EP 1015426 A1 20000705 - MOULDABLE MATERIALS WHICH CAN BE USED AS A CATALYST
Title (en)
MOULDABLE MATERIALS WHICH CAN BE USED AS A CATALYST
Title (de)
ALS KATALYSATOR GEEIGNETE FORMMASSEN
Title (fr)
MATIERES MOULABLES POUVANT ETRE UTILISEES COMME CATALYSEUR
Publication
Application
Priority
- DE 19738462 A 19970903
- EP 9805356 W 19980824
Abstract (en)
[origin: WO9911615A1] The present invention relates to mouldable materials which can be used as a catalyst for producing cyclic lactames by reacting aminocarboxylic acid nitriles with water in a liquid phase in a fixed bed reactor. The mouldable materials contain no reaction-soluble constituent and contain pyrogenic titanium dioxide as their main component. The mouldable materials can be obtained by moulding the pyrogenic titanium dioxide into moulded articles, and by processing the pyrogenic titanium dioxide before or after moulding with an acid in which it dissolves with difficulty, wherein said acid is taken in amount of between 0.1 and 30 wt % relative to said pyrogenic titanium dioxide.
IPC 1-7
IPC 8 full level
B01J 21/06 (2006.01); B01J 37/06 (2006.01); C07D 201/08 (2006.01)
CPC (source: EP US)
B01J 21/063 (2013.01 - EP US); B01J 37/06 (2013.01 - EP US); C07D 201/08 (2013.01 - EP US)
Citation (search report)
See references of WO 9911615A1
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9911615 A1 19990311; AU 9436498 A 19990322; BR 9811613 A 20000808; CA 2302441 A1 19990311; CN 1269787 A 20001011; EP 1015426 A1 20000705; JP 2001514076 A 20010911; KR 20010023544 A 20010326; US 6663844 B1 20031216
DOCDB simple family (application)
EP 9805356 W 19980824; AU 9436498 A 19980824; BR 9811613 A 19980824; CA 2302441 A 19980824; CN 98808837 A 19980824; EP 98947448 A 19980824; JP 2000508655 A 19980824; KR 20007002192 A 20000302; US 48648800 A 20000229