公开(公告)号：WO2016055463A1

公开(公告)日：2016-04-14

申请号：PCT/EP2015/073028

申请日：2015-10-06

Applicant: INVISTA TECHNOLOGIES S.À R.L.

Inventor： URE, Alan Macpherson ,  ROBERTS, Iain James Olson

IPC: C07C51/16 ,  C07C51/44 ,  C07C51/46 ,  C07C51/265 ,  B01D3/14 ,  B01D3/36

CPC classification number: B01D3/02 ,  B01D3/346 ,  C07C51/265 ,  C07C51/44 ,  C07C51/46 ,  C07C63/26

Abstract: The present invention provides method for removing residues from a first process stream comprising an organic solvent, water, a derivative of the organic solvent and the residues, comprising the steps of: i) feeding the first process stream to a solvent stripper comprising a still pot and a stripper column; ii) removing a vapour stream comprising the organic solvent, water and the derivative of the organic solvent from the stripper column; and iii) removing a residue stream from the still pot; characterised in that: the still pot and the stripper column form an integrated unit and the stripper column comprises a plurality of sieve trays. The present invention further provides an apparatus for carrying out the method, and processes for the production of a purified aromatic dicarboxylic acid incorporating the method.

Abstract translation: 本发明提供了从包含有机溶剂，水，有机溶剂的衍生物和残余物的第一工艺流中除去残余物的方法，包括以下步骤：i）将第一工艺流供给到包含釜的溶剂汽提器 和汽提塔; ii）从汽提塔中除去包含有机溶剂，水和有机溶剂衍生物的蒸气流; 和iii）从所述釜中除去残余物流; 其特征在于：静止罐和汽提塔形成一体的单元，汽提塔包括多个筛板。 本发明还提供了一种用于实施该方法的装置，以及用于制备包含该方法的纯化芳族二羧酸的方法。

公开(公告)号：WO2016055466A1

公开(公告)日：2016-04-14

申请号：PCT/EP2015/073033

申请日：2015-10-06

Applicant: INVISTA TECHNOLOGIES S.À R.L.

Inventor： JACKSON, Christopher Howard ,  LIMBACH, Antony Peter John ,  GUPTA, Anuj ,  ROBERTS, Iain James Olson

IPC: C07C51/42 ,  C07C51/44 ,  C07C51/48 ,  C07C63/26 ,  B01D3/14

CPC classification number: B01D3/009 ,  C07C51/44 ,  C07C51/48 ,  Y02P20/127 ,  C07C63/26

Abstract: The present invention provides a method for recovering a derivative of an organic solvent from a first process stream comprising the organic solvent, water, and the derivative of the organic solvent in a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in the organic solvent in an oxidation reactor, comprising the steps of: i) feeding the first process stream to a stripping device comprising a stripping column and sump; ii) removing a purified organic solvent stream from the sump; and iii) transferring an overhead stream from the stripping column to a condenser, wherein the mass concentration of the derivative of the organic solvent in the purified organic solvent stream removed from the sump in step ii) is lower than the mass concentration of the derivative of the organic solvent in the first process stream fed to the stripping device in step i), and, optionally, wherein the mass concentration of the derivative of the organic solvent in the overhead stream transferred to the condenser in step iii)is greater than the mass concentration of the derivative of the organic solvent in the first process stream fed to the stripping device in step i). The present invention further provides apparatus for carrying out the method, and a process for the production of an aromatic dicarboxylic acid incorporating the method.

Abstract translation: 本发明提供了在生产芳族二羧酸的方法中从包含有机溶剂，水和有机溶剂的衍生物的第一工艺流中回收有机溶剂衍生物的方法，所述方法包括催化氧化 在氧化反应器中的有机溶剂中的烃前体，包括以下步骤：i）将第一工艺流进料到包括汽提塔和油槽的汽提装置中; ii）从贮槽除去纯化的有机溶剂流; 和iii）将顶部物流从汽提塔转移到冷凝器，其中在步骤ii）中从集油器中除去的纯化有机溶剂流中的有机溶剂衍生物的质量浓度低于衍生物的质量浓度 在步骤i）中进料到汽提装置的第一工艺流中的有机溶剂，以及任选地，其中在步骤iii）中转移到冷凝器中的塔顶馏出物中的有机溶剂衍生物的质量浓度大于质量 在步骤i）中在供给到汽提装置的第一工艺流中有机溶剂的衍生物的浓度。 本发明还提供了用于实施该方法的装置和一种制备包含该方法的芳族二羧酸的方法。