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公开(公告)号：US10144697B2
公开(公告)日：2018-12-04
申请号：US15558287
申请日：2016-03-22
摘要： An alkane-containing stream is reacted to produce an alkene, which is carbonylated to produce an alkyl alkanoate, e.g., methyl propanoate, by a gas phase process comprising the step of contacting under carbonylation conditions the alkene, e.g., ethylene, carbon monoxide, an alkanol, e.g., methanol, and a solid sulfide-based metal catalyst.
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公开(公告)号：US10144693B2
公开(公告)日：2018-12-04
申请号：US15518060
申请日：2015-10-06
摘要： Carboxylic acids are prepared by a one-step gas phase process comprising the step of contacting under halogen-free hydroxycarbonylation conditions an alkene, carbon monoxide, water, and a solid sulfide-containing catalyst.
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公开(公告)号：US10519087B2
公开(公告)日：2019-12-31
申请号：US16304469
申请日：2017-06-13
摘要： The present invention provides methods for making propanal in a reaction comprising the oxidative coupling of methane (OCM) and oxygen as a reactant stream in a gas phase reaction, preferably in the presence of water or steam, to form ethylene, ethane, carbon dioxide (CO2), water and syngas (CO and H2) in a first reactor as an ethylene stream, and then forming propanal in a second reactor by feeding to the second reactor the ethylene stream with the syngas from the first reactor in the gas phase and hydroformylating in the presence of a catalyst for a water shift reaction. In the method, the ratio of H2 to CO in the syngas is maintained by either co-feeding steam into the first reactor or the second reactor to generate additional H2 in the syngas, or by forming CO in the second reactor from the water shift reaction by feeding the CO2 from the ethylene stream into the second reactor.
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公开(公告)号：US09938226B2
公开(公告)日：2018-04-10
申请号：US15022639
申请日：2014-09-11
IPC分类号： C07C67/343 , C07C67/38 , B01J27/043 , B01J27/045
CPC分类号： C07C67/343 , B01J27/043 , B01J27/045 , C07C67/38 , C07C69/24 , C07C69/54
摘要： Alkyl alkanoates, e.g., methyl propionate, are made by a gas phase process comprising the step of contacting under carbonylation conditions an alkene (e.g., ethylene), carbon monoxide, an alkanol (e.g., methanol), and a solid sulfide-based metal catalyst (e.g., iron sulfide). The alkyl alkanoate can be converted in a second step to an alkyl ester of an aliphatic carboxylic acid, e.g., methyl methacrylate, through condensation with an aldehyde, e.g., formaldehyde.
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