公开(公告)号：US11976030B2

公开(公告)日：2024-05-07

申请号：US17277571

申请日：2019-09-13

Applicant: BASF SE

Inventor： Andreas Keller ,  Roland Minges ,  Martin Kamasz ,  Gabriele Gralla ,  Bernhard Brunner

IPC: C07C29/128 ,  B01J31/02 ,  C07C29/80 ,  C07C29/84

CPC classification number: C07C29/84 ,  B01J31/0237 ,  C07C29/1285 ,  C07C29/80 ,  B01J2231/40 ,  B01J2531/002 ,  C07C29/1285 ,  C07C33/025

Abstract: The presently claimed invention relates to a process for the recovery of 3-methyl-3-buten-1-ol from a stream obtained in the production of 3-methyl-3-buten-1-ol from 2-methylprop-1-ene and formaldehyde, by treating the stream with an amine catalyst.

公开(公告)号：US10919827B2

公开(公告)日：2021-02-16

申请号：US16636474

申请日：2018-08-10

Applicant: BASF SE

Inventor： Albert Werner ,  Miriam Bru Roig ,  Andrei-Nicolae Parvulescu ,  Roland Minges ,  Andreas Keller ,  Stephan Maurer ,  Ulrich Mueller ,  Wolfgang Siegel

IPC: C07C29/80 ,  C07C29/38 ,  C07C33/025 ,  C07C33/03 ,  B01D3/14 ,  B01J29/70 ,  B01J37/02 ,  B01J37/08

Abstract: The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1-ol, in the one or more solvents and in water compared to the feed stream F1 subject The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1-ol, in the one or more solvents and in water compared to the feed stream F1 subjected to distillation conditions, and a top stream T1 which is enriched in isobutene, further subjecting the bottoms stream B1 to distillation conditions in a second distillation unit and obtaining a bottoms stream B2 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B1 and a top stream T2 which is enriched in water compared to the bottoms stream B1, further subjecting the bottoms stream B2 to distillation conditions in a third distillation unit and obtaining a top stream T3 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B2 and a bottoms stream B3. ted to distillation conditions, and a top stream T1 which is enriched in isobutene, further subjecting the bottoms stream B1 to distillation conditions in a second distillation unit and obtaining a bottoms stream B2 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B1 and a top stream T2 which is enriched in water compared to the bottoms stream B1, further subjecting the bottoms stream B2 to distillation conditions in a third distillation unit and obtaining a top stream T3 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B2 and a bottoms stream B3.

公开(公告)号：US11618725B2

公开(公告)日：2023-04-04

申请号：US17441420

申请日：2020-03-18

Applicant: BASF SE

Inventor： Andreas Keller ,  Martin Kamasz ,  Gabriele Gralla ,  Roland Minges ,  Bernhard Brunner

IPC: C07C29/38 ,  C07C29/74 ,  C07C29/80

Abstract: The presently claimed invention relates to a process for the recovery of 3-methyl-3-buten- -ol from a stream comprising (Z)-3-methylpent-2-ene-1,5-diol, (E)-3-methylpent-2-ene-,5-diol and 3-methylenepentane-1,5-diol by treating the stream with isobutene and water.