| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fd160b48bd4cc483cafd142249836250 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C6-123
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C6-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 |
| filingDate |
1999-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_195460675bfe8794401fa760628f1ef2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72269eb98f33b6833bf24bd65729ffe9 |
| publicationDate |
2001-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-9912567-A |
| titleOfInvention |
Process for the production of terephthalic acid and / or dimethyl terephthalate |
| abstract |
Invention Patent: <B> "PROCESS FOR THE PRODUCTION OF TEREFTALLIC ACID AND / OR DIMETHYL TEREFTALATE" <D>. A process for the production of terephthalic acid and / or dimethyl terephthalate includes contacting a reaction stream containing toluene with a first catalyst under conditions of disproportion of toluene to produce an intermediate product stream of negligible para-xylene with orthoxylene. The first catalyst includes a crystalline molecular sieve that has an ortho-xylene diffusion rate of at least 50 minutes. The first catalyst can be modified through selection with a silicon or carbon compound. The intermediate product stream, without the need for purification of para-xylene, is oxidized to dimethyl terephthalic acid. |
| priorityDate |
1998-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |