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    • 2. 发明授权
    • Method of preparation of a catalyst for acrolein oxidation
    • 制备丙烯醛氧化催化剂的方法
    • US06171998B2
    • 2001-01-09
    • US09158877
    • 1998-09-23
    • Won-Ho LeeKyung-Hwa KangDong-Hyun KoYoung-Chang Byun
    • Won-Ho LeeKyung-Hwa KangDong-Hyun KoYoung-Chang Byun
    • B01J2300
    • B01J37/0036B01J23/8885B01J37/0232
    • Disclosed is a method of producing a carrier catalyst for a use in acrolein oxidation reaction. Metallic salt components of the catalyst including molybdate, vanadate and tungstate are dissolved in water. An additional metallic salt component of the catalyst is added to the aqueous solution of the salts to form a suspension of the catalyst. In the suspension, the total weight of water is about 0.8 to about 5 times of the total weight of the metallic salts in the catalyst. This method of preparing suspension minimizes the amount of water required to dissolve the metallic salts, which reduces the amount of time and energy to be used in evaporating water from the suspension in the following step of obtaining catalyst. Additionally, in obtaining catalyst from the suspension prepared by this method, it is possible to avoid the deterioration of the catalytic performance since less heat is required to evaporate the water. Disclosed also is a method of producing a carrier-retained catalyst. Catalyst particles suspended in the water are split or ground into smaller particles to maintain homogeneous suspension. The suspension is sprayed to an inert carrier while applying heated air flow to remove water and obtain a carrier-retained catalyst.
    • 公开了一种制备用于丙烯醛氧化反应的载体催化剂的方法。 包括钼酸盐,钒酸盐和钨酸盐在内的催化剂的金属盐组分溶解在水中。 将催化剂的另外的金属盐组分加入到盐的水溶液中以形成催化剂的悬浮液。 在悬浮液中,水的总重量为催化剂中金属盐总重量的约0.8至约5倍。 这种制备悬浮液的方法使溶解金属盐所需的水量最小化,这减少了在获得催化剂的后续步骤中从悬浮液蒸发水中使用的时间和能量的量。 此外,在从通过该方法制备的悬浮液中获得催化剂的情况下,可以避免催化性能的劣化,因为需要较少的热量来蒸发水。 还公开了制备载体保留催化剂的方法。 悬浮在水中的催化剂颗粒被分裂或研磨成更小的颗粒以保持均匀的悬浮液。 将悬浮液喷雾到惰性载体上,同时施加加热的空气流以除去水并获得载体保留的催化剂。
    • 3. 发明授权
    • Method of coating a catalyst to a support for use in acrolein oxidation
    • 将催化剂涂布到用于丙烯醛氧化的载体上的方法
    • US06632772B2
    • 2003-10-14
    • US09746773
    • 2000-12-22
    • Won-Ho LeeKyung-Hwa KangDong-Hyun KoYoung-Chang Byun
    • Won-Ho LeeKyung-Hwa KangDong-Hyun KoYoung-Chang Byun
    • B01J2108
    • B01J23/8885B01J37/0036B01J37/0232
    • A method of coating a catalyst to a support for use in acrolein oxidation reaction. Metallic salt components of the catalyst including molybdate, vanadate and tungstate are dissolved in a liquid to form a suspension of particles of the catalyst. The precipitation of the catalyst particles is controlled by homogenizing the catalyst particles suspended in the liquid. The phase separation between the catalyst particles and the liquid can be substantially slowed down by the homogenization. Then the catalyst is coated on an inert support by applying the suspension of the catalyst particles to the support. In the suspension, the total weight of water is about 0.8 to about 5 times of the total weight of the metallic salts in the catalyst. This method of preparing suspension minimizes the amount of the liquid required to dissolve the metallic salts, which reduces the amount of time and energy to be used in evaporating the liquid from the suspension. Additionally, in obtaining catalyst from the suspension prepared by this method, it is possible to avoid the deterioration of the catalytic performance since less heat is required to evaporate the water.
    • 将催化剂涂布在用于丙烯醛氧化反应的载体上的方法。 包括钼酸盐,钒酸盐和钨酸盐在内的催化剂的金属盐组分溶解在液体中以形成催化剂颗粒的悬浮液。 通过使悬浮在液体中的催化剂颗粒均质化来控制催化剂颗粒的沉淀。 催化剂颗粒和液体之间的相分离可以通过均化显着减慢。 然后通过将催化剂颗粒的悬浮液施加到载体上将催化剂涂覆在惰性载体上。 在悬浮液中,水的总重量为催化剂中金属盐总重量的约0.8至约5倍。 这种制备悬浮液的方法使溶解金属盐所需的液体量最小化,这减少了用于从悬浮液蒸发液体的时间和能量的量。 另外,在通过该方法制备的悬浮液中获得催化剂时,可以避免催化性能的劣化,因为需要较少的热来蒸发水。
    • 5. 发明授权
    • Method of producing acrylic acid using a catalyst for acrolein oxidation
    • 使用丙烯醛氧化催化剂生产丙烯酸的方法
    • US06384275B2
    • 2002-05-07
    • US09746875
    • 2000-12-22
    • Won-Ho LeeKyung-Hwa KangDong-Hyun KoYoung-Chang Byun
    • Won-Ho LeeKyung-Hwa KangDong-Hyun KoYoung-Chang Byun
    • C07C5116
    • B01J23/8885B01J37/0036B01J37/0232
    • A method of producing acrylic acid using a catalyst for acrolein oxidation reaction. Metallic salt components of the catalyst including molybdate, vanadate and tungstate are dissolved in water. An additional metallic salt component of the catalyst is added to the aqueous solution of the salts to form a suspension of the catalyst. In the suspension, the total weight of water is about 0.8 to about 5 times of the total weight of the metallic salts in the catalyst. This method of preparing suspension minimizes the amount of water required to dissolve the metallic salts, which reduces the amount of time and energy to be used in evaporating water from the suspension in the following step of obtaining catalyst. Additionally, in obtaining catalyst from the suspension prepared by this method, it is possible to avoid the deterioration of the catalytic performance since less heat is required to evaporate the water. Disclosed also is a method of producing a carrier-retained catalyst. Catalyst particles suspended in the water are split or ground into smaller particles to maintain homogeneous suspension. The suspension is sprayed to an inert carrier while applying heated air flow to remove water and obtain a carrier-retained catalyst.
    • 一种使用丙烯醛氧化反应催化剂生产丙烯酸的方法。 包括钼酸盐,钒酸盐和钨酸盐在内的催化剂的金属盐组分溶解在水中。 将催化剂的另外的金属盐组分加入到盐的水溶液中以形成催化剂的悬浮液。 在悬浮液中,水的总重量为催化剂中金属盐总重量的约0.8至约5倍。 这种制备悬浮液的方法使溶解金属盐所需的水量最小化,这减少了在获得催化剂的后续步骤中从悬浮液蒸发水中使用的时间和能量的量。 此外,在从通过该方法制备的悬浮液中获得催化剂的情况下,可以避免催化性能的劣化,因为需要较少的热量来蒸发水。 还公开了制备载体保留催化剂的方法。 悬浮在水中的催化剂颗粒被分裂或研磨成更小的颗粒以保持均匀的悬浮液。 将悬浮液喷雾到惰性载体上,同时施加加热的空气流以除去水并获得载体保留的催化剂。