公开(公告)号：WO2022189652A1

公开(公告)日：2022-09-15

申请号：PCT/EP2022/056385

申请日：2022-03-11

Applicant: BASF SE

Inventor： KELLER, Andreas ,  HASSE, Hans ,  WAGNER, Rupert ,  BRUNNER, Bernhard ,  SCHULT, Matthias ,  MAURER, Stephan ,  HALLMANN, Heiko ,  DYGA, Maximilian

IPC: C07C33/025 ,  B01D1/00 ,  C07C29/80

Abstract: A process for recovering isoprenol essentially free of formaldehyde from a stream of crude isoprenol containing isoprenol, water and formaldehyde, the process comprising subjecting the stream of crude isoprenol or an isoprenol containing fraction thereof to distillation in a low-boiler separation tower operated at a pressure of 2.5 bara or higher to obtain a distillate stream containing aqueous formaldehyde and a bottoms stream containing isoprenol. The process of the invention allows for obtaining isoprenol essentially free of formaldehyde. Further provided is a plant for recovering isoprenol essentially free of formaldehyde from a stream of crude isoprenol containing isoprenol, water and formaldehyde, the plant comprising a first low-boiler separation tower, a second low-boiler separation tower, and a finishing tower.

公开(公告)号：EP4305014A1

公开(公告)日：2024-01-17

申请号：EP22711081.4

申请日：2022-03-11

Applicant: BASF SE

Inventor： KELLER, Andreas ,  HASSE, Hans ,  WAGNER, Rupert ,  BRUNNER, Bernhard ,  SCHULT, Matthias ,  MAURER, Stephan ,  HALLMANN, Heiko ,  DYGA, Maximilian

IPC: C07C33/025 ,  B01D1/00 ,  C07C29/80