Mineral flotation collecting agent for oxidized ores

Abstract

The invention provides a collecting agent for collecting minerals of oxidized ores such as ilmenite and a preparation method thereof, and belongs to the technical field of mineral flotation collectingagents. The mineral flotation collecting agent for the oxidized ores such as ilmenite is used after ammonium dibutyl dithiophosphate, ethylenediaminetetraacetic acid salt, maleate, sodium oleate andthe like are mixed; and the mineral flotation collecting agent has the characteristics of good water solubility, good dispersion and high selective adsorption ability to objective minerals, and is mainly used for flotation separation of valuable minerals in the oxidized ores such as the ilmenite, scheelite and wolframite. The preparation method of the mineral flotation collecting agent for the oxidized ores is simple in process, operation is easy to control, the prepared collecting agent has the advantages of high selectivity, good dispersion, low agent dosage and high mineral separation comprehensive efficiency, and quite important significance for promoting mineral separation of the minerals such as the oxidized ores is achieved.

Description

technical field [0001] The invention relates to a flotation collector for oxidized minerals such as ilmenite, and belongs to the technical field of mineral flotation collectors. Background technique [0002] There are about 20 proven minerals containing tungsten on the earth, but the ones with economic development value are scheelite and wolframite. Due to the relatively high weight of tungsten ore, with a specific gravity between about 6-8, high grade and recovery can be achieved through gravity separation when only coarse particles are released. However, tungsten ores typically occur at points of contact between tungsten-bearing ores in the form of granite, in quartz ore, and in the form of carbonate sedimentary rocks. However, in actual mining, it will be found that scheelite is produced as fine particles. When gravity separation is used, many fine particles are generated due to high brittleness during crushing or grinding, so the recovery rate is greatly reduced. There...

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Problems solved by technology

Chinese patent CN102962144A discloses a kind of oleic acid with a degree of saponification of about 50% as a collector, and a method for flotation and separation of bauxite; A method for enriching fluorite by segmental flotation with oleic acid; Chinese patent CN102600985A discloses a method for flotation of ilmenite and iron oxide ore using a collector mixed with oleic acid, oxidized paraffin soap and fatty acid; The Chinese application CN107922993A of Heinkel Company adopts alkyl sulfosuccinate of alkoxy fatty alcohol as the flotation agent in non-sulfurized ore flotation, which can improve the flotation efficiency and reduce the cost of flotation agent to a certain extent. usage, but the preparation method of this flotation agent is complicated, the production cost is high, and it is difficult for enterprises to accept it when it is used on a large scale.

As a collector, oleic acid has strong versatility, good collection capacity, and high flotation recovery rate. It is widely used in the mineral flotation industry. However, oleic acid has poor selectivity, extremely low water solubility, and poor dispersibility. Flotation During the process, it is necessary to increase the temperature of the pulp to promote the dispersion of oleic acid in the pulp, resulting in an increase in energy consumption and cost during the beneficiation process

The substitutes of oleic acid, such as oxidized paraffin soap, have certain adaptability to low-temperature pulp, but their collection performance is not as good as that of oleic acid.

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