公开(公告)号：US6063943A

公开(公告)日：2000-05-16

申请号：US209535

申请日：1998-12-11

申请人： Son Ki Ihm ,  Chang Gun Oh ,  Jou Hyeon Ahn ,  Jong Chan Kim ,  David C. Sherrington

发明人： Son Ki Ihm ,  Chang Gun Oh ,  Jou Hyeon Ahn ,  Jong Chan Kim ,  David C. Sherrington

IPC分类号： B01J23/20 ,  B01J23/28 ,  B01J23/30 ,  B01J31/08 ,  B01J31/16 ,  B01J31/22 ,  B01J37/02 ,  C07D301/12 ,  C07D301/14 ,  C07D301/19

CPC分类号： B01J31/1658 ,  B01J31/08 ,  B01J31/1805 ,  B01J31/2208 ,  B01J31/2234 ,  B01J37/0203 ,  C07D301/12 ,  C07D301/14 ,  C07D301/19 ,  B01J2231/72 ,  B01J2531/46 ,  B01J2531/56 ,  B01J2531/64 ,  B01J2531/66 ,  Y02P20/584

摘要： The present invention relates to a heterogeneous polyimide-supported transition metal complex catalyst for epoxidation of olefin, which is prepared by impregnating a heat- and acid-resistant polyimide resin with a homogeneous metal catalyst of molybdenum, vanadium, tungsten or titanium, and a process for preparing epoxy compounds using the same. The heterogeneous polyimide-supported transition metal complex catalyst of the invention provides superior catalytic activity, selectivity and stability in the epoxidation of higher olefin. Further, the catalyst of the invention has strong resistance against heat and acid. Besides, the catalyst of the invention may provide the following advantages which are critical in industrial use: it permits relatively high yield of epoxy compounds; and, it can be easily separated from the reaction product, which eases recycling of the catalyst.

摘要翻译： 本发明涉及通过用均匀的钼，钒，钨或钛的金属催化剂浸渍耐热和耐酸的聚酰亚胺树脂制备的用于烯烃环氧化的异质聚酰亚胺负载的过渡金属络合物催化剂，以及方法 用于制备使用其的环氧化合物。 本发明的异质聚酰亚胺负载的过渡金属络合物催化剂在高级烯烃的环氧化中提供优异的催化活性，选择性和稳定性。 此外，本发明的催化剂对热和酸具有很强的耐受性。 此外，本发明的催化剂可以提供在工业应用中至关重要的以下优点：它允许相对高的环氧化合物的产率; 并且可以容易地从反应产物中分离，这简化了催化剂的再循环。

公开(公告)号：US06541527B1

公开(公告)日：2003-04-01

申请号：US09483912

申请日：2000-01-18

申请人： Son Ki Ihm ,  Chang Gun Oh ,  Jou Hyeon Ahn ,  Jin Eun Jang

发明人： Son Ki Ihm ,  Chang Gun Oh ,  Jou Hyeon Ahn ,  Jin Eun Jang

IPC分类号： C08J936

CPC分类号： C08J9/20

摘要： The present invention relates to a process for preparing post-crosslinked polymer bead with increased surface area and pore volume, and suitable pore size, allowing the separation of organic compounds by post-crosslinking gel-type copolymer bead whose crosslinking degree is low and initial surface area is small, or macroporous-type copolymer bead whose crosslinking degree is high and initial surface area is intermediate in the presence of a Friedel-Crafts catalyst, and polymer beads produced thereby. Though the surface area and pore volume of polymer beads may be varied depending on physical properties of copolymer beads and Friedel-Crafts reaction conditions, the present invention provides polymer beads with larger surface area than that of commercially available polymeric adsorbents produced by the conventional method employing a porogen only. Further, the polymer beads may be used as polymeric adsorbent and catalyst carrier, since they exhibit a high adsorption capacity for organic compounds in an aqueous solution, and chemically modified ones may be employed as polymer carrier, ion-exchange resin, and chelate resin.

摘要翻译： 本发明涉及一种制备具有增加的表面积和孔体积以及合适孔径的后交联聚合物珠粒的方法，允许通过后交联凝胶型共聚物珠粒分离有机化合物，其交联度低，初始表面 面积小，或者在Friedel-Crafts催化剂存在下交联度高，初期表面积中等的大孔型共聚物珠粒，以及由此产生的聚合物珠粒。 虽然聚合物珠粒的表面积和孔体积可以根据共聚物珠粒和Friedel-Crafts反应条件的物理性质而变化，但是本发明提供了具有比通过常规方法采用的市售聚合物吸附剂更大的表面积的聚合物珠粒 只有造孔剂。 此外，聚合物珠可以用作聚合物吸附剂和催化剂载体，因为它们在水溶液中表现出对有机化合物的高吸附能力，并且化学改性的聚合物珠可以用作聚合物载体，离子交换树脂和螯合树脂。