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    • 1. 发明申请
    • METHOD FOR IMPROVING THE QUALITY OF ETHYLENE GLYCOL PRODUCTS
    • 改善乙二醇产品质量的方法
    • US20130331618A1
    • 2013-12-12
    • US14000878
    • 2012-02-24
    • Juntao LiuYuhong ZhangWanmin Wang
    • Juntao LiuYuhong ZhangWanmin Wang
    • C07C29/149
    • C07C29/149C07C29/90Y02P20/52C07C31/202
    • A method for improving the quality of ethylene glycol products, which mainly solves the technical problem of low UV-light transmittance of the ethylene glycol products present in the prior art. The method successfully solves the problem by use of the technical solution wherein the ethylene glycol raw material and hydrogen are passed through a rotating packed bed reactor loaded with solid oxide catalyst at a temperature of about 20 to about 280 ° C., a pressure of about 0.1 to about 4.0 MPa, a space velocity of about 0.2 to about 100.0 hr−1 and a molar ratio of hydrogen to ethylene glycol of from about 0.01 to 40:1, and ethylene glycol is obtained after the reaction. The solid oxide catalyst is at least one of copper-based, nickel-based and palladium-based catalysts, and the rotation rate of the rotating packed bed reactor is about 300 to about 5000 rpm.
    • 一种改善乙二醇产品质量的方法,其主要解决了现有技术中存在的乙二醇产品的紫外光透射率低的技术问题。 该方法通过使用技术方案成功地解决了该问题,其中乙二醇原料和氢气通过装有固体氧化物催化剂的旋转填充床反应器在约20至约280℃的温度下进行,压力约为 0.1至约4.0MPa,空间速度为约0.2至约100.0小时-1,氢与乙二醇的摩尔比为约0.01至40:1,反应后获得乙二醇。 固体氧化物催化剂是铜基,镍基和钯基催化剂中的至少一种,并且旋转填充床反应器的旋转速率为约300至约5000rpm。
    • 2. 发明授权
    • Method for improving the quality of ethylene glycol products
    • 提高乙二醇产品质量的方法
    • US09051236B2
    • 2015-06-09
    • US14000878
    • 2012-02-24
    • Juntao LiuYuhong ZhangWanmin Wang
    • Juntao LiuYuhong ZhangWanmin Wang
    • C07C27/04C07C29/149C07C29/90
    • C07C29/149C07C29/90Y02P20/52C07C31/202
    • A method for improving the quality of ethylene glycol products, which mainly solves the technical problem of low UV-light transmittance of the ethylene glycol products present in the prior art. The method successfully solves the problem by use of the technical solution wherein the ethylene glycol raw material and hydrogen are passed through a rotating packed bed reactor loaded with solid oxide catalyst at a temperature of about 20 to about 280° C., a pressure of about 0.1 to about 4.0 MPa, a space velocity of about 0.2 to about 100.0 hr−1 and a molar ratio of hydrogen to ethylene glycol of from about 0.01 to 40:1, and ethylene glycol is obtained after the reaction. The solid oxide catalyst is at least one of copper-based, nickel-based and palladium-based catalysts, and the rotation rate of the rotating packed bed reactor is about 300 to about 5000 rpm.
    • 一种改善乙二醇产品质量的方法,其主要解决了现有技术中存在的乙二醇产品的紫外光透射率低的技术问题。 该方法通过使用技术方案成功地解决了该问题,其中乙二醇原料和氢气通过装有固体氧化物催化剂的旋转填充床反应器在约20至约280℃的温度下进行,压力约为 0.1至约4.0MPa,空间速度为约0.2至约100.0小时-1,氢与乙二醇的摩尔比为约0.01至40:1,反应后获得乙二醇。 固体氧化物催化剂是铜基,镍基和钯基催化剂中的至少一种,旋转填充床反应器的旋转速度为约300至约5000rpm。
    • 3. 发明授权
    • Method for the production of ethylene glycol
    • 乙二醇生产方法
    • US08962895B2
    • 2015-02-24
    • US14001120
    • 2012-02-24
    • Juntao LiuWeimin YangLei LiWanmin WangLinna ZhangHaifeng Song
    • Juntao LiuWeimin YangLei LiWanmin WangLinna ZhangHaifeng Song
    • C07C29/149B01J8/06
    • C07C29/149B01J8/067B01J2208/0053Y02P20/52C07C31/202
    • The present invention relates to a method for the production of ethylene glycol using a feedstock comprising an oxalate and a catalyst containing copper and/or a copper oxide, comprising contacting the feedstock with the catalyst in a reactor under the conditions of a temperature in the range from about 170 to about 270° C., a weight hourly space velocity of the oxalate in the range from about 0.2 to about 5 h−1, a molar ratio of hydrogen to the oxalate in the range from about 40:1 to about 200:1 and a reaction pressure in the range from about 1.5 to about 10 MPa, to produce an effluent containing ethylene glycol, in which the reactor is a tube-array reactor using partitioned heat exchange and adopting outer and inner tubes configured in a double-tube structure to facilitate the heat exchange of the catalyst.
