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公开(公告)号：US11945770B1
公开(公告)日：2024-04-02
申请号：US18179188
申请日：2023-03-06
IPC分类号： C07C319/28 , B01J21/04 , B01J23/882 , B01J23/883 , C07C315/06
CPC分类号： C07C319/28 , B01J21/04 , B01J23/882 , B01J23/883 , C07C319/28 , C07C321/14
摘要： The present disclosure provides for processes and systems for the purification of alkyl sulfide product streams including dimethyl sulfide (DMS). In some aspects, the disclosure provides for the removal of carbon disulfide (CS2) from DMS via hydrolytic catalysis. In further embodiments, the disclosed catalytic processes are performed using mixed-metal catalyst systems such as cobalt-molybdenum (CoMo) and nickel-molybdenum (NiMo) catalyst systems.
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公开(公告)号：US10207974B1
公开(公告)日：2019-02-19
申请号：US15831430
申请日：2017-12-05
发明人： Kenneth M. Lassen
摘要： The present invention discloses processes for producing γ-dicarbonyl compounds by contacting an aldehyde compound, an α,β-unsaturated carbonyl compound, and a catalyst composition in the presence of an amide diluent. The resultant γ-dicarbonyl compounds then can be used to synthesize pyrrole compounds, such as 2,5-dimethylpyrrole.
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公开(公告)号：US10927074B2
公开(公告)日：2021-02-23
申请号：US16709992
申请日：2019-12-11
IPC分类号： C07C319/20 , C07C319/28 , C07C319/14 , C07C319/08 , C07C319/24 , C07C321/14 , C07C323/14
摘要： The present invention discloses processes for producing methyl ethyl sulfide by contacting dimethyl sulfide and diethyl sulfide in the presence of a suitable catalyst. Methyl ethyl sulfide can be used as an odorant in natural gas. Integrated mercaptan and sulfide manufacturing systems and integrated methods for making mercaptans and sulfides also are disclosed.
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4.发明授权公开(公告)号：US09597693B1
公开(公告)日：2017-03-21
申请号：US15358188
申请日：2016-11-22
CPC分类号： B03D1/012 , B03D1/02 , B03D2201/02 , B03D2203/025 , C08F36/04 , C21B15/00 , C22B3/44 , C22B15/0089 , C22B34/34
摘要： The present invention discloses polythiol compositions containing monothiotricyclodecenes, dithiotricyclodecanes, and intermolecular sulfide compounds, as well as mining chemical collector compositions containing such polythiol compositions. Flotation processes for recovering metals, such as copper and molybdenum, from ores using the mining chemical collector compositions also are disclosed.
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5.发明授权Mercaptanized dicyclopentadiene compositions and use thereof as a mining chemical collector 有权巯基二环戊二烯组合物及其用作采矿化学品收集器公开(公告)号：US09539587B1
公开(公告)日：2017-01-10
申请号：US15090643
申请日：2016-04-05
CPC分类号： B03D1/012 , B03D1/02 , B03D2201/02 , B03D2203/025 , C08F36/04 , C21B15/00 , C22B3/44 , C22B15/0089 , C22B34/34
摘要： The present invention discloses polythiol compositions containing monothiotricyclodecenes, dithiotricyclodecanes, and intermolecular sulfide compounds, as well as mining chemical collector compositions containing such polythiol compositions. Flotation processes for recovering metals, such as copper and molybdenum, from ores using the mining chemical collector compositions also are disclosed.
摘要翻译： 本发明公开了含有单硫三环癸烯，二硫三环癸烷和分子间硫化物化合物的多硫醇组合物，以及含有这种多硫醇组合物的采矿化学收集剂组合物。 公开了使用采矿化学品收集器组合物从矿石中回收金属如铜和钼的浮选方法。
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6.发明公开公开(公告)号：US20240083841A1
公开(公告)日：2024-03-14
申请号：US18508596
申请日：2023-11-14
IPC分类号： C07C319/28 , C07C319/06 , C07C319/14
CPC分类号： C07C319/28 , C07C319/06 , C07C319/14 , B01D3/009
摘要： Processes for removing carbon disulfide from product streams containing a sulfide compound are performed by contacting the product stream with an alkanolamine and converting the carbon disulfide to a higher boiling point product, thereby reducing or eliminating carbon disulfide from the product stream. Subsequent removal of the higher boiling point product via distillation can lead to a purified sulfide stream with high purity.
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7.发明授权公开(公告)号：US11845716B2
公开(公告)日：2023-12-19
申请号：US16904681
申请日：2020-06-18
IPC分类号： B01J8/02 , C07C319/06 , C07C319/28 , C07C319/14 , B01D3/00 , B01D3/02 , C07D263/16 , C07D263/22 , C07D277/04
CPC分类号： C07C319/28 , C07C319/06 , C07C319/14 , B01D3/009 , B01D3/02 , B01J8/02 , C07D263/16 , C07D263/22 , C07D277/04 , C07C319/28 , C07C321/14 , C07C319/28 , C07C321/22 , C07C319/06 , C07C323/25
摘要： Processes for removing carbon disulfide from product streams containing a sulfide compound are performed by contacting the product stream with an alkanolamine and converting the carbon disulfide to a higher boiling point product, thereby reducing or eliminating carbon disulfide from the product stream. Subsequent removal of the higher boiling point product via distillation can lead to a purified sulfide stream with high purity.
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公开(公告)号：US20220298109A1
公开(公告)日：2022-09-22
申请号：US17202481
申请日：2021-03-16
发明人： Kenneth M. Lassen
IPC分类号： C07D207/323 , C07C49/12 , C07C45/59 , B01J31/10
摘要： Pyrrole compounds are produced by contacting a furan compound, a solid acid catalyst, and water to form a reaction mixture containing a γ-dicarbonyl compound, and then contacting the γ-dicarbonyl compound with ammonia or an ammonium salt to form a reaction product mixture containing the pyrrole compound. A representative pyrrole compound that can be synthesized using these processes is 2,5-dimethylpyrrole.
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公开(公告)号：US10538488B2
公开(公告)日：2020-01-21
申请号：US16291014
申请日：2019-03-04
IPC分类号： C07C319/20 , C07C319/28 , C07C319/14 , C07C319/08 , C07C319/24 , C07C321/14 , C07C323/14
摘要： The present invention discloses processes for producing methyl ethyl sulfide by contacting dimethyl sulfide and diethyl sulfide in the presence of a suitable catalyst. Methyl ethyl sulfide can be used as an odorant in natural gas. Integrated mercaptan and sulfide manufacturing systems and integrated methods for making mercaptans and sulfides also are disclosed.
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公开(公告)号：US20190270703A1
公开(公告)日：2019-09-05
申请号：US16291018
申请日：2019-03-04
IPC分类号： C07C319/20 , B01J23/882 , B01J21/04
摘要： The present invention discloses methods for synthesizing asymmetrical sulfide compounds and asymmetrical ether compounds from a variety of ether, sulfide, alcohol, and thiol reactants that are contacted in the presence of a suitable catalyst. Conversions of the limiting reactant to the desired asymmetrical sulfide or asymmetrical ether compound generally exceed 50%.
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