METHOD FOR PRODUCING PHOSPHORIC ORGANO-MINERAL FERTILIZERS

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 lignosulphon...

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Bibliographische Detailangaben
Hauptverfasser:	IVANOVA R.G, GONCHAROV S.G, GLADKOV O.A, IVANOVA N.JA, SOKOLOVA I.V, JUR'EVA V.I, SHCHUPLJAK A.A, BUZULEEV A.B, PETROVA L.A
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY FERTILISERS FERTILISERS CHARACTERISED BY THEIR FORM MANUFACTURE THEREOF METALLURGY MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05 MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE PHOSPHATIC FERTILISERS
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Beschreibung
Zusammenfassung:	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