| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cd7cf0ff880b0231c8baa61cc8d42409 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-18 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C3-12 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C3-12 |
| filingDate |
1977-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3b05bb0528c488fb01a56cd2b8ce817
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_125505da270d6f774048f6007c272af6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8fcf10f6b1e058f5416e74d6e09ea155
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32312030fc5d8209a03d1dcac81bcb16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_294fe804e4c7008562db3a6f6123b3c5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5cdf11cf031d4abe3d555b0d82074d34 |
| publicationDate |
1980-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1089573-A |
| titleOfInvention |
Method for treating waste water containing cyanide ion |
| abstract |
ABSTRACT OF THE DISCLOSURE A method for treating a waste water containing cyanide ions, which comprises (1) adding a ferrous salt to the waste water to convert the cyanide ions in it to a precipitate of ferrous ferrocyanide and insoluble Turnbull's blue, (2) adding an alkali agent to the waste water to convert the remaining ferrous ion to Fe(OH)2, and (3) adding a ferric salt to this waste water to precipitate [Fe(CN)6]4- formed by addition of the alkali agent as insoluble Berlin blue. The method permits a very efficient removal of the cyanide ions from the cyanide ion-containing waste water. It is particularly suitable for the treatment of gas liquor which has been discharged from the step of quenching coke oven gas and treated with activated carbon and activated sludge. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112863611-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112863611-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110627258-A |
| priorityDate |
1977-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |