| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d1cc6ef92d2d41bf0950b7dbeb4ab969
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8a7f5875d17aa7fc3fbbd2bd0fb0e30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2981838ceb2ee37e34956fd96f833d95
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_892de85efe3b1c3cd56a7c6385d65064 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-09 |
| filingDate |
1999-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d353d332230f260b39785ec5a3d879af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_923bc0cb0cec2e7d22b0834f2fcb7509
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96f0b46e4f31b774bb3127f69dbf1e69 |
| publicationDate |
1999-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9938835-A1 |
| titleOfInvention |
Method for producing a purified alkaline metal terephthalate, derived from the products of saponification of polyterephthalates |
| abstract |
The invention concerns a method for producing terephthalate of alkaline metal and alkylene glycol from recuperated alkylene polyterephthalate. It comprises saponification of said alkylene terephthalates with an aqueous sodium solution, adding a sufficient volume of water to ensure solubilization of the entire alkaline metal terephthalate produced in the reaction medium liquid phase and crystallisation of the sodium terephthalate by concentration of said liquid phase. The resulting sodium terephthalate can be directly used for producing pure terephthalic acid usable for the renewed production of alkylene polyterephthalates to be used in the food industry. |
| priorityDate |
1998-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |