http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-211896157-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_858c97da45a2c8b1c1beeea58f8b20da |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-74 |
| filingDate | 2020-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e429f38d4a1815224cd0b5a72829428f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5857fb99779efc525be610c451195bb7 |
| publicationDate | 2020-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-211896157-U |
| titleOfInvention | Nitric acid wastewater treatment system containing aluminum nitrate |
| abstract | The utility model discloses a nitric acid wastewater treatment system containing aluminum nitrate, which comprises a two-stage column-passing separation system and an aluminum sulfate purification system, wherein the aluminum sulfate purification system comprises an aluminum sulfate feeding tank, a preheater, a double-effect three-stage falling-film evaporator, a cooling crystallization tank, a crystallization transfer tank, a filter press, a high-level tank and a scraper, which are connected in sequence, wherein the double-effect three-stage falling-film evaporator is used for evaporating and concentrating aluminum sulfate solution for multiple times; the aluminum sulfate feeding tank is connected with the aluminum sulfate solution tank. The method for treating the nitric acid wastewater containing the aluminum nitrate based on the wastewater treatment system has small evaporation amount and low production risk; the replacement is thorough, the nitric acid content in the obtained aluminum sulfate solution is less, and aluminum sulfate better than the national standard can be further produced; the utility model discloses the technology is more energy-conserving, and the aluminium sulfate product quality that obtains is higher, and whole temperature is not too high again, is favorable to long-time steady operation. |
| priorityDate | 2020-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.