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公开(公告)号：US10544077B2
公开(公告)日：2020-01-28
申请号：US16043329
申请日：2018-07-24
发明人： Scott Donald Barnicki , Robert Thomas Hembre , Sumit Chakraborty , Vickie Haygood Osborne , Michael Richard Laningham , Stijn Van de Vyver
摘要： Disclosed is a process for recovering formic acid from a formate ester that allows for recovery of a formic acid product comprising greater than 75 wt. % formic acid. Disclosed is also a process for producing formic acid by carbonylating a carrier alcohol, hydrolyzing the formate ester of the carrier alcohol, and recovering a formic acid product comprising greater than 70 wt. % formic acid. Discloses are carrier alcohols that enable more favorable hydrolysis equilibriums and/or distillation sequences.
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2.发明申请公开(公告)号：US20190039992A1
公开(公告)日：2019-02-07
申请号：US16043308
申请日：2018-07-24
发明人： Sumit Chakraborty , Steven J. Adams , Robert Thomas Hembre , Scott Donald Barnicki , Michael Richard Laningham , Gerarld Wayne Ollis , Randy Lynn Jennings
IPC分类号： C07C69/013 , C07C67/00 , C07C69/003 , C07F15/02 , B01J31/24
CPC分类号： C07C69/013 , B01J31/189 , B01J31/20 , B01J31/24 , B01J2231/49 , B01J2231/641 , B01J2231/763 , B01J2531/0244 , B01J2531/842 , C01B2203/0277 , C01B2203/04 , C01B2203/048 , C07C67/00 , C07C69/003 , C07F15/0046 , C07F15/025 , C07F17/00 , C07C69/06
摘要： A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (>99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.
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公开(公告)号：US20190039985A1
公开(公告)日：2019-02-07
申请号：US16043329
申请日：2018-07-24
发明人： Scott Donald Barnicki , Robert Thomas Hembre , Sumit Chakraborty , Vickie Haygood Osborne , Michael Richard Laningham , Stijn Van de Vyver
IPC分类号： C07C51/09
摘要： Disclosed is a process for recovering formic acid from a formate ester that allows for recovery of a formic acid product comprising greater than 75 wt. % formic acid. Disclosed is also a process for producing formic acid by carbonylating a carrier alcohol, hydrolyzing the formate ester of the carrier alcohol, and recovering a formic acid product comprising greater than 70 wt. % formic acid. Discloses are carrier alcohols that enable more favorable hydrolysis equilibriums and/or distillation sequences.
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公开(公告)号：US10435349B2
公开(公告)日：2019-10-08
申请号：US16043308
申请日：2018-07-24
发明人： Sumit Chakraborty , Steven J. Adams , Robert Thomas Hembre , Scott Donald Barnicki , Michael Richard Laningham , Gerarld Wayne Ollis , Randy Lynn Jennings
IPC分类号： C07C69/013 , C07C69/003 , C07C67/00 , C07F17/00 , C07F15/00 , B01J31/24 , C07F15/02 , B01J31/18 , B01J31/20
摘要： A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (>99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.
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公开(公告)号：US10011485B2
公开(公告)日：2018-07-03
申请号：US15440056
申请日：2017-02-23
发明人： Scott Donald Barnicki , Robert Thomas Hembre , Elaine Beatrice MacKenzie , Joy Lynn Laningham , Michael Richard Laningham , Shane Kipley Kirk , Larry Wayne Blair , Sumit Chakraborty , Venkateswarlu Bhamidi , Guoxiong Hua , John Derek Woollins
IPC分类号： C01B17/02 , C01B17/12 , C07D341/00
CPC分类号： C01B17/0253 , C01B17/0243 , C01B17/12 , C07D341/00
摘要： The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
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公开(公告)号：US11059722B2
公开(公告)日：2021-07-13
申请号：US16807671
申请日：2020-03-03
发明人： Scott Donald Barnicki , Robert Thomas Hembre , Elaine Beatrice Mackenzie , Joy Lynn Laningham , Michael Richard Laningham , Shane Kipley Kirk , Larry Wayne Blair , Sumit Chakraborty , Venkateswarlu Bhamidi , Guoxiong Hua , John Derek Woollins
IPC分类号： C01B17/02 , C01B17/12 , C07D341/00
摘要： The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
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公开(公告)号：US10000380B2
公开(公告)日：2018-06-19
申请号：US15440007
申请日：2017-02-23
发明人： Scott Donald Barnicki , Robert Thomas Hembre , Michael Richard Laningham , Sumit Chakraborty , Venkateswarlu Bhamidi
IPC分类号： C01B17/12 , C07D341/00 , C01B17/02
CPC分类号： C01B17/0253 , C01B17/0243 , C01B17/12 , C07D341/00
摘要： The present invention relates to a method for the manufacture of polymeric sulfur. The method includes reacting a metallasulfur derivative with an oxidizing agent to form polymeric sulfur.
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