http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8246740-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_72dd25658a2767fe882fbca8e360cdd0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b1962bdeafe58e2f312c308fe511c31 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2982 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B7-424 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B7-00 |
| filingDate | 2011-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44e7be6c44ae8555dd6bc5814d213e88 |
| publicationDate | 2012-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8246740-B2 |
| titleOfInvention | Method and product for varying the thickening time of a class G cement used in completing a subterranean wellbore |
| abstract | Spent Claus catalyst having a high alumina content is used as an ingredient in the manufacture of Portland cements in place of all or a portion of a conventional source of alumina. The spent Claus catalyst is preferably of a small particle size and can be ground to the desired fineness before mixing with the other ingredients that are heated in a conventional kiln to produce the cement composition. Finely ground spent Claus catalyst can also be used as an additive at levels of 0.1% to 2% by weight to increase the thickening time of shallow casing cement slurries. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10301216-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012282470-A1 |
| priorityDate | 2004-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.