| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c448b43463d759675b693eac90cf6687 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G37-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 |
| filingDate |
1989-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ea95668d2b3d49ce66179603aa9efca
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f8d3f7640de9e5cbdcecfbea0d068f6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c92454441aeb9cd0d06406759627c7a |
| publicationDate |
1991-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5007960-A |
| titleOfInvention |
Method for removing chromium from chromium containing waste material |
| abstract |
A method is provided for removing chromium from a chromium containing waste material wherein the waste material is dried by indirect heating, sized to a particle size of less than 0.105 mm, mixed with alkaline and oxidizing reactants, and reacted in a reaction vessel by indirect heating using approximately the stoichiometric oxygen requirement to form a reaction material containing water soluble chromates. The reaction material is cooled and resized, and then subjected to an aqueous solvent extraction to produce a solid phase containing substantially no chromium and an aqueous phase containing water soluble chromates. This aqueous phase is subjected to evaporation resulting in a concentrated chromate phase. The waste material has been rendered non-hazardous and the chromium has been recovered as useful chromates. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6607474-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102173455-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I496894-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102173455-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8177882-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010278686-A1 |
| priorityDate |
1989-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |