http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2170276-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_87e827344ba2abe7f190a2ef3a7d4d58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ed5f911a67e9b67a5b3f44a876338f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 |
| filingDate | 2000-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20c4142363936a65c215a8f5daf33e97 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c65d1603f76e1d1b88f11bba0c6f959 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0fb35f3fe1549103ea4d6e2c8f966134 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2029c828fb32d7d63901478cc38fbc36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c20de9db82b05792afc168d3610165ce |
| publicationDate | 2001-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2170276-C1 |
| titleOfInvention | Method of rewoking electroplating process sludges |
| abstract | FIELD: reworking domestic and industrial wastes; extraction of metals from sludges of electroplating process. SUBSTANCE: proposed method includes leaching heavy metals by 5- to 15-% sulfuric acid, separation of solid phase from solution, separation of ferric hydroxide (III) and chromic hydroxide (III), hydroxide of copper and other heavy metals; leaching of heavy metals is effected by stepped counter-flow method in cassettes vibrating in vertical plane; cassettes are provided with filtering partitions; method includes also separation of copper, treatment of solution in oxidizing reactor for conversion of iron to trivalent state, passing the solution through cathode spaces of electrolyzers at intermediate separation hydroxides of metals after each stage of cascade, regeneration of sulfuric acid; leaching solution is passed in reverse order through anode spaces of all electrolyzers at subsequent concentration in low-temperature evaporator; sulfuric acid thus obtained is used at leaching stage and condensed vapors are directed for flushing procedures. EFFECT: enhanced efficiency of separation of all precious components; enhanced ecological safety and economical efficiency. 1 dwg, 3 tbl, 1 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112853101-A |
| priorityDate | 2000-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.