http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104628669-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D271-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D271-12 |
| filingDate | 2014-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104628669-B |
| titleOfInvention | A kind of oxysome and preparation method thereof |
| abstract | The present invention relates to chemical products and preparation method, particularly to oxysome and preparation method thereof.Described method comprises the steps: to add quantitative ethyl naphthol in flask, water, auxiliary agent stirring carries out rising temperature for dissolving cooling and precipitates out, circulation beating, it is subsequently adding sodium nitrite solution, continue to cool to-3～5 DEG C, drip the recovery dilute sulfuric acid of nitrated generation, terminal point control is PH=1-2, insulated and stirred adds quantitatively burnt sub-and catalyst after reacting 2 hours, it is warmed up to 60～65 DEG C gradually, stand overnight, washing is to PH >=3.5, filter cake adds water and pulls an oar, then dropping sodium nitrite solution controls temperature and is 20～30 DEG C and carries out diazonium, filter, filtrate acid out, drip the recovery dilute sulfuric acid of nitrated generation, Controlled acidity is 12～15%, it is filtered drying up, obtain tan crystals.Solve the problem that oxysome yield is on the low side. |
| priorityDate | 2014-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.