公开(公告)号：US20140142328A1

公开(公告)日：2014-05-22

申请号：US14084165

申请日：2013-11-19

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： Ashfaq Shaikh ,  Kenny R. Parker ,  Mesfin Ejerssa Janka ,  Lee R. Partin

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 a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry via oxidative purification in a low temperature post-oxidation zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a high temperature post oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to from a crystallized slurry stream.

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。 该方法包括氧化包含至少一种可氧化化合物的进料流，以产生包含FDCA的粗羧酸浆料，通过在低温后氧化区域中氧化纯化从粗羧酸浆料中除去杂质以形成低杂质浆料流。 低杂质浆料流在高温后氧化区进一步处理，以产生二次氧化淤浆料流，该二次氧化浆料流从结晶料浆流送至结晶区。

公开(公告)号：US09156805B2

公开(公告)日：2015-10-13

申请号：US14084165

申请日：2013-11-19

Applicant: Eastman Chemical Company

Inventor： Ashfaq Shaikh ,  Kenny R. Parker ,  Mesfin Ejerssa Janka ,  Lee R. Partin

IPC: C07D307/34 ,  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 a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry via oxidative purification in a low temperature post-oxidation zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a high temperature post oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to from a crystallized slurry stream.

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。 该方法包括氧化包含至少一种可氧化化合物的进料流，以产生包含FDCA的粗羧酸浆料，通过在低温后氧化区域中氧化纯化从粗羧酸浆料中除去杂质以形成低杂质浆料流。 低杂质浆料流在高温后氧化区进一步处理，以产生二次氧化淤浆料流，该二次氧化浆料流从结晶料浆流送至结晶区。