http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-215365307-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c6761bcd867937504e0018c7e2c4bb63 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-10 |
| filingDate | 2021-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5e4ea709619f33a6f8eab292a667c56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb94085c8ba352c2c8a50fd7636d5910 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8893bd447a5ea99a69e7e8cde54e90d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74a95a7f7590399233d6880c77e0aa84 |
| publicationDate | 2021-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-215365307-U |
| titleOfInvention | Integrated device for extracting and separating nicotinic acid from 3-cyanopyridine wastewater |
| abstract | The utility model discloses an integrated device for extracting and separating nicotinic acid from 3-cyanopyridine wastewater, which comprises a bearing support, wherein a rack is arranged on the bearing support, a heating treatment mechanism is arranged at the upper end of the rack, a separation and purification mechanism is arranged in the middle of the rack, and a crystallization mechanism is arranged at the lower end of the rack. According to the integrated device for extracting and separating the nicotinic acid from the 3-cyanopyridine wastewater, the 3-cyanopyridine wastewater enters the rack through the feed inlet, is heated and concentrated to 10% -20% of the original volume, the isolation sheet is opened to enable the 3-cyanopyridine wastewater to pass through the activated carbon fiber membrane, most impurities and pigments are removed, the pH and the temperature are adjusted to enable nicotinic acid in the purified 3-cyanopyridine wastewater to be crystallized, a bottom valve is opened to discharge crystallization mother liquor after crystallization is completed, a nicotinic acid crude product on the filter paper layer is collected, large batches of 3-cyanopyridine wastewater can be treated, the production cost is reduced, the raw material utilization rate is improved, the process is simplified, and the equipment energy consumption is reduced. |
| priorityDate | 2021-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.