http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-226900-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8c96e1b5833e0a96da8d0d926d9f3eb |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-86 |
| filingDate | 1984-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17155104fa9a9c7045940b769a2c9bcd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b81077b1d0f18d4939b4fb5caef40255 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59a9e633c9cbf15e90707276e2491bd6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5fd3fcc87533e1602b96e7f3e99518a4 |
| publicationDate | 1985-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-226900-A1 |
| titleOfInvention | METHOD FOR THE PRODUCTION OF RARE-DOXIDE-HALOGENIDES AND RARE-DODGE-HALOGENIDE-LUMINOUS SUBSTANCES |
| abstract | The invention relates to a process for the preparation of rare earth oxide halides and rare earth oxide halide phosphors. The aim and object is to provide a process for the preparation of well-crystallized rare earth oxide halides, in particular of corresponding high-efficiency rare earth oxide halide phosphors and favorable physical-chemical properties adapted to the respective application. This is achieved by carrying out the reaction of one or more rare earth oxides or a mixed oxide or one or more rare earth oxalates or a mixed oxalate in the temperature range from 650 to 1400 K with solid ammonium bromide or in an ammonium halide-containing atmosphere. Subsequently, a recrystallization of the resulting rare earth oxide halides or of the rare earth oxide halide fluorescent materials took place at temperatures of from 1055 to 1500 K in the presence of rare earth trihalide painkillers. After completion of the recrystallization, the required rare earth trihalide fluxes are removed or converted to rare earth halide phosphors. |
| priorityDate | 1984-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 79.