| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e83d93ed02bbd6159e99b5a7796e3686 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-60 |
| filingDate |
1997-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2007-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25857643d190a039c3b89c39ae2c1853 |
| publicationDate |
2007-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2264135-C |
| titleOfInvention |
Process for the preparation of urea |
| abstract |
In the present process for the preparation of urea, an off-gas stream released during the synthesis of melamine in a high-pressure melamine process which consists predominantly of ammonia and carbon dioxide is introduced into at least one high-pressure section of a urea stripping plant and is used in the synthesis of urea. The off-gas stream can be used directly without any further treatment. |
| priorityDate |
1996-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |