US 11,891,370 B2
Processes for the preparation of 2,5-furandicarboxylic acid and intermediates and derivatives thereof
Valery Sokolovskii, Santa Clara, CA (US); Vincent J. Murphy, San Jose, CA (US); Thomas R. Boussie, Menlo Park, CA (US); Gary M. Diamond, Menlo Park, CA (US); Eric L. Dias, Belmont, CA (US); Guang Zhu, Union City, CA (US); James M. Longmire, Sunnyvale, CA (US); Stanley Herrmann, Oakland, CA (US); Staffan Torssell, Bromma (SE); and Mayya Lavrenko, Campbell, CA (US)
Assigned to Stora Enso Ojy, Helsinki (FI)
Filed by Stora Enso Oyj, Helsinki (FI)
Filed on Feb. 15, 2023, as Appl. No. 18/169,807.
Application 18/169,807 is a continuation of application No. 17/098,102, filed on Nov. 13, 2020, granted, now 11,613,523.
Application 17/098,102 is a continuation of application No. 16/841,478, filed on Apr. 6, 2020, granted, now 10,851,074, issued on Dec. 1, 2020.
Application 16/841,478 is a continuation of application No. 16/552,096, filed on Aug. 27, 2019, granted, now 10,654,819, issued on May 19, 2020.
Application 16/552,096 is a continuation of application No. 16/264,188, filed on Jan. 31, 2019, granted, now 10,442,780, issued on Oct. 15, 2019.
Application 16/264,188 is a continuation of application No. 15/404,996, filed on Jan. 12, 2017, granted, now 10,208,006, issued on Feb. 19, 2019.
Claims priority of provisional application 62/278,332, filed on Jan. 13, 2016.
Prior Publication US 2023/0278975 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C07D 307/68 (2006.01); B01J 8/02 (2006.01)
CPC C07D 307/68 (2013.01) [B01J 8/02 (2013.01); B01J 2208/00893 (2013.01); Y02P 20/582 (2015.11)] 41 Claims
OG exemplary drawing
 
1. A process for producing a first 2,5-furandicarboxylic acid (FDCA) pathway product from a first furanic oxidation substrate, the process comprising:
providing a crude oxidation substrate comprising a first furanic oxidation substrate, a first oxidation solvent and one or more additional components;
separating the one or more additional components from the crude oxidation substrate to form a first oxidation feedstock comprising the first furanic oxidation substrate and the first oxidation solvent; and
(a) contacting the first oxidation feedstock with oxygen in the presence of a first heterogeneous oxidation catalyst under conditions sufficient to form a reaction mixture for oxidizing the first furanic oxidation substrate to a first FDCA pathway product, and producing the first FDCA pathway product;
wherein the first oxidation solvent is a multi-component solvent comprising water and a water-miscible aprotic organic solvent;
wherein no base is added to the reaction mixture during (first) contacting step (a); and
wherein the first heterogeneous oxidation catalyst comprises a first solid support and a first noble metal; and
(b) recovering or isolating the first FDCA pathway product from the reaction mixture.