发明名称 |
CONTROLLED OXIDATION OF HYDROCARBONS TO INTERMEDIATE OXIDATION PRODUCTS |
摘要 |
This invention relates to methods of controlling the oxidation of hydrocarbons to respective intermediate oxidation products, e.g., dibasic acids, by adjusting the bulk temperature of the liquid mixture under oxidation by a cooling element, the temperature of which is maintained above a temperature at which solids deposit on the element or a second liquid phase is formed on the element, and/or by maintaining the oxygen concentration in the condenser off-gases to a level preferably lower than 90 % by volume of the flammable oxygen concentration, and/or by feeding oxygen and inert gas (preferably nitrogen) in the reaction zone, the inert gas and the oxygen having a ratio of inert gas to oxygen in the range of preferably 1:5 to 1:200. This invention is particularly applicable in the case of direct oxidation of cyclohexane to adipic acid.
|
申请公布号 |
WO9959953(A1) |
申请公布日期 |
1999.11.25 |
申请号 |
WO1999US08296 |
申请日期 |
1999.04.15 |
申请人 |
TWENTY-FIRST CENTURY RESEARCH CORPORATION;DASSEL, MARK, W.;EUSTATHIOS, VASSILIOU |
发明人 |
DASSEL, MARK, W.;EUSTATHIOS, VASSILIOU |
分类号 |
C07C51/215;C07C51/31;C07C55/14;(IPC1-7):C07C51/16 |
主分类号 |
C07C51/215 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|