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N-alkylhydroxyoxime acid-O-alkyl thiamine collecting agent, preparation and application of N-alkylhydroxyoxime acid-O-alkyl thiamine collecting agent

A technology of hydrocarbyl thiourethane and alkyl hydroxamic acid, which is applied in the direction of solid separation and flotation, can solve the problem of no N-alkyl, etc., achieve good overall performance, improve flotation recovery rate, and strengthen hydrophobicity Effect

Active Publication Date: 2017-07-18
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no N-alkyl hydroxamic acid-O-hydrocarbyl thiocarbamate compound, and its preparation and flotation application report

Method used

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  • N-alkylhydroxyoxime acid-O-alkyl thiamine collecting agent, preparation and application of N-alkylhydroxyoxime acid-O-alkyl thiamine collecting agent
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  • N-alkylhydroxyoxime acid-O-alkyl thiamine collecting agent, preparation and application of N-alkylhydroxyoxime acid-O-alkyl thiamine collecting agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Preparation of N-(4-butylhydroxamic acid)-O-dodecylthiocarbamate

[0058] Dissolve 11.65 parts of sodium chloroacetate in 60 parts of water, add 29.82 parts of sodium n-dodecyl xanthate under stirring, then add a small amount of sodium hydroxide to adjust the pH of the solution to about 7.5, and react in a water bath at 80°C After 2 hours, cool down to room temperature, add 16.22 parts of 4-aminobutyroxamic acid under stirring, and then react at 70°C for 1 hour, stop stirring, cool down to room temperature, there is a white solid, filter, and the obtained white solid is the desired Product, the yield based on sodium chloroacetate is 93.6%.

[0059] The hydrogen spectrum data of the N-(4-butylhydroxamic acid)-O-dodecylthiocarbamate obtained in this embodiment is shown in Table 1: the infrared spectrum information is shown in Table 2:

[0060] Table 1

[0061]

[0062] Table 2

[0063]

Embodiment 2

[0065] Preparation of N-(4-butylhydroxamic acid)-O-octylthiocarbamate

[0066] Dissolve 11.65 parts of sodium chloroacetate in 60 parts of water, add 23.94 parts of n-octyl xanthate sodium under stirring, then add a small amount of sodium hydroxide to adjust the pH of the solution to about 7.5, and react in a water bath at 80°C for 2 hours , cool down to normal temperature, add 15.82 parts of 4-aminobutyroxamic acid under stirring, and then react at 70°C for 1 hour, stop stirring, let stand to separate layers, the upper layer of oily liquid is the desired product, based on sodium chloroacetate The yield was 92.4%.

Embodiment 3

[0068] Preparation of N-(6-hexylhydroxamic acid)-O-octylthiocarbamate

[0069] Dissolve 11.65 parts of sodium chloroacetate in 60 parts of water, add 23.94 parts of sodium n-octyl xanthate under stirring, then add a small amount of sodium hydroxide to adjust the pH of the solution to about 7.5, and react in a water bath at 80°C for 2.5 hours , cool down to normal temperature, add 19.16 parts of 6-aminocaproxamic acid under stirring, and then react at 70°C for 1.5 hours, stop stirring, stand and separate layers, the upper oily liquid is the desired product, based on sodium chloroacetate The yield was 92.6%.

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Abstract

The invention discloses an N-alkylhydroxyoxime acid-O-alkyl thiamine compound collecting agent. The collecting agent comprises an N-alkylhydroxyoxime acid fragment and an O-alkyl thiamine fragment; the alkyl group con-jointed with N is preferentially selected from alkylene of C1-C12; and alkyl con-jointed with O is alkyl of C1-C16. In addition, the invention further discloses a preparing method of the collecting agent and application of the collecting agent in metallic mineral. The N-alkylhydroxyoxime acid-O-alkyl thiamine compound collecting agent is applied to an N-alkylhydroxyoxime acid-O-alkyl thiamine compound to serve as a flotation collecting agent, and valuable metallic mineral is efficiently recycled from the metallic mineral. A thionocarbamates functional group and a hydroximic acid functional group in the flotation collecting agent have the effect of metal ion synergy chelation, and the effect on the metallic mineral interface metal ions can be strengthened; and at the same time, the flotation collecting agent contains double dewatering functional groups, mineral grain dewatering can be strengthened, and the flotation recovering rate of the metallic mineral in metal ore is strengthened.

Description

technical field [0001] The invention relates to a collector with a new structure—N-alkyl hydroxamic acid-O-hydrocarbyl thiourethane compound, its preparation and its application method in metal ore flotation. Background technique [0002] Flotation is the most important method for recovering metal minerals from metal ores. Flotation collectors selectively regulate the hydrophobicity of mineral interfaces, which is one of the key technologies for the separation and extraction of valuable mineral components by flotation. With the increasingly poor, fine and miscellaneous metal mineral resources, the flotation recovery of metal minerals is more difficult. The development of new high-efficiency flotation collectors and the improvement of the hydrophobicity of mineral particles are of great significance for improving the comprehensive recovery rate of metal minerals. [0003] Thiurethane compounds and hydroxamic acid compounds have become important metal mineral flotation collect...

Claims

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Application Information

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IPC IPC(8): B03D1/012B03D101/02B03D103/02
CPCB03D1/012B03D2201/02B03D2203/02
Inventor 刘广义胡哲刘胜钟宏王帅曹占芳
Owner CENT SOUTH UNIV
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