| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7fe4f79e6e519421800233d9dbdfa611 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0086
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-606
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2111-26 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-508
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-0093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E04C5-015 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B22-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B22-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E04C5-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-65 |
| filingDate |
2005-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2006-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ea1ec01edde88434a408ef87a3925b9 |
| publicationDate |
2006-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7074263-B2 |
| titleOfInvention |
Direct sequestration of chloride ions |
| abstract |
The present invention provides methods and compounds for the direct sequestration of chloride ions without requiring the addition of a source of anion such as nitrite or nitrate. A direct sequestration additive is introduced to fresh concrete or hardened concrete where the additive reacts with incoming chloride ions to form a low solubility, chloride-containing compound which captures or sequesters chloride ions. In a preferred embodiment, the chloride-containing compound comprises 3CaO.Fe (2-x) Al x O 3 .CaCl 2 .nH 2 O, where x ranges from about 0 to 1.4, and n ranges from about 8 to 24. The chloride ions may be provided in the form of deicing salt or sea water. Because chloride-containing compounds such as 3CaO.Fe (2-x) Al x O 3 .CaCl 2 .nH 2 O are formed directly without requiring the addition of a source of anion (e.g. nitrite or nitrate), the process is referred to as “direct sequestration.” |
| priorityDate |
2001-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |