-
公开(公告)号:US09233944B2
公开(公告)日:2016-01-12
申请号:US14409503
申请日:2013-06-27
Applicant: UNIVERSITY OF KANSAS
Inventor: Bala Subramaniam , Anand Ramanathan , Madhav Ghanta , Wenjuan Yan
IPC: C07D301/19 , C07D301/12
CPC classification number: C07D301/19 , C07D301/12
Abstract: A process for epoxidizing an olefin comprising contacting an olefin with an oxidant in the presence of an insoluble oxidation catalyst in a solvent system comprising an organic water-miscible solvent to form an alkylene oxide. The insoluble oxidation catalyst comprises a metal, preferably selected from the group consisting of tungsten, cerium, and niobium. The metal is directly incorporated within a solid mesoporous silicate support, such as one selected from the group consisting of KIT-5, KIT-6, and TUD-1.
Abstract translation: 一种使烯烃环氧化的方法,包括使烯烃与氧化剂在不溶性氧化催化剂存在下在包含有机水混溶性溶剂的溶剂体系中接触以形成烯化氧。 不溶性氧化催化剂包含优选选自钨,铈和铌的金属。 将金属直接掺入固体介孔硅酸盐载体中,例如选自KIT-5,KIT-6和TUD-1的一种。
-
公开(公告)号:US20220220002A1
公开(公告)日:2022-07-14
申请号:US17572920
申请日:2022-01-11
Applicant: University of Kansas
Inventor: Mark Brandon Shiflett , David Richard Corbin , Andrew M. Danby , Bala Subramaniam
IPC: C01G23/053
Abstract: Provided are processes for producing metal oxides, including pigmentary TiO2. In embodiments, a process for producing a metal oxide comprises combining a metal halide and an oxidant in a liquid phase medium under conditions to oxidize the metal halide in the liquid phase medium to produce a metal oxide therefrom.
-
公开(公告)号:US12194451B2
公开(公告)日:2025-01-14
申请号:US16964333
申请日:2019-01-24
Applicant: University of Kansas
Inventor: Bala Subramaniam , Anand Ramanathan , Hongda Zhu
IPC: B01J35/64 , B01J21/06 , B01J23/30 , B01J29/03 , B01J29/89 , B01J35/61 , B01J37/00 , B01J37/04 , B01J37/10 , C07C1/24 , C07C41/09
Abstract: Bimetal-incorporated mesoporous silicate catalysts are provided. In embodiments, such a catalyst comprises a silicate lattice, a first transition metal M, and a second transition metal M′, wherein M and M′ are selected from Zr, Nb, and W and are directly incorporated into the silicate lattice such that M and M′ replace Si atoms. Methods of using the catalysts are also provided, including in methods for dehydrating alcohols. Methods of making the catalysts are also provided.
-
公开(公告)号:US20240124379A1
公开(公告)日:2024-04-18
申请号:US18278329
申请日:2022-03-08
Applicant: University of Kansas
Inventor: Bala Subramaniam , Hongda Zhu , Timothy A. Jackson
IPC: C07C29/48
CPC classification number: C07C29/48
Abstract: Processes for oxidizing alkanes are provided. In embodiments, such a process comprises combining an alkane, e.g., isobutane, and ozone in a liquid phase medium comprising a protic additive, e.g., water, under conditions sufficient to oxidize the alkane to products comprising a hydroxylate.
-
公开(公告)号:US11926532B2
公开(公告)日:2024-03-12
申请号:US17572920
申请日:2022-01-11
Applicant: University of Kansas
Inventor: Mark Brandon Shiflett , David Richard Corbin , Andrew M. Danby , Bala Subramaniam
IPC: C01G23/053
CPC classification number: C01G23/053
Abstract: Provided are processes for producing metal oxides, including pigmentary TiO2. In embodiments, a process for producing a metal oxide comprises combining a metal halide and an oxidant in a liquid phase medium under conditions to oxidize the metal halide in the liquid phase medium to produce a metal oxide therefrom.
-
公开(公告)号:US20210262103A1
公开(公告)日:2021-08-26
申请号:US17255059
申请日:2019-07-05
Applicant: University of Kansas
Inventor: James D. Blakemore , Kevin C. Leonard , Bala Subramaniam
Abstract: Processes for the electrochemical reduction of CO2 are provided. In an embodiment, such a process comprises passing a current through a CO2 expanded liquid medium under a pressure greater than 0.2 MPa and less than 7.4 MPa in the presence of a catalyst to reduce and convert CO2 to one or more products, wherein the CO2 expanded liquid medium comprises dissolved CO2, a liquid solvent, and a dissolved electrolyte, and wherein the liquid solvent and the dissolved electrolyte are selected to provide a concentration of the dissolved CO2 of at least 2 M at the pressure.
-
公开(公告)号:US20210039077A1
公开(公告)日:2021-02-11
申请号:US16964333
申请日:2019-01-24
Applicant: University of Kansas
Inventor: Bala Subramaniam , Anand Ramanathan , Hongda Zhu
Abstract: Bimetal-incorporated mesoporous silicate catalysts are provided. In embodiments, such a catalyst comprises a silicate lattice, a first transition metal M, and a second transition metal M′, wherein M and M′ are selected from Zr, Nb, and W and are directly incorporated into the silicate lattice such that M and M′ replace Si atoms. Methods of using the catalysts are also provided, including in methods for dehydrating alcohols. Methods of making the catalysts are also provided.
-
公开(公告)号:US10745335B2
公开(公告)日:2020-08-18
申请号:US16317173
申请日:2017-07-13
Applicant: University of Kansas
Inventor: Bala Subramaniam , Andrew M. Danby , Michael D. Lundin
Abstract: A method for processing lignin may comprise flowing a lignin composition comprising a lignin polymer and a solvent through a reaction chamber of a continuous flow reactor, the lignin polymer comprising hydroxycinnamic groups bound to a polymeric backbone; flowing ozone through the reaction chamber containing the lignin composition under conditions to maximize oxidative cleavage of the hydroxycinnamic groups to produce one or more types of aromatic monomers while minimizing oxidative cleavage of the polymeric backbone; and collecting the one or more types of aromatic monomers, e.g., by a size-selective membrane separation device.
-
19.
公开(公告)号:US20190134585A1
公开(公告)日:2019-05-09
申请号:US16099806
申请日:2017-05-08
Applicant: Boron Nitride Power, LLC , University of Kansas
Inventor: Karoly Nemeth , Andrew M. Danby , Bala Subramaniam
IPC: B01J3/00 , C01B32/19 , C01B21/064 , C01B19/04 , C01B17/20 , C01B32/90 , C01B21/082 , C01B21/06
Abstract: A method that uses a pressurized reactive medium composed of inert solvents such as pressurized liquid or supercritical fluid carbon dioxide (C02), and sulfur hexafluoride (SF6) and reactive dissolved species ozone (03) and/or boron trifluoride (BF3) and general boron trihalogenides (BX3) to react with two-dimensional (2D) layered materials and thereby synthesize covalently oxygen and/or BX3 functionalized exfoliated 2D layered materials. When 2D layered materials are dispersed in these reactive liquids or fluids by ultrasound sonication or high shear mixing, a simultaneous covalent functionalization and exfoliation of the 2D layered materials happens. Following attainment of the required extent of functionalization and exfoliation, the unreacted 03, BX3, SF6 and C02 can be easily removed as gases by decompression leaving behind the solid phase, thereby leading to efficient and economical production of functionalized and exfoliated 2D layered materials.
-
-
-
-
-
-
-
-