| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-02 |
| filingDate |
1978-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2593b259771bc7985a1ed40d6e7eb2b5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1acb37652f17a347cac6c2b037a4e5df |
| publicationDate |
1980-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4212994-A |
| titleOfInvention |
Process for the preparation of carboxylic acid |
| abstract |
A carboxylic acid is prepared by contacting an aqueous solution of the alkali metal or ammonium carboxylate with a liquid cation exchange agent dissolved in an organic solvent in which the carboxylic acid is substantially water immiscible. As an example, an aqueous solution of trisodium N-(2-hydroxyethyl)ethylenediaminetriacetate is contacted with di(2-ethylhexyl)phosphoric acid in kerosene to thereby form N-(2-hydroxyethyl)ethylenediaminetriacetic acid in the aqueous solution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010204082-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009071630-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0200106-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009145189-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007015930-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102766059-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009071630-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0200106-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6451224-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102766059-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8293696-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7211682-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6066763-A |
| priorityDate |
1978-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |