| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c999fee6428152a996011d506925c2d7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-347
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-10 |
| filingDate |
2004-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44b3c6d080c0303c13438f0695e7175c |
| publicationDate |
2005-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2005263698-A |
| titleOfInvention |
Method for producing oxalic acid |
| abstract |
To efficiently produce oxalic acid from ammonium oxalate. SOLUTION: A step of adding monocarboxylic acid to ammonium oxalate to form and precipitate oxalic acid is performed in multiple stages in the presence of alcohol, and the final stage is performed in an alcohol concentration range of 0.1 ppm to 10%. The oxalic acid crystals precipitated in the final stage are collected to obtain oxalic acid. [Selection] Figure 1 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013523640-A |
| priorityDate |
2004-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |