EP 0998440 A1 20000510 - IMPROVED VAPOR PHASE OXIDATION OF PROPYLENE TO ACROLEIN
Title (en)
IMPROVED VAPOR PHASE OXIDATION OF PROPYLENE TO ACROLEIN
Title (de)
DAMPFPHASENOXIFDATION VON PROPYLEN ZU ACROLEIN
Title (fr)
OXYDATION PERFECTIONNEE EN PHASE VAPEUR DE PROPYLENE EN ACROLEINE
Publication
Application
Priority
- US 9814511 W 19980714
- US 5569397 P 19970715
Abstract (en)
[origin: WO9903809A1] An improved method for the selective vapor phase oxidation of propylene to acrolein in a recirculating solids reactor system using a bismuth molybdate multimetal oxide involving specific reactant concentrations (preferably 5 mol % to 30 md % propylene, 0 to 20 mol % oxygen, and the remainder inert gas), particle size (1 to 300 micrometers), temperature (250 to 450 DEG C) and gas (1 to 15 seconds) and solids (2 to 60 seconds) residence times. Such a process leads to improved selectivity and propylene conversion.
IPC 1-7
C07C 45/28; C07C 47/22; B01J 8/38; B01J 23/31; B01J 23/92; C07C 201/14
IPC 8 full level
B01J 8/00 (2006.01); B01J 8/18 (2006.01); B01J 8/24 (2006.01); B01J 8/26 (2006.01); B01J 8/38 (2006.01); B01J 23/31 (2006.01); B01J 23/92 (2006.01); B01J 23/94 (2006.01); C07B 61/00 (2006.01); C07C 45/28 (2006.01); C07C 45/35 (2006.01); C07C 47/22 (2006.01)
CPC (source: EP KR)
B01J 8/0055 (2013.01 - EP); B01J 8/1863 (2013.01 - EP); B01J 8/26 (2013.01 - EP); B01J 23/94 (2013.01 - EP); C07C 45/28 (2013.01 - EP KR); Y02P 20/584 (2015.11 - EP)
Citation (search report)
See references of WO 9903809A1
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9903809 A1 19990128; AR 013221 A1 20001213; AU 8400798 A 19990210; BR 9810715 A 20000808; CA 2291769 A1 19990128; CN 1263519 A 20000816; EP 0998440 A1 20000510; ID 24324 A 20000713; JP 2000513384 A 20001010; KR 20010021832 A 20010315; TW 477786 B 20020301; ZA 986280 B 20000117
DOCDB simple family (application)
US 9814511 W 19980714; AR P980103439 A 19980715; AU 8400798 A 19980714; BR 9810715 A 19980714; CA 2291769 A 19980714; CN 98807181 A 19980714; EP 98934499 A 19980714; ID 20000066 A 19980714; JP 50759799 A 19980714; KR 20007000396 A 20000114; TW 87111503 A 19980908; ZA 986280 A 19980715