| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-0011 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C3-0295
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C3-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C3-04 |
| filingDate |
2004-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2006-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92360cf942b3ab9113cfae4e6a31b253
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_624111de7b72536fb1e8b526870099cd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f1d56102430cc448bab2773726cbda4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7718d08f4512fdd7e96ac26daa0f9bdb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8dc6713907940fefad58cb95eb03ac7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67f30ae654bd3d46fa4afbbd49841adf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_717711574cfeba7e06d0fd59b19a3b72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e74c1c4c5f9fafe12dc092f0bcba73a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d234d9bc1af6a79f511fe617024ccf46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52fed5c6f611fe4952ab620581769c43 |
| publicationDate |
2006-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1618068-B1 |
| titleOfInvention |
Method for purifying hydrocyanic acid |
| abstract |
The invention relates to a method for dehydrating hydrocyanic acid by distillation. Said method is characterised in that a crude hydrocyanic acid containing between 50 and 99.9 wt. % HCN, between 0.1 and 40 wt. % water, between 0 and 15 wt. % carbon oxides and optionally between 0.01 and 1 wt. % non-volatile stabiliser is distilled in a distillation column at a pressure of between 1 bar and 2.5 bar, a sump temperature of between 100 °C and 130 °C and a head temperature of between 25 °C and 54 °C in the absence of a volatile stabiliser. A discharge stream, containing purified anhydrous hydrocyanic acid and carbon oxides is thus obtained from the head and a discharge stream containing water and optionally the non-volatile stabiliser is obtained from the sump. |
| priorityDate |
2003-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |