http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0582121-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b502fde933db1d6126d10bbcbddb83ea |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23G1-086 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-06 |
| filingDate | 1993-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2000-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7df0c76c2c46a911e3b94cdd4cd3cdf5 |
| publicationDate | 2000-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0582121-B1 |
| titleOfInvention | Process for stainless steel pickling and passivation without using nitric acid |
| abstract | Process for stainless steel pickling consisting in placing the material to be treated in a bath kept at a temperature ranging from 30 DEG C to 70 DEG C having the following initial composition: a) H2SO4 150 g/l at least b) Fe<3><+> 15 g/l at least c) HF 40 g/l at least d) H2O2 (added with known stabilizers) 1-20 g/l e) emulsifiers, wetting agents, polishing agents, acid attack inhibitors; in the bath being fed continuously: an air flow equal at least to 3 m<3>/h per m<3> bath min. and a stabilized H2O2 quantity adjusted to the bath redox potential to be kept at >/=250 mV. l |
| priorityDate | 1992-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.