Hydroximic acid-sulfonic acid multi-ligand metal complex collecting agent, and preparation method and application thereof

A metal complex and hydroxamic acid technology, applied in solid separation, flotation, etc., can solve the problems of large amount of inhibitors, difficulty in separating titanium-containing minerals from gangue minerals, and low recovery rate, so as to improve the grade of concentrate and the recovery rate of flotation operations, which are beneficial to large-scale production and application, and reduce the cost of beneficiation

Active Publication Date: 2020-01-24
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the flotation of titanium-containing minerals in the prior art using traditional fatty acid collectors, etc., there are problems such as difficult separation of titanium-containing minerals and gangue minerals, large amount of inhibitors, and low recovery rate. The first purpose of the present invention is to To provide a hydroxime with extremely strong selective collection capacity for titanium-containing minerals such as ilmenite, rutile and anatase, and to achieve efficient separation of these titanium-containing minerals from gangue minerals such as silicate and carbonate Acid-sulfonic acid multi-ligand metal complex collector

Method used

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  • Hydroximic acid-sulfonic acid multi-ligand metal complex collecting agent, and preparation method and application thereof
  • Hydroximic acid-sulfonic acid multi-ligand metal complex collecting agent, and preparation method and application thereof
  • Hydroximic acid-sulfonic acid multi-ligand metal complex collecting agent, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Weigh 0.001mol of benzohydroxamic acid and put it into a 500mL flask, add 300mL of methanol as a solvent, add 0.0002mol of ethyl acetate after complete dissolution, then add sodium hydroxide to adjust the pH value to 9.5, and stir the reaction at room temperature for 25min. Obtain hydroxamate; Hydroxamate and n-octadecyl sodium sulfonate are added in the flask according to the molar mass ratio of 1:1, add glycerin to make its mass concentration be 40%, then be placed in the constant temperature water bath, use magnetic Stirring and heating to 85°C and reacting for 25 minutes, the obtained liquid was recrystallized three times after rotary evaporation to obtain a solid; the obtained solid was added to the flask, and the mixed liquid of water and methanol was prepared according to the volume ratio of water and methanol at 7:1 and added In the flask, the mass percent concentration of the solid in the mixed solution of water and methanol is 35%, to obtain hydroxamic acid-alk...

Embodiment 2

[0056] Weigh 0.002mol of propyl hydroxamic acid and put it into a 500mL flask, add 300mL of methanol as a solvent, add 0.0004mol of ethyl acetate after complete dissolution, then add sodium hydroxide to adjust the pH value to 8.0, stir and react at room temperature for 30min, Obtain hydroxamate; Hydroxamate and sodium dodecylsulfonate add in the flask according to the molar mass ratio of 1.5:1, add glycerin and make its mass concentration be 38%, then be placed in the constant temperature water bath, use magnetic Stir and heat to 80°C and react for 30 minutes. The obtained liquid is recrystallized three times after rotary evaporation to obtain a solid; add the obtained solid to the flask, and prepare a mixed liquid of water and methanol according to the volume ratio of water and methanol at 8:1. Add it into a flask so that the mass percentage concentration of the solid in the mixed solution of water and methanol is 45%, to obtain hydroxamic acid-alkylsulfonic acid multiligand c...

Embodiment 3

[0062] Weigh 0.001mol of benzohydroxamic acid and put it into a 500mL flask, add 300mL of methanol as a solvent, add 0.0002mol of ethyl acetate after complete dissolution, then add sodium hydroxide to adjust the pH value to 9.0, and stir and react at room temperature for 30min. Obtain hydroxamate; hydroxamate and sodium dodecylbenzenesulfonate are added in the flask according to the molar mass ratio of 1:1, add glycerin to make its mass concentration be 35%, then be placed in the constant temperature water bath, use Stir with a magnet and heat to 90°C and react for 30 minutes. The obtained liquid is recrystallized three times after rotary evaporation to obtain a solid; add the obtained solid to the flask, and prepare a mixed liquid of water and methanol according to the volume ratio of water and methanol at 6:1. The mixture is added into a flask so that the mass percent concentration of the solid in the mixed solution of water and methanol is 40%, and the hydroxamic acid-alkyls...

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Abstract

The invention discloses a hydroxamic acid-sulfonic acid multi-ligand metal complex collecting agent, and a preparation method and an application thereof. The hydroxamic acid-sulfonic acid multi-ligandmetal complex collecting agent is obtained by a coordination reaction of hydroxamic acid-sulfonic acid multi-ligand composite micelles, prepared from hydroximate and sulfonate, and metal ions. The hydroxamic acid-sulfonic acid multi-ligand metal complex collecting agent has extremely high selective collecting capacity on titaniferous minerals such as ilmenite, rutile and anatase, can achieve selective flotation separation of the titaniferous minerals and gangue minerals, and fundamentally solves the technical problem of difficult flotation separation of the titaniferous minerals and the gangue minerals.

Description

technical field [0001] The invention relates to a flotation collector, in particular to a hydroxamic acid-sulfonic acid multi-ligand metal complex collector used for flotation separation of titanium-containing minerals, and also relates to a preparation method thereof, and the use of hydroxamic acid The invention relates to a method for realizing high-efficiency flotation separation of titanium-containing minerals and gangue minerals by acid-sulfonic acid multi-ligand metal complexes, belonging to the technical field of mineral flotation. Background technique [0002] China's titanium resource reserves rank first in the world, accounting for more than 30% of the world's total reserves. The types of titanium resources in my country are relatively complete, with both primary ore and secondary ore, of which primary vanadium-titanium-iron-magnetite is the main one. Primary ilmenite accounts for 97% of the total resource reserves of ilmenite in my country, and placer only accoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/012B03D1/02B03D101/02B03D103/04
CPCB03D1/012B03D1/02B03D2201/02B03D2203/04
Inventor 韩海生卫召孙伟胡岳华王若林孙文娟付君浩
Owner CENT SOUTH UNIV
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