Cellophane direct flotation collecting agent and method for preparing same

A positive flotation, collector technology, applied in flotation, solid separation and other directions, can solve the problems of environmental pollution and human health impact, environmental water quality and human harm, chemical toxicity, etc., to achieve excellent flotation indicators, environmental protection Significant benefits and low cost effects

Inactive Publication Date: 2013-10-09
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the components of some collectors are more specific to certain collophosite, heating flotation can make it achieve a better flotation index, but some components are chemically toxic, which is harmful to environmental pollution and human health. will have a major impact
For example, f

Method used

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  • Cellophane direct flotation collecting agent and method for preparing same
  • Cellophane direct flotation collecting agent and method for preparing same
  • Cellophane direct flotation collecting agent and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1:

[0024] First add 0.2kg of cotton oil residue, 0.06kg of stearic acid and 0.54kg of industrial oleic acid into the reactor, and then slowly add 0.2kg of sodium hydroxide into a 20% aqueous solution, and heat to 85°C at 1200r / Stir the mixture for 3 hours at a speed of 1 min until the mixture is uniform. After cooling, the positive flotation collector is obtained, and the solid content is calculated by weighing (solid content = mass of raw materials except water / total mass of collector) Add water to prepare a 2wt% aqueous solution for positive flotation.

Example Embodiment

[0025] Example 2:

[0026] First add 0.2kg of cotton oil residue, 0.22kg of lauric acid and 0.33kg of industrial oleic acid to the reactor, and then slowly add 0.05kg of sodium hydroxide into a 15% aqueous solution, and heat to 65℃ at 1700r / min Stir the mixture for 2.5h at a rotation speed of 60°C, then add 0.2kg of chlorinated fatty acid citrate and stir until the mixture is uniform to obtain the positive flotation collector. Weigh the solid content and add water to make 2wt % Of the solution undergoes positive flotation.

[0027] The positive flotation collector prepared in Example 1 and Example 2 was used for positive flotation of the refractory collophanite. Add Na in positive flotation method 2 CO 3 Adjust pH and inhibit Ca 2+ , Mg 2+ , Na 2 SiO 3 Suppress SiO 2 , (NaPO 4 ) 6 Various metals are suppressed, and the positive flotation collector involved in the present invention is added to flotate useful collophanite.

[0028] At room temperature, the data is obtained after a ro...

Example Embodiment

[0032] Example 3:

[0033] First add 0.8kg of cotton oil residue, 0.04kg of lauric acid and 0.06kg of industrial oleic acid to the reactor, and then slowly add 0.05kg of sodium hydroxide into a 35% aqueous solution, and heat to 115°C at 1800r / min Stir the mixture for 2h at a rotation speed of 60°C, then add 0.05kg of chlorinated fatty acid citrate, and stir until the mixture is uniform to obtain the positive flotation collector. Weigh and calculate the solid content and add water to make 2wt% The solution undergoes positive flotation.

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Abstract

The invention relates to a cellophane direct flotation collecting agent and a method for preparing the cellophane direct flotation collecting agent, in particular to a novel cellophane direct flotation collecting agent which is formed by modification and compounding of fatty acid and the like. The method for preparing the cellophane direct flotation collecting agent comprises the steps that by weight, 20%-80% of cotton oil residues and 10%-60% of higher fatty acid are respectively added to a reaction still, strong base solution with any concentration is slowly added to the reaction still, the use amount of strong base is 5%-20% within the temperature of 60DEG C-150DEG C, the solution in the reaction still is well stirred at the speed of 500-2500rad/min, is cooled to the temperature of 60DEG C or so, then 0-20% of chlorinated fatty citric acid acids ester is added to the solution and the solution is well stirred, and accordingly the cellophane direct flotation collecting agent is obtained. The cellophane direct flotation collecting agent is high in selectivity and cellophane-carrying capability, has good sorting effect under a normal temperature, and can reach an excellent flotation index.

Description

technical field [0001] The invention relates to a new collephosite positive flotation collector and a preparation method thereof, in particular to a collophosite novel positive flotation collector which is modified and compounded from fatty acids and the like. Background technique [0002] Phosphate ore is an important chemical mineral raw material, and phosphate concentrate is widely used in industrial and agricultural fields. But for now, there are not many rich ores available for development in the world's phosphate rock resources, and most of them are lean ores. In my country, the average grade of phosphate rock is only 17%, and more than 75% of the phosphate rock belongs to low- and medium-grade collophosphine. With the gradual deepening of phosphate rock mining, the embedded particle size of collophosite becomes finer and finer, the silicate content increases, and the phosphorus grade gradually decreases. The development of highly selective and efficient positive flo...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/02
Inventor 黄齐茂刘璇潘志权
Owner WUHAN INSTITUTE OF TECHNOLOGY
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