METHOD FOR THE EPOXIDATION OF AN OLEFIN WITH HYDROGEN PEROXIDE

• Main Authors: PASCALY MATTHIAS, IMM SEBASTIAN, ANDRE JOAO, STOCK JUERGEN
• Format: Patent
• Language: English; Korean
• Published: 23.10.2017
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

올레핀의 에폭시화 방법에서, 올레핀은 망간 착물을 포함하는 수용성 에폭시화 촉매의 존재 하에 혼합 반응기에서 과산화수소와 연속적으로 반응하고, 반응은 유기 액상 및 수성 액상을 포함하는 반응 혼합물에서 액상들을 혼합하면서 수행되고, 반응 혼합물은 혼합 반응기로부터 연속적으로 인출되어 분리된 수성상 및 분리된 유기상으로 분리되고, 분리된 수성상의 일부는 혼합 반응기 내로 연속적으로 재순환되고, 인출, 상 분리 및 수성상의 재순환 시에 수성상의 결합된 유지 시간은 15 분 미만으로 유지된다. In the method for the epoxidation of an olefin, the olefin is continuously reacted with hydrogen peroxide in a mixed reactor in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, the reaction is carried out in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase with mixing of the liquid phases, reaction mixture is continuously withdrawn from the mixed reactor and separated into a separated aqueous phase and a separated organic phase, and part of the separated aqueous phase is continuously recycled into the mixed reactor, with the combined hold-up time of aqueous phase in withdrawing, separating phases and recycling aqueous phase being kept at less than 15 minutes.