http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1198446-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_82f30910f226a38bd83da6e571d3c67b |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 |
| filingDate | 2000-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f71c9346ce504b1c7d361975ab8a3d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba45f8753f5934f933b6c53bf71bddc2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ad5db548b243483b2ee1ea98a96cb73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9aa0f480fa0adb600c9cc02e2cd07a42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf38fd5fe44bd4869ce1d3ab3772875b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3ccf6df3db0f19764d0560d7c15c67d |
| publicationDate | 2002-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1198446-A1 |
| titleOfInvention | Method for separating and purifying an aqueous mixture that mainly consists of acetic acid and formic acid |
| abstract | The invention relates to a method for separating and purifying an aqueous mixture that mainly consists of acetic acid, formic acid and high-boiling substances by extraction with a solvent in a cyclic process. The inventive method is characterized in that the flow of raffinate is fed to a solvent stripping column (11) with the major part of the water in order to remove the water from the cycle. The flow of extract is fed to a solvent recovery distillation column (8). In a first step, a mixture (A) that consists of water and solvent, is separated by overhead distillation. A mixture (B) that consists of acetic acid, formic acid and high-boiling substances is separated via a sump. Once the formic acid is removed in a column (29), mixture (B) is separated in an acetic acid distillation column to give pure acetic acid and high-boiling substances. Mixture (A) is fed to a phase separator and the aqueous phase is returned to the solvent stripping column (11) together with any residual portions of the solvent while the organic phase is returned to the extractor (8). |
| priorityDate | 1999-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.