http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104368316-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2220-4825 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3085 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-24 |
| filingDate | 2014-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104368316-B |
| titleOfInvention | A kind of hydrosulfide group cellulose class stalk adsorbent and preparation method and the recovery to noble silver |
| abstract | The present invention discloses a kind of hydrosulfide group cellulose class stalk adsorbent, and preparation method is as follows: after 1) getting stalk washing, at 50 DEG C, be dried, add the concentrated sulfuric acid, heat, after stirring, filter, be washed till neutrality, filtration is again dried and obtains product A after 24 hours at 60 DEG C; Get ammoniacal liquor, epoxychloropropane reacts 4h at 60 DEG C in reaction vessel I, then A is incorporated in reaction vessel, then adds NaOH, 110 DEG C of reaction 8h, reacts rear filtration and have been washed till neutrality, oven dry obtains product B at 55 DEG C; 2) get thiosemicarbazides and be dissolved in reaction vessel II, add B and glutaraldehyde, 90 DEG C of reaction 5h, filter, and washing, dries and obtain target product at 55 DEG C. This preparation method is simple, pollution-free, and cost is low, and the stalk adsorbent separation and concentration efficiency of preparing is high, can be from high concentration copper nickel solution separation and concentration trace silver, energy free consumption, energy-conserving and environment-protective, widely applicable, there is practical application. |
| priorityDate | 2014-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.