公开(公告)号：WO2021231556A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/031969

申请日：2021-05-12

Applicant: ARCHER DANIELS MIDLAND COMPANY

Inventor： INGRAM, Andrew ,  HAGBERG, Erik ,  MA, Chi-Cheng ,  MCCLURG, Jessica ,  STENSRUD, Kenneth

IPC: C07D307/68 ,  C07D307/46 ,  C07C51/16 ,  C07C55/02

Abstract: Processes for the oxidation of carbohydrate dehydration products, such as furanics that can be oxidized to the bio-based monomer 2,5-furandicarboxylic acid (FDCA), are disclosed, according to which certain co-feeds, having been discovered to impart a beneficial reaction stabilizing effect, are oxidized together with the carbohydrate dehydration products. This can advantageously counteract, in whole or in part, detrimental effects of humin impurities present in oxidation feed, with such impurities having been generated as byproducts of the upstream dehydrating step. An important co-feed is para-xylene that can be co-oxidized to form the petroleum-based monomer terephthalic acid (TPA), such that co-processing can beneficially yield two valuable monomers, while improving performance, particularly in terms of reaction stability, over comparable processes in which only the first monomer is produced. Related aspects involve opportunities for retrofitting existing monomer production facilities to enable co-processing of carbohydrate dehydration products that can lead to the above-noted advantages.

公开(公告)号：WO2022081495A1

公开(公告)日：2022-04-21

申请号：PCT/US2021/054451

申请日：2021-10-11

Applicant: ARCHER DANIELS MIDLAND COMPANY

Inventor： INGRAM, Andrew

IPC: C07D307/46

Abstract: Processes for oxidative pretreatment of carbohydrate dehydration products are disclosed, which relate to the discovery that functional groups of humins, such as those that result in, or lead to, color formation (e.g., aldehyde groups and/or groups having conjugated double bonds) may be more readily converted by oxidation (in some cases "bleached") than FDCA-forming furanics. This selective oxidation of humins may use milder oxidation conditions and/or a different reaction system, compared to respective conditions and systems used for oxidation of furan ring-containing compounds. Oxidative pretreatment can beneficially promote the selective oxidation of humin functional groups over FDCA-forming furanics, with the overall result of modifying humins in a manner that can provide a number of improvements. These may particularly reside in the further processing of the obtained, pretreated dehydration product, such as in the overall manufacture of bio-based poly(alkylene furan dicarboxylate) copolymers, a prominent example of these being poly(ethylene furan dicarboxylate), or PEF.

公开(公告)号：WO2021101834A1

公开(公告)日：2021-05-27

申请号：PCT/US2020/060711

申请日：2020-11-16

Applicant: ARCHER DANIELS MIDLAND COMPANY

Inventor： ALBRECHT, Karl ,  BRAZDIL, James ,  INGRAM, Andrew

IPC: C07C51/487 ,  B01J23/42 ,  B01J23/52 ,  B01J21/06

Abstract: Various processes for preparing aldaric acids, aldonic acids, uronic acids, and/or lactone(s) thereof are described. For example, processes for preparing a C5-C6 aldaric acid and/or lactone(s) thereof by the catalytic oxidation of a C5-C6 aldonic acid and/or lactone(s) thereof and/or a C5-C6 aldose are described.