公开(公告)号：EP1658321A1

公开(公告)日：2006-05-24

申请号：EP04763248.4

申请日：2004-07-15

申请人： BASF Aktiengesellschaft

发明人： DEMETER, Jürgen ,  SÖTJE, Oliver ,  BASSLER, Hans-Jürgen ,  DEININGER, Jürgen ,  KLAPPERT, Karl-Heinrich ,  WINTERLING, Helmut

IPC分类号： C08G69/04 ,  B01J19/00

CPC分类号： C08G69/28 ,  B01J19/02 ,  B01J2219/0236 ,  B01J2219/0286 ,  B01J2219/029 ,  C08G69/04

摘要： Disclosed is a method for producing polyamides and the oligomers or mixtures thereof, optionally with additional reaction products, by reacting a reaction mixture containing monomers that comprise CN groups or -CONH2 groups, other optional polyamide-forming monomers and/or oligomers, and water in a device. Said method is characterized in that the surfaces of the device, which enter in contact with the reaction mixture, are entirely or partly made of a material that is selected among a group comprising: a) an austenitic steel containing 15 to 25 percent by weight of chromium, 3 to 35 percent by weight of nickel, 0 to 10 percent by weight of molybdenum, and other optional alloy components, the balance being made up of iron and the percentages by weight being in relation to a); b) a duplex steel containing 20 to 30 percent by weight of chromium, 3 to 10 percent by weight of nickel, 0 to 5 percent by weight of molybdenum, and other optional alloy components, the balance being made up of iron and the percentages by weight being in relation to b); and c) a basic nickel alloy containing 12 to 25 percent by weight of chromium, 12 to 20 percent by weight of molybdenum, and other optional alloy components, the balance being made up of nickel and the percentages being in relation to c). Also disclosed are devices that are used in or intended for such a method.

摘要翻译： 本发明公开了通过使含有CN基团或-CONH 2基团的单体，其它任选的形成聚酰胺的单体和/或低聚物以及水的反应混合物与含有CN基团的单体和/或低聚物反应来制备聚酰胺及其低聚物或其混合物的方法 一个装置。 所述方法的特征在于与所述反应混合物接触的所述装置的表面全部或部分地由选自包括以下的组中的材料制成：a）含有15至25重量％的奥氏体钢 铬，3至35重量％的镍，0至10重量％的钼和其它任选的合金组分，余量由铁构成，并且重量百分比与a）相关; b）含有20至30重量％的铬，3至10重量％的镍，0至5重量％的钼和其它任选的合金组分的双相钢，余量由铁和百分比组成 重量与b）有关; 和c）含有12-25重量％铬，12-20重量％钼和其它任选合金组分的碱性镍合金，余量由镍构成，并且其百分数与c）相关。 还公开了用于或用于这种方法的设备。