<p>Greater efficiency in a water-alkaline emulsion cumene oxidation process using a cascade of reactors is obtained by splitting the reactor cascade into 2 stages with the first stage utilizing NH4NaCO3 as the active carbonate in the stage containing less than 18% by weight cumene hydroperoxide and using Na2CO3 as the active carbonate in the stage containing more than 18% by weight cumene hydroperoxide. By directly injecting ammonia into a recycle stream organic acids are efficiently neutralized. A counter current water wash of the second stage also increases process efficiency by scrubbing out unwanted impurities. Control of pH in the process improves efficiency and reduces impurity levels. <IMAGE></p>
申请公布号
EP0816335(B1)
申请公布日期
2001.10.31
申请号
EP19970304341
申请日期
1997.06.20
申请人
GENERAL ELECTRIC COMPANY
发明人
ZAKOSHANSKY, VLADIMIR MICHAILO;GRIAZNOV, ANDREI K.;VASILIEVA, IRINA IVANOVNA;FULMER, JOHN WILLIAM;KIGHT, WILLIAM DALE