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    Processes for the preparation of alkylbenzenes
    1.
    发明授权
    Processes for the preparation of alkylbenzenes 有权

    公开(公告)号：US12240792B2

    公开(公告)日：2025-03-04

    申请号：US18042487

    申请日：2021-08-20

    Applicant: University of Kansas

    Inventor： Mark Brandon Shiflett ,  Rajkumar Kore ,  Aaron M. Scurto

    IPC: C07C2/62 ,  C07C2/54

    Abstract: Processes for alkylating benzene are provided. In embodiments, the process comprises combining benzene, an olefin, and a catalyst composition under conditions to react benzene with the olefin to produce an alkylbenzene, the catalyst composition comprising components selected from the group consisting of an ionic liquid, an acid, and an aromatic; an acid, a base capable of forming an ionic liquid with the acid, and an aromatic; an ionic liquid and an acid; and an acid and a base capable of forming an ionic liquid with the acid. The ionic liquid does not comprise a metal halide and the catalyst composition is free of a metal halide and the aromatic, if present in the catalyst composition, is not the benzene being alkylated.

    PROCESS FOR SEPARATING COMPONENTS OF AZEOTROPIC MIXTURES USING IONIC LIQUIDS
    3.
    发明公开
    PROCESS FOR SEPARATING COMPONENTS OF AZEOTROPIC MIXTURES USING IONIC LIQUIDS 审中-公开

    公开(公告)号：US20240182386A1

    公开(公告)日：2024-06-06

    申请号：US17768287

    申请日：2020-10-13

    Applicant: University of Kansas

    Inventor： Mark Brandon Shiflett ,  Ana Rita Colaco Morais

    IPC: C07C17/386

    CPC classification number: C07C17/386

    Abstract: Processes for separating an azeotropic mixture are provided. In an embodiment, such a process comprises exposing an azeotropic mixture comprising a first (hydro)fluorocarbon and a second (hydro)fluorocarbon to an ionic liquid comprising a cation and a non-fluorinated anion at a temperature and a pressure at which the ionic liquid absorbs more of one of the first and second (hydro)fluorocarbons than another of the first and second (hydro)fluorocarbons as determined on a mass basis to form a (hydro)fluorocarbon-containing ionic liquid and a processed azeotropic mixture.

    PROCESSES FOR THE ACYLATION OF AN AROMATIC COMPOUND
    5.
    发明公开
    PROCESSES FOR THE ACYLATION OF AN AROMATIC COMPOUND 审中-公开

    公开(公告)号：US20230373893A1

    公开(公告)日：2023-11-23

    申请号：US18042559

    申请日：2021-08-20

    Applicant: University of Kansas

    Inventor： Mark Brandon Shiflett ,  Rajkumar Kore ,  Aaron M. Scurto

    IPC: C07C45/46 ,  C07D233/58

    CPC classification number: C07C45/46 ,  C07D233/58

    Abstract: Processes for acylating an aromatic compound are provided. In embodiments, such a process comprises combining an aromatic compound, an acylating agent, and a catalyst composition under conditions to induce acylation of the aromatic compound with the acylating agent, the catalyst composition comprising components selected from the group consisting of a sulfonic acid of formula R—SO3H, wherein R is a linear alkyl group substituted with one or more halogen atoms; an ionic liquid and an acid; an acid and a base capable of forming an ionic liquid with the acid; an ionic liquid, an acid, and an aromatic; and an acid, a base capable of forming an ionic liquid with the acid, and an aromatic. The ionic liquid does not comprise a metal halide and the catalyst composition is free of a metal halide and the aromatic, if present in the catalyst composition, is not the aromatic compound being acylated.

    METHODS FOR RECOVERING METALS FROM METAL-CONTAINING MATERIALS
    9.
    发明申请
    METHODS FOR RECOVERING METALS FROM METAL-CONTAINING MATERIALS 有权

    公开(公告)号：US20210395857A1

    公开(公告)日：2021-12-23

    申请号：US17287258

    申请日：2019-10-22

    Applicant: University of Kansas

    Inventor： Mark Brandon Shiflett ,  David Richard Corbin ,  Ankit Verma

    IPC: C22B7/00 ,  C22B26/12 ,  H01M10/54

    Abstract: Methods for recovering metals from metal-containing materials are provided. The metal-containing material comprises either Co and Li (e.g., an electrode material from a spent lithium ion battery) or Fe and Al (e.g., bauxite). The metal-containing material is exposed to a leaching solution comprising ammonium hydrogen oxalate, oxalic acid, or both, to provide a solid composed of either cobalt oxalate or iron oxalate, and a solution of either lithium oxalate or aluminum oxalate. The solid is processed to provide either cobalt oxide or iron oxide; the solution is processed to provide either a lithium precipitate or an aluminum precipitate, and a filtrate comprising an oxalate; and the filtrate comprising the oxalate is processed to recover ammonium hydrogen oxalate, oxalic acid, or both. The method further comprises repeating the digestion step with the recovered ammonium hydrogen oxalate, the recovered oxalic acid, or both.

    ALKYLATION CATALYST COMPOSITION AND RELATED METHODS
    10.
    发明申请
    ALKYLATION CATALYST COMPOSITION AND RELATED METHODS 有权

    公开(公告)号：US20220410134A1

    公开(公告)日：2022-12-29

    申请号：US17775540

    申请日：2020-11-13

    Applicant: University of Kansas

    Inventor： Mark Brandon Shiflett ,  Rajkumar Kore ,  Aaron M. Scurto

    IPC: B01J31/02 ,  C07C2/62

    Abstract: An alkylation catalyst composition is provided which comprises an acid, an aromatic, and a third component selected from the group consisting of a base capable of forming an ionic liquid with the acid; and an ionic liquid. An alkylation process is also provided which comprises combining the alkylation catalyst composition with a feedstock under conditions to produce an alkylate product for a motor fuel additive. The alkylate product produced by the alkylation process is also provided.

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