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    • 1. 发明申请
    • SINGLE STEP LACTIDE PRODUCTION PROCESS WITH SEPARATE ENTRY FOR SOLVENT
    • 单步法生产工艺,单独进入溶剂
    • WO2017220519A1
    • 2017-12-28
    • PCT/EP2017/065000
    • 2017-06-20
    • TOTAL RESEARCH & TECHNOLOGY FELUY
    • YAZDANPANAH, MahdiCHAOUKI, JamalVAN WOUWE, PieterSELS, Bert
    • C07D319/12
    • The present invention relates to a process for synthesizing lactide, comprising the steps of: - adding thermal energy to at least one solvent; - providing one or more components to at least one reactor, the one or more components comprising lactic acid and the at least one solvent; - converting at least part of the lactic acid into lactide and water; and - recovering at least part of the lactide; wherein the step of adding thermal energy to the at least one solvent is performed prior to the step of adding the at least one solvent to the at least one reactor; wherein the at least one solvent is provided in the at least one reactor independently from the lactic acid by a separate entry into the at least one reactor; and, wherein the step of converting at least part of the lactic acid into lactide and water is performed in one step.
    • 本发明涉及一种合成丙交酯的方法,其包括以下步骤: - 向至少一种溶剂中加入热能; - 向至少一个反应器提供一种或多种组分,所述一种或多种组分包含乳酸和所述至少一种溶剂; - 将至少部分乳酸转化为丙交酯和水; 和 - 回收至少一部分丙交酯; 其中向所述至少一种溶剂中加入热能的步骤在将所述至少一种溶剂加入到所述至少一种反应器中的步骤之前进行; 其中所述至少一种溶剂通过独立地进入所述至少一个反应器而独立于所述乳酸而在所述至少一个反应器中提供; 并且其中将至少部分乳酸转化为丙交酯和水的步骤在一个步骤中进行。
    • 3. 发明申请
    • PROCESS FOR PREPARING CYCLIC ESTERS AND CYCLIC AMIDES
    • 制备循环酯和周期酰胺的方法
    • WO2014122294A1
    • 2014-08-14
    • PCT/EP2014/052493
    • 2014-02-07
    • TOTAL RESEARCH & TECHNOLOGY FELUY
    • SELS, BertDUSSELIER, Michiel
    • C07D313/04C07D223/08C07D319/12
    • C07D319/12C07D223/08C07D223/10C07D313/04
    • The invention relates to a process for preparing a cyclic ester or a cyclic amide, comprising the step of: contacting at least one hydroxycarboxylic acid and/or at least one amino-carboxylic acid; or an ester, or salt thereof; wherein said hydroxycarboxylic acid is a 2-hydroxycarboxylic acid,or a 6–hydroxycarboxylic acid; and wherein said amino carboxylic acid is a 2-amino-carboxylic acid or a 6-amino-carboxylic acid; with at least one acidic zeolite comprising: - two or three interconnected and non-parallel channel systems, wherein at least one of said channel systems comprises 10-or more-membered ring channels; and a framework Si/X 2 ratio of at least 24 as measured by NMR; or - three interconnected and non-parallel channel systems, wherein at least two of said channel systems comprise 10-or more-membered ring channels; and a framework Si/X 2 ratio of at least 6 as measured by NMR; wherein each X is Al or B, and wherein the process is performed at a pressure between 0.5 and 20 bar.
    • 本发明涉及一种制备环状酯或环状酰胺的方法,包括以下步骤:使至少一种羟基羧酸和/或至少一种氨基羧酸接触; 或酯或其盐; 其中所述羟基羧酸是2-羟基羧酸或6-羟基羧酸; 并且其中所述氨基羧酸是2-氨基 - 羧酸或6-氨基 - 羧酸; 其中至少一种酸性沸石包括: - 两个或三个相互连接和非平行的通道系统,其中所述通道系统中的至少一个包含10个或更多个元环的通道; 和通过NMR测量的至少24的骨架Si / X2比率; 或 - 三个互连和非并行信道系统,其中至少两个所述信道系统包括10个或更多个元环路信道; 和通过NMR测量的至少6的骨架Si / X2比率; 其中每个X是Al或B,并且其中所述方法在0.5至20巴之间的压力下进行。
    • 5. 发明申请
    • SINGLE STEP LACTIDE PRODUCTION PROCESS WITH HYDROLYSIS OF OLIGOMERS AND CATALYST BY RECOVERED WATER
    • OLIGOMERS水解催化剂及回收水催化剂的单步法生产工艺
    • WO2017220521A1
    • 2017-12-28
    • PCT/EP2017/065002
    • 2017-06-20
    • TOTAL RESEARCH & TECHNOLOGY FELUY
    • YAZDANPANAH, MahdiCHAOUKI, JamalVAN WOUWE, PieterSELS, Bert
    • C07D319/12
    • The present invention relates to a process for synthesizing lactide comprising the steps of: providing one or more components to at least one reactor, the one or more components comprising lactic acid; - converting at least part of the lactic acid into lactide and water and into lactic acid oligomers; recovering at least part of the lactide; recovering at least part of the water and at least part of the lactic acid oligomers; adding a feed, optionally comprising lactic acid oligomers, and optionally comprising water, to the recovered water and the recovered lactic acid oligomers, and mixing the feed with the recovered water and the recovered lactic acid oligomers to form a mixture; converting at least part of the lactic acid oligomers in the mixture into lactic acid and into lactic acid dimer; and removing at least part of the water from the mixture; whereby at least part of the remainder of the mixture is provided as one of the one or more components that are provided to the at least one reactor; and, wherein the step of converting at least part of the lactic acid into lactide and water is performed in one step.
    • 本发明涉及一种合成丙交酯的方法,包括以下步骤:将一种或多种组分提供给至少一个反应器,所述一种或多种组分包含乳酸; - 将至少部分乳酸转化为丙交酯和水并转化为乳酸低聚物; 回收至少一部分丙交酯; 回收至少部分水和至少部分乳酸低聚物; 向回收的水和回收的乳酸低聚物中加入任选包含乳酸低聚物和任选包含水的进料,并将进料与回收的水和回收的乳酸低聚物混合以形成混合物; 将混合物中的至少部分乳酸低聚物转化为乳酸并转化为乳酸二聚体; 并从混合物中除去至少部分水; 由此将所述混合物的剩余部分的至少一部分作为提供给所述至少一个反应器的所述一种或多种组分中的一种提供; 并且其中将至少部分乳酸转化为丙交酯和水的步骤在一个步骤中进行。