http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2063344-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dcb88e6c103e4974b104452c51fbb4a5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-39 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 |
| filingDate | 1990-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1995-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc9b70e5457ea53f435d0293002fc819 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f95cb60a154bd92708defc0e4ca5dce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fca9c9632269f8732dae94d1d0a992d2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4622665e52c3b058ca48ae7a4ef9c66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b4bea9634a101267709d6220bc99888 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9af42dcd300dd125a2e7e5878e19d063 |
| publicationDate | 1995-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2063344-T3 |
| titleOfInvention | PROCEDURE FOR THE PREPARATION OF AN INTERMEDIATE PRODUCT OF "DMT" OF CERTAIN PURITY, AS WELL AS ITS FURTHER TREATMENT TO GIVE "DMT" VERY PURE AND / OR TEREFTALICO ACID MEDIALLY PURE OR VERY PURE. |
| abstract | THE INVENTION REFERS TO A PROCESS FOR MANUFACTURING AN INTERMEDIATE DMT PRODUCT AND ITS FURTHER PROCESSING UNTIL I OBTAIN HIGH PURITY DMT AND HIGH AND PURITY PURITY TEREFTALIC ACID. THE INTERMEDIATE DMT PRODUCT IS MANUFACTURED BY JOINT OXIDATION OF A MIXTURE CONTAINING PREVIOUSLY PARAMETHYLOL (P-X) AND METHYL ACID ESTER OF PARA-TOLUENE (P-TE) IN A LIQUID PHASE WITH GAS CONTAINING OXYGEN. THE ACIDS PRODUCED ARE ESTERIFIED WITH METHANOL, AND THE PRODUCTS OF ESTERIFICATION ARE SEPARATED IN A FRACTURE RICH IN P-TE, A FRACTION II THAT CONTAINS MORE THAN 99% BY WEIGHT OF DMT AND ITS ISOMERS AND A RESIDUAL FRACTION III WITH A POINT OF BOILING HIGH, AND THE FRACTION I OF P-TE RECYCLES TO OXIDATION. THE RESIDUAL FRACTION III HAS A DMT CONTENT BETWEEN 15 AND 70% BY WEIGHT AND THE DMT FRACTION I IS PURIFIED THROUGH THE RECRISTALIZATION OF THE SIMPLE SOLVENT IN METHANOL TO PRODUCE THE INTERMEDIATE PRODUCT OF DMT IN WHICH HYDROXYBENZOATE METHYL -BME) AND METHYL ELTEREFTALATO (TAE) TOGETHER TOTAL LESS THAN 200 PPM. THE POST PROCESSING OF THE INTERMEDIATE PRODUCT FROM DMT TO ULTRA PURE DMT IS CARRIED OUT THROUGH A SECOND RECRISTALATION, THE POST PROCESSING OF TEREFTALIC ACID WASHING THE INTERMEDIATE PRODUCT OF DMT IN METHANOL, HYDROLYSIS, POSSIBLE AGE, NORMALLY NECESSARY. |
| priorityDate | 1989-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.