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Hydroxamic acid-sulfonic acid multi-ligand metal complex collector and its preparation method and application

A metal complex and hydroxamic acid technology, which is applied in the field of hydroxamic acid-sulfonic acid multi-ligand metal complex collectors and flotation collectors, can solve the problem of large amount of inhibitors, titanium-containing minerals and gangue Difficult separation of minerals, low recovery rate and other problems, to achieve the effect of large-scale production and application, reduce the cost of mineral processing, and improve the recovery rate

Active Publication Date: 2021-07-27
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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  • Hydroxamic acid-sulfonic acid multi-ligand metal complex collector and its preparation method and application
  • Hydroxamic acid-sulfonic acid multi-ligand metal complex collector and its preparation method and application
  • Hydroxamic acid-sulfonic acid multi-ligand metal complex collector and its preparation method and application

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 collector as well as its preparation method and application. Hydroxamic acid-sulfonic acid multi-ligand metal complex collector is obtained by coordination reaction between hydroxamic acid-sulfonic acid multi-ligand complex micelles prepared from hydroxamate and sulfonate and metal ions. The hydroxamic acid-sulfonic acid multi-ligand metal complex collector has a strong selective collection ability for titanium-containing minerals such as ilmenite, rutile and anatase, and can realize the separation of titanium-containing minerals and gangue minerals. Selective flotation separation fundamentally solves the technical problem of difficult flotation separation of titanium-containing minerals and 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 Patents(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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