公开(公告)号：US06790987B2

公开(公告)日：2004-09-14

申请号：US10362057

申请日：2003-02-20

申请人： Arno Behr ,  Volker Brehme

发明人： Arno Behr ,  Volker Brehme

IPC分类号： C07C5109

CPC分类号： C07C51/36 ,  C07C51/09 ,  C07C51/377 ,  C07C57/03 ,  C07C53/126

摘要： The present invention relates to a process of cleaving lactones optionally having functional groups to give carboxylic acids, where the corresponding lactone is reacted with hydrogen with catalysis by a compound of a metal of group VIII of the Periodic Table of the Elements which has been modified with organophosphines. The process is preferably carried out in a two-phase system using catalysts which have water-soluble phosphine ligands. The reaction is particularly suitable for cleavage 2-ethylidene-6-hepten-5-olide to give ethylidene-6-heptenecarboxylic acid or isomers thereof. This carboxylic acid can be hydrogenated in a manner known per se to give 2-ethylheptanoic acid.

摘要翻译： 本发明涉及一种切割任选具有官能团以产生羧酸的内酯的方法，其中相应的内酯与氢反应，通过元素周期表第VIII族金属的化合物进行催化，该化合物已经用 有机膦。 该方法优选在使用具有水溶性膦配体的催化剂的两相体系中进行。该反应特别适用于裂解2-亚乙基-6-庚烯-5-醇，得到亚乙基-6-庚烯羧酸或异构体 其中。 该羧酸可以本身已知的方式氢化，得到2-乙基庚酸。

公开(公告)号：US06284920B1

公开(公告)日：2001-09-04

申请号：US09412458

申请日：1999-10-04

申请人： Edward E. Paschke ,  Bruce I. Rosen ,  David A. Peterson ,  David E. James ,  Melvin L. Luetkens, Jr. ,  Charles W. Bauer ,  Gary T. Brooks

发明人： Edward E. Paschke ,  Bruce I. Rosen ,  David A. Peterson ,  David E. James ,  Melvin L. Luetkens, Jr. ,  Charles W. Bauer ,  Gary T. Brooks

IPC分类号： C07C5109

CPC分类号： C08G63/189 ,  C07C51/265 ,  C07C51/42 ,  C07C63/38 ,  Y10T428/1352 ,  Y10T428/29 ,  Y10T428/2913

摘要： Processes for producing aromatic monomers useful for forming polyesters are disclosed. Cost effective steps employed in the processes permit small amounts of process-related materials typically removed from monomer to remain in an aromatic monomer product. In many cases, the presence of the process-related materials left in the monomer product by the cost effective process steps can enhance the performance of the monomer in certain applications. Aromatic monomer products and polymers produced therefrom having these advantages also are disclosed, as well as products such as pasteurizable bottles made from these polymers.

摘要翻译： 公开了用于制备用于形成聚酯的芳族单体的方法。 在该方法中使用的成本有效的步骤允许通常从单体中除去残留在芳族单体产物中的少量与工艺相关的材料。 在许多情况下，通过成本有效的工艺步骤留在单体产品中的工艺相关材料的存在可以在某些应用中提高单体的性能。 还公开了具有这些优点的芳族单体产物和由其制备的聚合物，以及由这些聚合物制成的诸如可巴氏消毒瓶的产品。

公开(公告)号：US06670503B2

公开(公告)日：2003-12-30

申请号：US09792567

申请日：2001-02-21

申请人： Massimo Broccatelli

发明人： Massimo Broccatelli

IPC分类号： C07C5109

CPC分类号： C07C51/09 ,  C07C63/26

摘要： The present invention relates to a method of recovering terephthalic acid from a material containing poly(ethylene terephthalate) (P.E.T.) in the form of bottles, by making said material react, in the absence of water, with a reagent consisting of one or more metal salts of a weaker acid than the terephthalic acid, until a water-soluble compound is obtained, and subsequently carrying out dissolution in water and acidification.

摘要翻译： 本发明涉及从含有聚（对苯二甲酸乙二醇酯）（PET）的材料的材料中回收对苯二甲酸的方法，其形式为瓶形，通过使所述材料在不存在水的情况下与由一种或多种金属组成的试剂反应 直到获得水溶性化合物，然后在水中溶解并酸化，得到比对苯二甲酸弱的酸的盐。

公开(公告)号：US06649792B2

公开(公告)日：2003-11-18

申请号：US10221502

申请日：2002-09-13

申请人： Milan {haeck over (S)}irek ,  Jaroslav Jirou{haeck over (s)}ek

发明人： Milan {haeck over (S)}irek ,  Jaroslav Jirou{haeck over (s)}ek

IPC分类号： C07C5109

CPC分类号： C07C51/09 ,  C07C29/095 ,  C08J11/14 ,  C08J2367/02 ,  Y02W30/704 ,  C07C63/26 ,  C07C31/202

摘要： The proposed method of chemical recycling of polyethylene terephthalate waste to terephthalic acid and ethandiol is based on a continuous series of gradual steps, namely (a) separation of the polyethylene terephthalate component of the input material by its conversion to brittle form through crystallization, grinding and subsequent sifting, followed by (b) continuous two-stage hydrolysis of the polyethylene terephthalate, carried out in the first stage by feeding steam to the polymer melt, and in the second stage, by the reaction of the products of the first stage of hydrolysis with ammonium hydroxide, followed by (c) condensation of terephthalic acid from an aqueous solution of the second-stage hydrolysis products by inorganic acid, and its separation by means of filtration, and finally (d) rectification separation of ethandiol from a solution of the products of the second stage of hydrolysis, after the separation of terephthalic acid.

公开(公告)号：US06833477B2

公开(公告)日：2004-12-21

申请号：US10084506

申请日：2002-02-28

申请人： Takashi Okazoe ,  Kunio Watanabe ,  Masahiro Ito ,  Daisuke Shirakawa ,  Shin Tatematsu

发明人： Takashi Okazoe ,  Kunio Watanabe ,  Masahiro Ito ,  Daisuke Shirakawa ,  Shin Tatematsu

IPC分类号： C07C5109

CPC分类号： C07C69/708 ,  C07C43/178 ,  C07C51/58 ,  C07C59/135 ,  C07C67/287 ,  C07C69/63 ,  Y02P20/582 ,  C07C69/734

摘要： The process for producing a vic-dichloro acid fluoride compound in a short process and in good yield from the starting material which is inexpensive and readily available is provided. (RH1—EH1—)CRH2RH3CH2—OCORHB (I) is fluorinated in a liquid phase to form (CF2ClCFCl—EFF1—) CRF2RF3CF2—OCORFB (II), and then, an ester bond of the compound (II) is decomposed to form (CF2ClCFCl—EF1—)CRF2RF3COF(III) or the compound (III) and FCORFB (IV).

摘要翻译： 提供了一种制备邻二氯酸氟化合物的方法，其制备方法简便，制备成本低，易于获得。 （R 1 -EH 1）CR H 2 R 3 H 2 O-OCOR H（I）在液相中氟化以形成（CF 2 ClCFCl -EFF 1 - ）CR F 2 然后，化合物（II）的酯键分解形成（CF 2 ClCFCl -E - F1） - CR（R）COF（III）或 化合物（III）和FCOR（FB）（IV）。

公开(公告)号：US06720448B2

公开(公告)日：2004-04-13

申请号：US09967929

申请日：2001-10-02

申请人： Massimo Broccatelli

发明人： Massimo Broccatelli

IPC分类号： C07C5109

CPC分类号： C07C51/09 ,  C08J11/16 ,  C08J2367/02 ,  Y02W30/705 ,  C07C63/26

摘要： The present invention relates to a method of recovering a solution comprising the chemical species obtained by depolymerization of PET from a material containing poly(ethylene terephthalate) in the form of bottles, by making said material react, in the absence of water, with a reagent consisting of one or more metal salts of a weaker acid than the terephthalic acid and of ethylene glycol, until a water-soluble intermediate product is obtained, and subsequently carrying out dissolution in water, stirring and filtering.

