公开(公告)号：US11498887B2

公开(公告)日：2022-11-15

申请号：US16339186

申请日：2017-10-18

Applicant: Versalis S.P.A.

Inventor： Daniele Delledonne ,  Alberto Cesana ,  Marco Mattachini ,  Monica Vittoria Pastori

IPC: C01C1/24 ,  C07C11/167 ,  C07C1/24 ,  B01J37/03 ,  B01J35/00 ,  B01J23/10 ,  B01J29/08 ,  B01J29/70 ,  B01J37/00 ,  C07C29/60 ,  B01J35/10 ,  B01J37/08 ,  C07C33/03 ,  C12P7/18

Abstract: The present invention relates to a process for producing a diene, preferably a conjugated diene, more preferably 1,3-butadiene, comprising the dehydration of at least one alkenol having a number of carbon atoms greater than or equal to 4, in the presence of a catalytic material comprising at least one crystalline metalosilicate in acid form, preferably a macroporous zeolite, more preferably a zeolite with a FAU, BEA or MTW structure. Preferably, said alkenol having a number of carbon atoms greater than or equal to 4 may be obbtained directly through biosynthetic processes, or through catalytic dehydration processes of at least one diol. When said alkenol is a butenol, said diol is preferably a butanediol, more preferably 1,3-butanediol, even more preferably bio-1,3-butanediol, i.e. 1,3-butanediol deriving from biosynthetic processes. When said alkenol is 1,3-butanediol, or bio-1,3-butanediol, the diene obtained with the process according to the present invention is, respectively, 1,3-butadiene, or bio-1,3-butadiene.

公开(公告)号：US20190241481A1

公开(公告)日：2019-08-08

申请号：US16339186

申请日：2017-10-18

Applicant: Versalis S.P.A.

Inventor： Daniele Delledonne ,  Alberto Cesana ,  Marco Mattachini ,  Monica Vittoria Pastori

IPC: C07C1/24 ,  B01J29/08 ,  B01J29/70 ,  B01J35/00 ,  B01J37/00 ,  B01J23/10 ,  C07C29/60

CPC classification number: C07C1/24 ,  B01J23/10 ,  B01J29/08 ,  B01J29/084 ,  B01J29/7007 ,  B01J29/7034 ,  B01J35/0006 ,  B01J35/1057 ,  B01J35/1066 ,  B01J35/109 ,  B01J37/0018 ,  B01J37/031 ,  B01J37/08 ,  B01J2229/37 ,  B01J2229/42 ,  C07C11/167 ,  C07C29/60 ,  C07C33/03 ,  C07C2529/08 ,  C07C2529/70 ,  C12P7/18 ,  C07C33/025

Abstract: The present invention relates to a process for producing a diene, preferably a conjugated diene, more preferably 1,3-butadiene, comprising the dehydration of at least one alkenol having a number of carbon atoms greater than or equal to 4, in the presence of a catalytic material comprising at least one crystalline metalosilicate in acid form, preferably a macroporous zeolite, more preferably a zeolite with a FAU, BEA or MTW structure. Preferably, said alkenol having a number of carbon atoms greater than or equal to 4 may be obbtained directly through biosynthetic processes, or through catalytic dehydration processes of at least one diol. When said alkenol is a butenol, said diol is preferably a butanediol, more preferably 1,3-butanediol, even more preferably bio-1,3-butanediol, i.e. 1,3-butanediol deriving from biosynthetic processes. When said alkenol is 1,3-butanediol, or bio-1,3-butanediol, the diene obtained with the process according to the present invention is, respectively, 1,3-butadiene, or bio-1,3-butadiene.