EP 1080064 A1 20010307 - CONTROLLED OXIDATION OF HYDROCARBONS TO INTERMEDIATE OXIDATION PRODUCTS
Title (en)
CONTROLLED OXIDATION OF HYDROCARBONS TO INTERMEDIATE OXIDATION PRODUCTS
Title (de)
KONTROLLIERTE OXIDATION VON KOHLENWASSERSTOFFEN ZU OXIDATIONSZWISCHENPRODUKTEN
Title (fr)
OXYDATION REGULEE D'HYDROCARBURES EN PRODUITS D'OXYDATION INTERMEDIAIRES
Publication
Application
Priority
- US 9908296 W 19990415
- US 8615998 P 19980520
- US 8611898 P 19980520
- US 8611998 P 19980520
- US 10191898 P 19980924
Abstract (en)
[origin: WO9959953A1] This invention relates to methods of controlling the oxidation of hydrocarbons to respective intermediate oxidation products, e.g., dibasic acids, by adjusting the bulk temperature of the liquid mixture under oxidation by a cooling element, the temperature of which is maintained above a temperature at which solids deposit on the element or a second liquid phase is formed on the element, and/or by maintaining the oxygen concentration in the condenser off-gases to a level preferably lower than 90 % by volume of the flammable oxygen concentration, and/or by feeding oxygen and inert gas (preferably nitrogen) in the reaction zone, the inert gas and the oxygen having a ratio of inert gas to oxygen in the range of preferably 1:5 to 1:200. This invention is particularly applicable in the case of direct oxidation of cyclohexane to adipic acid.
IPC 1-7
IPC 8 full level
C07C 51/215 (2006.01); C07C 51/31 (2006.01); C07C 55/14 (2006.01)
CPC (source: EP KR)
C07C 5/00 (2013.01 - KR); C07C 51/313 (2013.01 - EP)
Citation (search report)
See references of WO 9959953A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9959953 A1 19991125; AU 3646399 A 19991206; BR 9910513 A 20010904; CA 2331663 A1 19991125; CN 1307555 A 20010808; EP 1080064 A1 20010307; JP 2002515473 A 20020528; KR 20010052376 A 20010625; MX PA00011514 A 20020424
DOCDB simple family (application)
US 9908296 W 19990415; AU 3646399 A 19990415; BR 9910513 A 19990415; CA 2331663 A 19990415; CN 99807609 A 19990415; EP 99918587 A 19990415; JP 2000549572 A 19990415; KR 20007013045 A 20001120; MX PA00011514 A 19990415