SU1616902A1 - N-(2-oxy-4,7-dioxanonen-8-yl)-dodecylammonium bromide as flotation agent - Google Patents

Abstract

This invention relates to organic ammonium salts, in particular to N- (2-hydroxy-4,7-dioxanonen-8-yl) -dodecylammonium bromide, which can be used as a flotation reagent in the flotation of mica from muscovite schists. The goal is to detect more active compounds. The preparation is carried out by the reaction of dodecyl bromide with 1-amino-4,7-dioxanone-8-ol-2. The output is quantitative. Gross - formula C ₁₉ H ₄₀ NO ₃ BR. 1 tab.

Description

This invention relates to a novel chemical compound, namely, N- (2-OXY-4,7-dioxanonen-8-yl) dodeclammonium bromide (ODB) of the general form -;

ly

(CHp, OCH., CH (OH) ,,, H2j-. Br®

which can be used as a flotation reagent in the flotation of saliva from muscovite shale.

The purpose of the invention is the discovery of new compounds with increased flotation activity in the oxyaminone range.

Example 1. Synthesis of H- (2-hydroxy-

4,7-dioxanone-8-yl) dodecylammonium bromide. ,

To 12.45 g (0.05 mol) of dodecyl bromide, 8.4 g (0.05 mol) of 1-amine-4,7-dioxanone-8-ol-2 was added. The reaction mixture with stirring

Dagreute to 50 ° C. After cooling, the reaction mass becomes viscous. N- (2-OXY-4,7-dioxanonen-8-yl) dodecylammonium bromide is obtained in quantitative yield.

Found,%: C 55.76; 55.63; H 10.35 9.89; N 3.51; 3.77; Br 19.35; 19.49.

C, H4oOsVg.

C, 55.60; H 9 82- N 3.41, - Br 19.47.

PRI m e. The test procedure and the proposed compound in the flotation of mica ores.

For flotation, representative ore from the Tepsinsk muscovite deposit was used. Material composition

ORES - garnet-muscovite-biotite-quartz slates.

The ore was crushed with N. shop crusher up to. 3.0 mm thick, class - 3 + 1 mm.

ABOUT

N "i.

O5

with about

1HE

| Directed to foam separation and vibration separation.

j The ore with a particle size of 1.0 mm is pulped, sludge grade 40 μm is treated with sulfuric acid and sodium silicate, conditioned simultaneously with a cationic collector of ANP-2 1 and M- (2-hydroxy-4,7-dioxanone-8- silt) to -decylammonium bromide, foaming agent, T-80 and float.

; The flotation is carried out on a laboratory flotation machine of a mechanical type with a semi-mica concentrate and waste tailings.

Reagent regimen for operations on: the proposed method, in acidic, pH 2.8 :. sulfuric acid 649 g / t Cation ANP-2 collector 500 g / t; T-80 blowing agent 160 g / t; N -, (2- hydroxy-4,7-dioxanonen-8-yl) dodecylammonium bromide 1-5 g / t.

: Reagent regime with operations of the nd base method, in an acidic medium, pH 2.8: sulfuric acid 649 g / t; cationic collector of ANP-2 500 g / t; T-80 frother 160 g / t.

 The flotation time for the proposed and basic methods 3 minutes

 The test results for K- (2-oxy-4,; 7-dioxanonen-8-yl) dodecylammonium bromide (EFA) are given in the table (4 times acid).

: In baseline experiments (without ODB additions) maximum mica extraction

is in an acidic environment of 49.8% with a content of 73.1%.

In the proposed method, the optimal consumption of the ODB reagent is 2 g / ton.

The flotation results are superior to baseline by 17.67% in recovery and by 6.9% in acid content.

Thus, flotation tests show the possibility of using H- (2-hydroxy-457-dioxanone-8-yl) dodecylammonium bromide for intensifying the flotation process of enrichment of muscovite ores. The use of ODB for this purpose implies a low consumption of it - 2 g / t and a low concentration of solutions. This determines the low cost of reagents, as well as the safety of working with solutions, which, together with the collective properties, is one of the main factors determining the effectiveness of its use in flotation.

Ula Invention Form

N- (2-OKCH-4, 7-dioxanonen-8-yl) - dodep il. Ammonium bromide of the general formula

.

% С15.Н „.

 (SN) (OH) CHj

as a flotation reagent in the flotation of mica from muscovite shale.

Claims (1)

Claim N- (2-hydroxy-4,7-dioxanonen-8-yl) ~ dodecylammonium bromide of the general formula CH _d = CHO (CH ₂ ) _and OCH ^ CH (OH) CH _g 1 ^ N _g С _1g H _2S flotation reagent during flotation of mica from muscovite shales. Product Consumption Exit Content · ’ Yevleche enrichment EFA, g / t MICA % Concentrate 2!, 10 80.0 57.81 Tails 78.90 15.67 42.19 Out of ore 500.00 29.20 100.00 Concentrate 2 21.89 82.00 67.47 Tails 73.11 14.40 32,53 Ore suit 100.00 29.20 100.00 Concentrate 3 19.33 79.00 52,43 Tails 80.62 17.22 47.57 Yeh. Ore 100.00 29.20 100.00 Concentrate 4 20.39- 78.00 54.46 Tails 79.61 16.70 45.54 Iskh ore 100.00 29.20 100.00 Concentrate 5 21.67 78.00 57.82 Tails 79.33 15.50 42.12 Ref. ore 100.00 29.20 100.00 R'editor N.Kistulinets