公开(公告)号：WO2016023958A1

公开(公告)日：2016-02-18

申请号：PCT/EP2015/068593

申请日：2015-08-12

Applicant: INVISTA TECHNOLOGIES S.À R.L.

Inventor： QUIGLEY, Noel ,  JACKSON, Christopher Howard

IPC: C07C51/265 ,  C07C51/47 ,  C07C51/48 ,  C07C63/06 ,  C07C63/26 ,  B01J19/00

CPC classification number: C07C51/48 ,  B01J2219/00006 ,  C07C51/265 ,  C07C51/47 ,  C07C63/06 ,  C07C63/26

Abstract: The present invention provides processes and apparatuses for recovering an aromatic monocarboxylic acid from a residue stream in which a first solid extraction is followed by a second extraction.

Abstract translation: 本发明提供从残留物流中回收芳族一元羧酸的方法和装置，其中第一次固体萃取之后是第二次萃取。

公开(公告)号：WO2016055643A1

公开(公告)日：2016-04-14

申请号：PCT/EP2015/073466

申请日：2015-10-09

Applicant: INVISTA TECHNOLOGIES S.À R.L.

Inventor： JACKSON, Christopher Howard ,  LIMBACH, Antony Peter John ,  WARD, Simon Andrew

IPC: C07C51/265 ,  C07C63/26 ,  B01J19/00

CPC classification number: C07C51/265 ,  B01J10/00 ,  B01J19/0006 ,  B01J19/002 ,  B01J19/24 ,  B01J19/2465 ,  B01J2219/00103 ,  B01J2219/00186 ,  B01J2219/00202 ,  B01J2219/00213 ,  B01J2219/00225 ,  B01J2219/00231 ,  C07C63/26

Abstract: The present invention provides a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, wherein said process comprises: (a) separating off-gas generated by said oxidation reaction into an organic solvent-rich liquid stream and a water-rich vapour stream, wherein the water-rich vapour stream comprises organic compounds and non-condensable gases, and wherein said separating is performed in a pressurised distillation stage comprising a first pressurised distillation column and a second pressurised distillation column, and (b) condensing said water-rich vapour stream exiting the pressurised distillation stage into a condensate stream and an overhead gas stream in a condensing stage, characterised in that a first water-rich vapour stream is withdrawn from said first pressurised distillation column and passed to said second pressurised distillation column and a first organic solvent-rich liquid stream is withdrawn from the first pressurised distillation column and returned to the oxidation reaction, wherein said process further comprises the step of monitoring the oxidation reaction by analysing the composition of said first water-rich vapour stream.

Abstract translation: 本发明提供一种生产芳族二羧酸的方法，其包括在有机溶剂中催化氧化烃前体，其中所述方法包括：（a）将由所述氧化反应产生的废气分离成富有机溶剂 液体流和富水蒸气流，其中所述富水蒸汽流包含有机化合物和不可冷凝气体，并且其中所述分离在包括第一加压蒸馏塔和第二加压蒸馏塔的加压蒸馏阶段中进行， 和（b）将在所述加压蒸馏阶段出口的所述富水蒸气物流在冷凝阶段中冷凝成冷凝物流和塔顶气流，其特征在于，将第一富水蒸气流从所述第一加压蒸馏塔排出并通过 到所述第二加压蒸馏塔和富含第一有机溶剂的液体流i s从第一加压蒸馏塔取出并返回到氧化反应，其中所述方法还包括通过分析所述第一富水蒸气流的组成来监测氧化反应的步骤。

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。