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
    • 21. 发明授权
    • Separation of olefins from paraffins using ionic liquid solutions
    • 使用离子液体溶液从石蜡中分离烯烃
    • US06339182B1
    • 2002-01-15
    • US09735176
    • 2000-12-12
    • Curtis L. MunsonLaura C. BoudreauMichael S. DriverWilliam L. Schinski
    • Curtis L. MunsonLaura C. BoudreauMichael S. DriverWilliam L. Schinski
    • C07C700
    • C10G70/002B01J2219/00047B01J2219/00306B01J2219/00599B01J2219/00702B01J2219/0072B01J2219/00759C07B63/00C07C1/0485C07C7/152C07C11/02C10G29/00C40B50/08C40B60/14G01N30/02Y02P30/42
    • Methods for separating olefins from non-olefins, such as parafins, including cycloparaffins, oxygenates and aromatics, are provided. The methods use metal salts to complex olefins, allowing the non-olefins to be separated by a variety of methods, including decantation and distillation. The metal salts are dissolved in ionic liquids, which tend to have virtually no vapor pressure, and which poorly solubilize the non-olefins. Accordingly, the non-olefins phase separate well, and can be distilled without carrying over any of the ionic liquid into the distillate. Preferred salts are Group IB salts, more preferably silver salts. A preferred silver salt is silver tetrafluoroborate. Preferred ionic liquids are those which form stable solutions or dispersions of the metal salts, and which do not dissolve the non-olefins. Further, if the olefins are subject to isomerization, the ionic liquid is preferably relatively non-acidic. The methods involve forming a solution of a suitable olefin-complexing salt in an appropriate ionic liquid. An olefin-containing mixture is contacted with the ionic liquid/salt solution, and the olefins are adsorbed. After the paraffins are removed, the olefins can be isolated by desorption. The olefin-containing mixture can be in the gas phase, or in the liquid phase. The flow of olefin-containing mixtures over/through the ionic liquid can be, for example, co-current, counter-current, or staged in stirred tanks. Countcrcurrent is preferred as it is the most efficient. The methods can be optimized using combinatorial chemistry.
    • 提供了从非烯烃分离烯烃的方法,如石蜡包括环烷烃,含氧化合物和芳族化合物。 该方法使用金属盐来络合烯烃,允许通过各种方法分离非烯烃,包括倾析和蒸馏。 金属盐溶解在离子液体中,其倾向于几乎不具有蒸气压,并且使非烯烃的溶解性差。 因此,非烯烃相分离井,并且可以蒸馏而不将任何离子液体输送到馏出物中。 优选的盐是IB族盐,更优选银盐。 优选的银盐是四氟硼酸银。 优选的离子液体是形成金属盐的稳定溶液或分散体并且不溶解非烯烃的离子液体。 此外,如果烯烃经历异构化,离子液体优选是相对非酸性的。 所述方法包括在合适的离子液体中形成合适的烯烃络合盐的溶液。 使含烯烃的混合物与离子液体/盐溶液接触,并且吸附烯烃。 在除去石蜡之后,可以通过解吸分离烯烃。 含烯烃的混合物可以处于气相或液相中。 通过离子液体的/通过离子液体的含烯烃混合物的流动可以是例如在搅拌釜中的并流,逆流或分段。 Countcrcurrent是首选,因为它是最有效的。 该方法可以使用组合化学方法进行优化。