Invention Grant
- Patent Title: Process for the separation of acrylic acid
- Patent Title (中): 丙烯酸分离方法
-
Application No.: US147628Application Date: 1999-02-04
-
Publication No.: US6166248APublication Date: 2000-12-26
- Inventor: Bernd Heida , Fritz Thiessen , Ulrich Hammon , Albrecht Dams
- Applicant: Bernd Heida , Fritz Thiessen , Ulrich Hammon , Albrecht Dams
- Applicant Address: DEX Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DEX Ludwigshafen
- Priority: DEX19631645 19960805
- Main IPC: C07C51/25
- IPC: C07C51/25 ; C07C51/48 ; C07C57/05 ; C07C57/07 ; C07C51/16 ; C07C241/00
Abstract:
A process for isolating acrylic acid forward during catalytic gas phase oxidation of propene, which entails separating acrylic acid from the gas phase oxidation reaction using an absorbent containing biphenyl, diphenyl ether or dimethyl phthalate; and extracting acrylic acid from acid water of the gas phase reaction with a solvent containing biphenyl, diphenyl ether or dimethyl phthalate.
Public/Granted literature
- US5518216A Direction and an angle adjustment apparatus for a video display device Public/Granted day:1996-05-21
Information query
