SU648272A1 - Method of preparing cationic collector for flotation of potassium-containing ores - Google Patents

Description

 one

This invention relates to the mineralization of minerals by the method of flotation.

During the flotation of many types of ores are used. Cat collectors, alone or in combination with apolar reagents l.

However, the effectiveness of such combinations is low.

The closest in technical essence and the achieved result to the proposed method is the preparation of a cationic collector for a fleet of scientific research institutes, including the introduction of an apolar reagent in an aqueous solution of a cationic collector with subsequent emulsification of the mixture by mechanical or ultrasonic methods 2.

In the practice of enrichment of potash ores, a polydisperse and n & emulsion of phenolic refining oils (PFC) is used in a 1% solution of hydrochloric acid octadeglyamine obtained by vigorous mechanical agitation.

The disadvantage of such methods of feeding the reagents is their low flow rate, low efficiency of the flotation process and subsequent dewatering operations (filtration and drying) due to the presence of an excess of poorly dispersed reagent.

The purpose of the invention is to increase the flotation activity of the cation collector.

This is achieved by the fact that the apolar reagent at 60-80 ° C is dispersed in the cationic collector and obtained. the mixture is added to a solvent heated to 60-80 ° C at a pH of 1-4.

Acidified water or a solution of chloro-alkali can be used as a solvent.

Claims (2)

The method is carried out as follows. The cation collector is heated & num up to 60-80 ° C and the apolar reagent is added to it. Then, the resulting 64 mixture is poured into a solvent heated to 60-80 ° C and having a pH of 1-4. When using low-viscous apolar pjagents, heating is not required. As a result, the reagent mixture self-emulsifies and a stable emulsion is formed having an optimum dispersion composition. The collector, prepared according to the method according to the invention, was tested during the flotation of coarse-grained svloyoin in comparison with the action of the cationic reagent prepared by the known method, Example. Octadedylamine, HFC and fuel oil are used as a collector. According to a known method, 6 g of HFC are dispersed in a 1% solution of amine hydrochloric acid at 70 ° C, and the fuel oil is supplied separately from the amine hydrochloride. Even with vigorous stirring, fuel oil is not dispersed in the polar collector solution. The pre / stepped method is dissolved at 7 ° C with 1 g of octadecylamine in 5 g of HFC or fuel oil, and the resulting solution, by gentle stirring, is poured into heated to water at pH 3. A stable emulsion of apolar reagent containing a polar collector is formed. Pre-slime sil. Vinite ore (KCI content 23%) is in contact for 2 minutes at 35 with a collector. Flotation is carried out in a laboratory fluidized bed machine with a capacity of 1 liter for 1 minute. The use of a reagent mixture prepared according to the proposed method makes it possible, with a certain decrease in the consumption of the collector (by 200 g / t), to increase the technological performance of extraction by 2% and to improve the quality of the concentrate by 2-4%. Industrial verification of the method of preparing an emulsion in an enterprise processing potassium ore showed the possibility of obtaining a stable fuel oil emulsion, which made it possible to reduce the content of KC1 in the tailings of coarse-grained flopapia by 1, 2%, and reduce the consumption of fuel oil. The moisture content and granulometric composition of the coarse-grained concentrate meets the requirements of the invention. Formula of the invention -80 ° C is dispersed in a cationic collector and the mixture is added to a solvent heated to 6 ° -80 ° C at pH 1-4. Sources of information taken into account in the examination 1. US Patent No. 3341135, cl. 209-166, 1964.: 2. Mitrofanov, S.I. Selective -flotaci, M., Nedra, 1967, p. 79-80,