http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1544711-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9476ec360f6d706cec1b508fed62a6aa |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-08 |
| filingDate | 1987-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1990-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7499afe6b239c2403d89cde24c0d0fd8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8ad1c00bedd09d08549d8f2fc849635 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c33c5386ecaac66cb735a2c77d396072 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_180272320bc14f89a1128598af40beb3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b533769a75e03cf937516a8bbb03c597 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fab3a0deb0af526fdf71dfde8c5a0465 |
| publicationDate | 1990-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1544711-A1 |
| titleOfInvention | Method of producing kainite |
| abstract | The invention relates to halurgy, in particular, to the technology of complex processing of polymineral potash ores, and can be used to produce chlorine-free potash fertilizers. The purpose of the invention is to increase the yield and improve the dispersion of Cainite. The solution from dissolving polymineral potash ore is evaporated to separate the sodium chloride precipitate, then the solution is re-evaporated until the content of sulfate ions in the solution is 9.5-10.5 wt.%. Leonit is added to the resulting suspension and stirred at 50-70 ° C for 10-60 minutes. 5–15 minutes before the end of the process, a mixed salt containing carnallite and ion exchanger is added to the suspension. Cainite precipitate is separated by filtration as the desired product, and the solution is evaporated to isolate the mixed salt. The output of Cainite is 79.0-82.5 wt.%, Its content in the fraction is less than 0.14 mm 16.0-29.6%. 3 tab. |
| priorityDate | 1987-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.