Claims
- 1. An apparatus for producing ketoisophorone comprising: an oxidizing-reaction unit for forming ketoisophorone by oxidizing β-isophorone with oxygen in an inert solvent in the presence of an oxidizing catalyst; a separation unit for separating ketoisophorone, the solvent, a low-boiling point component having a boiling point of 100 to 180° C. as a by-product from the reaction mixture; and a recycling line for recycling the solvent separated in the separation unit to the oxidizing-reaction unit.
Priority Claims (1)
Number |
Date |
Country |
Kind |
202094/1998 |
Jul 1998 |
JP |
|
Parent Case Info
[0001] This application is a divisional of co-pending Application Ser. No. 09/482,923 filed on Jan. 14, 2000, the entire contents of which are hereby incorporated by reference and for which priority is claimed under 35 USC 120.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09482923 |
Jan 2000 |
US |
Child |
10029195 |
Dec 2001 |
US |