SU1050749A1 - Method of flotation of clayey fluorite ores - Google Patents

Abstract

THE FLOTATION METHOD OF CLAYFLOW FLOORITOVSSS ORE, including preconditioning of the raw material in an alkaline medium with liquid glass, sulfuric acid aluminum and fatty acid collector, so that it can be used in order to increase the extraction of fluorite in the concentrate, i'm ian, and I would be able to do so in order to increase the extraction of fluorite into the concentrate, i'm using water and so on. t VAT residue production of antioxidant FC-16.

Description

ABOUT

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The invention relates to the beneficiation of minerals, in particular, to methods for the flotation of fluorite ore.

A known method of flotation is clay fluorite ores, which involves the processing of pulp with polyethylene oxyalkylphenol and a collector. Poly ethylene oxyalkyl phenol is used to eliminate the harmful effect of clay sludge on fluorite fj flotation.

The disadvantage of this method is the low extraction of the useful component in the concentrate, caused by the low selectivity of the modifier used.

The closest to the proposed technological essence and the achieved effect is the method of flotation of clay fluorite ores, including preconditioning of the raw material in an alkaline medium with liquid glass, aluminum sulphate and fatty acid collector 2,

A disadvantage of the known method is the low technological extraction of fluorite due to the harmful effect of the sludge on the flotation, which is associated with an imperfect reagent regime, in particular a low-selective depressant.

The purpose of the invention is to increase the extraction of fluorite in the concentrate.

This goal is achieved by the fact that in the flotation method, fluorite ore clay, including preconditioning of the raw material in an alkaline medium with liquid glass, aluminum sulphate and fatty acid collector, additionally bottoms production of the antioxidant production of HP-16 is introduced into the air.

Vat residues of the production of antioxidant FC-16 contain:

- atomic phenols (in terms of anhydrous mass),% by weight not more than 5%}

-phenol fraction up to 280 С - no less than 52J

- water,%, not less than 10.

The bottoms are used up to now as a component of the organic binder used in the preparation process.

and rods in the foundry. I — The bottoms are a dark brown viscous liquid, soluble in alkaline solution (1.0-2.0% soda), convenient for dosing and, as shown below, adding it to the pulp conditioning before flotation increases extraction fluorite concentrate as compared to flotation without it.

The presence of the phenol fraction in the bottoms explains their depressant action. Sorption of clay minerals of phenolic fractions possessing

strongly hydrophilicating properties, leads to peptization of clay slurries and reduction of slurry coatings both on the particles of the useful mineral and on air bubbles, i.e. distillation residues act as an eporessor of clay slimes. on the other hand, when sorbing on clay non-minerals, the reagent interferes with the sorption of the collector on them and, thereby, increases the flotation rate of fluorite,

The foaming properties of the phenolic fractions provide the action of the reagent, as a regulator of foaming ..

The method is carried out as follows.

The original ore is crushed and conditioned with the bottoms of the production of the antioxidant FC-16 by liquid glass, aluminum sulphate, geller collector in an alkaline medium, and flotirate fluorite.

PR i m e r. The positive effect on the technology introduced into the conditioning of bottoms residues from the production of the antioxidant FC-16 is shown on the example of fluorite ore flotation. Containing,%: Sfluorite 38 / calcite 1/2 silica 40.6 and clay 5.

In parallel, in order to compare the results of flotation, experiments were carried out on the reagent regime in a known manner. sob.

The experiments were carried out according to the following scheme: grinding up to 70% of the class minus 0.074 MMj axis of fluorite flotation, control flotation with obtaining concentrate and tailings 1; Five cleanings of the concentrate of the main fluorite flotation / flotation of the condensed intermediate products of the cleanup and concentrate of the control flotation to obtain a concentrate and tailings PJ concentrate of the industrial flotation returned to the first cleanup.

Saponified technical fatty acids (TFA) were used as collectors ..

According to the mode of the prototype, waste rock was depressed by liquid: glass and aluminum sulphate; according to the proposed method, additionally to these chappressors, bottoms production of the antioxidant HF-16 in the form of a 1% solution prepared in 1.0-2.0% soda solution is supplied.

Reagent solution is given in the table.

From the experimental data it can be seen that the addition of bottoms to the pulp concentration allows for an increase. To extract fluorite in concentrate, both in the open cycle and in the open cycle.

Thus, in a closed cycle, according to the proposed method, a fluorite concentrate with a fluorite content of 94.14% was obtained, and during the recovery of fluorite into a concentrate, 90.4%.

According to the prototype, fluorite concentrate was obtained in a closed cycle. fluorite content of 94.0% at

extracting 87.8%, i.e. with equal quality of the concentrates according to the proposed method, extraction to the concentrate increases by 2.6%.

Thus, the use of the proposed method allows to increase the extraction of fluorite in the concentrate by 2.6%.

Claims (1)

METHOD OF FLOTATION OF CLAY FLOORITE ORES, including preconditioning of feedstock in an alkaline medium with liquid glass, aluminum sulfate and a fatty acid collector, in that, in order to increase the extraction of fluorite into the concentrate, they are additionally introduced into the conditioning bottoms of antioxidant production ФЧ-16.