| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2239613d369ff84434b4dfd8da44a63a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S423-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J47-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-285
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-3956
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-42 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-395
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25C1-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J47-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-04 |
| filingDate |
1977-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13e9a666dd3873b08b52f4fd4d8aca01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e6617def676a87c39d5314d59b1512d |
| publicationDate |
1979-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4137290-A |
| titleOfInvention |
Method and apparatus for recovery of heavy metal ions from dilute aqueous solution |
| abstract |
Heavy metal ions are recovered from a dilute aqueous solution by flowing the solution through either a single bed of ion-absorbing material in successive forward and reverse directions, or through a first bed of ion-absorbing material and thereafter through a second bed of ion-absorbing material in the reverse direction of flow. The reversal of flow is to periodically mechanically agitate a bed of ion-absorbing material to dislodge contaminants, such as gelatin. n The method is accomplished by using one enclosed vessel, or a pair of enclosed vessels, that have valves to control the direction of flow. A timing device preferably automatically reverses the direction of flow about each hour. n After a relatively large number of reversals of flow the heavy metal ions are recovered from the ion-absorbing material and the same is regenerated in the process to again absorb ions from the dilute aqueous solution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4863612-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5622631-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4423008-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4457495-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2848474-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2401229-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4292205-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4575154-A |
| priorityDate |
1977-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |