METHOD FOR PRODUCTION OF FERTILIZERS AND LAND-IMPROVEMENT AGENTS FROM METALLURGICAL SLAG Russian patent published in 2002 - IPC

Abstract RU 2195440 C1

FIELD: agriculture land improvement. SUBSTANCE: initial slag is crushed, fried of metal inclusions, and sized on screens. Screened fraction 0-5 (0-10) mm is subjected to pneumatic classification at air flow velocity 12-18 m/s and concentration of screened fraction in pneumoclassifier 4-10 kg/cu. m. Loose organic and inorganic materials (manure, peat, dung, superphosphate, urea, etc. ) are used as additives. EFFECT: reduced expenses, improved quality, and widened assortment of metallurgical slag-based fertilizers and land-improvement agents. 4 cl, 1 dwg, 3 tbl

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RU 2 195 440 C1

Authors

Demin B.L.

Sorokin Ju.V.

Golov G.V.

Sitnikov S.M.

Dates

2002-12-27—Published

2001-08-08—Filed