| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d669af06cb2abbcd6823699582a97002 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-81 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-81 |
| filingDate |
1981-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1982-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f267ef6636684120cf0192221c4e216
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf28121e22392363afb62b469e6d9ede
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1b11b9285211440fc1746f3f087e499
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_90edb1f6fabcc4512d8b28d211bc61e8 |
| publicationDate |
1982-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1136148-A |
| titleOfInvention |
Process for the purification of nicotinic acid amide i i |
| abstract |
ABSTRACT OF THE DISCLOSURE Crude nicotinamide is purified by a recrystallization and in this way freed especially from nicotinic acid and salts of nicotinic acid. As solvent there is used a 2-methylpropanol-1 containing water. The recrystallization takes place at a pH between about 7 and 10. In this process an outstandingly pure nicotamide is obtained with favorable yield with only a single recrystallization. |
| priorityDate |
1980-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |