Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1998-02-09
1999-06-01
Geist, Gary
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568573, C07C40910
Patent
active
059089628
ABSTRACT:
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 NH.sub.4 NaCO.sub.3 as the active carbonate in the stage containing less than 18% by weight cumene hydroperoxide and using Na.sub.2 CO.sub.3 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.
REFERENCES:
patent: 5767322 (1998-06-01), Zakoshansky
Fulmer John W.
Griaznov Andrei Konstantinovich
Kight William D.
Vasilieva Irina I.
Zakoshansky Vladimir Mikhailovich
Geist Gary
General Electric Company and Illa International
Vollano Jean F
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