摘要翻译： 本发明涉及一种回收溶液的方法，该方法包括通过使PET从含有瓶形聚对苯二甲酸乙二醇酯的材料中解聚得到的化学物质，通过使所述材料在没有水的情况下与试剂反应 由一种或多种弱于对苯二甲酸和乙二醇的弱酸的金属盐组成，直到获得水溶性中间产物，随后在水中溶解，搅拌和过滤。

公开(公告)号：US06657077B1

公开(公告)日：2003-12-02

申请号：US09700546

申请日：2000-11-16

申请人： Jacques Thauront ,  Laurent Bonnamich ,  Guy Fraysse

发明人： Jacques Thauront ,  Laurent Bonnamich ,  Guy Fraysse

IPC分类号： C07C5109

CPC分类号： C07C51/09 ,  C08J11/16 ,  C08J2367/02 ,  Y02W30/705 ,  C07C63/26

摘要： The invention concerns a method for producing terephthalate of alkaline metal and alkylene glycol from recuperated alkylene polyterephthalate. It comprises saponification of said alkylene terephthalates with an aqueous sodium solution, adding a sufficient volume of water to ensure solubilization of the entire alkaline metal terephthalate produced in the reaction medium liquid phase and crystallisation of the sodium terephthalate by concentration of said liquid phase. The resulting sodium terephthalate can be directly used for producing pure terephthalic acid usable for the renewed production of alkylene polyterephthalates to be used in the food industry.

摘要翻译： 本发明涉及从再生烯烃聚对苯二甲酸酯生产碱金属和亚烷基二醇的对苯二甲酸酯的方法。 它包括用钠水溶液皂化所述的对苯二甲酸亚烷基酯，加入足够体积的水以确保在反应介质液相中产生的整个碱金属对苯二甲酸酯的溶解，并通过所述液相的浓度使对苯二甲酸钠的结晶溶解。 所得到的对苯二甲酸钠可以直接用于生产用于重新生产用于食品工业中的聚对苯二甲酸亚烷基酯的纯对苯二甲酸。

公开(公告)号：US06580005B1

公开(公告)日：2003-06-17

申请号：US09721057

申请日：2000-11-22

申请人： Jinichi Yazaki ,  Kozaburo Sakano ,  Nobuyuki Funakoshi ,  Kazuho Tanaka

发明人： Jinichi Yazaki ,  Kozaburo Sakano ,  Nobuyuki Funakoshi ,  Kazuho Tanaka

IPC分类号： C07C5109

CPC分类号： C07C51/43 ,  C07C51/09 ,  C07C51/412 ,  C07C51/47 ,  C08J11/24 ,  C08J2367/02 ,  Y02W30/706 ,  C07C63/28 ,  C07C63/26

摘要： This invention provides a process a process for recovering terephthalic acid from pulverized products of spent polyethylene terephthalate. This process comprises (1) a decomposition reaction step where the pulverized products of spent polyethylene terephthalate are continuously subjected to decomposition reaction in ethylene glycol in the presence of alkali, which is equimolar or excessmolar relative to the polyethylene terephthalate, so that salt of terephthalic acid and ethylene glycol can be continuously obtained; (2) a solid-liquid separation, dissolution, impurities-removing step where the ethylene glycol is separated from decomposition reaction slurry of salt of terephthalic acid and ethylene glycol, and the solid salt of terephthalic acid is dissolved into water, while insoluble impurities are removed; (3) a neutralization, crystallization step, where solution of said salt of terephthalic acid is neutralized with acid so that terephthalic acid can be crystallized; (4) a solid-liquid separation, washing step where slurry of terephthalic acid crystals is subjected to solid-liquid separation so that the terephthalic acid crystals can be obtained and washed; and (5) a drying, pulverization step where the washed terephthalic acid crystals are dried and pulverized.

摘要翻译： 本发明提供一种从废聚对苯二甲酸乙二醇酯的粉碎产物中回收对苯二甲酸的方法。 该方法包括：（1）分解反应步骤，其中废聚对苯二甲酸乙二醇酯的粉碎产物在相对于聚对苯二甲酸乙二醇酯等摩尔或过量的碱的存在下在乙二醇中连续进行分解反应，使得对苯二甲酸的盐 可连续获得乙二醇; （2）从对苯二甲酸和乙二醇盐的分解反应浆液中分离出乙二醇和对苯二甲酸的固体盐的固液分离，溶解，杂质去除步骤溶解在水中，不溶性杂质为 删除 （3）中和，结晶步骤，其中所述对苯二甲酸盐的溶液用酸中和，使对苯二甲酸可以结晶; （4）固液分离洗涤步骤，其中将对苯二甲酸晶体的浆液进行固液分离，以获得和洗涤对苯二甲酸晶体; 和（5）干燥，粉碎步骤，其中将洗涤的对苯二甲酸晶体干燥并粉碎。