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公开(公告)号：WO2022046543A1
公开(公告)日：2022-03-03
申请号：PCT/US2021/046857
申请日：2021-08-20
申请人： UNIVERSITY OF KANSAS
IPC分类号： C07C309/03 , C07C309/05 , C07C2/62
摘要： Alkane multi-sulfonic acids and salts thereof are provided. In embodiments, an alkane multi-sulfonic acid or salt thereof comprises an alkyl group and at least two sulfonic acid groups, the alkane multi-sulfonic acid having a total number of carbon atoms of from 2 to 9, wherein the alkane multi-sulfonic acid does not comprise a halogen.
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公开(公告)号：WO2020086509A1
公开(公告)日：2020-04-30
申请号：PCT/US2019/057319
申请日：2019-10-22
申请人： UNIVERSITY OF KANSAS
摘要： 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.
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公开(公告)号：WO2022046552A1
公开(公告)日：2022-03-03
申请号：PCT/US2021/046882
申请日：2021-08-20
申请人： UNIVERSITY OF KANSAS
摘要： 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.
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公开(公告)号：WO2022046540A1
公开(公告)日：2022-03-03
申请号：PCT/US2021/046835
申请日：2021-08-20
申请人： UNIVERSITY OF KANSAS
IPC分类号： C07C309/02 , C07C309/01 , C07C303/02 , C07C303/20 , C07C303/04 , A01N41/04
摘要： Haloalkane sulfonic acids and salts thereof are provided. In embodiments, a haloalkane sulfonic acid or salt thereof comprises an alkyl group, at least one sulfonic acid group, and one or more halogens selected from Cl, Br, I, and F, the haloalkane sulfonic acid having a total number of carbon atoms of from 2 to 9, and wherein if at least one F atom is present, the haloalkane sulfonic acid comprises at least one other halogen selected from Cl, Br, and I. Methods of making and using the haloalkane sulfonic acids/salts are also provided.
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公开(公告)号：WO2021076480A1
公开(公告)日：2021-04-22
申请号：PCT/US2020/055338
申请日：2020-10-13
申请人： UNIVERSITY OF KANSAS
IPC分类号： C07C17/383 , C07C19/03 , C07C21/18
摘要： 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.
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