http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0751121-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_794c0541eeb177127ba84aa959f0316a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J12-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-00 |
| filingDate | 1995-12-21^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77ca64b075f3bde54798cd6c9533b8fc |
| publicationDate | 1998-06-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0751121-A3 |
| titleOfInvention | Process for the synthesis of urea comprising two separate reaction zones |
| abstract | A process for the synthesis of urea starting from ammonia and carbon dioxide, comprisingna reaction step carried out in at least two distinct operating zones basically at the same pressure,nbut having a different operating temperature, the difference being preferably between 5 and 60°C,nand subsequent separation steps of the non-converted reagents, wherein a gaseous stream isntransferred from the first zone, at a higher temperature, to the second zone, at a lowerntemperature, and a liquid stream, containing urea and/or ammonium carbamate, is transferrednfrom the second zone to the first, so that said gaseous stream is preferably at least 5% by weightnwith respect to the stream effluent from the first zone to the subsequent separation steps. Thisnprocess allows a ratio urea/(urea+carbamate), in the stream leaving said reaction step, of morenthan 70%, to be obtained. |
| priorityDate | 1995-06-30^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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