http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2312820-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d5c3e40b55effcb0d47f033d93d0ff65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ad6be06a97bf46c67c46a9710b2b841f http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_10b00daacbb8cc2a6dd7644411b28790 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eaa50c2feda32620e0381dcd5c296aa4 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G28-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-62 |
| filingDate | 2006-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2007-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef99b44ab3e603cbd51008c9346f6247 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e1e386988f9e7d97452d1e954a22ee0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a36198aa52a59420fb1ef31bb7c9277b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f072bfdbd52ccb3e9ca54129a880e800 |
| publicationDate | 2007-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2312820-C1 |
| titleOfInvention | Method of cleaning arsenic-polluted solvents |
| abstract | FIELD: waste water treatment. n SUBSTANCE: invention relates to treatment of waste waters and solvents containing significant amounts of hydrochloric or sulfuric acid and arsenic and can be used in metallurgy, especially in manufacture of nonferrous metals, as well as in chemical industry. Method consists in that arsenic is precipitated by sulfide-containing reagent, e.g. sodium hydrosulfide, said sulfide-containing reagent being added to solution to be treated from below while simultaneously stirring the solution. Specific weight consumption of the reagent is not higher than 1.5 kg*S -2 *h -1 . Hydrodynamic regime of stirring is maintained within the Reynolds number range 600 to 6000. Precipitation of arsenic is effected until its residual concentration in solution not below 0.03 g/dm 3 . Addition of sulfide-containing reagent is stopped when redox potential value is achieved in the curve break point on diagram depicting consumption of the reagent as function of arsenic concentration in solution. n EFFECT: achieved simplicity and safety of arsenic precipitation excluding emission of toxic gases. n 1 dwg, 3 tbl |
| priorityDate | 2006-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.