Invention Application
- Patent Title: REMOVAL OF AL-SALTS, HCL, NACL AND ORGANIC BY-PRODUCT FROM DIOPAT SUSPENSION BY MEANS OF CERAMIC MEMBRANES IN STRONG ACIDIC CONDITIONS AT HIGH TEMPERATURE
-
Application No.: US17261865Application Date: 2019-07-18
-
Publication No.: US20210292286A1Publication Date: 2021-09-23
- Inventor: Jacek MALISZ , Andreas MUELLER , Johannes NAGEL , Dominik LANZINGER
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Priority: EP18184692.4 20180720
- International Application: PCT/EP2019/069390 WO 20190718
- Main IPC: C07D251/24
- IPC: C07D251/24 ; B01D69/02 ; B01D71/02 ; C02F9/00
Abstract:
The present invention provides an improved process for isolating 2,4-bis-(2,4-dihydroxyphenyl)-6-(4-methoxyphenyl)-1,3,5-triazine (DIOPAT) from an aqueous alkaline mixture M comprising the DIOPAT, 2,4-dihydroxybenzophenone, and aluminum salts, wherein the process comprises the steps of precipitating the DIOPAT by acidifying the mixture M to a pH
Information query
