| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dcb88e6c103e4974b104452c51fbb4a5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-22 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 |
| filingDate |
1997-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36c629f26eacf5969337f24ed97cdb34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdf49e20da889b709d784d526e9cb0b8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52609a59de9f72fdcf58523ad3e005cc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f95cb60a154bd92708defc0e4ca5dce |
| publicationDate |
1998-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5852201-A |
| titleOfInvention |
Process for the distillation of crude ester in the DMT/PTA process |
| abstract |
A process for preparing crude dimethyl terephthalate, comprises oxidizing a mixture comprising para-xylene and methyl para-toluate, esterifying the oxidized mixture with methanol, separating the resulting crude ester into fractions. By separating the crude ester with a distillation column containing structured packing and using a lower bottom temperature, product yield is increased, and the process is made more economical. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9102604-B1 |
| priorityDate |
1996-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |