公开(公告)号：WO2016055456A2

公开(公告)日：2016-04-14

申请号：PCT/EP2015/073021

申请日：2015-10-06

Applicant: INVISTA TECHNOLOGIES S.À R.L.

Inventor： LIMBACH, Antony Peter John ,  CHANDRA, Akhilesh ,  MATHERS, Lewis Robert ,  GUPTA, Anuj

IPC: C07C51/265

CPC classification number: C07C51/265 ,  C07C51/43 ,  C07C51/487 ,  C07C63/26

Abstract: The present invention provides a method for raising steam in a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, comprising the steps of: i) heating a crude aromatic dicarboxylic acid slurry to form a crude aromatic dicarboxylic acid solution; ii) transferring the crude aromatic dicarboxylic acid solution to a hydrogenation reactor; iii) transferring a purified aromatic dicarboxylic acid solution from the hydrogenation reactor to a series of one or more crystallisers; and iv) transferring heat from a crystalliser vent stream from the series of one or more crystallisers to a water stream in a steam raiser to generate steam. The present invention further provides an apparatus for carrying out the method, and a process for the production of an aromatic dicarboxylic acid incorporating the method.

Abstract translation: 本发明提供了一种在生产芳族二羧酸的方法中用于升高蒸汽的方法，该方法包括在有机溶剂中催化氧化烃前体，该方法包括以下步骤：i）将 粗芳族二羧酸淤浆以形成粗芳族二羧酸溶液; ii）将粗芳族二羧酸溶液转移到氢化反应器中; iii）将纯化的芳族二羧酸溶液从氢化反应器转移到一系列一种或多种结晶器中; 和iv）将来自一系列一个或多个结晶器的结晶器排放流的热量传递给蒸汽提升器中的水流以产生蒸汽。 本发明进一步提供了用于实施该方法的设备和用于生产引入该方法的芳族二羧酸的方法。