http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104611691-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-62 |
| filingDate | 2015-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104611691-B |
| titleOfInvention | A kind of organic passivation agent and its application process for carbon steel piping or carbon steel pipe fitting |
| abstract | The invention discloses a kind of organic passivation agent for carbon steel piping or carbon steel pipe fitting, it is prepared from by castor oil acid, water and MEA and/or diethanol amine and/or triethanolamine, to be placed in stainless steel tank after the organic passivation agent demineralized water dilution, the passivator solution in stainless steel tank is heated using the method for forced circulation, then will be immersed in stainless steel tank in solution after a period of time through carbon steel piping that acid pickling and rust removing is processed or carbon steel pipe fitting, you can form organic passivation film in carbon steel piping and carbon steel tube surface.Compared with prior art, the advantage of organic passivation agent of the present invention is environmental protection, without carcinogen natrium nitrosum, can be with safety dumping, good passivation effect after waste liquid is neutralized. |
| priorityDate | 2015-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.