http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1227075-A4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D167-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-1285 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-128 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D167-08 |
| filingDate | 2000-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_782aa6bbddae93054df8031d8a2b3002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75af0b6d87266423c89e49e07c51af85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20673648149982cf574205f88a74dbec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80f758b57d2752ec14280fc1b8f870f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc7ec2e9b6cb7b6a018512b7cbebe4f9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a57de50cda00e9d147cfc7986313ab26 |
| publicationDate | 2004-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1227075-A4 |
| titleOfInvention | PROCESS FOR SEPARATION AND RECOVERY OF DIMETHYLTEREPHTHALATE AND ETHYLENE GLYCOL FROM POLYESTER RESIDUES |
| abstract | A method for separating and recovering dimethyl terephthalate (DMT) and ethylene glycol (EG) from a polyester (polyethylene terephthalate (PET)) waste containing foreign matter, which comprises a step of treating a polyester waste in the EG containing a depolymerization catalyst at 175 to 190°C under 0.1 to 0.5 Mpa and removing the solid foreign matter floating on the surface of the resultant liquid reaction mixture by the flotation method, a step of removing the residual solid foreign matter from the resultant mixture by the solid-liquid separation method, a step of subjecting the resultant solution to distillation and condensation and recovering the EG having distilled out, a step of adding a transesterification catalyst and methanol to the resulting residual solution to effect a transesterification between the residual solution and methanol to thereby form DMT and EG and subjecting the resultant reaction mixture to a recrystallization treatment followed by a centrifugal separation treatment, to thereby separate the mixture into a cake of DMT and a mixed solution, and subjecting the cake to rectification to distill out and recover a high purity DMT, a step of subjecting the residual mixed solution to distillation to recover methanol, and a step of subjecting the resultant residue to distillation to recover EG. |
| priorityDate | 1999-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.