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Chlorinated fatty acid tartaric ester flotation agent and preparation method thereof

A chlorinated fatty acid, tartrate technology, applied in the preparation of carboxylic acid halide, flotation, solid separation and other directions, can solve the problems of increased beneficiation cost, poor collection performance, unsatisfactory effect, etc., and achieves good flotation effect, Improved surface activity, low cost effect

Inactive Publication Date: 2013-05-01
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used carboxylic acid collectors are not easy to disperse at room temperature, the collection performance is poor, and the effect is not ideal. It is often necessary to heat the ore pulp, resulting in increased beneficiation costs.

Method used

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  • Chlorinated fatty acid tartaric ester flotation agent and preparation method thereof
  • Chlorinated fatty acid tartaric ester flotation agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of chlorinated fatty acid tartrate flotation agent, it comprises the steps:

[0023] Add 0.3 mol of soybean oil to a 1L beaker, mechanically stir and heat, add 200mL (15mol / L) of NaOH solution at 80°C, and keep warm at 90°C until no oily flowers appear in a small amount of product in cold water (that is, complete saponification, the time is about 3h), add 100mL of 80°C water and 30mL of NaOH solution (15mol / L) and continue the heat preservation reaction for half an hour to obtain a saponified product; add 0.4mol NaCl to the saponified product and let it stand for salting out for 5 hours, then take the saponified product in the upper layer and wash it with water (The amount of water should not be so much as to produce jelly), and the saponification product was obtained by suction filtration; the concentrated sulfuric acid was diluted with distilled water into a sulfuric acid solution with a concentration of 12mol / L, and 125mL (12mol / L) of sulfuric a...

Embodiment 2

[0034] The preparation method of chlorinated fatty acid tartrate flotation agent, it comprises the steps:

[0035] Add 0.6 mol of soybean oil to a 2L beaker, mechanically stir and heat, add 400mL (12mol / L) of NaOH solution at 90°C, and keep warm at 100°C until a small amount of product is put in cold water without oily flowers to obtain saponified product (i.e. completely saponified , the time is about 3h), add 80 ℃ water 200mL and NaOH solution 100mL (12mol / L) and continue to keep warm for half an hour to obtain saponified product; add 0.8mol NaCl to the saponified product and let it stand for salting out for 5 hours, take the upper saponified product and wash it with water (the amount of water should not be so much as to produce jelly) to obtain saponification product by suction filtration; the concentrated sulfuric acid is diluted with distilled water into a sulfuric acid solution with a concentration of 8mol / L, and the saponification product obtained is added to 400mL (8mol...

Embodiment 3

[0039] The preparation method of chlorinated fatty acid tartrate flotation agent, it comprises the steps:

[0040] Add 0.6 mol of soybean oil into a 2L beaker, mechanically stir and heat, add 400mL (12mol / L) of KOH solution at 80°C, and keep warm at 80°C until no oily flowers appear in a small amount of product in cold water (that is, the saponification is complete, the time is about 4h), add 200mL of 80°C water and 100mL of KOH solution (12mol / L) and continue the heat preservation reaction for half an hour to obtain a saponified product; add 0.8molNaCl to the saponified product and let it stand for salting out for 5 hours, then take the upper saponified product and wash it with water (the amount of water should not exceed As much as to produce jelly) to obtain saponified product by suction filtration; the concentrated sulfuric acid is diluted with distilled water into a sulfuric acid solution with a concentration of 8mol / L, and the saponified product is added with 400ml (8mol / ...

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Abstract

The invention relates to a flotation agent, in particular relating to a chlorinated fatty acid tartaric ester flotation agent and a preparation method thereof. The chlorinated fatty acid tartaric ester flotation agent is characterized by being prepared from the raw materials of soybean oil, strong base solution, concentrated sulfuric acid, chlorine, thionyl chloride, anhydrous tartaric acid and synergist with the molar ratio of 1.0: (9.8-12.3): (4.8-5.6): (5.5-6.4): (1.4-2.2): (1.7-2.2): (0.03-0.08). The flotation agent prepared by the method has good floating effect, small influence from temperature, easily obtained raw materials and low price.

Description

technical field [0001] The invention relates to a flotation agent and a preparation method thereof, in particular to a chlorinated fatty acid flotation agent and a preparation method thereof. Background technique [0002] There are many medium and low-grade phosphate rocks in my country, but few rich ores, with an average grade of only 17%. It is difficult to mine and select, and the cost of enrichment is high. Therefore, technical research on improving the grade of phosphate rock is imminent. A flotation method is used to improve the grade of phosphate rock. The commonly used carboxylic acid collectors are not easy to disperse at room temperature, have poor collection performance and unsatisfactory effects. It is often necessary to heat the ore pulp, resulting in increased beneficiation costs. It can be seen from this that it is of great significance to develop new collectors with good low temperature resistance and excellent flotation performance. In recent years, the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/008C07C69/65C07C67/14B03D103/04
Inventor 黄齐茂潘志权黄晶晶周红胡学雷
Owner WUHAN INSTITUTE OF TECHNOLOGY
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