SU1423162A1 - Method of opposite flotation of iron ores - Google Patents

Abstract

This invention relates to the enrichment of gtoz minerals and m. used in the flotation of iron ores to separate silicate minerals (quartz, mica, amphiboles, pyroxenes, etc.), in particular in the preparation of high purity concentrates for powder metallurgy, ferrites, iron catalysts. The purpose of the invention is to increase the technological parameters of the process while reducing the consumption of reagents due to increased flotation activity of the collector. The pulp is conditioned with a cation collector and the subsequent release of silicate minerals into the froth product is carried out. As a cationic collector, bis-vertic ammonium salts based on polyoxyethylene diamine of the formula SS С / s are introduced.

Description

(CH3) 2H®- (CH2-CH2-0) s-CH2-CH2-1cH3) | 2X I Gnos CH.

CH2 COOR

where R is the limiting hydrocarbon radical of the normal structure C (o N

COOR

 halogen ion The method with the known allows the silica to condense in concentration from 0.30-0.33 to 0, reducing the consumption by collecting 1.25 times.

or methyl radical

Н С

SNS

BUT

0) s-CH2-CH2-1cNz) 2 | 2X with CH.

I'm glad

SNS

COOR

 halogen ion The method, in comparison with the known, allows reducing the silica content in the flotation concentrates from 0.30-0.33 to 0.23-0.27% while reducing the flow rate of the collector 1.16-1.25 times.

four

ts;

Oh

The invention relates to the enrichment of minerals and can be used in the flotation of iron ores for the separation of silicate minerals, catalysts (quartz, mica, amphiboles, pyroxenes, Kumshngouite, etc.), in particular in the preparation of high purity magnetite concentrates (superconcentrates) for purposes of powder metallurgy, ferrites, iron catalysts, as well as for the development of

honest low grade metallurgical concentrates.

The purpose of the invention is to increase the technological parameters of the process while reducing the consumption of reagents by increasing the flotation activity of the collector.

Bis-quaternary ammonium salts based on polyoxyethylene diamines, in particular, the trioxide ethylene diamine of formula

(CH3} 2 N | CH2-CH2-0) 3-CH2-CH2-1 / CH3 21 2 X®

CH2CH2

II

COORCOOR

 halogen ion;

R - saturated aliphatic

radical. C, o} C, or methyl radical

SNS

nh-chj

; Example 1. Floated magnetically | git.ovy concentrate size of 99% class minus 45 microns, containing 71.3% of the same, ® ® -1 © (CH,) 2N (CH ,,) ,, N (CH,) J 2X

soy

where M is methyl

SNS

n c

SNS

 halogen-ion, abbreviated as decamethylene, and the described reagents are tri-ethylenediamine-based bischettermic ammonium salts, the general formula of which is given earlier is 3,6,9-trioxaundecamethylene bis N, N is dimethyl-N-l2- (1-methyl) ethyl -5-methyl 11c; clohexyloxy-carbonylmethylammonium dichloride, abbreviated as trioxonium-M, and 3,6,9-trioxaundecamethylene bis (N, H-dimethyl-N-decyloxycarbonylmethylamine) dichloride, abbreviated as trioxone; ,

The flotation scheme included one flotation operation, in which the foamy

lese and 1.07% silica according to the known and described methods at the first expenses of collectors. Dense pulp (1: 1) was conditioned with the collector for 3 minutes, the diluted pulp (1: 3) was floated for 2 minutes. Known as a bischetvertical ammonium salt based on decamethylenediamine-decamethylene-1,10-bis- (dimethylcarbmentoxymethyl ammonium) dihalide of the formula

M

I

The silica enriched product is a domain concentrate, the chamber product is a masterbatch.

The application of the described method allows reducing the silica content in flotation concentrates from 0.30-0.33% to 0.23-0.27%, reducing the consumption of the collector from 250-350 g / t to 200-300 g / t or 1 , 16-1.25 times.

Example 2. A marketable magnetite concentrate, obtained by an A-staged diagonal scheme of wet magnetic separation, before flotation, was subjected to grinding to 96-98% of class minus 40 microns and to the 5th stage of wet magnetic separation. The concentrate after this separation contained 71.4% iron and 0.7% silica.

Flotation Known and described methods were performed as described in example 1.

CH2-0) 3-CH2-CH2-N (CH3) 2

CH2 C O OR

where R is the limiting hydrocarbon radical of normal structure C, o HI, or methyl radical

2X

35

CH2 C O OR

SNS

CH

 halogen ion

Claims (2)

Claim The method of reverse flotation of iron ores, including conditioning, pulps with a cationic collector and the subsequent separation of silicate minerals into a foam product, characterized in that, in order to increase technological parameters of the process while reducing the consumption of reagents by enhancing 25 flotation activity of the collector, as cationic collectors are injected bis-quaternary ammonium salts based on polyoxyethylene diamine of the formula (CH ₃ ) ₂ N- (CH ₂ -CH ₂ -0) _3- CHg ”CH ₂ -M (CH ₃ ) ₂ sn ₂ sn ₂ I I COOR COOR 2 Χθ> 35 where R is the saturated hydrocarbon radical of the normal structure C ₍₀ H ₂₁ or methyl radical X * is a halogen ion.