Method for making aqueous solutions of (meth)acryloyloxyethylbenzyldimethylammonium chlorides
    1.
    发明授权
    Method for making aqueous solutions of (meth)acryloyloxyethylbenzyldimethylammonium chlorides 失效
    制备(甲基)丙烯酰氧基乙基苄基二甲基氯化铵水溶液的方法

    公开(公告)号:US07084296B2

    公开(公告)日:2006-08-01

    申请号:US10344322

    申请日:2001-08-07

    IPC分类号: C07C69/52

    CPC分类号: C07C213/08 C07C219/08

    摘要: This process for the manufacture of an aqueous solution of (meth)acryloyloxyethylbenzyl-dimethylammonium chloride ((M)ADAMQUAT BZ) by reaction, in the presence of water, of N,N-dimethylaminoethyl (meth)acrylate ((M)ADAME) with benzyl chloride is characterized in that the reaction is carried out continuously in a reactor operating according to the perfectly stirred reactor technology.

    摘要翻译: 通过在水存在下,将N,N-二甲基氨基乙基(甲基)丙烯酸酯((M)ADAME)与(甲基)丙烯酰氧基乙基苄基 - 二甲基氯化铵((M)ADAMQUAT BZ)的水溶液 苄基氯的特征在于反应在根据完全搅拌的反应器技术操作的反应器中连续进行。

    Process for the manufacture of aqueous solutions of unsaturated quaternary ammonium salts
    2.
    发明授权
    Process for the manufacture of aqueous solutions of unsaturated quaternary ammonium salts 失效
    制备不饱和季铵盐水溶液的方法

    公开(公告)号:US06683203B2

    公开(公告)日:2004-01-27

    申请号:US10132690

    申请日:2002-04-26

    IPC分类号: C07C6952

    CPC分类号: C07C213/08 C07C219/08

    摘要: This process for the manufacture of an aqueous solution of the unsaturated quaternary ammonium salt corresponding to the formula (I), by reaction, in the presence of water, of N,N-dimethylaminoethyl acrylate (DAMEA) with a quaternizing agent of formula (II), is characterized in that the said reaction is carried out continuously in a rotating disc agitated column, with introduction of the quaternizing agent in the column bottom and introduction of the DAMEA and the water in the column top, the said reaction being carried out at a temperature of 35 to 60° C. and under a pressure of 10 to 20 bar.  R—Cl  (II) R=methyl or benzyl radical.

    摘要翻译: 通过在水存在下,将N,N-二甲基氨基乙基丙烯酸酯(DAMEA)与式(II)的季铵化剂反应制备对应于式(I)的不饱和季铵盐的水溶液的该方法 ),其特征在于所述反应在旋转圆盘搅拌柱中连续进行,并将季铵化合物引入塔底并将DAMEA和水引入塔顶,所述反应在 温度为35至60℃,压力为10至20巴.R =甲基或苄基。

    Removal of nitrous oxide from gaseous effluents comprised thereof
    3.
    发明授权
    Removal of nitrous oxide from gaseous effluents comprised thereof 失效
    从其组成的气体流出物中除去一氧化二氮

    公开(公告)号:US5582810A

    公开(公告)日:1996-12-10

    申请号:US240487

    申请日:1994-05-10

    申请人: Serge Tretjak

    发明人: Serge Tretjak

    摘要: The N.sub.2 O values in gaseous effluents, notably those produced in various organic syntheses entailing nitric acid oxidation (for example the industrial scale production of adipic acid, of glyoxal and of glyoxylic acid), are catalytically decomposed at elevated temperatures over H-mordenite and ammonium mordenite catalysts, preferably the ammonium mordenites that have been exchanged with iron, cobalt or bismuth.

    摘要翻译: 气态排放物中的N2O值,特别是在各种有机合成中产生的硝酸氧化(例如己二酸的乙二醛和乙醛酸的工业规模生产)中的N2O值在升高的温度下在H-丝光沸石和铵丝光沸石上催化分解 催化剂,优选已经与铁,钴或铋交换的丝光沸石。

    METHOD AND DEVICE FOR PRODUCING ALKENE DERIVATIVES
    4.
    发明申请
    METHOD AND DEVICE FOR PRODUCING ALKENE DERIVATIVES 审中-公开
    用于生产烯烃衍生物的方法和装置

    公开(公告)号:US20120277464A1

    公开(公告)日:2012-11-01

    申请号:US13505325

    申请日:2010-10-27

    IPC分类号: C07C51/25 B01J19/00 C07C45/35

    摘要: The invention relates to a method for producing a flow containing at least one alkene derivative, including the following steps: a step a) of reacting a flow containing one or more alkenes and one or more alkanes—the ratio of said alkanes to said alkenes being at least 1 by volume—with a flow containing mainly oxygen, in order to obtain at least one converted flow containing at least said alkene derivative; a step b) of separating the converted flow produced in step a) into at least said flow containing at least said alkene derivative and a residual flow containing mainly one or more hydrocarbons and one or more inert compounds; and a step c) of separating all or a portion of said residual flow by means of permeation into at least one first flow containing mainly one or more inert compounds and a second flow containing mainly one or more hydrocarbons.

    摘要翻译: 本发明涉及一种生产含有至少一种烯烃衍生物的流的方法,包括以下步骤:a)使含有一种或多种烯烃和一种或多种烷烃的流动反应,所述烷烃与所述烯烃的比例为 至少1体积%,主要含有氧的流,以获得至少一个含有至少所述烯烃衍生物的转化流; 步骤b)将步骤a)中产生的转化流分离成至少含有至少所述烯烃衍生物的流和包含主要一种或多种烃和一种或多种惰性化合物的残余流; 以及步骤c)通过渗透将所有或一部分所述残余流分离成至少一个主要包含一种或多种惰性化合物的主要流体和主要含有一种或多种烃的第二流。

    Method for lactic acid oligomerization
    5.
    发明申请
    Method for lactic acid oligomerization 审中-公开
    乳酸低聚方法

    公开(公告)号:US20050080201A1

    公开(公告)日:2005-04-14

    申请号:US10503375

    申请日:2003-01-31

    摘要: The invention concerns a method for continuously producing a dimmer-rich and tri-mer rich oligomeric lactic acid composition, starting with a lactic composition by eliminating water from said lactic acid composition. The invention is characterized in that it consists in: carrying out said elimination in an adiabatic reactor provided with a recycling loop, continuously introducing a lactic acid composition in a circulating starter reaction medium being brought to a temperature ranging between 120° C. and 180° C. and in eliminating the water vapour form.

    摘要翻译: 本发明涉及连续生产富二醇和三聚体低聚乳酸组合物的方法,其通过从所述乳酸组合物中除去水由乳酸组合物开始。 本发明的特征在于:在具有循环回路的绝热反应器中进行所述消除,将循环起始反应介质中的乳酸组合物连续引入温度范围为120℃至180℃ 并消除水蒸气形式。

    METHOD AND DEVICE FOR SEPARATING GASEOUS MIXTURES BY MEANS OF PERMEATION
    6.
    发明申请
    METHOD AND DEVICE FOR SEPARATING GASEOUS MIXTURES BY MEANS OF PERMEATION 审中-公开
    通过渗透分离气体混合物的方法和装置

    公开(公告)号:US20120210870A1

    公开(公告)日:2012-08-23

    申请号:US13505299

    申请日:2010-10-27

    IPC分类号: B01D50/00 B01D53/14 B01D53/22

    摘要: The invention relates to a method for purifying a specific gas stream containing one or more components to be recovered, one or more impurities to be eliminated and one or more poisons, for a unit for separation by means of permeation, including the following steps: a) in a unit for separation by means of absorption, separate from said unit for separation by means of permeation, the specific gas stream is placed in contact with one or more liquid solvents suitable and intended for selectively absorbing said poisons in order to obtain at least one first gas stream depleted of said poisons and a second liquid stream; and b) said first gas stream produced in step a) is separated in said unit for separation by means of permeation, at a specific absolute pressure P, into at least one third gas stream depleted of impurities and a fourth stream; the separation performed in step a) being carried out at an absolute pressure of between 50% and 200% of said specific absolute pressure P.

    摘要翻译: 本发明涉及一种用于纯化特定气流的方法,所述特定气流含有待回收的一种或多种组分,待消除的一种或多种杂质和一种或多种毒物,用于通过渗透分离的单元,包括以下步骤: )在用于通过吸收分离的单元中,与所述单元分离以通过渗透分离,将特定气流置于与一种或多种适于选择性吸收所述毒素的液体溶剂接触以便至少获得 所述毒液中的第一气流和第二液体流; 和b)在步骤a)中产生的所述第一气流在所述单元中以特定绝对压力P通过渗透分离成至少一个贫化杂质和第四料流的第三气流; 在步骤a)中进行的分离在所述特定绝对压力P的50%至200%的绝对压力下进行。

    Method for preparing (meth)acrylic anhydride
    7.
    发明授权
    Method for preparing (meth)acrylic anhydride 失效
    制备(甲基)丙烯酸酐的方法

    公开(公告)号:US08097757B2

    公开(公告)日:2012-01-17

    申请号:US12863033

    申请日:2009-01-27

    IPC分类号: C07C51/56 C07C53/00

    摘要: The present invention relates to an improved method for preparing (meth)acrylic anhydride (A(M)A2O) by transanhydrification between (meth)acrylic acid and acetic anhydride in the presence of at least one polymerization inhibitor, in which reaction to the point of partial conversion of the reagents is carried out, followed by continuous distillation. With the method according to the invention, it is possible to produce I1A(M)A2O of very high purity under improved productivity conditions compared to existing methods while eliminating problems of reactor fouling.

    摘要翻译: 本发明涉及通过(甲基)丙烯酸和乙酸酐在至少一种聚合抑制剂的存在下的跨氢化制备(甲基)丙烯酸酐(A(M)A 2 O)的改进方法, 进行试剂的部分转化,接着进行连续蒸馏。 利用根据本发明的方法,与现有方法相比,在提高的生产率条件下可以产生非常高纯度的I1A(M)A2O,同时消除反应堆结垢的问题。

    METHOD FOR PREPARING (METH)ACRYLIC ANHYDRIDE
    8.
    发明申请
    METHOD FOR PREPARING (METH)ACRYLIC ANHYDRIDE 失效
    制备(甲基)丙烯酰胺的方法

    公开(公告)号:US20100317892A1

    公开(公告)日:2010-12-16

    申请号:US12863033

    申请日:2009-01-27

    IPC分类号: C07C51/56

    摘要: The present invention relates to an improved method for preparing (meth)acrylic anhydride (A(M)A2O) by transanhydrification between (meth)acrylic acid and acetic anhydride in the presence of at least one polymerization inhibitor, in which reaction to the point of partial conversion of the reagents is carried out, followed by continuous distillation. With the method according to the invention, it is possible to produce I1A(M)A2O of very high purity under improved productivity conditions compared to existing methods while eliminating problems of reactor fouling.

    摘要翻译: 本发明涉及通过(甲基)丙烯酸和乙酸酐在至少一种聚合抑制剂的存在下的跨氢化制备(甲基)丙烯酸酐(A(M)A 2 O)的改进方法, 进行试剂的部分转化,接着进行连续蒸馏。 利用根据本发明的方法,与现有方法相比,在提高的生产率条件下可以产生非常高纯度的I1A(M)A2O,同时消除反应堆结垢的问题。

    Continuous ethyl lactate preparation method
    9.
    发明申请
    Continuous ethyl lactate preparation method 审中-公开
    连续乳酸乙酯制备方法

    公开(公告)号:US20060041165A1

    公开(公告)日:2006-02-23

    申请号:US10537422

    申请日:2003-12-05

    IPC分类号: C07C69/68

    CPC分类号: C07C67/08 C07C67/54 C07C69/68

    摘要: The invention relates to a continuous method of preparing ethyl lactate by means of lactic acid esterification using ethanol in the presence of a catalyst. The inventive method consists in continuously extracting a mixture comprising ethyl lactate, ethanol, water and different heavy products from an esterification reaction medium at partial lactic acid conversion rate and, subsequently, subjecting said mixture to a reduced-pressure flash separation, thereby producing an overhead stream containing a mixture of ethyl lactate, ethanol and water, the lower part of said mixture supplying a fractional distillation column.

    摘要翻译: 本发明涉及通过在催化剂存在下使用乙醇进行乳酸酯化制备乳酸乙酯的连续方法。 本发明的方法包括以部分乳酸转化率从酯化反应介质连续提取包含乳酸乙酯,乙醇,水和不同重质产物的混合物,随后将所述混合物进行减压闪蒸分离,由此产生塔顶 含有乳酸乙酯,乙醇和水的混合物,所述混合物的下部供应分馏塔。