Global Patent Index - EP 1060124 A1

EP 1060124 A1 2000-12-20 - METHOD FOR PRODUCING HYDROXYLAMMONIUM SALTS

Title (en)

METHOD FOR PRODUCING HYDROXYLAMMONIUM SALTS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON HYDROXYLAMMONIUMSALZEN

Title (fr)

PROCEDE DE PRODUCTION DE SELS D'HYDROXYLAMMONIUM

Publication

EP 1060124 A1 (DE)

Application

EP 99907582 A

Priority

  • DE 19808939 A
  • EP 9901338 W

Abstract (en)

[origin: DE19808939A1] The invention relates to a method for producing hydroxylammonium salts by means of catalytic reduction of nitrogen monoxide with hydrogen in the presence of an acid and a hydrogenating catalyst, whereby the nitrogen monoxide is purified before the catalytic reduction by at least one treatment with porous oxides based on silicon and/or aluminum or with activated carbon.

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

C01B 21/14; C01B 21/24

IPC 8 full level (invention and additional information)

C01B 21/14 (2006.01); C01B 21/24 (2006.01); C01B 21/26 (2006.01)

CPC (invention and additional information)

C01B 21/26 (2013.01); C01B 21/1418 (2013.01)

Citation (search report)

See references of WO 9944938A1

Designated contracting state (EPC)

BE DE ES IT NL

EPO simple patent family

DE 19808939 A1 19990909; BG 104723 A 20010531; BR 9908398 A 20001031; CN 1291962 A 20010418; CO 5060532 A1 20010730; EP 1060124 A1 20001220; ID 26109 A 20001123; JP 2002505246 A 20020219; PL 342760 A1 20010702; SK 12282000 A3 20010409; WO 9944938 A1 19990910

INPADOC legal status


2004-05-06 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031001

2001-11-07 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010920

2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000901

2000-12-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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

2000-12-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: RO PAYMENT 20000901