http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2475453-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d92bf6277cba862eca9019142f4cf62c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05C5-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05C1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05D3-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05C5-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-38 |
| filingDate | 2008-07-09^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-02-20^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77584b0504af0735e255a9c41d9acd83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a97e7584cf84109325b72e664da45e37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8193e5fdd65ae63ec46e047522217bf1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b5c7aaa5b31b5c89c349b90647ba626 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b57c09be619251ccc14fcfbf7daa1de http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b288e8ca5cc87a34d982b18029f7d291 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb7c7a8fd0fb3f1a922720ca3c89e122 |
| publicationDate | 2013-02-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2475453-C2 |
| titleOfInvention | Method of producing granular industrial nitrogen-calcium fertiliser |
| abstract | FIELD: chemistry. n SUBSTANCE: invention can be used in chemical industry. A reaction mixture obtained from decomposition of calcium mineral salts with nitric acid is exposed to an alkaline reagent with pH from 6 to 10 and at temperature of 50°C to 120°C. Undesirable cations are precipitated and separated; in the obtained solution, the ratio Ca 2+ :NH 4 + is adjusted to 4.5 to 9.4 by adding nitric acid and gaseous and/or liquid ammonia and/or ammonium nitrate. The obtained solution is thickened. Superheated solution at temperature from 100°C to 170°C is injected into a granulator. A powder phase is added. The solution is granulated at temperature from 40°C to 135°C and temperature of the obtained granulate is brought to a value not higher than 110°C. The granular material is sieved. The suitable fraction of the granular fertiliser is separated. The coarse fraction is ground and, along with the finer fraction, is cooled and returned into the granulator. n EFFECT: present invention enables to obtain granular fertiliser containing water-soluble calcium and nitrogen salts, which is suitable for droplet irrigation and hydroponics. n 14 cl, 3 tbl |
| priorityDate | 2007-07-09^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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