http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AR-093800-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3ff58270003a951457bd7928ad105a77 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-88 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-56 |
| filingDate | 2013-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79ec1e9c6d173c6829cff2a6ee487a40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_981fa722551ace23b43e1059e66f64c3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_423aa9e5d1725af3aa72cecd904c2199 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f120ccdc154e28f0e01c7c678eccf8d3 |
| publicationDate | 2015-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | AR-093800-A1 |
| titleOfInvention | INTEGRATED PROCESS FOR PRODUCTION OF 2,5-FURANDICARBOXILIC ACID |
| abstract | An integrated process for the production of 2.5 FDCA in two stages is described, a first stage for the generation of 5-HMF from streams comprising an aqueous solution of carbohydrates, where water in the subcritical state acts as a catalyst dehydrating carbohydrates and generating 5-HMF, and a second stage of oxidation of 5-HFM to obtain 2.5 FDCA. Claim 1: Integrated process for the production of 2,5-furandicarboxylic acid, characterized by comprising the following steps: a) introducing a charge consisting of an aqueous stream containing carbohydrates in concentrations ranging from 1% to 50%, in a reactor operated at temperatures in the range of 150 ° C to 300 ° C, under pressure between 300 psia to 1800 psia, at a space velocity between 0.20 to 4 h⁻¹, in order to promote the dehydration reaction of carbohydrates and the formation of 5-HMF with selectivity above 60% mol / mol; b) filter the 5-HMF rich stream obtained in a way to remove humins and salts, by-products generated in the dehydration of the charge; c) adjust the pH of the 5-HMF rich stream already filtered to values between 6.5 and 7.5; d) promote the contact of the 5-HMF rich current, already filtered and with the adjusted pH, with an ion exchange ream of acidic characteristics previously exchanged with cations such as Na⁺, K⁺, Ca²⁺ (preferentially) or others, so as to obtain two streams: a first stream containing 5-HMF in concentrations above 90% and a second stream containing carbohydrates that have not reacted; e) conduct the stream containing carbohydrates that have not reacted to the dehydration reactor of item a); f) adjust the pH of the current containing 5-HMF to values in the range between 6.5 and 14; g) promote the contact of the current containing 5-HMF, with the pH already adjusted, with a current rich in oxygen, in a fixed bed reactor, where the catalyst is a heterogeneous supported metal catalyst, or even a catalyst mass metal, so as to obtain conversions of 5-HMF to 2.5 FDCA above 90% mol / mol; h) recover the 2.5 FDCA produced in g) by precipitation followed by filtration. |
| priorityDate | 2012-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.