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    • 1. 发明授权
    • Processes for preparing hydroxynaphthalenes
    • 制备羟基萘的方法
    • US4783557A
    • 1988-11-08
    • US94883
    • 1987-09-10
    • Yutaka HanedaSadao YoshimotoHisaya MikiMasaaki YasudaShintarou ArakiMasatoshi Nitabaru
    • Yutaka HanedaSadao YoshimotoHisaya MikiMasaaki YasudaShintarou ArakiMasatoshi Nitabaru
    • C07C37/055C07C37/08C07C39/14C07C67/055C07C409/08
    • C07C409/08C07C37/0555C07C37/08C07C407/00
    • Disclosed in accordance with the present invention are processes for the preparation of hydroperoxides and/or carbinols by liquid phase oxidation of secondary alkyl-substituted naphthalenes with molecular oxygen, wherein the oxidation reaction is carried out by dissolving in the reaction mixture containing the secondary alkyl-substituted naphthalenes at least 0.5 ppm in terms of metal, based on the starting secondary alkyl-substituted naphthalenes, of at least one compound of metal selected from the group consisting of palladium and gold, said metal compound being soluble in the reaction mixture of the secondary alkyl-substituted naphthalenes. When compared with the prior art processes using catalysts of non-homogeneous system, therefore, not only the amount of catalyst used can be minimized but also the rate of oxidation can be enhanced, and hence there can be obtained in a short period of time hydroperoxides and/or carbinols in high yields which are the oxidation products in accordance with the present invention.According to the present invention, the desired hydroperoxide can be obtained in high yields as well as in high purity from the hydroperoxides and/or carbinols obtained in the manner as mentioned above.
    • 根据本发明公开的是通过用分子氧液体氧化仲烷基取代的萘来制备氢过氧化物和/或甲醇的方法,其中氧化反应是通过将含有仲烷基取代萘 取代的萘以至少一种选自钯和金的金属化合物为基础,以起始仲烷基取代的萘为基准的金属为至少0.5ppm,所述金属化合物可溶于二级反应混合物 烷基取代的萘。 因此,与使用非均相体系的催化剂的现有技术方法相比,不仅可以使催化剂的使用量最小化,还可以提高氧化速度,因此可以在短时间内获得氢过氧化物 和/或高产率的甲醇,它们是根据本发明的氧化产物。 根据本发明,可以从上述方式获得的氢过氧化物和/或甲醇以高产率和高纯度获得所需的氢过氧化物。
    • 3. 发明授权
    • Process for gas phase polymerization of olefin
    • 烯烃气相聚合方法
    • US5804678A
    • 1998-09-08
    • US273987
    • 1994-07-12
    • Yoshinori MoritaHiroshi NishikawaYutaka HanedaSatoru OhtaniKenji Doi
    • Yoshinori MoritaHiroshi NishikawaYutaka HanedaSatoru OhtaniKenji Doi
    • B01J8/24C08F2/34C08F10/02
    • B01J8/1809B01J8/24C08F10/02B01J2208/00061B01J2208/00088B01J2208/00274B01J2208/00283Y10S526/901Y10S526/943
    • In a gas phase olefin polymerization, an olefin is continuously fed to a fluid bed reactor in which a metallocene catalyst is present. At least one compound selected from water, alcohols and ketones is added in a specified amount simultaneously with the feeding of the olefin. Thus, an olefin polymer having a satisfactory drop second count index as defined by the below indicated formula is produced: ##EQU1## wherein t.sub.0 and t respectively represent a flow time measured in the flow test according to ASTM D-1775 of the olefin polymer obtained when none of the water, alcohols and ketones is incorporated in the reactor, and when at least one compound of water, alcohols and ketones is incorporated in the reactor. The flowability of the polymer formed in the reactor is excellent, so that blocking, bridging and the like do not occur during the gas phase polymerization. Thus, it is feasible to stably produce a (co)polymer having excellent particle properties in high yield for a prolonged period of time.
    • 在气相烯烃聚合中,将烯烃连续进料到存在茂金属催化剂的流化床反应器中。 在进料烯烃的同时,以特定的量加入至少一种选自水,醇和酮的化合物。 因此,制备具有如下式所定义的令人满意的滴二次计数指数的烯烃聚合物:其中t 0和t分别表示在根据ASTM D-1775的流动试验中测量的流动时间,所​​得到的烯烃聚合物 当反应器中并没有加入水,醇和酮时,并且当在反应器中加入至少一种水,醇和酮的化合物时。 在反应器中形成的聚合物的流动性是优异的,因此在气相聚合期间不会发生堵塞,桥接等。 因此,长时间稳定地制备具有优异的粒子特性的(共)聚合物是可行的。