http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5443196-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2baf849d216e689ecc40ccc931a7a7bc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F11-181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F11-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B22-08 |
| filingDate | 1977-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c928bbf77a8cf961d2dfe8037a58ec98 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_524bc4e3554fb669d34146b505996c70 |
| publicationDate | 1979-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5443196-A |
| titleOfInvention | Prduction of aqueous solution of calcium nitrite |
| abstract | PURPOSE: To efficiently produce a high purity, high concn. aq. soln. of calcium nitrite by bringing a gas contg. low concn, nitrogen oxides into contact with a low concn. slurry of slaked lime contg. calcium nitrite to allow the gas to be absorbed. n CONSTITUTION: A gas contg. 5W10vol% of nitrogen oxides in the molar ratio of NO/NO 2 =1.2W1.5 is brought into contact with a 20W40% slurry of slaked lime at 40W70°C to allow the gas to be absorbed until the concn. of residual slaked lime becomes 5W10wt%. The unabsorbed residual nitrogen oxides-contg. gas is then taken out and NO in the gas is oxidized to regulate the molar ratio of NO/NO 2 to 1.2W1.5 and the concn. of nitrogen oxides to 1W3vol%. The regulated gas is brought into contact with the above slurry to allow the gas to be absorbed at 40W70°C until the concn. of residual calcium hydroxide becomes less than 3wt%. The resulting high concn. aq. soln. of calcium nitrite is filtered to remove a little slaked lime and insol. impurities in the raw material. n COPYRIGHT: (C)1979,JPO&Japio |
| priorityDate | 1977-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.