http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0216204-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C25-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C25-22 |
| filingDate | 1986-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a1605981559cdbb1b7e7ce1a0987249 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9cac3c4bf7e1cb30c6e24059a5f4ea7 |
| publicationDate | 1987-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0216204-A1 |
| titleOfInvention | Process for the preparation of 1,3,6,8-tetrabromopyrene |
| abstract | A process for the preparation of 1,3,6,8-tetrabromopyrene by bromination of pyrene in aqueous suspension with simultaneous reoxidation of the resulting hydrogen bromide to bromine by means of an oxidizing agent, characterized in that pyrene in a highly concentrated aqueous suspension with a pyrene / water weight ratio of 1: 1.2 to react with bromine at temperatures from 40 ° to 65 ° C with simultaneous reoxidation of the hydrogen bromide formed to bromine with an oxidizing agent, which completes bromination by heating the reaction mixture to temperatures from 70 to 130 ° C, excess bromine with a reducing agent to hydrogen bromide and the 1,3,6,8-tetrabromopyrene formed, preferably without intermediate insulation, subjected to an alkaline aftertreatment at temperatures from 40 'to 100 ° C. in the pH range 8.5 to 12. |
| priorityDate | 1985-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.