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    Continuous ethyl lactate preparation method
    1.
    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

    申请人： Serge Tretjak ,  Elie Burtin ,  Remy Teissier

    发明人： Serge Tretjak ,  Elie Burtin ,  Remy Teissier

    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。

    Method for lactic acid oligomerization
    2.
    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

    申请人： Remy Teissier ,  Serge Tretjak ,  Elie Burtin

    发明人： Remy Teissier ,  Serge Tretjak ,  Elie Burtin

    IPC分类号： B01D3/00 ,  B01D3/10 ,  B01J19/24 ,  C07C67/08 ,  C07C69/68 ,  C08L67/00

    CPC分类号： B01J19/2465 ,  B01D3/009 ,  B01J19/24 ,  B01J2219/00094 ,  B01J2219/00182 ,  C07C67/08 ,  Y02P20/127 ,  C07C69/68

    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。

    Composition comprising a mixture of alkylmono and polylactyllactate
    3.
    发明申请
    Composition comprising a mixture of alkylmono and polylactyllactate 审中-公开
    组合物，其包含烷基单和乳酸的混合物

    公开(公告)号：US20050215453A1

    公开(公告)日：2005-09-29

    申请号：US10510929

    申请日：2003-03-17

    申请人： Remy Teissier

    发明人： Remy Teissier

    IPC分类号： B08B3/08 ,  C11D7/26 ,  C11D7/50 ,  C23G5/032 ,  C11D17/00

    CPC分类号： C23G5/032 ,  C11D7/5022

    摘要： The present invention relates to an oligomeric composition of lactic acid ester comprising a mixture of monoalkyl and polyalkyl lactyllactates which are useful alone or in combination with other solvents for cleaning and degreasing. The lactyllactates have a high flash point, low toxicity, low odor and do not release volatile organic compounds in use.

    摘要翻译： 本发明涉及乳酸酯的低聚组合物，其包含单烷基和多烷基乳糖基乳酸酯的混合物，其可单独使用或与用于清洁和脱脂的其它溶剂组合使用。 乳酸乳酸酯具有高闪点，低毒性，低气味，并且不释放使用中的挥发性有机化合物。

    Process for obtaining N-monosubstituted hydroxylamine
    5.
    发明授权
    Process for obtaining N-monosubstituted hydroxylamine 失效
    获得N-单取代羟胺的方法

    公开(公告)号：US5731462A

    公开(公告)日：1998-03-24

    申请号：US768834

    申请日：1996-12-18

    申请人： Christophe Calais ,  Remy Teissier

    发明人： Christophe Calais ,  Remy Teissier

    IPC分类号： C07C239/08 ,  C07C291/02 ,  C07C249/02 ,  C07C209/00 ,  C07C209/40 ,  C07C249/00

    CPC分类号： C07C291/02 ,  C07C239/08

    摘要： The subject of the present invention is a new process for obtaining nitrones. It more particularly relates to a process for obtaining N-monosubstituted hydroxylamine comprising a stage in which a nitrone is formed from a secondary amine in the presence of an oxidizing agent and of at least one C.dbd.O containing species chosen from the group consisting of carbon dioxide, hydrogencarbonates and carbonates.

    摘要翻译： 本发明的主题是获得硝酮的新方法。 更具体地涉及一种获得N-单取代羟胺的方法，其包括在氧化剂存在下由仲胺形成硝化酮的阶段和至少一种含C = O的选自碳 二氧化碳，碳酸氢盐和碳酸盐。

    METHOD OF OBTAINING 1,2-DICHLOROETHANE BY DIRECT CHLORINATION WITH A STEP OF SEPARATION FROM THE CATALYST BY DIRECT EVAPORATION, AND FACILITY FOR THE IMPLEMENTATION THEREOF
    9.
    发明申请
    METHOD OF OBTAINING 1,2-DICHLOROETHANE BY DIRECT CHLORINATION WITH A STEP OF SEPARATION FROM THE CATALYST BY DIRECT EVAPORATION, AND FACILITY FOR THE IMPLEMENTATION THEREOF 审中-公开
    通过直接氯化法从催化剂中分离直接氯化获得1,2-二氯乙烷的方法及其实施方法

    公开(公告)号：US20100036180A1

    公开(公告)日：2010-02-11

    申请号：US12373388

    申请日：2007-07-10

    申请人： Philippe Leduc ,  Francois Vanney ,  Remy Teissier

    发明人： Philippe Leduc ,  Francois Vanney ,  Remy Teissier

    IPC分类号： C07C21/04 ,  B01J10/00

    CPC分类号： C07C17/02 ,  C07C17/25 ,  C07C19/045 ,  C07C21/06

    摘要： The present invention relates to a method of producing liquid 1,2-dichloroethane (DCE), obtained by low-temperature direct chlorination of ethylene, in the presence of a Lewis acid-type catalyst, that makes it possible to obtain, after separation of the catalyst, DCE of sufficient purity to give, via cracking, vinyl chloride monomer (VCM); characterized in that it comprises a step of dechlorination (5) of the liquid DCE stream (4) exiting the chlorination reactor (1), that makes it possible to remove the excess dissolved chlorine, followed by a step of direct evaporation (9) of the whole of the liquid DCE stream (8) exiting said reactor, that makes it possible to separate the catalyst from the evaporated fraction (10) of the stream of DCE good for cracking.The invention also relates to the plant for the implementation of such a method.

    摘要翻译： 本发明涉及一种在路易斯酸型催化剂存在下，通过乙烯的低温直接氯化得到的液体1,2-二氯乙烷（DCE）的制备方法，其可以在分离后 催化剂，DCE具有足够的纯度，通过裂化得到氯乙烯单体（VCM）; 其特征在于它包括离开氯化反应器（1）的液体DCE流（4）的脱氯（5）的步骤，这使得可以除去过量的溶解氯，然后直接蒸发（9） 离开所述反应器的整个液体DCE流（8），这使得可以将催化剂与DCE流的蒸发馏分（10）分离，以使其破裂。 本发明还涉及用于实施这种方法的设备。

    Continuous method for preparing ethyl lactate
    10.
    发明申请
    Continuous method for preparing ethyl lactate 失效
    连续制备乳酸乙酯的方法

    公开(公告)号：US20060014976A1

    公开(公告)日：2006-01-19

    申请号：US10537150

    申请日：2003-12-05

    申请人： Georges Martino-Gauchi ,  Remy Teissier

    发明人： Georges Martino-Gauchi ,  Remy Teissier

    IPC分类号： C07C67/08

    CPC分类号： C07C67/08 ,  C07C69/68

    摘要： The invention concerns a continuous method for preparing ethyl lactate by esterifying lactic acid with ethanol, in the presence of a catalyst which consists in reacting said lactic acid with ethanol in an initial ethanol/lactic acid mol ratio not less than 2.5, in the presence of a catalyst, at a reflux of the reaction medium of about 100° C. under absolute pressure ranging between 1.5 to 3 bars. Said method is characterized in that it consists in continuously extracting from the esterification reaction medium a near-azeotropic water/ethanol gas mixture; then in dehydrating said gas mixture directly using molecular sieves, then recuperating from said dehydration an ethanol gas stream capable of being recycled to the esterification reaction medium and a flow consisting of water and ethanol which is subjected to distillation wherefrom is obtained water and an azeotropic water/ethanol mixture which is injected into the distillation column head of the gas mixture extracted from the esterification reaction medium; then in continuously extracting crude ethyl lactate which is subjected to purification wherefrom are obtained high purity ethyl lactate and heavy products.

    摘要翻译： 本发明涉及通过在乙醇中酯化乳酸，在催化剂存在下制备乳酸乙酯的连续方法，所述催化剂包括在初始乙醇/乳酸摩尔比不小于2.5时使所述乳酸与乙醇反应， 催化剂，在反应介质的回流下，在绝对压力范围为1.5至3巴之间约100℃。 所述方法的特征在于其从酯化反应介质中连续提取近共沸水/乙醇气体混合物; 然后使用分子筛直接使所述气体混合物脱水，然后从所述脱水中回收能够再循环到酯化反应介质的乙醇气流和由水和乙醇组成的流，其中得到水和共沸水 /乙醇混合物，其被注入从酯化反应介质中提取的气体混合物的蒸馏塔头中; 然后连续提取经过纯化的粗乳酸乙酯，得到高纯度乳酸乙酯和重质产物。