METHOD FOR DUST DEPRESSION OF FINELY GROUND FLOTATION POTASSIUM CHLORIDE Russian patent published in 1997 - IPC

Abstract RU 2095387 C1

FIELD: production of potassium fertilizers having improved physical and mechanical properties. SUBSTANCE: flotation potassium chloride is simultaneously treated by hydrocarbon which comprises 0.5-2.0 weight % of naphthenic acids and by aqueous alkaline solution. Mineral oil in which 0.5-2.0 weight % of naphthenic acids are added or affected by removement grease vacuum gas oil are added being used as mentioned above hydrocarbon. Solution of sodium hydroxide, or potassium hydroxide or solution of calcined soda are used as mentioned above alkaline solution, its expense being not less 0.1 kg/t. EFFECT: improved physical and mechanical properties of fertilizer. 4 cl, 1 tbl

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RU 2 095 387 C1

Authors

Skvirskij L.Ja.

Sabirov R.Kh.

Chernov V.S.

Kozel Z.L.

Dates

1997-11-10—Published

1995-04-14—Filed