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
    • 26. 发明授权
    • Crystallization processes for producing bisphenols
    • 生产双酚的结晶过程
    • US07763757B2
    • 2010-07-27
    • US11971268
    • 2008-01-09
    • Christian MünnichUlrich BlaschkeRob EekMichael PreinRaymond AudenaertGert Tytgat
    • Christian MünnichUlrich BlaschkeRob EekMichael PreinRaymond AudenaertGert Tytgat
    • C07C37/84C07C39/16
    • C07C37/20C07C37/84C07C39/16
    • Processes for producing bisphenols (e.g., bisphenol A (BPA)) having a purity greater than 99.7% are described, such processes including reacting a phenol and acetone in the presence of an acidic catalyst to form a product mixture comprising a bisphenol; removing at least a portion of the bisphenol from the product mixture in the form of a bisphenol/phenol adduct by crystallization, filtration and washing to provide bisphenol/phenol adduct crystals; and removing at least a portion of the phenol from the bisphenol/phenol adduct crystals to provide the bisphenol having a purity of more than 99.7%; wherein the crystallization comprises continuous suspension crystallization and is carried out in at least three crystallization devices arranged such that the product mixture is first cooled in a first stage of the crystallization to a temperature of 50 to 70° C. in a first crystallization device and a second crystallization device connected in parallel, and subsequently cooled in a second stage of the crystallization to a temperature of 40 to 50° C. in a third crystallization device connected downstream in series to the first and second crystallization devices, and wherein a total dwell time of the product mixture in the crystallization is more than 4 hours.
    • 描述了用于生产纯度大于99.7%的双酚(例如双酚A(BPA))的方法,包括在酸性催化剂存在下使苯酚和丙酮反应以形成包含双酚的产物混合物; 通过结晶,过滤和洗涤从双酚/苯酚加合物的形式从产物混合物中除去至少一部分双酚以提供双酚/苯酚加合物晶体; 并从双酚/苯酚加合物晶体中除去至少一部分苯酚,得到纯度大于99.7%的双酚; 其中所述结晶包括连续悬浮液结晶,并且在至少三个结晶装置中进行,所述结晶装置被排列成使得产物混合物在结晶的第一阶段首先在第一结晶装置中冷却至50至70℃, 第二结晶装置并联连接,随后在结晶的第二阶段中在与第一和第二结晶装置串联下游的第三结晶装置中冷却至40至50℃的温度,并且其中总停留时间 的产物混合物在结晶中超过4小时。
    • 28. 发明申请
    • CRYSTALLIZATION PROCESSES FOR PRODUCING BISPHENOLS
    • 生产双酚的结晶方法
    • US20080200734A1
    • 2008-08-21
    • US11971268
    • 2008-01-09
    • Christian MunnichUlrich BlaschkeRob EekMichael PreinRaymond AudenaertGert Tytgat
    • Christian MunnichUlrich BlaschkeRob EekMichael PreinRaymond AudenaertGert Tytgat
    • C07C39/04
    • C07C37/20C07C37/84C07C39/16
    • Processes for producing bisphenols (e.g., bisphenol A (BPA)) having a purity greater than 99.7% are described, such processes including reacting a phenol and acetone in the presence of an acidic catalyst to form a product mixture comprising a bisphenol; removing at least a portion of the bisphenol from the product mixture in the form of a bisphenol/phenol adduct by crystallization, filtration and washing to provide bisphenol/phenol adduct crystals; and removing at least a portion of the phenol from the bisphenol/phenol adduct crystals to provide the bisphenol having a purity of more than 99.7%; wherein the crystallization comprises continuous suspension crystallization and is carried out in at least three crystallization devices arranged such that the product mixture is first cooled in a first stage of the crystallization to a temperature of 50 to 70° C. in a first crystallization device and a second crystallization device connected in parallel, and subsequently cooled in a second stage of the crystallization to a temperature of 40 to 50° C. in a third crystallization device connected downstream in series to the first and second crystallization devices, and wherein a total dwell time of the product mixture in the crystallization is more than 4 hours.
    • 描述了用于生产纯度大于99.7%的双酚(例如双酚A(BPA))的方法,包括在酸性催化剂存在下使苯酚和丙酮反应以形成包含双酚的产物混合物; 通过结晶,过滤和洗涤从双酚/苯酚加合物的形式从产物混合物中除去至少一部分双酚以提供双酚/苯酚加合物晶体; 并从双酚/苯酚加合物晶体中除去至少一部分苯酚,得到纯度大于99.7%的双酚; 其中所述结晶包括连续悬浮液结晶,并且在至少三个结晶装置中进行,所述结晶装置被排列成使得产物混合物在结晶的第一阶段首先在第一结晶装置中冷却至50至70℃, 第二结晶装置并联连接,随后在结晶的第二阶段中在与第一和第二结晶装置串联下游的第三结晶装置中冷却至40至50℃的温度,并且其中总停留时间 的产物混合物在结晶中超过4小时。