http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002053556-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f8cfa5aee4410611b5c562275c9f8e3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-807 |
| filingDate | 2000-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2dd87b5d5c1aabdac46dc0ea68902b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf7fd5af956dc68030749d608f576216 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff92c7d28a2041854d05e3b659b68993 |
| publicationDate | 2002-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2002053556-A |
| titleOfInvention | Method for producing pyridinecarboxylic acid |
| abstract | (57) [Problem] To provide a method for producing high-purity pyridinecarboxylic acid with high yield. SOLUTION: A step of contacting an alkylpyridine with oxygen in the presence of a specific imide compound (reaction step 1), (B) a step of separating a crystallization component containing pyridinecarboxylic acid and a non-crystallization component containing a catalyst from the reaction mixture (crystallization step 2 and filtration step 3), and separating and purifying pyridinecarboxylic acid from the crystallization component. Through the steps (washing step 4 and drying step 5), pyridinecarboxylic acid is efficiently produced. If necessary, the reaction mixture from the reactor 1 may be subjected to a concentration step. |
| priorityDate | 2000-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 152.