Treatment of the Reaction mixture resulting from the direct oxidation of cyclohexane to adipic acid by molecular Oxygen, in unsolvente Organic and in the presence of a Catalyst

摘要

Treatment of the Reaction mixture resulting from the direct oxidation of cyclohexane to adipic acid by molecular Oxygen.In unsolvente professional and in the presence of a Catalyst.Procedure that includes: - a decantation in two Liquid phases: an Upper Stage and a Lower Stage esencialmenteciclohexu00e1nica which essentially comprises the Solvent, the diu00e1cidos formedThe Catalyst and a part of the other products of cyclohexane and lareaccion not transformed.A distillation of the lower Phase, which allows to separate a distillate comprising at least one part of the more volatile compounds such as Organic Solvent,The unprocessed Water and cyclohexane, cyclohexanone, cyclohexanol and Cyclohexyl, losu00e9steres lactones may be present.And on the other hand the sediment formed diu00e1cidos distillation comprising the Catalyst; a catalyst distillation separation of sediment obtained above,Or by crystallization in water by electrodialysis and Ion exchange resin pasajesobre after dissolution of the sediment Water distillation,Or by washing with water or a Liquid liquid extraction; purification Treatment and / or Oxidant Reducer of adipic acid in aqueous solution; a preceding or subsequent CrystallizationWhen the same purification treatment has not been made to separate the Catalyst; a recrystallization of adipic acid in water.