公开(公告)号：US08809556B2

公开(公告)日：2014-08-19

申请号：US13553976

申请日：2012-07-20

Applicant: Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Paula Moody ,  Ashfaq Shaikh ,  Lee Reynolds Partin ,  Bradford Russell Bowers ,  Michael Charles Morrow

Inventor： Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Paula Moody ,  Ashfaq Shaikh ,  Lee Reynolds Partin ,  Bradford Russell Bowers ,  Michael Charles Morrow

IPC: C07D307/68

CPC classification number: C07D307/68

Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry in a liquid displacement zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a secondary oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to form a crystallized slurry stream. The crystallized slurry stream is cooled in a cooling zone and the resulting cooled crystallized slurry stream is routed to a solid-liquid separation zone to generate a purified wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising purified FDCA (pFDCA).

Abstract translation: 公开了一种生产包含呋喃-2,5-二羧酸（FDCA）的干燥纯化羧酸产物的方法。 该方法包括氧化至少一种可氧化化合物以产生包含FDCA的粗羧酸浆料，从液体置换区中的粗羧酸浆料中除去杂质以形成低杂质浆料流。 在二次氧化区进一步处理低杂质浆料流，以产生二次氧化淤浆料流，将其送入结晶区以形成结晶浆料流。 将结晶的浆料流在冷却区中冷却，并将所得的冷却的结晶浆料流送至固液分离区，以产生包含FDCA的纯化湿饼料流，其在干燥区中干燥以产生干燥的羧酸产物流 包括纯化的FDCA（pFDCA）。

公开(公告)号：US20140024843A1

公开(公告)日：2014-01-23

申请号：US13553976

申请日：2012-07-20

Applicant: Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Paula Moody ,  Ashfaq Shaikh ,  Lee Reynolds Partin ,  Bradford Russell Bowers ,  Michael Charles Morrow

Inventor： Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Paula Moody ,  Ashfaq Shaikh ,  Lee Reynolds Partin ,  Bradford Russell Bowers ,  Michael Charles Morrow

IPC: C07D307/68

CPC classification number: C07D307/68

Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry in a liquid displacement zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a secondary oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to form a crystallized slurry stream. The crystallized slurry stream is cooled in a cooling zone and the resulting cooled crystallized slurry stream is routed to a solid-liquid separation zone to generate a purified wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising purified FDCA (pFDCA).

Abstract translation: 公开了一种生产包含呋喃-2,5-二羧酸（FDCA）的干燥纯化羧酸产物的方法。 该方法包括氧化至少一种可氧化化合物以产生包含FDCA的粗羧酸浆料，从液体置换区中的粗羧酸浆料中除去杂质以形成低杂质浆料流。 在二次氧化区进一步处理低杂质浆料流，以产生二次氧化淤浆料流，将其送入结晶区以形成结晶浆料流。 将结晶的浆料流在冷却区中冷却，并将所得的冷却的结晶浆料流送至固液分离区，以产生包含FDCA的纯化湿饼料流，其在干燥区中干燥以产生干燥的羧酸产物流 包括纯化的FDCA（pFDCA）。

公开(公告)号：US20130345448A1

公开(公告)日：2013-12-26

申请号：US13530765

申请日：2012-06-22

Applicant: Ashfaq Shaikh ,  Kenny Randolph Parker ,  Lee Reynolds Partin ,  Mesfin Ejerssa Janka

Inventor： Ashfaq Shaikh ,  Kenny Randolph Parker ,  Lee Reynolds Partin ,  Mesfin Ejerssa Janka

IPC: C07D307/68

CPC classification number: C07D307/68 ,  C07D307/46

Abstract: A process to produce a purified dimethyl-furan-2,5-dicarboxylate (DMFD) by feeding furan dicarboxylic acid and methanol to an esterification zone to generate a crude diester composition, and purifying the crude diester composition with a physical separation process followed by crystallization, solid liquid separation, and optionally drying to produce a purified DMFD composition. A portion of the stream generated by solid liquid separation can be dissolved and subjected to crystallization and solid liquid separation repeatedly. The process is useful to produce a purified DMFD composition having a low b*, at least 98 wt. % DAFD solids, and a low concentration of 5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) and methyl 5-formylfuran-2-carboxylate (MFFC).

