| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a4d3ea8074b1f14fa85f48140c8b5b38 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D1-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-04 |
| filingDate |
2016-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45d1823d1994c930a23493b27d588dac |
| publicationDate |
2017-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2017097981-A1 |
| titleOfInvention |
A urea process with high-temperature stripping |
| abstract |
A shell-and-tube stripper for carbamate decomposition and ammonia recovery from a urea solution comprising a bundle of heated tubes, said tubes being fed with said urea solution and carbon dioxide as stripping medium, the urea solutions forming a liquid falling film on the internal surface of the tubes and the carbon dioxide forming a counter-current gaseous flow; said tubes comprise an external layer made of super austenitic or super duplex stainless steel and an internal layer made of zirconium, said internal layer reaching temperatures higher than 220°C. |
| priorityDate |
2015-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |