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
    • 23. 发明授权
    • Iso/normal paraffin separation by membrane extraction
    • Iso /正常石蜡分离膜提取
    • US5107059A
    • 1992-04-21
    • US622689
    • 1990-12-05
    • Tan-Jen ChenJames R. Sweet
    • Tan-Jen ChenJames R. Sweet
    • C07C7/144
    • C07C7/144
    • Non-normal, branched paraffins (isoparaffins) are separated from hydrocarbon feeds comprising mixtures of isoparaffins and normal paraffins by the procedure involving the steps of contacting the hydrocarbon feed with one face of a non-selective, microporous partition barrier membrane while simultaneously contacting the opposite face of said membrane, preferably in countercurrent flow, with a polar solvent. The isoparaffins in the feed selectively permeate across the porous partition barrier membrane in response to the polar solvent to the solvent side of the membrane whereby a permeate enriched in isoparaffins and a retentate of decreased isoparaffin content as compared to the feed are obtained.
    • 通过包括使烃进料与非选择性微孔隔壁隔离膜的一面接触的步骤,将包含异链烷烃和正链烷烃的混合物的非正构支链烷烃(异链烷烃)与包含异链烷烃和正链烷烃的混合物分离,同时使相反的 所述膜的表面,优选以逆流流动,与极性溶剂反应。 进料中的异链烷烃选择性渗透多孔分隔阻隔膜,以响应于极性溶剂到膜的溶剂侧,从而获得富含异链烷烃的渗透物和与进料相比降低的异链烷烃含量的渗余物。
    • 29. 发明授权
    • Zeolite catalyst activity enhancement by aluminum phosphate and
phosphorus
    • 沸石催化剂活性提高磷酸铝和磷
    • US6080303A
    • 2000-06-27
    • US38649
    • 1998-03-11
    • Guang CaoLuc R. M. MartensJeffrey L. WhiteTan-Jen ChenMatu J. Shah
    • Guang CaoLuc R. M. MartensJeffrey L. WhiteTan-Jen ChenMatu J. Shah
    • B01J29/84B01J27/16B01J29/06C10G11/05C10G11/18
    • C10G11/05B01J27/16B01J29/06
    • The present invention provides a process for improving the catalytic activity of small and medium pore acidic zeolite catalyst which comprises the steps of treating a zeolite with a phosphorus compound to form a phosphorus treated zeolite and combining the phosphorus treated zeolite with AlPO.sub.4. Optionally the phosphorus treated zeolite is calcined. The step of combining the zeolite with AlPO.sub.4 may optionally be followed by steaming the combined catalyst. Examples of useful phosphorus containing compounds useful in treating the zeolite include phosphoric acid, ammonium mono or dihydrogen phosphate, organic phosphites, and organophosphines. Preferably the phosphorus containing compound is an ammonium acid phosphate. An additional alternate embodiment provides a process for increasing the hydrothermal stability of a zeolite catalyst which comprises first treating a zeolite with a phosphorus containing compound then blending with AlPO.sub.4. The catalyst of the invention may be combined with other catalysts or used alone. The invention may be used in a process for cracking hydrocarbons which comprises contacting a hydrocarbon feedstock with a catalyst prepared as described above.
    • 本发明提供了改善中孔酸性沸石催化剂的催化活性的方法,其包括用磷化合物处理沸石以形成磷处理的沸石并将磷处理的沸石与AlPO 4组合的步骤。 任选地,将经磷处理的沸石煅烧。 将沸石与AlPO 4组合的步骤可以任选地随后蒸合组合的催化剂。 可用于处理沸石的含磷化合物的实例包括磷酸,磷酸一铵或二磷酸酯,有机亚磷酸酯和有机膦。 含磷化合物优选为磷酸铵。 另外的替代实施方案提供了一种提高沸石催化剂的水热稳定性的方法,其包括首先用含磷化合物处理沸石,然后与AlPO 4共混。 本发明的催化剂可与其它催化剂组合使用或单独使用。 本发明可用于裂解烃的方法,其包括使烃原料与如上所述制备的催化剂接触。