公开(公告)号：US20130345447A1

公开(公告)日：2013-12-26

申请号：US13530738

申请日：2012-06-22

Applicant: Ashfaq Shaikh ,  Lee Reynolds Partin ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker

Inventor： Ashfaq Shaikh ,  Lee Reynolds Partin ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker

IPC: C07D307/68

CPC classification number: C07D307/68

Abstract: Disclosed is a process to produce a purified vapor comprising dialkyl-furan-2,5-dicarboxylate (DAFD). Furan-2,5-dicarboxylic acid (FDCA) and an alcohol in an esterification zone to generate a crude diester stream containing dialkyl furan dicarboxylate (DAFD), unreacted alcohol, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and alkyl furan-2-carboxylate (AFC). The crude diester stream is fed to a flash evaporation zone to produce a vapor alcohol composition and a first liquid DAFD rich composition. At least a portion of the remaining alcohol can be separated from the first liquid DAFD rich composition to produce a second alcohol vapor and a second liquid DAFD rich composition, followed by separating AFC from the second liquid DAFD rich composition to product an AFC vapor and a partially purified DAFD rich composition, followed by separating a portion of the DAFD from the partially purified DAFD rich composition to produce a purified DAFD vapor.

Abstract translation: 公开了一种生产包含呋喃-2,5-二甲酸二烷基酯（DAFD）的纯化蒸气的方法。 呋喃-2,5-二羧酸（FDCA）和醇在酯化区中产生含有呋喃二羧酸二烷基酯（DAFD），未反应的醇，5-（烷氧基羰基）呋喃-2-羧酸（ACFC）的粗二酯流， 和呋喃-2-羧酸烷基酯（AFC）。 将粗二酯流进料到闪蒸区域以产生蒸汽醇组合物和富含第一液体DAFD的组合物。 剩余的醇的至少一部分可以与富含第一液体DAFD的组合物分离，以产生第二醇蒸气和富含第二液态DAFD的组合物，然后将AFC与第二种富含液体DAFD的组合物分离，以产生AFC蒸气和 部分纯化的富含DAFD的组合物，然后从部分纯化的富含DAFD的组合物中分离一部分DAFD以产生纯化的DAFD蒸气。

公开(公告)号：US20110190536A1

公开(公告)日：2011-08-04

申请号：US12957730

申请日：2010-12-01

Applicant: Ashfaq Shaikh ,  Alan George Wonders ,  David Lange

Inventor： Ashfaq Shaikh ,  Alan George Wonders ,  David Lange

IPC: C07C51/265 ,  B01J8/00

CPC classification number: B01J8/228 ,  B01J8/22 ,  B01J10/00 ,  B01J2208/00274 ,  B01J2208/003 ,  C07C51/265 ,  C07C63/26

Abstract: Disclosed are process and apparatus for vertical splitting of the oxygen supply to a post-oxidation reactor. Further disclosed are process and apparatus for supplying reaction medium to a post-oxidation reactor at a mid-level inlet. Such apparatus and process can assist in reducing oxygen pinch throughout the post-oxidation reactor.

Abstract translation: 公开了用于将氧气供应垂直分离到后氧化反应器的方法和装置。 还公开了用于在中级入口向后氧化反应器供应反应介质的方法和装置。 这种设备和方法可以帮助减少整个后氧化反应器中的氧气。

公开(公告)号：US07411415B2

公开(公告)日：2008-08-12

申请号：US10787923

申请日：2004-02-25

Applicant: Ashfaq Shaikh ,  Ting Ku ,  Huabo Chen

Inventor： Ashfaq Shaikh ,  Ting Ku ,  Huabo Chen

IPC: H03K17/16

CPC classification number: H04L25/0278 ,  H04L25/028

Abstract: Embodiments of methods, apparatuses, systems and/or devices associated with a bus termination scheme are disclosed.

Abstract translation: 公开了与总线终端方案相关联的方法，设备，系统和/或设备的实施例。

公开(公告)号：US08968686B2

公开(公告)日：2015-03-03

申请号：US12957733

申请日：2010-12-01

Applicant: Ashfaq Shaikh ,  Alan George Wonders

Inventor： Ashfaq Shaikh ,  Alan George Wonders

IPC: B01J8/18 ,  B01J8/22 ,  B01J10/00 ,  B01J8/00 ,  B01J19/00 ,  B01J19/24 ,  B01J35/02 ,  C07C51/00 ,  C07C51/16 ,  C07C51/21 ,  C07C51/255 ,  C07C51/265

CPC classification number: B01J8/1872 ,  B01J8/1827 ,  B01J8/22 ,  B01J10/002 ,  B01J2208/00911 ,  B01J2208/00991 ,  B01J2219/00006 ,  B01J2219/0004 ,  C07C51/265 ,  C07C63/26

Abstract: Disclosed are process and apparatus for vertical splitting of the oxygen supply to a post-oxidation reactor. Further disclosed are process and apparatus for supplying reaction medium to a post-oxidation reactor at a mid-level inlet. Such apparatus and process can assist in reducing oxygen pinch throughout the post-oxidation reactor.

