发明名称 |
PROCESS FOR THE PRODUCTION OF MALEIC ANHYDRIDE |
摘要 |
PURPOSE: A process for the production of maleic anhydride is provided. CONSTITUTION: A process for the production of maleic anhydride comprises: reacting a hydrocarbon with an oxygen-containing gas in the presence of a catalyst; recovering maleic anhydride from the reaction gas; recovering unreacted hydrocarbon from the remaining gas; and returning the hydrocarbon thus recovered to the reactor for re-use, wherein said reaction is effected under the conditions such that the hydrocarbon concentration X (vol%) and oxygen concentration Y (vol%) in all the gases to be fed into the reactor, the hydrocarbon conversion Z (%) in the reactor and the oxygen concentration W (vol%) in all the effluent gases from the reactor satisfy the following relationships: and/or wherein the concentration of maleic anhydride in the reaction gas is not less than 2 vol% and the oxygen concentration A (vol%), hydrocarbon concentration B (vol%) and carbon monoxide concentration C (vol%) in the exhaust gas after recovering unreacted hydrocarbon at the hydrocarbon recovering step satisfy the following requirements:
|
申请公布号 |
KR20000047740(A) |
申请公布日期 |
2000.07.25 |
申请号 |
KR19990053028 |
申请日期 |
1999.11.26 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
SAWAKI ITARU;SUWA HIDEO;ISHIMURA YASUNORI;IIZUKA YOSHIAKI;IZUMI MINEO |
分类号 |
C07C51/16;C07C51/215;(IPC1-7):C07C51/16 |
主分类号 |
C07C51/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|