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    • 2. 发明申请
    • PROCESS FOR MAKING DIARYL CARBONATE
    • 制备二氧化碳的方法
    • WO2007061480A3
    • 2007-11-01
    • PCT/US2006033882
    • 2006-08-30
    • CATALYTIC DISTILLATION TECH
    • GELBEIN ABRAHAM PRYU J YONG
    • C07C69/96
    • C07C68/06C07C68/08C07C69/96
    • Diphenyl carbonate is produced by reacting phenol with diethyl carbonate in a series of fixed bed reactors each of which is connected at different position on a distillation column via side draw and return streams. The composition of material in a distillation column varies along the length of the column, which is predictable under a given set of conditions of temperature and pressure, thus withdrawing streams at different stages in the column, allows the reactor receiving the feed from a particular stage to be operated under conditions to maximize the desired reaction, while allowing the unreacted or byproduct to go back into the distillation and be sent to a stage (by the equilibrium of the distillation) where they are favorably treated in a reactor.
    • 碳酸二苯酯是通过在一系列固定床反应器中使苯酚与碳酸二乙酯反应制备的,每个固定床反应器通过侧馏分和回流在蒸馏塔上的不同位置连接。 蒸馏塔中材料的组成随着柱长度而变化,这在一定温度和压力条件下是可预测的,因此在塔中的不同阶段取出料流,允许反应器从特定阶段接收进料 在使所需反应最大化的条件下运行,同时使未反应或副产物回到蒸馏中并送入阶段(通过蒸馏的平衡),在反应器中有利地处理它们。
    • 3. 发明申请
    • METHOD OF OPERATING DOWNFLOW BOILING POINT REACTORS IN THE SELECTIVE HYDROGENATION OF ACETYLENES AND DIENES
    • 在乙烯和二氧化碳的选择性加氢中操作下游沸点沸点反应器的方法
    • WO2006110201A3
    • 2007-11-01
    • PCT/US2006003083
    • 2006-01-30
    • CATALYTIC DISTILLATION TECH
    • SMITH LAWRENCE AGELBEIN ABRAHAM P
    • C07C7/167
    • C07C7/167C07C7/163C10G45/34C10G49/002
    • Acetylenes and dienes in a stream containing hydrogen, methane, C 2 -C 6 olefins and paraffins, C 2 -C 6 acetylenes and dienes, benzene, toluene, xylenes, and other C 6 + components are hydrogenated in a downflow boiling point reactor wherein the heat of reaction is absorbed by the liquid in the reactor which produces a vapor. Besides the feed to the reactor there is a recirculating stream which is fed at a rate sufficient to ensure that the catalyst particles within the reactor are wetted. A third stream, which is provided from a second downstream liquid/vapor separator from partially condensed vapor from the first downstream liquid/vapor separator corresponding to the mass evaporated in the reactor, is fed to the reactor. The composition of the third stream controls the steady state composition of the liquid flowing through the reactor.
    • 含有氢,甲烷,C 2 -C 6烯烃和链烷烃,C 2 -C 6烯烃的物流中的乙炔和二烯, 乙炔和二烯,苯,甲苯,二甲苯和其它C 6+组分在下流沸点反应器中氢化,其中反应热被反应器中的液体吸收,产生 汽。 除了进料到反应器之外还有一个再循环流,其进料量足以确保反应器内的催化剂颗粒被润湿。 从第二下游液体/蒸汽分离器提供的第三流体,其与来自在反应器中蒸发的物质相对应的来自第一下游液体/蒸气分离器的部分冷凝的蒸气供给到反应器。 第三流的组成控制流过反应器的液体的稳态组成。
    • 8. 发明申请
    • PROCESS FOR MAKING DIALKYL CARBONATES
    • 制备二烷基碳酸酯的方法
    • WO2005102986A2
    • 2005-11-03
    • PCT/US2005004087
    • 2005-02-10
    • CATALYTIC DISTILLATION TECH
    • RYU J YONGGELBEIN ABRAHAM P
    • C07C68/00C07C69/96
    • C07C68/00C07C69/96
    • A process for the production of dialkyl carbonates from the reaction of alcohol, for example C1-C3 alcohols, with urea is disclosed wherein the water and ammonium carbamates impurities in the feed are removed in a prereactor. The water is reacted with urea in the feed to produce ammonium carbamate which is decomposed along with the ammonium carbamates originally in the feed to ammonia and carbon dioxide. In addition some of the urea is reacted with the alcohol in the first reactor to produce alkyl carbamate which is a precursor to dialkyl carbonate. Dialkyl carbonates are produced in the second reaction zone. The undesired by-product N-alkyl alkyl carbamates are continuously distilled off from the second reaction zone along with ammonia, alcohol and dialkyl carbonates under the steady state reactor operation. N-alkyl alkyl carbamates can be converted to heterocyclic compounds in a third reaction zone to remove as solids from the system.
    • 公开了一种由醇(例如C 1 -C 3醇)与脲的反应制备碳酸二烷基酯的方法,其中在预反应器中将进料中的水和氨基甲酸铵杂质除去。 水与进料中的尿素反应生成氨基甲酸铵,氨基甲酸铵与原料在氨和二氧化碳中的氨基甲酸铵一起分解。 此外,一些尿素与第一反应器中的醇反应以产生作为碳酸二烷基酯的前体的氨基甲酸烷基酯。 在第二反应区产生碳酸二烷基酯。 在稳态反应器操作下,不需要的副产物N-烷基烷基氨基甲酸酯与第二反应区连同蒸馏出氨,醇和碳酸二烷基酯。 N-烷基烷基氨基甲酸烷基酯可以在第三反应区转化成杂环化合物,以从系统中除去固体。