公开(公告)号：US08859788B2

公开(公告)日：2014-10-14

申请号：US13530789

申请日：2012-06-22

Applicant: Lee Reynolds Partin ,  Ashfaq Shaikh ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker

Inventor： Lee Reynolds Partin ,  Ashfaq Shaikh ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker

IPC: C07D307/68

CPC classification number: C07D307/68

Abstract: A process for the manufacture of dialkyl furan-2,5-dicarboxylate (DAFD) vapor composition by feeding furan-2,5-dicarboxylic acid (“FDCA”) to an esterification reactor and in the presence of an alcohol compound such as methanol, conducting an esterification reaction to form an esterification vapor containing DAFD, unreacted alcohol compound, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and water, and continuously passing the esterification vapor through an ACFC condensing zone, that can be integral with the esterification reactor, in which at least a portion of the ACFC in the esterification vapor is converted to a liquid phase condensate, and continuously discharging the esterification vapor from the ACFC condensing zone as a DAFD vapor. There is also a DAFD vapor composition containing DAFD, water, unreacted alcohol, and by-products.

Abstract translation: 通过将呋喃-2,5-二羧酸（“FDCA”）加入到酯化反应器中并在醇化合物例如甲醇存在下制备呋喃-2,5-二羧酸二烷基酯（DAFD）蒸气组合物的方法， 进行酯化反应以形成含有DAFD，未反应的醇化合物，5-（烷氧羰基）呋喃-2-羧酸（ACFC）和水的酯化蒸气，并连续使酯化蒸气通过ACFC冷凝区，其可以是积分的 酯化反应器中，将酯化蒸气中的至少一部分ACFC转化为液相冷凝物，并且将作为DAFD蒸气的来自ACFC冷凝区的酯化蒸气连续排出。 还有一种含有DAFD，水，未反应的醇和副产物的DAFD蒸汽组合物。

公开(公告)号：US08790601B2

公开(公告)日：2014-07-29

申请号：US12957739

申请日：2010-12-01

Applicant: Ashfaq Shaikh ,  David Lange

Inventor： Ashfaq Shaikh ,  David Lange

IPC: B01J10/00 ,  C07C51/16 ,  B01J19/18 ,  B01J19/02 ,  C07C51/265

CPC classification number: B01J19/1862 ,  B01J10/00 ,  B01J19/02 ,  B01J19/1868 ,  B01J2219/00186 ,  C07C51/265 ,  C07C63/26

Abstract: Disclosed are process and apparatus for vertical splitting of the oxygen supply to a post-oxidation reactor. Further disclosed are process and apparatus for supplying reaction medium to a post-oxidation reactor at a mid-level inlet. Such apparatus and process can assist in reducing oxygen pinch throughout the post-oxidation reactor.

Abstract translation: 公开了用于将氧气供应垂直分离到后氧化反应器的方法和装置。 还公开了用于在中级入口向后氧化反应器供应反应介质的方法和装置。 这种设备和方法可以帮助减少整个后氧化反应器中的氧气。

公开(公告)号：US08541616B2

公开(公告)日：2013-09-24

申请号：US12691136

申请日：2010-01-21

Applicant: Laura Ellen Bustamante ,  William Lee Cook ,  Brent Alan Tennant ,  Ashfaq Shaikh ,  Joseph Luther Parker ,  Richard Andrew Virost ,  Michael Visneski

Inventor： Laura Ellen Bustamante ,  William Lee Cook ,  Brent Alan Tennant ,  Ashfaq Shaikh ,  Joseph Luther Parker ,  Richard Andrew Virost ,  Michael Visneski

IPC: C07C67/48

CPC classification number: C07C67/08 ,  C07C69/82

Abstract: An MHT reactor is added to a DMT process to eliminate the majority of the DMT/MHT recycle back to the DMT reactor, allowing for an increase in capacity to the DMT reactors.

Abstract translation: 将MHT反应器加入到DMT工艺中以消除大部分DMT / MHT循环回DMT反应器，从而增加DMT反应器的容量。