http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105732536-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 | 2016-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105732536-B |
| titleOfInvention | Solvent nitration method for 1,2-naphthoxydiazo-4-sulfonic acid |
| abstract | The invention provides a solvent nitration method for 1,2-naphthoxydiazo-4-sulfonic acid. According to the method, the 1,2-naphthoxydiazo-4-sulfonic acid is dissolved in organic solvents and then subjected to nitration, so that sulfuric acid consumption is reduced greatly, the organic solvents are easy to recycle, and product yield and purity are enhanced greatly; after mixed acid is added dropwise, reactants are subjected to cooling and standing treatment, so that product yield and purity are further enhanced. Compared with the traditional technique, the solvent nitration method for the 1,2-naphthoxydiazo-4-sulfonic acid has the advantages of less sulfuric acid consumption, low preparation cost, no need for refined recrystallization, simple technologies and high product yield and purity. |
| priorityDate | 2016-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.