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：US20140341783A1

公开(公告)日：2014-11-20

申请号：US14330281

申请日：2014-07-14

Applicant: BASF SE

Inventor： Gerrit WATERS ,  Johannes BUETTNER ,  Andreas RAICHLE ,  Markus HILLER ,  Peter RENZE ,  Michael HERRICH ,  Helmut RUEGER ,  Burkhard HANTEL ,  Arndt HOFMANN ,  Ruediger FRITZ ,  Kathrin RICHTER ,  Holgar BRAUNSBERG ,  Lothar BRUNTSCH

IPC: B01J19/26

CPC classification number: B01J19/26 ,  B01J8/226 ,  B01J8/228 ,  B01J2208/00123 ,  B01J2208/00132 ,  B01J2208/00141 ,  B01J2208/0015 ,  B01J2208/00902 ,  B01J2208/00911 ,  B01J2219/00761 ,  C07C209/36 ,  C07C211/50

Abstract: The invention relates to a process for preparing aromatic amines by hydrogenation of corresponding nitroaromatics by means of hydrogen, and also an apparatus suitable for this purpose. In particular, the invention relates to a process for preparing toluenediamine (TDA) by hydrogenation of dinitrotoluene (DNT).

Abstract translation: 本发明涉及通过氢气对相应的硝基芳族化合物进行氢化制备芳族胺的方法，以及适用于该目的的装置。 特别地，本发明涉及通过氢化二硝基甲苯（DNT）制备甲苯二胺（TDA）的方法。