公开(公告)号：US20230008827A1

公开(公告)日：2023-01-12

申请号：US17783280

申请日：2020-12-03

Applicant: BASF SE

Inventor： Michael JOEDECKE ,  Joerg PASTRE

IPC: C07C67/48 ,  C07C211/10 ,  C07C209/84 ,  C07C209/86 ,  C07C29/141

Abstract: A process for producing EDA from a mixture comprising water (H2O), ethylenediamine (EDA) and N-methylethylenediamine (NMEDA) by feeding the mixture into a rectification column, wherein the rectification column is operated at the top pressure in the range of 5.0 to 7.5 bar.

公开(公告)号：US20250074865A1

公开(公告)日：2025-03-06

申请号：US18728111

申请日：2023-01-03

Applicant: BASF SE

Inventor： Michael JOEDECKE ,  Franz BORGEL ,  Christian GRUENANGER ,  Markus HILLER

IPC: C07C213/02

Abstract: A process for the manufacture of alkanolamines and/or a process for the conversion of alkanolamines wherein the process is performed in one or equipment items, wherein one or more steel parts of the one or more equipment items, which have one or more surfaces in contact with an alkanolamine, are made of duplex steel and Use of duplex stainless steel as a construction material for parts of an equipment item used in an alkanolamine and/or alkyleneamine manufacturing process or separation process, which have one or more surfaces in contact with alkyleneamines and/or alkanolamines and the use of duplex steel as a construction material for steel parts of a equipment items used in an alkanolamine manufacturing or conversion process.

公开(公告)号：US20190233378A1

公开(公告)日：2019-08-01

申请号：US16311206

申请日：2017-06-22

Applicant: BASF SE

Inventor： Sumana ROY ,  Andreas KELLER ,  Wolfgang SIEGEL ,  Michael JOEDECKE ,  Martin HAUBNER

IPC: C07D215/20 ,  B01D3/10 ,  B01D3/14 ,  B01J19/30 ,  A23L3/3526 ,  A23K20/132

CPC classification number: C07D215/20 ,  A23K20/132 ,  A23L3/3526 ,  A23V2002/00 ,  A23V2200/02 ,  B01D3/10 ,  B01D3/14 ,  B01D3/141 ,  B01D3/143 ,  B01J19/305

Abstract: The present invention relates to a process for purifying ethoxyquin by distillation, to high-purity ethoxyquin obtainable by means of distillative purification and to the use thereof, particularly as additive in foodstuffs and feedstuffs.