发明名称 |
PROCESSES FOR PRODUCING TEREPHTHALIC ACID |
摘要 |
Processes for producing terephthalic acid are disclosed, the processes including a step of combining in a reaction medium para-xylene, a solvent comprising water and a saturated organic acid having from 2-4 carbon atoms, and an oxygen-containing gas, at a temperature for example from about 145° C. to about 175° C., in the presence of a catalyst composition comprising cobalt, manganese, zirconium, and bromine, wherein the zirconium is present in the reaction medium in an amount, for example, from 1 ppm to 50 ppm with respect to the weight of the liquid in the reaction medium. |
申请公布号 |
US2015087859(A1) |
申请公布日期 |
2015.03.26 |
申请号 |
US201314034617 |
申请日期 |
2013.09.24 |
申请人 |
Eastman Chemical Company |
发明人 |
Lange David Milton;Shaikh Ashfaq Shahanawaz;Riesenberg Patrice L.;Janka Mesfin Ejerssa |
分类号 |
C07C51/265 |
主分类号 |
C07C51/265 |
代理机构 |
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代理人 |
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主权项 |
1. A process for producing terephthalic acid, the process comprising combining in a reaction medium para-xylene, a solvent comprising water and a saturated organic acid having from 2-4 carbon atoms, and an oxygen-containing gas, at a temperature from about 145° C. to about 175° C., in the presence of a catalyst composition comprising cobalt, manganese, zirconium, and bromine, wherein the zirconium is present in the reaction medium in an amount from about 1 ppm to 50 ppm, with respect to the weight of the liquid in the reaction medium. |
地址 |
Kingsport TN US |