| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_748646e4f7e8a78f33478e3da2f6a727 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P7-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C53-122 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P7-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 |
| filingDate |
2012-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_385963e55742f64088a73bdec86a82b6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_130e4a90c973243ebf24c5d27fd2238b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf93e701a04f62ada7f18ee4d270d3b4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73cafa10a9ada240dd99729b06f90a18 |
| publicationDate |
2014-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2785678-A1 |
| titleOfInvention |
Method for recovering and purifying propionic acid |
| abstract |
The present invention provides a method for purifying and recovering propionic acid from an aqueous mixture containing a fermentation product obtained from a fermentation process using glycerol as substrate, the method comprising optionally acidifying the aqueous mixture to a pH below 4.5, subjecting the aqueous mixture to an extraction with extracting agent containing a heavy extractant and optionally a light extractant as a diluent to obtain an extract comprising the extracting agent and organic acids, and a raffinate comprising water and any unreacted glycerol, and subjecting the extract to vacuum evaporation to separate propionic acid-containing organic acids from the extractant. |
| priorityDate |
2011-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |