http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105084407-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0212fb4e5148f25e8df4787ee31ee91f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-00 |
| filingDate | 2014-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a255c59164bebeafe8cae82cb4e6cd68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc512e3865002555c07180553a46cf95 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2d2a88229bc1cfd0c6467f17ad2a9e6 |
| publicationDate | 2015-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105084407-A |
| titleOfInvention | Ultrafine lanthanum oxide and preparation method thereof |
| abstract | The invention belongs to the field of preparation of rare earth materials, and especially relates to an ultrafine lanthanum oxide and a preparation method thereof. The preparation method of the ultrafine lanthanum oxide comprises the following steps: 1, preparing a lanthanum salt solution A; 2, preparing an anionic surfactant solution B, and adding the solution B to the solution A to obtain a solution C; 3, preparing an oxalic acid solution, pouring the oxalic acid solution into a reaction container, adding the solution C to the oxalic acid solution in a dropwise manner while continuously stirring, and reacting the solution C with the oxalic acid solution to generate lanthanum oxalate precipitate; and 4, carrying out pumping filtration on the generated precipitate, washing with water, drying, calcining to obtain crude lanthanum oxide, crushing the crude lanthanum oxide, and sieving to obtain the ultrafine lanthanum oxide with uniformly distributed granularity. The preparation method of the ultrafine lanthanum oxide is simple, allows rare earth lanthanum oxide with small granularity and uniform particle distribution to be directly obtained through an oxalate precipitation technology, and can avoid particle fragmentation caused by a physical technology, and the ultrafine lanthanum oxide can be directly used in magnetic materials. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108285166-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108862359-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108069454-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109019655-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111115675-A |
| priorityDate | 2014-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.