    • 本发明涉及使用包含草酸盐和含有铜和/或氧化铜的催化剂的原料生产乙二醇的方法,包括在反应器中在等温范围内的温度条件下将反应器与催化剂接触 约170至约270℃,草酸盐的重时空速在约0.2至约5小时-1的范围内,氢与草酸的摩尔比在约40:1至约200的范围内 :1,反应压力在约1.5至约10MPa的范围内,以产生含有乙二醇的流出物,其中反应器是使用分隔热交换的管阵列反应器,并采用配置在双组分中的外管和内管, 管结构以促进催化剂的热交换。
    • 7. 发明授权
    • Process of producing oxalate by CO gas phase method
    • 通过CO气相法生产草酸盐的方法
    • US08921592B2
    • 2014-12-30
    • US13702280
    • 2011-06-09
    • Weimin YangJuntao LiuWanmin WangLei Li
    • Weimin YangJuntao LiuWanmin WangLei Li
    • C07C69/36C07C67/36B01J23/44
    • C07C67/36B01J23/44C07C69/36
    • A process of producing oxalate by CO gas phase method includes the following steps: a) introducing nitrite salt, water and an inorganic acid first into a reactor I to produce a NO containing effluent I; and separating the resultant effluent to obtain the effluent II of NO; b) introducing the effluent II of NO, a C1-C4 alkanol and oxygen into a reactor II to be subjected to the reaction, and separating the resultant effluent to obtain the effluent IV of C1-C4 alkyl nitrites; c) introducing the effluent IV of C1-C4 alkyl nitrites and a CO gas stream into a coupling reactor where they are reacted to produce a NO containing effluent VI. The reactor I and/or the reactor II are preferably rotating supergravity reactors. Therefore, the process is applicable to the industrial production of oxalate by CO gas phase method.
    • 通过CO气相法制备草酸盐的方法包括以下步骤:a)首先将亚硝酸盐,水和无机酸引入反应器I中以产生含NO的流出物I; 并分离出所得的流出物,得到NO的流出物II; b)将NO,C1-C4链烷醇和氧气的流出物II引入待反应的反应器II中,并分离得到的流出物,得到C1-C4烷基亚硝酸盐的流出物IV; c)将C1-C4烷基亚硝酸盐的流出物IV和CO气流引入偶联反应器中,在其中反应生成含NO的流出物VI。 反应器I和/或反应器II优选为旋转超重力反应器。 因此,该方法适用于CO气相法工业生产草酸盐。
    • 9. 发明申请
    • PROCESS OF PRODUCING OXALATE BY CO GAS PHASE METHOD
    • 通过气相法制备氧化铝的方法
    • US20130079549A1
    • 2013-03-28
    • US13702280
    • 2011-06-09
    • Weimin YangJuntao LiuWanmin WangLei Li
    • Weimin YangJuntao LiuWanmin WangLei Li
    • C07C67/36
    • C07C67/36B01J23/44C07C69/36
    • A process of producing oxalate by CO gas phase method includes the following steps: a) introducing nitrite salt, water and an inorganic acid first into a reactor I to produce a NO containing effluent I; and separating the resultant effluent to obtain the effluent II of NO; b) introducing the effluent II of NO, a C1-C4 alkanol and oxygen into a reactor II to be subjected to the reaction, and separating the resultant effluent to obtain the effluent IV of C1-C4 alkyl nitrites; c) introducing the effluent IV of C1-C4 alkyl nitrites and a CO gas stream into a coupling reactor where they are reacted to produce a NO containing effluent VI. The reactor I and/or the reactor II are preferably rotating supergravity reactors. Therefore, the process is applicable to the industrial production of oxalate by CO gas phase method.
    • 通过CO气相法制备草酸盐的方法包括以下步骤:a)首先将亚硝酸盐,水和无机酸引入反应器I中以产生含NO的流出物I; 并分离出所得的流出物,得到NO的流出物II; b)将NO,C1-C4链烷醇和氧气的流出物II引入待反应的反应器II中,并分离得到的流出物,得到C1-C4烷基亚硝酸盐的流出物IV; c)将C1-C4烷基亚硝酸盐的流出物IV和CO气流引入偶联反应器中,在其中反应生成含NO的流出物VI。 反应器I和/或反应器II优选为旋转超重力反应器。 因此,该方法适用于CO气相法工业生产草酸盐。