| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3492a7406879265b1f567f37d98dbbaf |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2215-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G25-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-14 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-58 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J41-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G25-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G27-00 |
| filingDate |
1998-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ef411a4ff9132bb74605680c0e68e67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c5ebae1256255d83be87e79922e89e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_feb6b8465719271db17c1b334a22c4ce
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c980364828c47d6e91d3804ccad291b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_343851e52bed006a429c74da9bd8a473
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_63749f4564e6cdc5b5208220304a424e |
| publicationDate |
1999-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2224090-A1 |
| titleOfInvention |
Zirconium and hafnium separation in sulfate solutions using continuous ion exchange chromatography |
| abstract |
A method and system for improved continuous ion exchange chromatographic elemental separations of zirconium and hafnium and also for isotopic separations thereof from crude zirconium minerals by using zirconium (also containing hafnium) sulfate feedstock solutions, sulfate eluant solutions, anionic exchange resins, and reduced ion exchange column operating temperatures. The method and system of the invention provides sulfate feedstock solutions by completely converting the carbochlorination products of zircon sand to sulfate solutions prior to feeding to the ion exchange chromatographic column. The method and system of the invention is performed in a continuously operating continuous annular chromatograph (CAC). Nuclear grade substantially purified zirconium and hafnium metals are produced. |
| priorityDate |
1995-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |