会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 67. 发明授权
    • Method for the recovery of secondary polyols from paint sludges
    • 从涂料淤泥中回收二级多元醇的方法
    • US5716996A
    • 1998-02-10
    • US747700
    • 1996-11-12
    • Bernd-Uwe KettemannMichele Melchiorre
    • Bernd-Uwe KettemannMichele Melchiorre
    • C08J11/00C08J11/24C08J18/14
    • C08J11/24C08J11/00C08J2375/04Y02W30/706
    • The invention relates to a method for the recovery of secondary polyols from paint sludge coagulate, formed from paint overspray which has first been dewatered by mass action, by chemical treatment in a manner such that the recovered product can be reused in the manufacture of paints. According to the recovery method, the organic components contained in the paint coagulate are glycolytically split at an elevated temperature into reusable polyols. Preferably, a mixture of different glycols is used, preferably in an amount of about 20 to 50% by weight based on the dewatered paint coagulate. The addition of glycol dilutes the paint coagulate and makes it flowable. The water contained in the paint coagulate is evaporated and removed during the glycolytic splitting because of the increase in temperature. The impurities contained in the paint coagulate, such as pigments, coagulants or flocculants, can be comminuted and finely dispersed by intensive shearing of the paint coagulate. At the end of the process, these impurities can also be filtered out from the polyols formed.
    • 本发明涉及一种从油漆污泥中回收二级多元醇的方法,该方法是通过化学处理使得回收的产物可以再利用于涂料制造中的方式,首先通过质量作用脱水的油漆过喷而形成。 根据回收方法,包含在油漆凝结物中的有机组分在升高的温度下糖酵解分解成可再利用的多元醇。 优选地,使用不同的二醇的混合物,优选以基于脱水的凝胶凝固的约20至50重量%的量。 加入乙二醇会使油漆凝结而使其流动。 由于温度升高,在糖酵解裂解过程中,凝结物中含有的水被蒸发并除去。 油漆凝结物中所含的杂质,如颜料,凝结剂或絮凝剂,可通过剧烈剪切凝固而粉碎和细分散。 在该方法结束时,这些杂质也可以从形成的多元醇中过滤掉。