http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111349920-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-78 |
| filingDate | 2020-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111349920-B |
| titleOfInvention | Environment-friendly phosphating solution containing rare earth composite accelerator and using method |
| abstract | The invention discloses an environment-friendly phosphating solution containing rare earth composite accelerator and a use method thereof, wherein each 1 liter of the environment-friendly phosphating solution is prepared from the following raw materials: 40-55 g/L zinc dihydrogen phosphate, 20-35 g/L margarite, 50-80 g/L zinc nitrate, 2-6 g/L citric acid, 0.02-0.1 g/L ceric sulfate, 1.0-3.0 g/L hydroxylamine sulfate, 1.0-5.0 g/L sodium pyrophosphate and the balance of water. The phosphating solution prepared by the invention has a simple formula, contains a novel composite accelerator mainly comprising rare earth compounds ceric sulfate, hydroxylamine sulfate and sodium pyrophosphate, has the advantages of high film forming speed, less sediment, compact phosphating film, high corrosion resistance and the like, can be used within the temperature range of 10-50 ℃, does not contain nitrite, heavy metal ions and other components, and meets the requirement of environmental protection; the test time of the obtained phosphating film for resisting copper sulfate drops can reach 316s, and the film weight is 3.9-5.2 g/m 2 。 |
| priorityDate | 2020-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.