http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110846693-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D3-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D3-22 |
| filingDate | 2019-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110846693-B |
| titleOfInvention | High-dispersity alkaline cyanide-free zinc plating brightener and preparation method and application thereof |
| abstract | The invention discloses a high-dispersity alkaline cyanide-free galvanizing brightener and a preparation method and application thereof, and belongs to the field of surface treatment galvanizing. The preparation method comprises the following steps: and (3) mixing the raw materials in a molar ratio of 1-3: dissolving 1-3 parts of 5-amino-8-hydroxyquinoline and salicylaldehyde in an organic solvent which can be mutually dissolved with water, adding a small amount of paraformaldehyde as a catalyst, heating to 80-90 ℃, and carrying out reflux reaction for 4-5 hours; after the reaction is finished, adding a sodium hydroxide solution, heating to 40-50 ℃, dropwise adding propane sultone, heating to 90-105 ℃ after the addition is finished, and fully reacting to obtain the alkaline cyanide-free zinc plating brightener; wherein the molar ratio of the propane sultone to the 5-amino-8-hydroxyquinoline is 1.0-1.3: 1. The current density range of the plating solution prepared from the brightener prepared by the method is 0.5-11A/dm 2 When the passing current is 2A, the current efficiency is more than or equal to 80 percent, the dispersion capacity reaches about 88 percent, and the method has good application prospect. |
| priorityDate | 2019-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.