| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9ce3b0040114d593779a41d6bb5a4be6 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-62 |
| filingDate |
2012-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_283a9f56167102444d6bc65908f6ce1d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52e85bdc0c8a502f4b79925af2f6e653
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29e18d42382973e065334dd85cec5591
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e9acc8af60468f8733f38e92b90d7d6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f8f6829dfef1c31818eb88d9cd68867
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15c4709f5c84d7991316d22abd0e9ac9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2c2e1f440ea542ceb537ac04cd275da |
| publicationDate |
2013-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2491232-C1 |
| titleOfInvention |
Method of recycling spent solutions containing hexavalent chromium compounds |
| abstract |
FIELD: chemistry. n SUBSTANCE: invention can be used in mutual treatment of spent solutions from factories having chromium-containing waste water and waste water containing antibiotic production wastes. The method is carried out by adding sulphuric acid to chromium-containing spent solutions in a process vessel to pH 1-2, the reducing Cr(VI) to Cr(III) using waste water contaminated with antibiotic production wastes which contain butyl acetate and off-grade drugs - antibiotics ampicillin, oxacillin, cefazolin. The reduction process is carried out at temperature not below 30°C and not higher than 60°C with reactant reaction time of at least 10 minutes. Complete reduction is checked with a potentiometer method. n EFFECT: method reduces concentration of hexavalent chromium in spent solutions to maximum allowable concentration values or lower when recycling large amounts of waste water. n 2 dwg, 1 tbl |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2557608-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2658032-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2572136-C1 |
| priorityDate |
2012-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |