http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4230885-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af7c9c966acd2ef7eca105d82d8d0991 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-416 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-41 |
| filingDate | 1978-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1980-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_024ff0c614f75a541cc971ba42ae72ec |
| publicationDate | 1980-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4230885-A |
| titleOfInvention | Conversion of aromatic carboxylates to terephthalate |
| abstract | Mixture of salts of aromatic mono- or polycarboxylic acids are converted to terephthalate salts in presence of selected catalyst or catalyst mixture, e.g., a mixture of potassium, sodium and cesium benzoates, is disproportionated in the presence of zinc and/or a zinc salt or a mixture of zinc and/or cadmium and a zinc and/or cadmium salt. The mixture of compounds which are to be converted to terephthalate salts will contain at least those of two different alkali metals. A formula m+n is equal to at least 4 is given for determining the catalyst, or catalysts, to be employed. In one embodiment, now preferred, a mixture of sodium, potassium, and cesium benzoates is heated at a reaction temperature of the order of 350 DEG -430 DEG C., more preferably 380 DEG -415 DEG C., in presence of a catalytic mixture of zinc and cadmium benzoates to obtain high yields and rates of reaction at temperatures substantially below those needed in the prior art for similar or better yields, etc. Other compounds to be converted, catalysts and embodiments are disclosed. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11498894-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017004441-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017004349-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10703702-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0359098-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9719037-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9718755-B2 |
| priorityDate | 1978-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 154.