Горный институт Кольского научного центра РАН, Апатиты, РФ

Митрофанова Г. В., ведущий научный сотрудник, канд. техн. наук, g.mitrofanova@ksc.ru

Опалев А. С., ведущий научный сотрудник, канд. техн. наук, a.opalev@ksc.ru

На примере магнетитовых концентратов, полученных из руды одного из месторождений Арктической зоны Северо-Запада России, рассмотрена возможность повышения их качества флотационным способом. Основная масса исследуемых проб концентратов представляла собой материал крупностью 92–93 % класса –0,05 мм. Определены оптимальные условия сульфидной и силикатной флотации. Показано, что большая эффективность сульфидной флотации с использованием ксантогената в качестве собирателя проявляется при естественном значении рН, без добавления регуляторов среды. Более высокое извлечение силикатов наблюдается при проведении флотации катионными собирателями при рН = 9,4–10,0.

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