基化或烯基化方法

    公开(公告)号:US06984766B2

    公开(公告)日:2006-01-10

    申请号:US10344519

    申请日:2001-08-10

    IPC分类号: C07C2/68

    摘要: In a process for reducing the formation of polymers during side-chain alkylation or side-chain alkenylation of alkylaromatic compounds by reaction with olefins or diolefins in the presence of an alkali metal catalyst followed by distillation in order to isolate the alkylated or alkenylated compound, the alkali metal is present in the catalyst on an inorganic support, and the catalyst is mechanically separated from the reaction mixture after the reaction and before the distillation.

    摘要翻译: 在烷基芳族化合物的侧链烷基化或侧链烯基化反应中,在碱金属催化剂的存在下与烯烃或二烯烃反应,然后蒸馏以分离烷基化或烯基化的化合物,在减少聚合物形成的方法中, 碱金属在催化剂中存在于无机载体上,催化剂在反应后和蒸馏之前与反应混合物机械分离。

    Integrated method for synthesis propylene oxide
    39.
    发明申请
    Integrated method for synthesis propylene oxide 有权
    合成环氧丙烷的综合方法

    公开(公告)号:US20050245751A1

    公开(公告)日:2005-11-03

    申请号:US10526045

    申请日:2003-08-29

    IPC分类号: C07D301/12

    摘要: The present invention relates to an integrated process for the synthesis of propylene oxide, which comprises at least the following steps: (i) dehydrogenation of propane to give a substream T (0) comprising at least propane, propene and hydrogen; (ii) fractionation of the substream T (0) to give at least one gaseous hydrogen-rich substream T (2) and a substream T (1) comprising at least propene and propane; (iii) synthesis of hydrogen peroxide using the substream T (2), giving a substream T (4) which is rich in hydrogen peroxide and a gaseous substream T (6); (iv) fractionation of the substream T (1) to give at least one propane-rich substream T (5) and at least one propene-rich substream T (3); (v) reaction of the at least one substream T (3) with substream T (4) to give propylene oxide.

    摘要翻译: 本发明涉及一种用于合成环氧丙烷的综合方法,其包括至少以下步骤:(i)丙烷脱氢得到至少包含丙烷,丙烯和氢的分支T(O); (ii)分流T(0)以产生至少一个富含气体的气流T(2)和至少包含丙烯和丙烷的子流T(1); (iii)使用子流T(2)合成过氧化氢,得到富含过氧化氢的气流T(4)和气态分支T(6); (iv)分流T(1)以产生至少一个富含丙烷的子流T(5)和至少一个富含丙烯的子流T(3); (v)至少一个子流T(3)与子流T(4)的反应,得到环氧丙烷。

    Method for producing methyl formate
    40.
    发明申请
    Method for producing methyl formate 失效
    甲酸甲酯的生产方法

    公开(公告)号:US20050143598A1

    公开(公告)日:2005-06-30

    申请号:US10511088

    申请日:2003-04-15

    IPC分类号: C07C67/36

    CPC分类号: C07C67/36 C07C69/06

    摘要: The invention relates to a process for the preparation of methyl formate by reacting methanol with carbon monoxide at a pressure of from 0.5 to 10 MPa abs. and a temperature of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the reactor as circulating-gas stream and a mean gas superficial velocity of from 1 to 20 cm/s is set in at least one region of the reactor in which the gas flows essentially in one direction.

    摘要翻译: 本发明涉及一种通过使甲醇与一氧化碳在0.5至10MPa abs的压力下反应制备甲酸甲酯的方法。 在反应器中从作为催化剂的金属醇盐存在下的温度为50-150℃,其中将气流从反应器中排出,夹带的甲酸甲酯通过冷凝从该气流中除去,全部或 一些剩余的气流作为循环气体流返回到反应器,并且在反应器的至少一个区域中设置1至20cm / s的平均气体空气速度,其中气体基本上在一个方向上流动。