公开(公告)号：EP0892778B2

公开(公告)日：2015-04-01

申请号：EP97918107.0

申请日：1997-04-04

Applicant: BASF SE

Inventor： SCHNURR, Werner ,  VOIT, Guido ,  FLICK, Klemens ,  MELDER, Johann-Peter ,  FISCHER, Rolf ,  HARDER, Wolfgang

IPC: C07C209/48 ,  C07C253/30 ,  C07C211/12 ,  C07C255/24

CPC classification number: C07C209/48 ,  C07C253/30 ,  Y02P20/584

公开(公告)号：EP0931054B2

公开(公告)日：2012-07-11

申请号：EP97942889.3

申请日：1997-08-28

Applicant: BASF SE

Inventor： LUYKEN, Hermann ,  REHFINGER, Alwin ,  BASSLER, Peter ,  VOIT, Guido ,  FISCHER, Rolf ,  MERGER, Martin ,  RUST, Harald

IPC: C07C209/86

CPC classification number: C07C209/86 ,  C07C211/36 ,  C07C2601/08 ,  Y10S203/11 ,  C07C211/12

Abstract: Process for the separation of 2-aminomethylcyclopentylamine from a mixture containing hexamethyldiamine and 2-aminomethylcyclopentylamine, characterized by the fact that the separation is carried out by means of distillation at a pressure of 1-300 mbars.

Abstract translation: 一种用于从通过在从1到300毫巴的压力下蒸馏该混合物由......组成六亚甲基二胺和2- aminomethylcyclopentylamine的混合物中分离2- aminomethylcyclopentylamine过程。

公开(公告)号：EP1311467B1

公开(公告)日：2009-06-24

申请号：EP01980252.9

申请日：2001-08-20

Applicant: BASF SE

Inventor： REUTER, Peter ,  VOIT, Guido ,  HEIDEMANN, Thomas

IPC: C07C51/265 ,  C07C51/31

CPC classification number: C07C51/265 ,  C07C51/313 ,  C07C63/16

Abstract: The invention relates to a method for producing phthalic anhydride by the gas phase oxidation of xylene, naphthalene or mixtures thereof in a multitube fixed-bed reactor, which is thermostatted by a heat-transfer medium, on two different fixed-bed catalysts arranged in layers. The invention method is carried out in such a manner that the maximum temperature in the second catalyst layer arranged in the direction of flow is approximately at least 52 °C lower than the maximum temperature in the first catalyst layer. The inventive method enables the production of phthalic anhydride with high yields under conditions relevant to practice.