http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3998251-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33c922e05f6133b7d72dbb849d77487d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-143 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-08 |
| filingDate | 2021-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48cb69b5420a4dc4295a7de2b4189d4c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45f25c4b77b503a4cab8947b306ef386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45dbb4db68fd25ba67551d40b433813b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9dc35046ce4fc09a851531b7d6fd7bc8 |
| publicationDate | 2022-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3998251-A1 |
| titleOfInvention | Nitrile-based monomer recovery method and recovery apparatus |
| abstract | Provided is a recovery method of a nitrile-based monomer, specifically, a recovery method of a nitrile-based monomer including: supplying a feed stream including a nitrile-based monomer, a nitrogen compound, and water to a first distillation tower to separate the stream into a lower discharge stream including water and an upper discharge stream including the nitrile-based monomer, the nitrogen compound, and water (S10); condensing the upper discharge stream of the first distillation tower and supplying the condensed stream to a decanter to separate the stream into a water layer and an organic layer including the nitrile-based monomer and the nitrogen compound (S20); supplying an organic layer stream discharged from the decanter to a second distillation tower to separate the stream into a lower discharge stream including the nitrogen compound and an upper discharge stream including the nitrile-based monomer and the nitrogen compound (S30); and splitting a part of the upper discharge stream from the second distillation tower and refluxing the split stream to the second distillation tower (S40), is provided. |
| priorityDate | 2020-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.