http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112718778-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-8628 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B09B5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B09B3-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-60 |
| filingDate | 2019-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112718778-B |
| titleOfInvention | A method for deep arsenic removal in acid system of waste SCR catalyst |
| abstract | The invention relates to a method for deep arsenic removal in an acidic system of a waste SCR catalyst. The method comprises the following steps: (1) pulverizing the waste SCR catalyst after ash removal, and then adding the waste SCR catalyst powder to a substance containing acid substances In the cleaning solution of the auxiliary agent, react and filter; (2) Wash the solid phase obtained by filtration, and dry to obtain the product. The method provided by the invention realizes the simultaneous removal of toxic components such as arsenic, potassium, sodium and iron by using a cleaning solution containing acidic substances and auxiliary agents, and the removal rate can reach more than 95%. The content of salicylic acid is less than 200 ppm; the method has a simple technical process and is easy to operate, avoids the alternating use of acid and alkali and the generation of waste brine, reduces production costs and environmental protection pressure, and conforms to the development trend of green and environmental protection. |
| priorityDate | 2019-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.