会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Pyridine/picoline production process
    • 吡啶/甲基吡啶生产工艺
    • US5969143A
    • 1999-10-19
    • US2363
    • 1997-12-31
    • Arthur ChesterScott HanDominick N. MazzoneChaya R. Venkat
    • Arthur ChesterScott HanDominick N. MazzoneChaya R. Venkat
    • C07D213/06C07B61/00C07C211/00C07D213/08C07D213/10C07D213/14C07G213/09
    • C07C211/00C07D213/06C07D213/08C07D213/10C07D213/14C07B61/00
    • There is provided a high efficiency base synthesis process for shape selective production of pyridine and picoline products from ammonia and C.sub.1-5 carbonyl compounds. The process includes reacting ammonia and at least one C.sub.1-5 carbonyl reactant under suitable reaction conditions of temperature, pressure, and space velocity in the presence of a catalyst comprising a molecular sieve to produce a primary product comprising pyridine or picoline products and polyalkylpyridines or other higher molecular weight aromatic species, separating and collecting the pyridine or picoline products from the polyalkylpyridines or other higher molecular weight aromatic species, and circulating the polyalkylpyridines or other higher molecular weight aromatic species to the same or another catalyst under conversion conditions to yield additional pyridine or picoline products with substantially reduced amounts of polyalkylpyridines or other higher molecular weight aromatic species.
    • 提供了一种从氨和C 1-5羰基化合物形成选择性生产吡啶和甲基吡啶产物的高效碱基合成方法。 该方法包括在包含分子筛的催化剂存在下,在温度,压力和空间速度的合适反应条件下使氨和至少一种C 1-5羰基反应物反应,以产生包含吡啶或甲基吡啶产物和聚烷基吡啶或其它 较高分子量的芳族物质,从聚烷基吡啶或其它较高分子量的芳族物质中分离和收集吡啶或甲基吡啶产物,并将多烷基吡啶或其它较高分子量的芳族物质在转化条件下循环至相同或另一种催化剂,以产生额外的吡啶或 具有大量减少量的聚烷基吡啶或其它较高分子量芳族物质的甲基吡啶产物。
    • 7. 发明授权
    • Process for making alkylated polycyclic aromatics
    • 制备烷基化多环芳烃的方法
    • US5302769A
    • 1994-04-12
    • US986187
    • 1992-12-07
    • David O. MarlerDominick N. MazzoneL. Deane Rollmann
    • David O. MarlerDominick N. MazzoneL. Deane Rollmann
    • C07C6/12C10G29/20C07C2/66C07C15/24C07C15/27
    • C07C6/126C10G29/205
    • A polycyclic aromatic is contacted with an alkyl-substituted single ring aromatic, such as toluene, o-, m- or p-xylene or mesitylene, over a catalyst comprising a zeolite, such as zeolite beta, USY or ZSM-5 to alkylate the polycyclic aromatic. The polycyclic aromatic can be a fused polynuclear aromatic, e.g. phenanthrene, or an assembly of two or more cyclic systems, e.g. biphenyl. The polycyclic aromatic can also include carbocyclic systems such as fluorene and naphthalene or heterocyclic systems such as benzothiophene and dibenzothiophene. The polycyclic aromatic can be derived from a cycle oil, coker gas oil, extract of lubricant solvent refining or crude distillate fraction. The transalkylating agent can be derived from a reformate, pyrolysis gasoline or coker naphtha.
    • 使多环芳族化合物与烷基取代的单环芳族化合物如甲苯,邻 - ,间 - 或对 - 二甲苯或均三甲苯在包含沸石如β沸石,USY或ZSM-5沸石的催化剂上接触,将 多环芳香族。 多环芳族化合物可以是稠合多核芳族化合物。 菲或两个或更多个环状体系的组合,例如。 联苯。 多环芳族还可以包括碳环体系如芴和萘,或杂环体系如苯并噻吩和二苯并噻吩。 多环芳烃可以衍生自循环油,焦化瓦斯油,润滑剂溶剂精制或粗馏分馏提取物。 烷基转移剂可以由重整油,热解汽油或焦化石脑油衍生而来。