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Ore dressing collector and preparation method thereof

A technology of collectors and surfactants, which is applied in the field of low-temperature ore dressing collectors and their preparation, can solve the problems of high energy consumption, high production costs, and low grades of concentrates, so as to improve product recovery and product grades , The effect of reducing the cost of beneficiation

Inactive Publication Date: 2011-11-23
烟台市富林矿山机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the collectors used in the domestic non-metallic mineral processing industry are mainly a type of product with oleic acid as the main raw material. Oleic acid is an important collector for the flotation of non-sulfide ores. Hard water, poor water solubility, low temperature resistance, poor dispersion, large amount of concentrate, low grade of concentrate, etc. In the process of beneficiation, the ore pulp needs to be heated, which consumes a lot of energy; moreover, in the current mineral resources, there are many lean ore, few rich ore, and more difficult ore. , less easy ore dressing, which increases the difficulty of the ore dressing process; the existing relevant documents and patent introduction products at home and abroad cannot meet the requirements of unheated ore slurry dressing in winter in the northern region; Chinese Patent No. 200910021853.2 discloses a low-temperature flotation Fluorite can be normally floated at a slurry temperature of 10°C, but the water temperature in the northern region is below 10°C all the year round, so the slurry must be heated especially in winter in the northern region, and the production cost is high; these conditions make the current mineral processing industry urgently need A collector that can be applied at a low temperature below 10°C and has good collection selectivity

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  • Ore dressing collector and preparation method thereof

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Effect test

Embodiment 1

[0021] To prepare the product of the present invention of 1000kg, get oleic acid 760kg, sodium dodecylsulfonate 20kg, sodium cetylsulfonate 30kg, N, N-dimethylamide-dimethyl sulfate 55kg, POCl 3 65kg, PCl 3 70kg, its preparation method is:

[0022] 1. Pour oleic acid into the stirring tank, slowly add sodium dodecylsulfonate and sodium hexadecylsulfonate, and stir while adding. This step is carried out at 20-30°C;

[0023] 2. Add the mixed solution in the previous step into 1mol / L hydrochloric acid solution, use graphite and iron as electrodes, graphite as anode, iron as cathode, anode current density is 1000A / m 2 Under the conditions of electrolysis, the electrolysis temperature is 35 ℃, and the electrolysis time is 0.5h;

[0024] 3. After the electrolysis, the mixed liquid is introduced into the separator, and the oil phase is separated from the water phase to obtain the oil phase;

[0025] 4. Add N,N-dimethylamide-dimethyl sulfate and POCl to the obtained oil phase 3 , ...

Embodiment 2

[0027] To prepare the product of the present invention of 1000kg, get oleic acid 780kg, cetyl sodium sulfonate 25kg, didodecyldimethylammonium chloride 20kg, N, N-dimethylamide-dimethyl sulfate 50kg, PCl 3 125kg, its preparation method is:

[0028] 1. Pour oleic acid into the stirring tank, slowly add sodium cetyl sulfonate and didodecyl dimethyl ammonium chloride, and stir while adding. This step is carried out at 20-30 °C;

[0029] 2. Add the mixed solution in the previous step into 1mol / L hydrochloric acid solution, use graphite and iron as electrodes, graphite as anode, iron as cathode, anode current density is 1200A / m 2 Under the conditions of electrolysis, the electrolysis temperature is 30 ℃, and the electrolysis time is 1h;

[0030] 3. After the electrolysis, the mixed liquid is introduced into the separator, and the oil phase is separated from the water phase to obtain the oil phase;

[0031] 4. Add N,N-dimethylamide-dimethyl sulfate and PCl to the obtained oil pha...

Embodiment 3

[0033] To prepare the product of the present invention of 1000kg, get oleic acid 780kg, dodecyltrimethylammonium chloride 40kg, N, N-dimethylamide-dimethyl sulfate 60kg, PCl 5 120kg, its preparation method is:

[0034] 1. Pour oleic acid into the stirring tank, slowly add dodecyltrimethylammonium chloride, and stir while adding. This step is carried out at 20-30°C;

[0035] 2. Add the mixed solution in the previous step into 1mol / L hydrochloric acid solution, use graphite and iron as electrodes, graphite as anode, iron as cathode, anode current density is 1400A / m 2 Under the conditions of electrolysis, the electrolysis temperature is 25 ℃, and the electrolysis time is 1.5h;

[0036] 3. After the electrolysis, the mixed liquid is introduced into the separator, and the oil phase is separated from the water phase to obtain the oil phase;

[0037] 4. Add N,N-dimethylamide-dimethyl sulfate and PCl to the obtained oil phase 5 , heated up to 55°C, and reacted for 20 minutes to obt...

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Abstract

The invention discloses an ore dressing collector and a preparation method thereof. The ore dressing collector consists of the following raw materials in percentage by weight: 75 to 80 percent of oleic acid, 3 to 5 percent of surfactant, 5 to 7 percent of N,N-dimethylformamide-dimethyl sulfate, and 10 to 15 percent of chloride. The oleic acid is subjected to electrolytic dissociation and chemicalmodification by the steps of activation, electrolyzation, separation and introduction of an active group so as to form the ore dressing collector with high activity, dispersibility and selectivity. The ore dressing collector is particularly suitable for ore dressing of minerals such as non-metallic fluorite, kyanite, barite, metal white tungsten, hematite reverse flotation and the like, particularly the ore dressing at low temperature (more than or equal to 2 DEG C).

Description

Technical field: [0001] The invention relates to an ore dressing collector and a preparation method thereof, in particular to a low-temperature ore dressing collector for non-metallic fluorite, kyanite, barite, metal scheelite, hematite reverse flotation and other mineral dressings. Collector and its preparation method. Background technique: [0002] At present, the collectors used in the domestic non-metallic mineral processing industry are mainly a type of product with oleic acid as the main raw material. Oleic acid is an important collector for the flotation of non-sulfide ores. Hard water, poor water solubility, low temperature resistance, poor dispersion, large amount of concentrate, low grade of concentrate, etc. In the process of beneficiation, the ore pulp needs to be heated, which consumes a lot of energy; moreover, in the current mineral resources, there are many lean ore, few rich ore, and more difficult ore. , less easy ore dressing, which increases the difficul...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/02
Inventor 蔡宗文王岩孙高飞孙庆杰
Owner 烟台市富林矿山机械有限公司
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