| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c912d9798106c3f3c6c82301f1aa1b0a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2303-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2305-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-683
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-023 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D11-0029
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D3-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01K13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F28G9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F5-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23G1-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F14-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D7-3209 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F14-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F28G9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F5-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-18 |
| filingDate |
2010-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88507ec0e952c46836bab46a53f865f2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0db6e4cb57343c3314c4aaddc4bd0ba2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f80e1a8c857a1dc3f103b9c9882b1ad |
| publicationDate |
2019-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
ES-2711924-T3 |
| titleOfInvention |
Process and composition to remove scale deposits formed on a metal surface within a steam generating system |
| abstract |
A process for conditioning and removing deposits, which includes mixtures of inorganic compounds sequentially comprising the steps of: a) taking a heat exchange system of a nuclear power plant out of service, including the heat exchange system a steam generator having lime therein comprising anhydrous and / or hydrous oxide deposits and / or aluminum and / or silicon hydroxides; b) introducing into the steam generator an aqueous cleaning solution comprising a treatment concentration of a quaternary ammonium hydroxide, in which a pH at room temperature of the aqueous cleaning solution is at least 7; c) dissolving the anhydrous and / or hydrous oxide deposits and / or aluminum and / or silicon hydroxides through a chemical reaction between the quaternary ammonium hydroxide and the tanks by contacting the tanks with the aqueous cleaning solution during a treatment period; d) maintaining the aqueous cleaning solution within a range of treatment temperature during the treatment period; e) removing the dissolved deposits and substantially all of the aqueous cleaning solution from the steam generator after the treatment period; and f) restore the heat exchange system to its operating state. |
| priorityDate |
2010-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |