| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8f48f41f1eecc9119c9a87a241502343 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G25-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G27-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G25-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C3-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G27-04 |
| filingDate |
1989-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d692276cca2818ae6a067d05437777e2 |
| publicationDate |
1990-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0386174-A1 |
| titleOfInvention |
Ultra high purity halides and their preparation |
| abstract |
The process for purifying a chloro, bromo or iodo zirconium, hafnium or aluminum precursor salt consists in using a molten thermal body (10) of one or more alkali or alkaline earth metal halides and the precursor salt containing impurities, to maintain the body at a temperature sufficient to volatilize the precursor salt (16) by moving it away from its impurities while carrying out a reduction in the body by means of a fluid, mobile reducing agent (11) which is non reducing agent for the precursor salt, and isolating the purified volatilized precursor salt from the body. The isolated, ultra-purified volatilized precursor salt can then react (20) with a fluorinating agent to produce the highly purified fluoride used in fiber optic or other quality glass. |
| priorityDate |
1988-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |