| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5bad3808c8a7203f27c7c254fade6add
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a0f0b3739b0fbc95d8907632271ed172 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-141 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-04 |
| filingDate |
1989-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_478a3ade1b4f8f1240bd5232e86e2855
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b799785054c1f8079606e5e413cef5ce |
| publicationDate |
1991-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CH-678425-A5 |
| titleOfInvention |
Urea prodn. - from ammonia, ammonium carbonate and carbon di:oxide by multistage process |
| abstract |
Ammonium carbonate is dissolved in min. amt. of water, distilled to provide vapour phase of NH3 and CO2, condensing vapours, forming soln. and feeding in fresh NH3 to provide the desired urea. USE/ADVANTAGE - Breaking down and reforming of ammonium carbonate provides purer urea by a simpler process. As intermediate stage in prodn. of nitrogenous fertiliser. |
| priorityDate |
1989-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |