http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8440015-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_88a385806d1bdda58f46cf14ab5d5cfd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f357bf6f7e4d050361c3643409d45f30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_00fe57b0e61f75cb0dfcbafe859a5b60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1ee572b0ecb84679e0bcd4bd98f27ddf http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc856724e31df44e4d4d65dff57a4042 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2111-1093 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-91 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B20-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B18-06 |
| filingDate | 2010-06-23^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-05-14^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5c4ecc5de7a95c129d6aec02bf4bcd8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db98931a115d6b88283dfedff9ecf60b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bae637354755bd97f4abaed674a8559 |
| publicationDate | 2013-05-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8440015-B1 |
| titleOfInvention | Fly ash carbon passivation |
| abstract | A thermal method to passivate the carbon and/or other components in fly ash significantly decreases adsorption. The passivated carbon remains in the fly ash. Heating the fly ash to about 500 and 800 degrees C. under inert gas conditions sharply decreases the amount of surfactant adsorbed by the fly ash recovered after thermal treatment despite the fact that the carbon content remains in the fly ash. Using oxygen and inert gas mixtures, the present invention shows that a thermal treatment to about 500 degrees C. also sharply decreases the surfactant adsorption of the recovered fly ash even though most of the carbon remains intact. Also, thermal treatment to about 800 degrees C. under these same oxidative conditions shows a sharp decrease in surfactant adsorption of the recovered fly ash due to the fact that the carbon has been removed. This experiment simulates the various “carbon burnout” methods and is not a claim in this method. The present invention provides a thermal method of deactivating high carbon fly ash toward adsorption of AEAs while retaining the fly ash carbon. The fly ash can be used, for example, as a partial Portland cement replacement in air-entrained concrete, in conductive and other concretes, and for other applications. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8936677-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018103814-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9651497-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016238537-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3854761-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012174825-A1 |
| priorityDate | 2002-01-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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