Global Patent Index - EP 1049669 A1

EP 1049669 A1 2000-11-08 - METHOD FOR PRODUCING LACTAMS

Title (en)

METHOD FOR PRODUCING LACTAMS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON LACTAMEN

Title (fr)

PROCEDE DE PRODUCTION DE LACTAMES

Publication

EP 1049669 A1 (DE)

Application

EP 98965200 A

Priority

  • DE 19753301 A
  • EP 9807717 W

Abstract (en)

[origin: DE19753301A1] The invention relates to a method for producing lactams by means of cyclizing hydrolysis of aminonitriles with water in the gas-phase on catalysts which contain oxides or mixed oxides of metals of groups 3, 4, 5, 13 and/or 14 of the periodic table, and optionally one additional metal oxide of groups 6, 7, 8, 9 and/or 10. In addition, the catalysts comprise a phosphate, carbonate, silicate, arsenite, arsenate, antimonite, antimonate and/or nitrate of the aforementioned metals and/or a sulfate of the aforementioned metals when metal oxides of groups 6, 7, 8, 9 or 10 are present.

IPC 1-7 (main, further and additional classification)

C07D 201/08

IPC 8 full level (invention and additional information)

B01J 23/00 (2006.01); B01J 27/18 (2006.01); B01J 27/187 (2006.01); C07D 201/08 (2006.01)

CPC (invention and additional information)

B01J 23/007 (2013.01); C07D 201/08 (2013.01)

Citation (search report)

See references of WO 9928296A1

Designated contracting state (EPC)

BE DE ES FR GB IT NL

EPO simple patent family

DE 19753301 A1 19990602; AR 017703 A1 20010912; AU 2050899 A 19990616; BR 9815074 A 20001003; CA 2311668 A1 19990610; CN 1284062 A 20010214; EP 1049669 A1 20001108; ID 24830 A 20000824; JP 2001524541 A 20011204; KR 20010032623 A 20010425; MY 120061 A 20050830; TW 416949 B 20010101; US 6353101 B1 20020305; WO 9928296 A1 19990610

INPADOC legal status


2006-11-22 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060601

2003-12-10 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20031028

2000-11-08 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000531

2000-11-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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