http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9013543-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5202091df9de019fc995f2d266f9ecc2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D249-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D249-12 |
| filingDate | 1990-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70a32b7b480452d64ae79d3957732cad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b366a7105c17a3f34efa36aa85f54442 |
| publicationDate | 1990-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9013543-A1 |
| titleOfInvention | Improved process for low chloride 1,2,4-triazol-5-one |
| abstract | A process for producing 1,2,4-triazol-5-one reacts an aqueous hydrazine solution with urea to form a reaction mixture of semicarbazide and ammonia, the reaction mixture is concentrated and an aqueous solution of a mineral acid added to form a slurry of a salt of semicarbazide. A formic acid compound is admixed with the slurry, and the slurry heated to produce 1,2,4-triazol-5-one. The novel process results in the production of a semicarbazide salt in situ and eliminates a number of process steps required in processes of the prior art. |
| priorityDate | 1989-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.