FIELD: chemical industry. SUBSTANCE: method involves providing double-staged acid finishing of natural molybdenum and special washing and drying mode procedures. Double-staged acid finishing is followed with removal of flotation concentrate through washing-off process with soda and water and with washing-off stage using saturated oil-in-alcohol solution, with molybdenite : solution ratio being equal to 1:0.2-1. Drying procedure is conducted at temperature above water boiling temperature (101 C), but below boiling temperature of low-boiling fraction of used mineral oil, that is, 145 C. Method allows drying process to be intensified without oxidation of basic substance of molybdenite. EFFECT: increased efficiency and improved quality of oil suspensions. 1 tbl, 1 ex
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Authors
Dates
2003-03-10—Published
2000-06-13—Filed