| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e8d2797328681695722858048de3b5ca
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5221c7cdcfa330f9fb744eef1b815488
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f47c2e8f42da2c155ea369fb86cdfbc7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b7aa5acba441c90e46f675e110267a23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_53136d7d3ef787e51b796c810e5621e0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_82f30910f226a38bd83da6e571d3c67b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_de6aa3cf6c6927db269034ea2c6bd239 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48 |
| classificationIPCInventive |
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
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 |
| filingDate |
2000-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83b1b62b1bada51c8a437b0939dc9f24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3fe6af97c3d2ab66f74e33e24b86c58f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e09480944e69dcad9d6327c6f707f0cf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88838c70bd5a3612cb9ff2a7cf0713d2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0bfe8020bbfe4649a6b954b700f66c01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88f750b3dcc67fc401fb8ab46e8f47cc |
| publicationDate |
2001-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0107391-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). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101130909-B1 |
| priorityDate |
1999-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |