http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104419839-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 |
| filingDate | 2013-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104419839-B |
| titleOfInvention | A kind of method preparing oxalic rare earth precipitates |
| abstract | The invention belongs to rare earth preparation field, particularly relate to a kind of method preparing oxalic rare earth precipitates, the method includes re chloride and the mixing of oxalic acid solution, precipitation, the filtration of precipitation and washing, the collection of washings, vacuumizes except steps such as water.The filtration washing of present invention precipitation is carried out in homemade filter vat, and to washing point multiple stages, after emitting except the water of washing for the first time, the washings in remaining stage all collect the washing giving over to post precipitation, thus it is greatly improved the utilization rate of water resource, reduce the discharge of waste water；Vacuumizing after washing processes the moisture that can effectively remove in precipitation, reduces the volume of rare-earth precipitation, thus can shorten follow-up calcination time, saves the calcination energy, shortens the rare earth oxide production cycle, reduces production cost；The rare earth resources that centrifuge also can be avoided to cause when drying runs off, and improves product yield. |
| priorityDate | 2013-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.