| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d772aaa26fb620c10683254822d8f43a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-46
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/C07C69-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C55-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-64 |
| filingDate |
2016-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97f6402679fee52c0b66a5485cba41dc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86cc644cb29d6e23432fa8a72bc548cc |
| publicationDate |
2018-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-107848938-A |
| titleOfInvention |
Separation of organic acids from mixtures containing ammonium salts of organic acids |
| abstract |
The present invention relates to a method for separating an organic acid from a mixture of one or more ammonium salts of organic acids and other compounds by an integrated method. The method comprises suspending a mixture of one or more ammonium salts of organic acids and other compounds in an anhydrous hydrocarbon solvent or mixture thereof; wherein the selected hydrocarbon solvent or mixture thereof has a boiling point above 100°C and forms with water Azeotrope. The reaction mixture thus obtained is azeotropically dehydrated, followed by esterification of the basic salt of the organic acid by addition of an alcohol in the presence of a metal or metal salt; thereafter the individual esters formed are separated by distillation and hydrolyzed to obtain % purity of the corresponding organic acid. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108947066-A |
| priorityDate |
2015-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |