http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2206554-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1fc9c7a1c6ad5055f5ad9fd25d69ca10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95a8b10bb87678b9b039dcb856bdda5f http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c5c81de7bf95ed6acc2214958b2ce380 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05D9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05D5-00 |
| filingDate | 2002-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00ec03e460952b6c7ef21b71b2659922 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01ebd84493bb5a4e378b3eb1456a1119 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_542a9ee0f96ee93f113cb6f1f384f153 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_338655869f084106372c905cf6f3120c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c20c40f7496fde88600007a12cae361 |
| publicationDate | 2003-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2206554-C1 |
| titleOfInvention | Magnesium fertilizer production process |
| abstract | FIELD: mineral fertilizers. SUBSTANCE: invention is directed to production of fertilizers for agriculture and forestry and consists in treating for 5-6 h initial peridot-containing material with 25-30% sulfuric acid at 75-85 C and solids-to-liquid ratio 1:(2.5-5) in presence of silica seed taken in amount 10-15% of the weight of raw material. Resulting magnesium-containing primary solution is separated from solids by filtration and treated with magnesium-containing neutralizing reagent, in particular dolomite or magnesite fired at 790-810 C, until pH 7 is reached. After filtration separation of precipitated iron hydroxide and calcium carbonate, resulting secondary solution is subjected to additional treatment with neutralizing reagent taken in amounts to ensure molar ratio 1:(1-3) between sulfate and magnesium oxide present, respectively, in primary solution and neutralizing reagent. Thus prepared fertilizer has pH 8.5-9.3 and rather high (to 40.6 wt %) magnesium oxide content. Low-alkaline pH of fertilizer is favorable to lower excessive acidity of lands having been exposed to acid rains. EFFECT: prolonged fertilizing effect and increased availability of fertilizer components for plants. 4 cl, 9 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2664301-C2 |
| priorityDate | 2002-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.