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Hydroximic acid sulfonic acid compound as well as preparation method and application thereof

A hydroxamic acid sulfonic acid, the technology of hydroxamic acid sulfonic acid, applied in the direction of sulfonic acid preparation, organic chemistry, flotation, etc., can solve the problem of insufficient performance of fatty acid collectors, weak ability to resist calcium and magnesium ions, and chemical consumption Large and other problems, to achieve excellent flotation effect, less reagent consumption, excellent flotation effect

Active Publication Date: 2022-02-18
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of insufficient low-temperature flotation performance of fatty acid collectors, weak anti-calcium and magnesium ions, and large consumption of reagents, the existing technology mainly solves the problems through the compounding of reagents. For example, it is possible to develop a Collectors, undoubtedly have important research significance and application value

Method used

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  • Hydroximic acid sulfonic acid compound as well as preparation method and application thereof
  • Hydroximic acid sulfonic acid compound as well as preparation method and application thereof
  • Hydroximic acid sulfonic acid compound as well as preparation method and application thereof

Examples

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Embodiment 1

[0060] The present embodiment provides a hydroxamic acid sulfonic acid compound: 1-(hydroxyamino)-1-oxopentadecane-2-sulfonic acid, the preparation process of which is as follows:

[0061] Mix 20.0g sodium 1-methoxy-1-oxopentadecane-2-sulfonate and 15mL 20% hydroxylamine solution-1, then add 5.0g NaOH catalyst, heat to 35°C, react for 12 hours, add concentrated sulfuric acid to adjust pH to 7, suction filtration and distilled water to remove inorganic salts and raw material sulfonates to obtain 15.4 g of a mixture of 1-(hydroxyamino)-1-oxopentadecane-2-sulfonic acid, and the mixture was calibrated using Kjeldahl method N content, the yield was 52.6%.

Embodiment 2

[0063] The present embodiment provides a hydroxamic acid sulfonic acid compound: 1-(hydroxyamino)-1-oxohexadecane-2-sulfonic acid, the preparation process of which is as follows:

[0064] Mix 20.0 g of potassium 1-methoxy-1-oxohexadecane-2-sulfonate and 4 mL of 50% hydroxylamine, then add 7.0 g of KOH catalyst, heat to 50 ° C, react for 6 hours, and finally add concentrated sulfuric acid to adjust the pH to 7. Suction filtration and use distilled water to remove inorganic salts and raw material sulfonates to obtain 14.3 g of a mixture of 1-(hydroxyamino)-1-oxohexadecane-2-sulfonic acid, and use Kjeldahl method to demarcate N in the mixture content, the yield was 57.8%.

Embodiment 3

[0066] The present embodiment provides a hydroxamic acid sulfonic acid compound: 1-(hydroxyamino)-1-oxotetradecane-2-sulfonic acid, the preparation process of which is as follows:

[0067] Mix 20.0 g of sodium 1-methoxy-1-oxotetradecane-2-sulfonate and 5 mL of 40% hydroxylamine, then add 6.5 g of NaOH catalyst, heat to 55°C, react for 6 hours, and finally add concentrated sulfuric acid to adjust pH to 7. Suction filtration, and use distilled water to remove inorganic salts and raw material sulfonates to obtain 22.9 g of a mixture of 1-(hydroxyamino)-1-oxotetradecane-2-sulfonic acid and use Kjeldahl method to calibrate N in the mixture content, the yield was 72.1%.

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Abstract

The invention relates to a hydroximic acid sulfonic acid compound as well as a preparation method and application thereof. The hydroximic acid sulfonic acid compound has a structural formula shown as a formula (I) in the description. The hydroximic acid sulfonic acid compound provided by the invention not only has an excellent flotation effect at a low temperature, but also is low in reagent consumption, can be used as a collecting agent to realize flotation of phosphine ore, fluorite and scheelite in a low-temperature and high-calcium-magnesium environment, and has an excellent flotation effect.

Description

technical field [0001] The invention relates to the field of flotation reagents and preparation thereof, and more particularly, to a hydroxamic acid sulfonic acid compound and a preparation method and application thereof. [0002] technical background [0003] The fatty acid molecule has a carboxylic acid group (-COOH), which can form a chelate with Ca, Fe, Ma and other ions, and is an important collector of oxide ores and non-metallic minerals. Common fatty acid collectors include oleic acid (9-octadecenoic acid), oxidized paraffin soaps (731 and 733), and mixed animal and vegetable oleic acid (C 12-20 ). However, fatty acid collectors have the disadvantages of poor flotation effect under low temperature environment, insufficient resistance to calcium and magnesium ions and large consumption of chemicals. [0004] Li Donglian (Solution chemical analysis of the effect of calcium and magnesium ions on the flotation of collophosphate rock [J]. Mineral Protection and Utilizati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/17C07C303/02B03D1/012B03D101/02B03D103/06B03D103/04
CPCC07C309/17B03D1/012B03D2201/02B03D2203/06B03D2203/04Y02P10/20
Inventor 李方旭周晓彤林日孝
Owner INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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