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公开(公告)号：EP0174898A3
公开(公告)日：1986-05-28
申请号：EP85630145
申请日：1985-09-03
发明人： Wideman, Lawson Gibson , Hsu, Wen-Liang , Maly, Neil Arthur , Matrans, Barry Allen , Strozier, Robert William
IPC分类号： C07C01/253 , B01J27/16 , C07C11/12
CPC分类号： C07C1/24 , B01J27/16 , C07C2527/167 , C07C11/12 , C07C11/18
摘要： @ This invention is directed to a process for the conversion of an aldehyde to a diolefin comprising contacting an aldehyde of 4 to 6 carbon atoms in the vapor phase at a temperature of 300° to 400°C with a catalyst comprising boron phosphate wherein the initial molar ratio of phosphorous (P) to boron (B) (P/B) is less than 0.1 but greater than 0.6 which is in intimate admixture with from 0.1 to 10 weight percent graphite. More specifically, this invention is concerned with a process for the catalytic dehydration of 2-methylbutanal (2MBA) to isoprene in the vapor phase with a boron phosphate catalyst wherein the improvement comprises the use of a catalyst with a molar ratio of P/B of less than 0.1 but greater than 0.6 which contains from 0.1 to 10 weight percent graphite and 0 to 10 mole percent, based on moles of boron, of ammonia or an amine selected from the group consisting of mono-, di- and/or tri- alkyl amines of 1 to 10 carbon atoms.
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公开(公告)号：EP0174898B1
公开(公告)日：1989-01-11
申请号：EP85630145.2
申请日：1985-09-03
发明人： Wideman, Lawson Gibson , Hsu, Wen-Liang , Maly, Neil Arthur , Matrans, Barry Allen , Strozier, Robert William
CPC分类号： C07C1/24 , B01J27/16 , C07C2527/167 , C07C11/12 , C07C11/18
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公开(公告)号：EP0174898A2
公开(公告)日：1986-03-19
申请号：EP85630145.2
申请日：1985-09-03
发明人： Wideman, Lawson Gibson , Hsu, Wen-Liang , Maly, Neil Arthur , Matrans, Barry Allen , Strozier, Robert William
CPC分类号： C07C1/24 , B01J27/16 , C07C2527/167 , C07C11/12 , C07C11/18
摘要： @ This invention is directed to a process for the conversion of an aldehyde to a diolefin comprising contacting an aldehyde of 4 to 6 carbon atoms in the vapor phase at a temperature of 300° to 400°C with a catalyst comprising boron phosphate wherein the initial molar ratio of phosphorous (P) to boron (B) (P/B) is less than 0.1 but greater than 0.6 which is in intimate admixture with from 0.1 to 10 weight percent graphite. More specifically, this invention is concerned with a process for the catalytic dehydration of 2-methylbutanal (2MBA) to isoprene in the vapor phase with a boron phosphate catalyst wherein the improvement comprises the use of a catalyst with a molar ratio of P/B of less than 0.1 but greater than 0.6 which contains from 0.1 to 10 weight percent graphite and 0 to 10 mole percent, based on moles of boron, of ammonia or an amine selected from the group consisting of mono-, di- and/or tri- alkyl amines of 1 to 10 carbon atoms.
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