http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CS-268266-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_12f2e1084d60033ccd8ccfc47f837ad1 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-00 |
| filingDate | 1987-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a630ac291e6a69afbc375fdb835b1ece |
| publicationDate | 1990-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CS-268266-B1 |
| titleOfInvention | A method for removing calcium and magnesium salts from ammoniacal leachates |
| abstract | In the production of nickel iron-nickelnores by the reductive-ammoniacal methodncalcium and magnesium are also leached to a small extent.nWhen leaching ore with ammonianleachates gradually become saturated with leachatesncalcium and magnesium saltsnof them fall out in the form of encrustationsnhydrated calcium magnesium ammonium carbonates.nIncrustations formednreduce filter lifenfabrics, piping and othersnequipment. The goal of the solution is to avoidncreating encrustations either at all ornit is substantially reduced by having a clear leachatenafter aeration, it is cooled downstreamncooler - heat exchanger to temperaturen5 to 30 ° C, inoculant is addednin amounts of 5 to 50 gnin the form of a concentrated suspension with concentrationnover 200 g.l ”of inoculum of sizen100 t below 100 micrometres anthe resulting suspension was stirred for 0.25nup to 1 hour. In doing so, it precipitates out of the leachaten70 to 80% calcium and 50 to 70 »nof magnesium. From the resulting suspension in a hydroseparatornremoves the coarsest sharenthe inoculant from which the sludge columnnboils ammonia. Concentrated finesnfrom a hydrocyclone together with a filter cakenthe finest proportions of inoculantnthey are then used from the effluent of the hydrocyclonenfor new precipitation. Plum filtrate from hydrocyclonenis then processed by a friendnto a basic nickel carbonatenand electrolytic or sinterednnickel. |
| priorityDate | 1987-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.