| 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/C01C3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C3-0295 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C3-02 |
| filingDate |
2004-04-15^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67f30ae654bd3d46fa4afbbd49841adf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32a8b1870600deb1dcb7bcb5f1153cdc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52fed5c6f611fe4952ab620581769c43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92360cf942b3ab9113cfae4e6a31b253
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e74c1c4c5f9fafe12dc092f0bcba73a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7718d08f4512fdd7e96ac26daa0f9bdb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d234d9bc1af6a79f511fe617024ccf46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_717711574cfeba7e06d0fd59b19a3b72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8dc6713907940fefad58cb95eb03ac7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f1d56102430cc448bab2773726cbda4 |
| publicationDate |
2005-12-23^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20050120801-A |
| titleOfInvention |
Method for purifying hydrocyanic acid |
| abstract |
The present invention relates to a method for dehydrating hydrocyanic acid by fractional distillation. The process comprises 50 to 99.9% by weight of HCN, 0.1 to 40% by weight of water, 0 to 15% by weight of carbon at 1-25 bar at 100-130 ° C. bottom temperature and 25-54 ° C. top temperature without volatile stabilizer. Crude hydrocyanic acid is characterized by containing an oxide and optionally 0.01 to 1% by weight of a nonvolatile stabilizer. A discharge stream comprising purified anhydrous hydrogen cyanide and carbon oxides is obtained from the top and a bottom discharge stream comprising water and any nonvolatile stabilizers is obtained from the sump. |
| priorityDate |
2003-04-17^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |