http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6229990-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2dcebf5a7f7ddc3b081f70e8ce1c4097 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E50-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P7-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-76 |
| filingDate | 1985-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1f96d6d00aa78f1e7be185937fea458 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_675eb3821d56c7012bc8cc0f6a7d99d7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53d8cc0938bf936871311a8f31674440 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0530fff811954fdfe96f9f0847f533e |
| publicationDate | 1987-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6229990-A |
| titleOfInvention | Purification of ethanol |
| abstract | PURPOSE: To economically obtain ethanol of high purity without containing high- and low- boiling impurities, by distilling a specific ethanol extract gas directly under supercritical conditions to remove high-boiling impurities, subjecting the resultant vapor phase to gas-liquid separation and removing CO 2 , etc. n CONSTITUTION: A raw material aqueous solution of ethanol is injected into a boundary part of an enriching section (1a) and stripping section (1b) of the first extraction column 1 set at about 40°C under about 150atm, and supercritical gas (C), e.g. CO 2 , in the supercritical state is blown from the column bottom part and brought into countercurrent contact therewith under isothermal and isobaric conditions to give an ethanol extract gas (G 1 ) from the column top. The resultant ethanol extract gas (G 1 ) is then introduced into the second extraction column 2 under the same high pressure as the first extraction column 1 and distilled while heating to take out a low-boiling component consisting of low-boiling impurities, supercritical gas, etc., from the column top as an extraction fluid (G 2 ). On the other hand, a high-boiling component is taken out of the column top as an extraction fluid (G 2 ) and a high-boiling component is taken out of the column bottom part as a high-boiling impurity (L 1 ) and released to the outside of the system. The above-mentioned fluid (G 2 ) is decompressed to about 50atm, led to the first CO 2 recovery column 3 and subjected to gas-liquid separation. The resultant vapor phase (G 3 ) as a solvent is circulated for use, and the liquid phase (L 2 ) is partially decompressed to ordinary pressure, led to the second CO 2 recovery column 4 and subjected to gas-liquid separation. The liquid phase part (L 3 ) is recovered as a product and the vapor phase part (G 4 ) as a solvent is compressed and circulated for use. n COPYRIGHT: (C)1987,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020512188-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5053563-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011003962-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9221638-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02229123-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0512332-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0249741-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5284983-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H041147-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011003962-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110461434-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11083979-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0329383-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5250271-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0292264-A |
| priorityDate | 1985-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID702 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419538410 |
Total number of triples: 40.