公开(公告)号：US20140121406A1

公开(公告)日：2014-05-01

申请号：US13826344

申请日：2013-03-14

Applicant: INVISTA NORTH AMERICA S.A.R.L.

Inventor： Finbar Gerald McDONNELL ,  Harry Ray Connor ,  Ronojoy Goho

IPC: C07C51/16 ,  C07C51/48 ,  C07C51/46

CPC classification number: C07C51/48 ,  B01D3/36 ,  C07C51/265 ,  C07C51/46 ,  C07C63/26 ,  C07C63/04

Abstract: The invention relates to a process for producing terephthalic acid and for purifying the mother liquor resulting from said process. Useful compounds can be extracted from the mother liquor and the purified mother liquor can be returned for use in the process. Advantageously, certain parameters of the mother liquor purification method are selected such that the purification provides an economic benefit as compared with other purification methods.

Abstract translation: 本发明涉及一种生产对苯二甲酸并用于净化由所述方法产生的母液的方法。 可以从母液中提取有用的化合物，并且可以将纯化的母液返回以用于该方法。 有利地，选择母液纯化方法的某些参数，使得与其它纯化方法相比，纯化提供了经济效益。