Державний Науково-Дослідний Та Проектний Інститут По Збагаченню Та Агломерації Руд Чорних Металів Механобрчормет
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A method of flotation of iron ores includes purification of waste water, preliminary conditioning pulp with a depressor, which contains low-molecular fractions of lignosulphonate with molecular weight less than 5000 and high-molecular fractions of lignosulphonate with molecular weight greater than 5000, and flotation with use of circulating water. For the purpose of reduction of the costs for purification of waste water due to reduction of accumulation of lignosulfonates in the circulating water, ratio of low- and of high-molecular fractions of lignosulfonates in the depressor makes (1: 9) - (1: 19).
UA4119290A1986-09-171986-09-17method of flotation of iron ores
UA13509A1
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