| 发明名称 |
METHOD OF PRODUCING GRANULATED AMMONIATED SUPERPHOSPHATE |
| 摘要 |
FIELD: mineral fertilizers. SUBSTANCE: granulated ammoniated superphosphate is prepared by decomposing dolomitized phosphate material by sulfuric acid, neutralizing slurry by remaining part of phosphate material, and granulating and drying final product. Method is distinguished by conducting slurry neutralization operation in two steps: first by phosphate material at pH 2-2.5 and then by ammonia-containing regent to pH 2.8-3.5. EFFECT: enhanced process efficiency. 1 tbln
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| 申请公布号 |
RU2107053(C1) |
申请公布日期 |
1998.03.20 |
| 申请号 |
RU19970103027 |
申请日期 |
1997.02.25 |
| 申请人 |
ZAKRYTOE AKTSIONERNOE OBSHCHESTVO "EHKOVITA";AKTSIONERNOE OBSHCHESTVO OTKRYTOGO TIPA "FOSFORIT" |
发明人 |
TREUSHCHENKO N.N.;DMITREVSKIJ B.A.;FILIMONOV A.A.;DREMOV A.V.;JUR'EVA V.I.;KOSTJUZHEVA M.G.;SHVETSOV O.V.;TREUSHCHENKO N.N.;DMITREVSKIJ B.A.;FILIMONOV A.A.;DREMOV A.V.;JUR'EVA V.I.;KOSTJUZHEVA M.G.;SHVETSOV O.V. |
| 分类号 |
C05B1/06;(IPC1-7):C05B1/06 |
主分类号 |
C05B1/06 |
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