发明名称 |
METHOD OF PRODUCING PHOSPHORUS-CONTAINING COMPLEX FERTILIZERS |
摘要 |
FIELD: mineral fertilizers. SUBSTANCE: phosphorus-containing component is mixed with potassium compounds in presence of sulfate ion followed by granulation and drying of product. As potassium compound and sulfate ion source, K<SB>2</SB>Mg(SO<SB>4</SB>)<SB>2</SB> salt is utilized, and process is carried out until phosphorus pentoxide to P<SB>2</SB>O<SB>5</SB> : K<SB>2</SB>Mg(SO<SB>4</SB>)<SB>2</SB> molar ratio 1:(0.76-4.6) is attained. Phosphorus-containing components utilized are phosphorite, superphosphate, or ammonium phosphate. K<SB>2</SB>Mg(SO<SB>4</SB>)<SB>2</SB> sources are K<SB>2</SB>Mg(SO<SB>4</SB>)<SB>2</SB>-fertilizer, schoenite, or polyhalite. Sulfuric acid may also be admixed. All amount of K<SB>2</SB>Mg(SO<SB>4</SB>)<SB>2</SB> is used in mixing stage or 5-10% of it is added in granulation stage in the form of solution. In the latter case, temperature of granulation is 70-90 C and ammonium nitrate melt or solution is additionally added. EFFECT: enhanced process efficiency. 5 clw
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申请公布号 |
RU2106329(C1) |
申请公布日期 |
1998.03.10 |
申请号 |
RU19960111396 |
申请日期 |
1996.06.05 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "NIUIF" |
发明人 |
KLASSEN PETR VLADIMIROVICH;ZAVERTJAEVA TAMARA IVANOVNA;GOLUBOV ALEKSEJ GRIGOR'EVICH;GAVRILJUK LEONTIJ MIKHAJLOVICH;CHEPURENKO VIKTOR POLIKARPOVICH;OVCHARUK NIKOLAJ AKIMOVICH;KLASSEN PETR VLADIMIROVICH;ZAVERTJAEVA TAMARA IVANOVNA;GOLUBOV ALEKSEJ GRIGOR'EVICH;GAVRILJUK LEONTIJ MIKHAJLOVICH;CHEPURENKO VIKTOR POLIKARPOVICH;OVCHARUK NIKOLAJ AKIMOVICH |
分类号 |
C05G1/06;(IPC1-7):C05G1/06 |
主分类号 |
C05G1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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