http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110919024-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f773f1e8b41cacb60673efbf901c776f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F9-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-24 |
| filingDate | 2019-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d9f5e9daf72384ba511955667367dd3 |
| publicationDate | 2020-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110919024-A |
| titleOfInvention | Preparation method of high-purity superfine nickel powder |
| abstract | The invention provides a preparation method of high-purity superfine nickel powder, which comprises the following steps: s1, taking part of the divalent nickel salt solution, adding a strong oxidant to prepare Ni (OH)3 precipitate; s2, adding the Ni (OH)3 precipitate into the divalent nickel salt, removing impurities, adding a dispersing agent, and uniformly stirring to obtain a solution A; s3, dropwise adding a hydrazine hydrate solution into the solution A, stirring in the dropwise adding process, and adding a NaOH solution to adjust the pH value of the reaction solution to 11-13; s4, reacting for 2-2.5 hours after the dropwise adding is finished, and performing centrifugal separation on the reacted solution to obtain a precipitate; s5, repeatedly washing the nickel powder by deionized water and absolute ethyl alcohol for 3 to 4 times, and drying the nickel powder at the temperature of between 60 and 65 ℃ to obtain the superfine nickel powder. The preparation method of the high-purity superfine nickel powder can improve the purity of the superfine nickel powder. |
| priorityDate | 2019-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.