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47 条记录 (耗时 0.031 秒)

    Transportation of a Monomer Composition in a Transport Means or Pipe
    14.
    发明申请
    Transportation of a Monomer Composition in a Transport Means or Pipe 审中-公开
    在运输工具或管道中运输单体组合物

    公开(公告)号：US20100056739A1

    公开(公告)日：2010-03-04

    申请号：US12532502

    申请日：2008-03-20

    申请人： Rüdiger Funk ,  Wilfried Heide ,  Matthias Weismantel ,  Ulrich Hammon ,  Andrea Karen Bennett

    发明人： Rüdiger Funk ,  Wilfried Heide ,  Matthias Weismantel ,  Ulrich Hammon ,  Andrea Karen Bennett

    IPC分类号： C08F120/06 ,  C09K3/00

    CPC分类号： C07C51/412 ,  C07C51/50 ,  C07C57/04

    摘要： The invention relates to a method for the transportation of a monomer composition in which a composition comprising an aqueous solution of partially or entirely neutralized acrylic acid or overneutralized acrylic acid is placed in a transport means or sent through a pipe. The method according to the invention is characterized in that it has an increased level of safety during the transportation of acrylic acid monomers, an improved quality of the resulting product, and a high degree of efficiency. The method ensures safe transport of the highly reactive acrylic acid. The amount of polymerization inhibitors added to said acrylic acid may be reduced. An additional advantage is the minimization of the formation of dimeric acrylic acid. Tempering of containers, pipes, and pipelines may be omitted.

    摘要翻译： 本发明涉及一种运输单体组合物的方法，其中将包含部分或全部中和的丙烯酸或过度中和丙烯酸的水溶液的组合物置于运输装置中或通过管道送出。 根据本发明的方法的特征在于其在丙烯酸单体的输送过程中具有提高的安全性，所得产物的质量提高，效率高。 该方法确保高反应性丙烯酸的安全运输。 添加到所述丙烯酸中的聚合抑制剂的量可以减少。 另外的优点是最小化二聚丙烯酸的形成。 容器，管道和管道的回火可以省略。

    Production of Water-Absorbent Resins
    18.
    发明申请
    Production of Water-Absorbent Resins 审中-公开
    吸水树脂的生产

    公开(公告)号：US20100197877A1

    公开(公告)日：2010-08-05

    申请号：US12669916

    申请日：2008-08-08

    申请人： Rüdiger Funk ,  Wilfried Heide ,  Matthias Weismantel ,  Ulrich Hammon ,  Andrea Karen Bennett

    发明人： Rüdiger Funk ,  Wilfried Heide ,  Matthias Weismantel ,  Ulrich Hammon ,  Andrea Karen Bennett

    IPC分类号： C08F120/06

    CPC分类号： C08F220/06

    摘要： What is described is a process for producing water-absorbing resins, in which a) acrylic acid is prepared at an acrylic acid production site, b) the acrylic acid prepared is dissolved in water at the acrylic acid production site to obtain an aqueous acrylic acid solution, c) the aqueous acrylic acid solution is fed into a pipeline at the acrylic acid production site and passed through the pipeline to an acrylic acid processing site and d) the aqueous acrylic acid solution is subjected to a free-radical polymerization at the acrylic acid processing site. The process ensures safe transport of the highly reactive acrylic acid. Endangerment as a result of premature polymerization, as in the case of glacial acrylic acid, is ruled out, since the acrylic acid is “diluted” by the aqueous solvent and the specific heat capacity and the evaporation enthalpy of the water limit the maximum temperature rise. The amount of polymerization inhibitors used be reduced or it is possible to entirely dispense with polymerization inhibitors. Temperature control of vessels and pipelines within which the aqueous acrylic acid solution is conducted can be dispensed with because the solidification point of the aqueous acrylic acid solution is lower than that of anhydrous acrylic acid.

    摘要翻译： 描述的是一种生产吸水树脂的方法，其中a）在丙烯酸生产部位制备丙烯酸，b）将制备的丙烯酸溶解在丙烯酸生产部位的水中，得到含水丙烯酸 溶液，c）丙烯酸水溶液进料到丙烯酸生产现场的管道中，通过管道进入丙烯酸加工现场，并且d）丙烯酸水溶液在丙烯酸处理下进行自由基聚合 酸加工现场。 该方法确保高反应性丙烯酸的安全运输。 由于丙烯酸被水性溶剂“稀释”，所以比例热容量和水的蒸发焓限制了最大温度上升，因此排除了由于过早聚合而导致的过早聚合的结果，如在丙烯酸的情况下 。 使用的聚合抑制剂的量减少，或者可以完全省去聚合抑制剂。 由于丙烯酸水溶液的固化点低于无水丙烯酸的固化点，所以可以省去进行丙烯酸水溶液的容器和管道的温度控制。