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：US12227467B2

公开(公告)日：2025-02-18

申请号：US17277968

申请日：2019-09-19

Applicant: VERSALIS S.P.A.

Inventor： Mario Baldassarre ,  Alberto Cesana ,  Fabrizio Bordes

IPC: C07C29/76 ,  B01D15/36 ,  B01D21/26 ,  B01D61/02 ,  B01D61/14 ,  B01D61/58 ,  B01D69/02 ,  B01J23/10 ,  C07C1/24 ,  C07C29/80 ,  C07C31/20 ,  C08F36/06 ,  C12P7/18

Abstract: A process for bio-1,3-butanediol purification from a fermentation broth includes the steps of: (a) subjecting the fermentation broth to separation, (b) subjecting the product obtained in step (a) to treatment with ion-exchange resins, (c) subjecting the product obtained in step (b) to a first evaporation, (d) subjecting the product obtained in step (c) to a second evaporation; and (e) subjecting the product obtained in step (d) to a third evaporation, obtaining purified bio-1,3-butanediol. The purified bio-1,3-butanediol can be used to produce bio-1,3-butadiene. Bio-1,3-butadiene can be used as a monomer or as an intermediate to produce elastomers and (co)polymers.

公开(公告)号：US20210380512A1

公开(公告)日：2021-12-09

申请号：US17277968

申请日：2019-09-19

Applicant: VERSALIS S.P.A.

Inventor： Mario Baldassarre ,  Alberto Cesana ,  Fabrizio Bordes

IPC: C07C29/76 ,  C12P7/18 ,  C07C29/80 ,  C07C1/24 ,  C08F36/06 ,  B01J23/10 ,  B01D61/14 ,  B01D61/02 ,  B01D21/26 ,  B01D69/02 ,  B01D71/02 ,  B01D61/58 ,  B01D15/36

Abstract: A process for bio-1,3-butanediol purification from a fermentation broth includes the steps of: (a) subjecting the fermentation broth to separation, (b) subjecting the product obtained in step (a) to treatment with ion-exchange resins, (c) subjecting the product obtained in step (b) to a first evaporation, (d) subjecting the product obtained in step (c) to a second evaporation; and (e) subjecting the product obtained in step (d) to a third evaporation, obtaining purified bio-1,3-butanediol. The purified bio-1,3-butanediol can be used to produce bio-1,3-butadiene. Bio-1,3-butadiene can be used as a monomer or as an intermediate to produce elastomers and (co)polymers.

公开(公告)号：US09862664B2

公开(公告)日：2018-01-09

申请号：US15303640

申请日：2015-05-15

Applicant: Versalis S.P.A.

Inventor： Alberto Cesana ,  Stefano Ramello ,  Guido Spano′

IPC: C07C29/00 ,  C07C1/00 ,  B01J21/00 ,  C07C29/60 ,  B01J23/10 ,  C07C1/24 ,  B01J37/03 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  B01J21/12

CPC classification number: C07C29/60 ,  B01J21/12 ,  B01J23/10 ,  B01J35/002 ,  B01J35/1009 ,  B01J35/1014 ,  B01J37/0036 ,  B01J37/031 ,  C07C1/24 ,  C07C2521/12 ,  C07C33/03 ,  C07C33/025 ,  C07C11/167

Abstract: Process for the production of alkenols comprising the dehydration of at least one diol in the presence of at least one catalyst based on cerium oxide, wherein said catalyst based on cerium oxide is obtained by precipitation, in the presence of at least one base, of at least one compound containing cerium. Preferably, said diol may be a butanediol, more preferably 1,3-butanediol, still more preferably bio-1,3-butanediol derived from biosynthetic processes. Said alkenols may advantageously be used for the production of 1,3-butadiene, in particular of 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.