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
    • 1. 发明公开
    • PROCESS FOR PRODUCING BISPHENOL A
    • VERFAHREN ZUR HERSTELLUNG VON BISPHENOL A
    • EP1541542A4
    • 2006-08-09
    • EP03791186
    • 2003-07-29
    • IDEMITSU KOSAN CO
    • HIRANO KAZUYUKIOGATA NORIO
    • C07C37/20C07C37/70C07C37/74C07C37/82C07C37/84C07C39/16
    • C07C37/84C07C37/20C07C37/70C07C37/74C07C37/82C07C39/16
    • A process for bisphenol A production in which when bisphenol A is taken out of a reaction mixture, a high-purity adduct of bisphenol A with phenol is rapidly and efficiently recovered from the mother liquor resulting from the reaction. The process for producing bisphenol A comprises crystallizing a bisphenol A/phenol adduct from a bisphenol A phenol solution obtained by reacting phenol with acetone in the presence of an acid catalyst, subjecting the resultant slurry to solid-liquid separation, and then removing the phenol from the solid ingredient, wherein the phenol slurry solution of bisphenol A which contains the bisphenol A/phenol adduct in the form of crystals having an average particle diameter of 0.05 to 1 mm is poured on a filter and filtered under vacuum in an inert gas stream having an oxygen content of 5,000 ppm by volume or lower at 30 to 80°C to form a layer of the bisphenol A/phenol adduct in the form of crystals.
    • 一种双酚A生产方法,其中当双酚A从反应混合物中取出时,双酚A与苯酚的高纯度加合物从反应产生的母液中快速有效地回收。 生产双酚A的方法包括使双酚A /苯酚加合物从苯酚与丙酮在酸催化剂存在下反应得到的双酚A苯酚溶液中结晶出来,将所得浆料进行固液分离,然后从其中除去苯酚 其中将含有平均粒径为0.05-1mm的结晶形式的双酚A /苯酚加合物的双酚A的酚浆溶液倒入过滤器中,并在真空下在惰性气流中过滤, 在30至80℃下氧含量为5,000体积ppm或更低,以形成晶体形式的双酚A /苯酚加合物层。