http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104073640-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 |
| filingDate | 2014-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104073640-B |
| titleOfInvention | Trapping agent and the application thereof of platinum metals is reclaimed in nitric acid industry converter for ammonia oxidation |
| abstract | The present invention relates to the trapping agent reclaiming platinum metals use from nitric acid production process.Technology is as follows: 1. add quadrol 1 part, thanomin 0.2-1 part and water 2-6 part in a reservoir, and add two oxalic acid palladium acid 0.7-1.5 part and nickelous oxalate 0.05-0.2 part while stirring, in whipping process, solution temperature controls at 20 ~ 30 DEG C, stirs 2 ~ 3 hours; 2. the solution 1. obtained by step submergence Raschig ring 30 ~ 60 minutes at 10 ~ 50 DEG C of temperature; 3. the Raschig ring that 2. step obtains is put into closed electric furnace, be filled with nitrogen, 100 DEG C are warming up in 20-40 minute, 100 ~ 120 DEG C of temperature range inside holding 1 ~ 2 hour, then 300 DEG C are warming up in 20-40 minute, 300 ~ 400 DEG C of temperature range inside holding 1 ~ 2 hour, be then warming up to 500 DEG C in 20-40 minute, 500 ~ 650 DEG C of temperature range inside holding after 1 ~ 3 hour naturally cooling obtain trapping agent.This trapping agent can use 6-8 month, reclaims platinum metals cost low, can not affect nitric acid production efficiency, and reclaiming the platinum purity obtained can reach 99.96%. |
| priorityDate | 2014-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.