http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101169066-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-745 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B9-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B7-191 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-762 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B9-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B7-19 |
| filingDate | 2010-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2012-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101169066-B1 |
| titleOfInvention | Method for recycling sodium aluminum tetrafluoride obtained as a by-product in the preparation of monosilane |
| abstract | The present invention relates to a method for producing hydrofluoric anhydride using sodium aluminum fluoride and a reaction apparatus therefor, more specifically, sodium aluminum tetrafluoride (NaAlF 4 , sodium aluminum tetrafluoride) and sulfuric acid as a source of fluoride Was mixed and ground in a pre-reactor to obtain gaseous hydrogen fluoride (HF) and a solid material, and the obtained solid material was heat-treated again in the reactor to give gaseous hydrofluoric anhydride and solid sodium aluminum sulfate (NaAl (SO 4). ) 2, recycle NaAlF 4 manufacturing by-product of monosilane rather than by preparing the anhydrous hydrofluoric acid by a process for obtaining the sodium aluminum sulfate), expensive imported calcium fluoride as a source of fluoride for the production of anhydrous hydrofluoric acid (CaF 2, fluorspar) Hydrogen sulfate, which is not only eco-friendly and economical, By dispersing calcium (Ca (HSO 4 ) 2 ) evenly, the formation of bulky solids is suppressed, and the reaction product is micronized to significantly increase the production yield of HF and to produce a large amount of HF relative to the weight of raw materials. The present invention relates to a method for producing hydrofluoric anhydride capable of industrial mass production and generating NaAl (SO 4 ) 2 , which is a recyclable by-product separated from forget-me-not and aluminum sulfate, and a reaction apparatus therefor. |
| priorityDate | 2010-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.