公开(公告)号：US20150087859A1

公开(公告)日：2015-03-26

申请号：US14034617

申请日：2013-09-24

Applicant: Eastman Chemical Company

Inventor： David Milton Lange ,  Ashfaq Shahanawaz Shaikh ,  Patrice L. Riesenberg ,  Mesfin Ejerssa Janka

IPC: C07C51/265

CPC classification number: C07C51/265 ,  C07C63/26

Abstract: 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.

Abstract translation: 公开了制备对苯二甲酸的方法，该方法包括在反应介质中将对二甲苯，包含水和含有2-4个碳原子的饱和有机酸的溶剂和含氧气体在一定温度下混合的步骤 例如约145℃至约175℃，在包含钴，锰，锆和溴的催化剂组合物存在下，其中锆以例如1的量存在于反应介质中 相对于反应介质中液体的重量为ppm至50ppm。

公开(公告)号：US09212121B2

公开(公告)日：2015-12-15

申请号：US14034617

申请日：2013-09-24

Applicant: Eastman Chemical Company

Inventor： David Milton Lange ,  Ashfaq Shahanawaz Shaikh ,  Patrice L. Riesenberg ,  Mesfin Ejerssa Janka

IPC: C07C51/265

CPC classification number: C07C51/265 ,  C07C63/26

Abstract: 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.

Abstract translation: 公开了制备对苯二甲酸的方法，该方法包括在反应介质中将对二甲苯，包含水和含有2-4个碳原子的饱和有机酸的溶剂和含氧气体在一定温度下混合的步骤 例如约145℃至约175℃，在包含钴，锰，锆和溴的催化剂组合物存在下，其中锆以例如1的量存在于反应介质中 相对于反应介质中液体的重量为ppm至50ppm。

公开(公告)号：US09382184B2

公开(公告)日：2016-07-05

申请号：US14934208

申请日：2015-11-06

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： David Milton Lange ,  Ashfaq Shahanawaz Shaikh ,  Patrice L. Riesenberg ,  Mesfin Ejerssa Janka

IPC: C07C51/265

CPC classification number: C07C51/265 ,  C07C63/26

Abstract: 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.