EP 1114018 A1 20010711 - METHOD FOR CRYSTALLISING CARBOXYLIC ACID
Title (en)
METHOD FOR CRYSTALLISING CARBOXYLIC ACID
Title (de)
VERFAHREN ZUR KRISTALLISATION EINER CARBONSÄURE
Title (fr)
PROCEDE DE CRISTALLISATION D'ACIDE CARBOXYLIQUE
Publication
Application
Priority
- FR 9902181 W 19990914
- FR 9811590 A 19980914
- FR 9908590 A 19990629
Abstract (en)
[origin: WO0015597A1] The invention concerns a method for crystallising carboxylic acid, more particularly adipic acid and a method for making crystallised carboxylic acid, more specifically a method for treating a reaction medium derived from direct oxidation of a hydrocarbon into carboxylic acid such as adipic acid, for example. More specifically, the invention concerns the crystallisation of adipic acid in an organic solvent for eliminating organic impurities contained in said acid and thereby ultimately facilitating its purification by crystallisation in water.
IPC 1-7
IPC 8 full level
C07B 61/00 (2006.01); C07C 51/215 (2006.01); C07C 51/42 (2006.01); C07C 51/43 (2006.01); C07C 55/14 (2006.01)
CPC (source: EP KR US)
C07C 51/42 (2013.01 - EP KR US); C07C 51/43 (2013.01 - EP US)
Citation (search report)
See references of WO 0015597A1
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 0015597 A1 20000323; BR 9913720 A 20011204; CA 2343012 A1 20000323; CN 1323288 A 20011121; CZ 2001917 A3 20010815; EP 1114018 A1 20010711; ID 29011 A 20010726; JP 2002524544 A 20020806; KR 20010079823 A 20010822; PL 346608 A1 20020225; RU 2221770 C2 20040120; SK 3522001 A3 20020205; TW 460452 B 20011021; UA 60380 C2 20031015; US 6559339 B1 20030506
DOCDB simple family (application)
FR 9902181 W 19990914; BR 9913720 A 19990914; CA 2343012 A 19990914; CN 99812267 A 19990914; CZ 2001917 A 19990914; EP 99942965 A 19990914; ID 20010842 A 19990914; JP 2000570138 A 19990914; KR 20017003313 A 20010314; PL 34660899 A 19990914; RU 2001110088 A 19990914; SK 3522001 A 19990914; TW 88115740 A 19990913; UA 01042573 A 19990914; US 78712701 A 20010531