http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2000239221-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3593a13cc4ab7079f7a69ef885b5a005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 |
| filingDate | 1999-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78cffb567038ab0c411e3f62c82d9241 |
| publicationDate | 2000-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2000239221-A |
| titleOfInvention | Purification method of 3-chloropyruvic acid |
| abstract | PROBLEM TO BE SOLVED: To efficiently remove unreacted pyruvic acid and by-product dichloride and trichloride contained as impurities in synthesized 3-chloropyruvic acid. Provided is a method for purifying an acid. SOLUTION: The temperature of crude 3-pyruvic acid containing impurities such as unreacted pyruvic acid and dichloride is controlled by a first heating temperature of 40 to 60 ° C and a second heating temperature of 65 to 85 ° C. Purification is performed by the fractionated sublimation method. |
| priorityDate | 1999-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.