Global Patent Index - EP 1015426 A1

EP 1015426 A1 2000-07-05 - 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

EP 1015426 A1 (DE)

Application

EP 98947448 A

Priority

  • DE 19738462 A
  • EP 9805356 W

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 (main, further and additional classification)

C07D 201/08; B01J 21/06

IPC 8 full level (invention and additional information)

B01J 21/06 (2006.01); B01J 37/06 (2006.01); C07D 201/08 (2006.01)

CPC (invention and additional information)

B01J 21/063 (2013.01); B01J 37/06 (2013.01); C07D 201/08 (2013.01)

Citation (search report)

See references of WO 9911615A1

Designated contracting state (EPC)

BE DE ES FR GB IT NL

EPO simple patent family

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; US 6663844 B1 20031216

INPADOC legal status


2003-01-08 [18W] WITHDRAWN

- Date of withdrawal: 20021102

2001-08-22 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010711

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000205

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE ES FR GB IT NL