公开(公告)号：US20180002250A1

公开(公告)日：2018-01-04

申请号：US15544720

申请日：2016-02-22

Applicant: versalis S.p.A.

Inventor： Stefano RAMELLO ,  Vittorio MILANESI ,  Roberto BUZZONI

IPC: C07C1/24 ,  C07C29/60 ,  B01J35/10 ,  B01J21/12 ,  B01J37/00 ,  B01J37/08 ,  B01J37/30

CPC classification number: C07C1/24 ,  B01J21/08 ,  B01J21/12 ,  B01J35/1019 ,  B01J37/0018 ,  B01J37/033 ,  B01J37/08 ,  B01J37/30 ,  C07C29/60 ,  C07C2521/12 ,  C07C11/167 ,  C07C33/025 ,  C07C33/03

Abstract: Process for the production of a diene, preferably a conjugated diene, more preferably 1,3-butadiene, comprising the dehydration of at least one alkenol in the presence of at least one catalytic material comprising at least one acid catalyst based on silica (SiO2) and alumina (AI2O3), preferably a silica-alumina (SiO2-AI2O3), said catalyst having a content of alumina (AI2O3) lower than or equal to 12% by weight, preferably ranging from 0.1% by weight to 10% by weight, with respect to the total weight of the catalyst. Preferably, said alkenol can be obtained directly from biosynthesis processes, or through the catalytic dehydration of at least one diol, preferably a butanediol, more preferably 1,3-butanediol, even more preferably bio-1,3-butanediol, deriving from biosynthesis processes. Preferably, said 1,3-butadiene is bio-1,3-butadiene.