SU774601A1 - Ore flotation collector - Google Patents

Description

The invention relates to the field of ore concentration by flotation and can be used in the processing of sulfide and oxidized ores. _

It is known to use as ^co-e constituencies rather for ore flotation and naftengidroksamovyh alkilgidroksamovyh acids [1].

However, in some cases, these agents do not provide sufficient ^υ achieve exactly the results of high enrichment.

Known compounds of polyalkylacetamide acids of the General formula

R '15

RC — SLEEPY

I and where R, R ¹ and R ¹ 'are hydrocarbon radicals used as extractants * 2 [2].

The purpose of the invention is the improvement of technological indicators of flotation of sulphide-25 and oxidized ores.

The goal is achieved by using alkali metal as a collector of polyalkylacetate hydroxamic acids;

^< -p ^ 4p + t ΐ of the indicated general formula I or their water-soluble salts of the formula

C “H _{Xn + t} l'-C-SONIAOV

I where R is hydrogen,

R 'is hydrogen, n + m + p = 7-15.

Example 1. Cassiterite ore was crushed to a particle size of 60% class - 74 μm, subjected to sulfide flotation, desliming according to class 10 μm and sequentially treated with liquid glass 100 g / t, sulfuric acid to pH 5.5 with a mixture of polyalkylacetate hydroxamic acids of the formula

Spn _{2p + 1} d'-s-carotid

I where R ^{1 is} hydrogen;

n + w = 7-9, in an amount of 150 g / t and was subjected to basic flotation and three purifications at pH 4, 3.5 and 2.5, respectively.

Foamy product - tin concentrate of sravobesolovin g / t, oxalic acid was exposed to flotation 6. created by the Foamy product! 0

The proposed collector for nation with known reagents bakes the increase in extraction in concentrate by 4.5 - 14.6% while improving the quality of the concentrate by 0.7 0.85%.

Example '2. Perovskite ore, crushed to a particle size of 50%, class 74 μm, was treated with a mixture of sodium salts of alkylhydroxamic acids £ n ^B in + l

СрН _grK - С- CONHONa where p + w + p = 10-15, in the amount of 250 lots (50 g / t) and with a value of sulfuric acid.

perovskite concentrate.

The use of the reagent helps to increase the extraction of titanium dioxide in the concentrate by 5.3 - 7.9% while improving the quality of the concentrate by 1.7 .4.0%.

Example 3. Sulfide-oxidized copper ore was crushed to a particle size of 70% class - 74 microns, was treated with liquid glass - 600 g / t, a mixture of potassium salts of acids of the formula x'-C-SGHIOK

I where R '. -hydrogen; n ^ m »7-9, in an amount of 60 g / t, cyclohexanol - 10 g / t and was flotated. 35

thirty'

Editor T. Nikolskaya

The foam product is copper concentrate.

. Recovery, copper in concentrate increases by 7.0% with an increase in copper content in concentrate by 0.9%.

Thus, the main advantage of the invention is to increase the technological parameters of the flotation of sulfide and oxidized.

Claims (2)

The invention relates to the field of enrichment of ores by flotation and can be used in the processing of sulphide and oxidized ores. It is known to use naphthenhydroxamic and alkylhydroxamic acids 1 as co-builders for flotation of ores. However, in some cases these reagents do not achieve sufficiently high enrichment results. Compounds of polyalkyl hydroxamic acids of the general formula B RC-COWHOH used as extractants 2. The purpose of the invention is to increase the technological parameters of flotation of sulfide and oxidized ores4. The goal is achieved by using as a collector polyalkylacetate hydroxamic acids of the general formula I or their water balance of the formula CnHjn + j c-sleep, where R is hydrogen, alkaline metal; R is hydrogen, CpHQ, p; n-Hn + p 7-15 .. Example 1. Cassiterite ore was crushed to a particle size of 60% of the class - 74 μm, subjected to sulfide flotation, slime on the class of 10 μm and sequentially treated with liquid glass 100 g / t, sulfuric acid to pH 5, 5 with a mixture of polyalkyl acetohydroxamic acids of the formula w-C-SONN I "Hifn t where R is hydrogen; n +, c. the amount of 150 g / t and was subjected to the main flotation and three cleaning up at pH 4, 3.5 and 2.5, respectively. Foamy product - tin concentrate. The proposed collector, in comparison with the known reagents, provides an increase in the extraction of tin into concentrate by 4.5–14.6% with an improvement in the quality of the concentrate by O, 7 0, 85%. Example 2. Perovskite ores, crushed to a particle size of 50% of the class of 74 microns, were treated with a mixture of sodium salts of hydroxamic acids of SpNa „d CpHjptj-C-CO JHONo, .. mliimn. where n- -m + p 10-15, in the amount of 250 g / t, oxalic acid (50 g / t) and was subjected to flotation at a pH value of 6. created by sulfuric acid. Perovskite foam product concentrate. The use of the reagent contributes to an increase in the extraction of titanium dioxide in the concentrate by 5.3–7.9% while the quality of the concentrate is improved by 1.7, 4.0%. Example 3. Sulfide-oxidized copper ore was crushed to a grain size of 70% of the class — 74 μm, treated with liquid glass — 600 g / t, a mixture of potassium salts of acids of the formula with “Ng” 41 cc-shsh (where R is hydrogen nvrns7-9, in the amount of 60 g / t, cyclohexanol - 10 g / t and subjected to flotation. Foamy product - copper concentrate. .The recovery, copper to concentrate increases by 7.0% with an increase in the content of copper in the concentrate by 0.9% Thus, the main advantage of the invention is to improve the technological performance of sulphide and oxidized flotation flotation. and the invention. The use of polyalkylacetic hydroxamic acids or their water-soluble salts of the formula. jnHzn + i RC-COKHOK mKini + j where R is hydrogen, alkali metal; R. is hydrogen, .CpH2p +; nvni "-p 7-15, as collector for flotation of the ORE. Sources of information taken into account during the examination 1. USSR author's certificate No. 135431, cl. 03 D 1/92, 1960. 2.Gasparini SM: et al. Lournal of chem. and. engineering data, 197o, V. 21, N 4, p. 504.