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    METHOD OF POLYETHYLENE TEREPHTHALATE PET WASTE RECYCLING
    5.
    发明公开
    METHOD OF POLYETHYLENE TEREPHTHALATE PET WASTE RECYCLING 审中-公开
    聚乙烯 - 聚酯 - 聚酯

    公开(公告)号：EP3155038A1

    公开(公告)日：2017-04-19

    申请号：EP14830737.4

    申请日：2014-12-17

    申请人： Rs Pet Spólka Z O.o.

    发明人： GRZYBOWSKI, Piotr

    IPC分类号： C08J11/24 ,  C07C51/09 ,  C07C63/26

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

    摘要： The manner of polyethylene terephthalate PET waste recycling, especially raw materials recycling to obtain terephthalic acid and ethylene glycol. In the first stage PET waste bits are digested in a temperature from 190°C to 265°C in high-boiling monohydric or multihydric alcohol or their mixture, preferably with addition of phenol in the presence of catalysts. PET transesterification process is carried out by adding of high-boiling monohydric or multihydric alcohol or their mixture, preferably with addition of phenol and ethylene glycol is distilled which is used in another production cycle for the PET digestion process. The excess ethylene glycol is discharged as an additional product. In the second stage the remaining semi-product is mixed with low-boiling alcohol or a mixture of low-boiling alcohols and is subjected to transesterification. High-boiling alcohol and terephthalic acid ester are separated to which, in the third stage, water with a catalyst are added. Hydrolysis process is carried out and low-boiling alcohol is distilled. The obtained water suspension of terephthalic acid is subjected to filtration and the discharged terephthalic acid is subjected to washing and drying.

    摘要翻译： 聚对苯二甲酸乙二醇酯PET废物回收方式，特别是原料回收得到对苯二甲酸和乙二醇。 在第一阶段，PET废弃物在高沸点一元或多元醇或其混合物中在190℃至265℃的温度下被消化，优选在催化剂存在下加入苯酚。 通过加入高沸点一元或多元醇或其混合物，优选加入苯酚和乙二醇进行PET酯交换反应，该方法用于PET消化过程的另一个生产循环中。 过量的乙二醇作为附加产物排出。 在第二阶段中，剩余的半成品与低沸点醇或低沸点醇的混合物混合并进行酯交换。 分离高沸点醇和对苯二甲酸酯，在第三阶段加入加入催化剂的水。 进行水解过程，蒸馏出低沸点醇。 将得到的对苯二甲酸的水悬浮液进行过滤，对排出的对苯二甲酸进行洗涤和干燥。

    VERFAHREN ZUR WIEDERVERWERTUNG VON RECYCELTEN POLYCYANURATHALTIGEN MATERIALIEN IN NEUEN POLYMEREN WERKSTOFFEN
    9.
    发明公开
    VERFAHREN ZUR WIEDERVERWERTUNG VON RECYCELTEN POLYCYANURATHALTIGEN MATERIALIEN IN NEUEN POLYMEREN WERKSTOFFEN 审中-公开
    法氰酸酯在新型高分子材料循环再生材料

    公开(公告)号：EP2885338A1

    公开(公告)日：2015-06-24

    申请号：EP13750570.7

    申请日：2013-08-16

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： SÖTHJE, Dominik ,  BAUER, Monika ,  DREYER, Christian

    IPC分类号： C08G73/06 ,  C08J11/04

    CPC分类号： C08G73/0655 ,  C08G18/3206 ,  C08G18/3851 ,  C08G18/7671 ,  C08G18/7831 ,  C08G18/792 ,  C08G18/794 ,  C08G2101/0025 ,  C08G2101/0083 ,  C08G2105/02 ,  C08J11/04 ,  C08J11/28 ,  C08J2375/00 ,  Y02P20/143 ,  Y02W30/70 ,  Y02W30/706

    摘要： The present invention relates to a process for producing an organic polymer material, the production of which involves at least one hydroxyl- or amino-containing compound as a starting component, comprising the steps of: - providing a material which has formed through aminolysis and/or alcoholysis of a cyanurate polymer, - reacting this material with at least one compound selected from difunctional and/or higher-functionality compounds whose functional groups can react with hydroxyl groups or amino groups, or aldehydes, and - curing the mixture by a crosslinking reaction. The process preferably further comprises the provision of the cyanurate polymer and the performance of an aminolysis/alcoholysis on this material, in order to obtain the aminolysed/alcoholysed product. The aminolysis proceeds with ammonia, an amine of the formula NH
    2 -R''-X or an amine of the formula R'-NH-R''-X and/or through alcoholysis with an alcoholysis reagent selected from hydroxyl compounds of the formula R'''-OH in which R'' is a divalent, optionally substituted hydrocarbyl radical, X is selected from H, OH, NH
    2 and NHR' and R' is an alkyl group which is unsubstituted or substituted by at least one hydroxyl group or an unsubstituted or alkyl-substituted aryl group and R''' is an alkyl group which is unsubstituted or substituted by at least one hydroxyl group or an unsubstituted or substituted aryl group, where the aryl group in the latter case is substituted by one or more substituents selected from alkyl, aryl, hydroxyl, hydroxyalkyl and hydroxyaryl, NH
    2 -R''-X or an amine of the formula R'-NH-R''-X in which R'' is a divalent, optionally substituted hydrocarbyl radical and X is selected from H, OH and NH
    2 /NHR''', and in which R' and R''' are each independently an alkyl group or an unsubstituted or alkyl-substituted aryl group.