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    • 7. 发明授权
    • Non-polluting oxyhydrochlorination process
    • 无污染的氢氯化过程
    • US4255359A
    • 1981-03-10
    • US28380
    • 1979-04-09
    • Jean-Pierre Brunelle
    • Jean-Pierre Brunelle
    • B01J23/00B01J23/40C01B7/01C07C17/00C07C17/15C07C17/156C07C17/38C07C19/045C07C67/00C07C21/00
    • C07C17/38B01J23/40C01B7/01C07C17/15C07C17/156
    • A non-polluting oxyhydrochlorination process is provided in which the residual gaseous effluents are purified by catalytic oxidation in the presence of a catalyst comprising platinum and/or iridium deposited on a special alumina support of eta crystallographic structure and then washing the effluent before being discharged into the atmosphere.The process of the invention is particularly applicable to a residual effluent containing essentially carbon monoxide, carbon dioxide, ethylene, 1,2-dichloroethane, and at least one chlorinated hydrocarbon from among the group consisting of chloroform, carbon tetrachloride, ethyl chloride, 1,1-dichloroethane, 1,1,1- and 1,1,]-trichloroethanes, 1,1,2,2- and 1,1,1,2- tetrachloroethanes, vinyl chloride, 1,1- and 1,2-dichloroethylenes, trichloroethylene, perchloroethylene and chloral.
    • 提供了一种无污染的含氧氯化方法,其中残留的气态流出物在催化剂的存在下通过催化剂进行纯化,所述催化剂包含沉积在特殊氧化铝载体上的铂和/或铱结构的催化剂,然后在排出之前洗涤流出物 气氛。 本发明的方法特别适用于基本上含有一氧化碳,二氧化碳,乙烯,1,2-二氯乙烷和至少一种氯仿,氯仿,四氯化碳,氯乙烷,1,1-二氯乙烷, 1,1-二氯乙烷,1,1,1- 1,1,1-三氯乙烷,1,1,2,2-和1,1,1,2-四氯乙烷,氯乙烯,1,1-和1,2-二氯乙烷, 二氯乙烯,三氯乙烯,全氯乙烯和氯醛。
    • 8. 发明授权
    • Hydrodealkylation of alkylaromatic hydrocarbons
    • 烷基芳烃的加氢脱烷基化
    • US4138443A
    • 1979-02-06
    • US808312
    • 1977-06-20
    • Jean-Pierre Brunelle
    • Jean-Pierre Brunelle
    • B01J23/00B01J23/89B01J35/10C07B61/00C07C1/00C07C4/18C07C15/00C07C67/00C07C3/58
    • B01J35/10B01J23/89C07C4/18B01J35/1019B01J35/1042C07C2521/04C07C2523/06C07C2523/42C07C2523/44C07C2523/46C07C2523/72C07C2523/745C07C2523/75C07C2523/755
    • A process for hydrodealkylating alkyl-substituted aromatic hydrocarbons, e.g., toluene, by reaction with hydrogen in the absence of water vapor under relatively mild reaction conditions, and a catalyst therefor are disclosed. The process is effected at a temperature of from about 450.degree. and 650.degree. C., preferably from about 520.degree. to 620.degree. C., and pressures of from about 1 to about 30, preferably from about 5 to about 20 bar, and a liquid hourly space velocity of from about 1 to about 10, preferably from about 3 to about 8, in the presence of a catalyst which comprises a metal combination of rhodium and at least one metal selected from the group consisting of copper, nickel, cobalt, iron, and zinc, and a support comprising activated alumina having a specific surface of between about 100 and about 350 m.sup.2 /g and a total pore volume of from about 0.5 to about 0.8 cm.sup.3 /g.The activated alumina support may comprise agglomerates of active alumina obtainable by dehydrating alumina hydrate in a stream of hot gas. The agglomerates also may be previously autoclaved in an acid or neutral aqueous medium.
    • 公开了通过在相对温和的反应条件下在不存在水蒸汽的情况下与氢反应而将烷基取代的芳族烃例如甲苯加氢脱烷基化的方法及其催化剂。 该方法在约450℃和650℃,优选约520℃至620℃的温度和约1至约30℃,优选约5至约20巴的温度下进行, 在催化剂的存在下,液体时空速为约1至约10,优选约3至约8,所述催化剂包含铑和至少一种选自铜,镍,钴, 铁和锌,以及包含活性氧化铝的载体,其具有约100至约350m 2 / g的比表面积和约0.5至约0.8cm 3 / g的总孔体积。