http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3051247-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e844cd7715ec4dfe7e64c8022771fa4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a9c74bb391dc395ce6ceda55a5cdfa34 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F22B37-483 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F28G9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F22B1-023 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F22B37-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F28G9-00 |
| filingDate | 2013-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24204d48e0aaf02632bcc37e6c270a03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5df6feb3189e0188f001ce994d61a4fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6a4d6b03bf9f890020fc6450ab981bc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93e0bc058d1bd913f780c1e0419c4f98 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ff14adbeb94b4990d05bf4cf574eb83 |
| publicationDate | 2016-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3051247-A1 |
| titleOfInvention | Chemical cleaning procedure for heat exchangers |
| abstract | Applicable to exchangers made up of a set of tubes from a primary circuit, these tubes being separated by separation plates, said tubes and said plates being coated in use with deposits adhering to them of materials from erosions, corrosions and impurities in the secondary circuit, these materials particularly being formed of metals and metal oxides such as magnetite and metals such as copper, this procedure comprising a first phase of eliminating the metal oxides and in the event of the cleaning being done on materials containing copper, a second phase for decoppering and eliminating any copper compounds, in which a water solution, containing the following reagents is inserted into the steam generator: Citric acid, 0.5-10% in mass Ascorbic acid 0.3-5% in mass The process is carried out at a temperature of 20°C-70°C And the pH for the process starts at values of from 1 to 4.5 |
| priorityDate | 2013-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.