http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-217187971-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cb961bd0093e87bb75e094eea89e4694 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-047 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-00 |
| filingDate | 2021-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8d5eff9a5714b1a498f52d8c1976e80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be9689683ee530addd147b3ac119bd68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42b5d109eec1a4c36570bf2134356fc5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71e0d83c7874c30cb6d94c8832bbf8b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c928595a827553edab2b1bc1a08c992 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05253dc43439cbc4836965aac9af44c6 |
| publicationDate | 2022-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-217187971-U |
| titleOfInvention | Device for preparing electronic grade low arsenic yellow phosphorus |
| abstract | The utility model relates to a device for preparing electronic-grade low-arsenic yellow phosphorus. An industrial yellow phosphorus pipeline is connected to a rectification tower T1, the rectification tower T1 is connected to a rectification tower T2 through a high-purity arsenic-containing yellow phosphorus pipeline, and a nitric acid pipeline is connected to the rectification tower. T2 is connected, the top of the rectification tower T2 is connected to the electronic grade low arsenic yellow phosphorus storage tank, and the bottom of the rectification tower T2 is connected to the arsenic yellow phosphorus storage tank. In the process of rectification, a redox reaction occurs, arsenic in yellow phosphorus is oxidized to high-boiling arsenous acid, which is discharged from the bottom of the column, and the yellow phosphorus liquid refluxing at the top of the column is fully contacted with the rising yellow phosphorus vapor at the bottom of the column. , carry out vapor-liquid exchange, and further rectify and remove arsenic through vapor-liquid exchange, and extract electronic-grade low-arsenic yellow phosphorus from the top of the tower, and its arsenic content is less than 5ppb. Electronic grade low arsenic yellow phosphorus products are of great significance for the subsequent preparation of electronic grade phosphoric acid. |
| priorityDate | 2021-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.