EP 0758319 A1 19970219 - PROCESS FOR THE PRODUCTION OF PEROXYACIDS
Title (en)
PROCESS FOR THE PRODUCTION OF PEROXYACIDS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PERSÄUREN
Title (fr)
PROCEDE DE PRODUCTION DE PEROXYACIDES
Publication
Application
Priority
- GB 9501003 W 19950502
- GB 9408946 A 19940505
Abstract (en)
[origin: WO9530654A1] Poorly soluble peroxyacids obtained by reacting a solid carboxylic acid substrate with an Caro's acide solution can suffer from impaired purity. The purity of the product can be improved by preparing the Caro's acid solution in two stages, the first stage having an intermediate acidity (A value) of below 0.5 and thereafter in the second stage, by the introduction of further sulphuric acid, its A value is increased to the operating value that is often between 0.7 and 0.8. The second stage can be effected immediately prior to contact or in the presence of the carboxylic acid substrate.
IPC 1-7
IPC 8 full level
C07C 407/00 (2006.01); C07C 409/24 (2006.01); C07C 409/30 (2006.01); C07C 409/40 (2006.01); C07C 409/42 (2006.01)
CPC (source: EP)
C07C 407/00 (2013.01); C07C 407/003 (2013.01)
C-Set (source: EP)
Citation (search report)
See references of WO 9530654A1
Designated contracting state (EPC)
DE ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9530654 A1 19951116; EP 0758319 A1 19970219; GB 9408946 D0 19940622; JP H09512811 A 19971222
DOCDB simple family (application)
GB 9501003 W 19950502; EP 95917420 A 19950502; GB 9408946 A 19940505; JP 52876395 A 19950502