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    • 2. 发明公开
    • PROCESSES FOR RECYCLING POLYSTYRENE WASTE
    • 回收聚苯乙烯垃圾的过程
    • EP3201246A1
    • 2017-08-09
    • EP15845885.1
    • 2015-10-05
    • Polystyvert Inc.
    • CÔTÉ, Roland
    • C08F112/08B29B17/02C08J11/08C08L25/06
    • C08J11/08B29B17/02C08F112/08C08J11/00C08J2325/06C08L25/00C08L25/06Y02W30/701
    • There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10 min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.
    • 提供了熔体流动指数小于约25g / 10min的再生聚苯乙烯聚合物。 提供了回收聚苯乙烯废物的方法。 该方法可以包括在获得聚苯乙烯/对二甲基苯乙烯混合物的条件下将所述聚苯乙烯废物溶解在对二甲苯中,在一定条件下将该聚苯乙烯/对二甲基苯乙烯混合物加入到烃聚苯乙烯非溶剂中以获得沉淀的聚苯乙烯并洗涤沉淀的聚苯乙烯 与额外部分的烃聚苯乙烯非溶剂在获得两次洗涤的聚苯乙烯的条件下接触。 经过两次洗涤的聚苯乙烯可以任选地干燥并形成聚苯乙烯颗粒。 还提供了从这种回收聚苯乙烯废物的方法获得的再生聚苯乙烯。
    • 3. 发明公开
    • METHOD FOR CONCENTRATING AND RECOVERING AQUEOUS SOLUTION OF A SURFACTANT
    • 压缩和恢复的水溶液从表面活性剂的方法
    • EP2745900A1
    • 2014-06-25
    • EP12823449.9
    • 2012-08-09
    • Asahi Glass Company, Limited
    • FUTAGAWA, NorifumiNAGANO, Shigeyuki
    • B01D1/16C08F6/14
    • B01D1/16B01D1/12B01D1/20B01D3/06B01D19/02B05B1/00B05B1/06B05B1/34C08F6/16C08F6/24C08J11/00C11D1/04C08L27/18
    • To provide a process for concentrating and recovering a surfactant aqueous solution, by which a surfactant aqueous solution can be evaporated and concentrated while suppressing foaming, and a surfactant aqueous solution in which the concentration of the surfactant is increased, can easily be obtained with high efficiency.
      A process for concentrating and recovering a surfactant aqueous solution, by evaporating and concentrating a surfactant aqueous solution containing a gasifiable surfactant and an aqueous solvent to increase the concentration of the surfactant, which comprises storing the surfactant aqueous solution in an evaporator 12; adjusting the temperature of the surfactant aqueous solution in the evaporator 12 to be lower than the boiling point of the aqueous solvent under the pressure in the evaporator 12; withdrawing a part of the surfactant aqueous solution from the evaporator 12, superheating it by a superheater 14 under conditions that all the surfactant and the aqueous solvent are formed into an annular flow or an annular mist flow, and spraying it from a nozzle 32 having a shape such that the outlet side first narrows and then widens outward, into the evaporator 12; and evaporating and removing the aqueous solvent.
    • 提供一种用于浓缩和回收的表面活性剂wässrige溶液,通过该表面活性剂wässrige溶液可以蒸发和浓缩,同时抑制发泡,并且其中表面活性剂的浓度增加的表面活性剂wässrige溶液的方法,可以很容易地以高效率获得 , 一种用于浓缩和回收的表面活性剂溶液wässrige,通过蒸发和浓缩的表面活性剂溶液wässrige含可气化表面活性剂和溶剂wässrige以增加表面活性剂,其包括存储在wässrige表面活性剂溶液至蒸发器12的浓缩过程; 调节表面活性剂wässrige溶液的温度在蒸发器12比在蒸发器12内的压力下的溶剂wässrige的沸点下; 来自蒸发器12的吸表面活性剂wässrige解决方案的一部分的条件下过热它通过一个过热器14做了所有的表面活性剂和wässrige溶剂中,在环状的设计流或环状设计掷骰子流的形成为,和从喷嘴喷洒32具有 形状检查做的出口侧第一变窄然后加宽向外,进入蒸发器12; 并蒸发除去溶剂wässrige。