发明名称 |
METHOD FOR PRODUCING PHOSPHORIC ORGANO-MINERAL FERTILIZERS |
摘要 |
FIELD: agriculture; organic chemistry. SUBSTANCE: phosphate flour or simple superphosphate are mixed with humic substances taken in amount 2-9 wt. -%, followed by drying mixture at 85-105 C. As humic substances, method employs product resulting from oxidative-hydrolytic decomposition of lignosulphonates. The latter are oxidized with air oxygen in alkaline medium, at 150-200 C and under pressure not more 2.5 MPa. Liquid phase is concentrated until its moisture content is brought down to 8-10%, followed by mixing it with mineral component. Method permits to expand range of phosphoric organo-mineral fertilizers and to improve environmental conditions due to using, as humic component, lignosulphonates constituting difficult-to-dispose wastes resulting from operation of pulp--and-paper-making plants. EFFECT: broadened range of phosphoric fertilizers for agriculture; improved environmental conditions. 4 tbl
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申请公布号 |
RU2108996(C1) |
申请公布日期 |
1998.04.20 |
申请号 |
RU19970103006 |
申请日期 |
1997.03.05 |
申请人 |
ZAKRYTOE AKTSIONERNOE OBSHCHESTVO "REHP VODOKANAL" |
发明人 |
SHCHUPLJAK A.A.;SOKOLOVA I.V.;JUR'EVA V.I.;GLADKOV O.A.;IVANOVA N.JA.;IVANOVA R.G.;PETROVA L.A.;BUZULEEV A.B.;GONCHAROV S.G.;SHCHUPLJAK A.A.;SOKOLOVA I.V.;JUR'EVA V.I.;GLADKOV O.A.;IVANOVA N.JA.;IVANOVA R.G.;PETROVA L.A.;BUZULEEV A.B.;GONCHAROV S.G. |
分类号 |
C05F7/02;C05B11/00;C05G1/00;(IPC1-7):C05F7/02 |
主分类号 |
C05F7/02 |
代理机构 |
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代理人 |
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地址 |
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