| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5188646b37ee050b3f975ec5aec9776c |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-4211
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-4205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 |
| filingDate |
2007-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f919728fb764343277331b08655461d1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f6d860f63150c8ade2dd4c1710aa197
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e992a316af444b1cfcf865aa68d5c0f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8abfc1b7fc6ff67206828a8c512b60bf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a56c24a93502c684eefe930b674c6439 |
| publicationDate |
2009-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20090008953-A |
| titleOfInvention |
Method for Purifying Discolored Methyl Ethyl Ketone |
| abstract |
The present invention relates to a method for purifying methyl ethyl ketone by removing the substance causing discoloration from methyl ethyl ketone (MEK: Methyl ethyl ketone), which has been changed in color by long-term storage. Into the distillation column of, characterized in that it comprises the step of distilling so that the reflux ratio is 4 ~ 6 under the conditions of the bottom temperature of 84 ~ 89 ℃ and the top temperature of 77 ~ 82 ℃. |
| priorityDate |
2007-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |