http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-256119-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b1a8c1642aeb028cc131abb7c9d20817 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05C13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-38 |
| filingDate | 1985-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14d59182bc4540c75e750e37cf11d32b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_665bda72f686b8754317194669e2796b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33909e428217da6dd7aea989cab7b7ba |
| publicationDate | 1988-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-256119-A1 |
| titleOfInvention | METHOD FOR OBTAINING STRONTIUM NITRATE, RARE CONCENTRATE AND NITROGEN DEVICES |
| abstract | The invention relates to the recovery of strontium and rare earth from phosphorus furnace slag with simultaneous production of Stickstoffduengemitteln. The aim and object of the invention is to propose a technically feasible method which allows a largely complex extraction of the contents of the phosphorus furnace slag and the complete processing of the nitric acid used for the decomposition of the phosphorus furnace slag to high-grade Stickstoffduengemitteln. According to the invention, rare earth concentrates are precipitated by neutralization from the nitric acid filtrates obtained in the digestion of the phosphorus furnace slag and separated by filtration. The resulting filtrates are concentrated to densities of 1.50 to 1.66 g / cm3 and strontium nitrate is crystallized by cooling to 30C. The calcium nitrate solution obtained after separation of the strontium nitrate crystals is reacted with the addition of ammonia, ammonium nitrate and / or urea to form nitrogen liquid fertilizers. |
| priorityDate | 1985-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.