| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b051f9f7933c758e66f6ceda5c9fb2cc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2253-308
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2259-40086
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2256-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2253-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02C20-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-151
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S95-902
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-2066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-2047 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-389
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-38 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-389
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C21-20 |
| filingDate |
2003-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2006-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98994567599570c209b47dc8dd955695
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c953e5035a442c6ecae64c48337409b |
| publicationDate |
2006-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1329442-B1 |
| titleOfInvention |
Purification of hexafluoro-1,3-butadiene |
| abstract |
An HFBD purification process includes: (a) contacting a composition containing HFBD with an adsorbent to remove from the HFBD at least two impurities selected from the group consisting of water, an alcohol, hydrofluoric acid and a fluorinated olefin, wherein the adsorbent is a solid having an average pore diameter of about 5Å and the adsorbent is contacted with the HFBD at a rate of at least 2.7 kg of the HFBD per hour; and (b) recovering from the adsorbent a purified HFBD product containing at least 99.9 vol.% HFBD, a reduced amount of the impurities and less than 0.1 vol.% hexafluoro-2-butyne. Alternatively, the process can be conducted at any contacting rate to produce 99.96 vol.% HFBD. The process can also be conducted at any contacting rate in a bed within a column having a length of at least 30 cm and an inner diameter of at least 2.5 cm. |
| priorityDate |
2002-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |