http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0792858-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C15-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-24 |
| filingDate | 1997-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76facd79b44674a2e44a8e4c84e5490f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa7926b86cd3ef486250867d23cd9152 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73f3bb25c18298490ff0060b04d7bd54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bbe51f891c041a35e5c8f3503d30ae7 |
| publicationDate | 1997-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0792858-A2 |
| titleOfInvention | Process for the purification of 2,6-dimethylnaphthalene and its use in the production of 2,6-naphthalenedicarboxylic acid |
| abstract | The present invention relates to processes for the production of highly pure 2,6-dimethylnaphthalene (2,6-DMN) by crytallisation of a mixture of DMN isomers; it also relates to a process for producing a 2,6-naphthalenedicarboxylic acid and an ester thereof from the 2,6-DMN obtained by the above process. n In a first aspect, crystallisation is carried out in the presence of a solvent, preferably or alicyclic saturated hydrocarbon. In a second aspect, suppression of the adhesion of the crystals to the inside wall of the crystalliser is achieved by a number of methods. In a third aspect, means are provided to suppress the agglomeration of the crystals. In a fourth aspect, the growth of the crystals is increased. In a fifth aspect, a filtration apparatus, preferably a rotatory vacuum filter, is used, the filtered cake is peeled off from a filter cloth, and said cloth is cleaned with a solvent. n Finally, the purified 2,6-DMN is oxidised in the liquid phase in order to produce 2,6-naphthalenedicarboxylic acid, which can be esterified. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6737558-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1153904-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6153808-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100316139-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0908437-A1 |
| priorityDate | 1996-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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