| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1a34d7d2e0d09a58cb7bf4a04c81162e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-125
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-206
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C19-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-08 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-18 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-125 |
| filingDate |
2005-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2012-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ebeeb0e4048ce2bbb530160d15f3189c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8690346ddac3cc610b9fb39d2a5df86a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03b1636102f6127ab1d18593ce5b0a36 |
| publicationDate |
2012-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
ES-2386898-T3 |
| titleOfInvention |
Method for manufacturing difluoromethane |
| abstract |
A process for the production of difluoromethane (HFC-32), the process comprising: (a) providing a reaction vessel; (b) providing activated carbon impregnated with a strong Lewis acid fluorination catalyst in which the strong Lewis acid catalyst is selected from the Sb halides in the reaction vessel; (c) activating the catalyst by passing through the activated carbon impregnated with the strong Lewis acid fluorination catalyst, anhydrous hydrogen fluoride gas and chlorine gas; (d) contacting, in a vapor state in the reaction vessel containing the activated catalyst, hydrogen fluoride and dichloromethane at a temperature in the range of 60 ° C to 200 ° C to produce a product stream comprising difluoromethane (HFC-32) and one or more of hydrogen chloride, unreacted chlorinated hydrocarbon reactant (s), low fluorinated intermediates and unreacted hydrogen fluoride and (e ) separate difluoromethane (HFC-32) from the product stream. |
| priorityDate |
2004-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |