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Method for preparing plant fatty acid and gallate collector

A plant fatty acid and gallic technology, applied in solid separation, flotation and other directions, can solve the problems of poor flotation foam fluidity, low selectivity of phosphorus minerals, and increased difficulty in industrialization, so as to reduce the cost of beneficiation and improve the flotation efficiency. , the effect of low price

Inactive Publication Date: 2019-09-27
YIDU XINGFA CHEM COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In phosphate rock flotation, the existing positive flotation collectors have low selectivity to phosphorus minerals, resulting in poor impurity removal effect; flotation foam has poor fluidity, resulting in the foam products from flotation being transported to the next section of work Hindered; water solubility is not strong, leading to disadvantages such as large dosage
Many factors have led to high cost of mineral dressing agents and increased difficulty in industrialization

Method used

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  • Method for preparing plant fatty acid and gallate collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) Weigh 36g of rapeseed oil fatty acid with an iodine value of 125 and 1g of gallic acid (mass ratio 36:1) in a flask, then put the flask into a constant temperature oil bath with magnetic stirring, start stirring and heat up to 90°C , carry out esterification reaction, react for 90min, obtain rapeseed oil fatty acid gallate, cool down to 80°C for later use

[0022] 2) Weigh again 24g of 15% sodium hydroxide solution, control the temperature at 80°C, weigh 20g of the obtained rapeseed oil fatty acid gallate and put it into a constant temperature oil bath with magnetic stirring, start stirring and slowly add the prepared saponification reaction, the saponification reaction temperature is controlled at 75°C, the stirring time is 10min, and the obtained rapeseed oil fatty acid gallate soap is obtained after cooling.

[0023] 3) Weigh again 25 g of rapeseed oil fatty acid gallate soap and 0.5 g of tributyl phosphate, stir at 60° C. for 15 min, and obtain a compound collect...

Embodiment 2

[0025] 1) Weigh 36g of soybean oil fatty acid with an iodine value of 120 and 2g of gallic acid (mass ratio 36:2) in a flask, then put the flask into a constant temperature oil bath with magnetic stirring, start stirring and heat up to 130°C, and carry out Esterification reaction, reaction 105min, obtain soybean oil fatty acid gallate, cool to 80 ℃ for later use

[0026] 2) Weigh again 24g of 15% sodium hydroxide solution, control the temperature at 80°C, weigh 20g of the obtained soybean oil fatty acid gallate, put it into a constant temperature oil bath with magnetic stirring, start stirring and slowly add the prepared hydrogen The sodium oxide solution is used for saponification reaction, the saponification reaction temperature is controlled at 95° C., the stirring time is 20 minutes, and soybean oil fatty acid gallate soap is obtained after cooling.

[0027] 3) Weigh again 25 g of soybean oil gallate soap and 1 g of tributyl phosphate, stir at 60° C. for 15 minutes, and ob...

Embodiment 3

[0029] 1) Weigh 36g of cotton oil fatty acid with an iodine value of 135 and 4g of gallic acid (mass ratio 36:1) in a flask, then put the flask into a constant temperature oil bath with magnetic stirring, start stirring and heat up to 100°C, Esterification reaction was carried out for 45 minutes to obtain cotton oil fatty acid gallate, and the temperature was lowered to 80° C. for later use.

[0030] 2) Weigh 24g of 15% sodium hydroxide solution, control the temperature at 80°C, weigh 20g of the obtained cotton oil fatty acid gallate, put it into a constant temperature oil bath with magnetic stirring, start stirring and slowly add the prepared Sodium hydroxide solution, carry out saponification reaction, saponification reaction temperature is controlled at 85 ℃, stirring time is 15min, and what obtains after cooling is cotton oil fatty acid gallate soap.

[0031] 3) Weigh again 25 g of cotton oil fatty acid gallate soap and 2 g of tributyl phosphate, stir at 60° C. for 15 min,...

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Abstract

The invention relates to a method for preparing a plant fatty acid and gallate collector, belonging to the technology of collophane flotation. The collector is characterized in that plant fatty acid and gallic acid are heated and stirred, a sodium hydroxide aqueous solution is added for saponification, and the mixture is uniformly stirred to obtain plant fatty acid gallate soap, then the plant fatty acid gallate soap is mixed with tributyl phosphate, and uniform stirring is carried out to obtain the plant fatty acid gallate soap compounding collector. The collector disclosed by the invention not only has good solubility, but also has strong selective collection ability for medium and low grade collophane, and has the advantages of good adaptability to temperature, good salt tolerance, good foam fluidity and low dosage of agents. In addition, the method disclosed by the invention has the advantages of good stability, simple medicament preparation method and the like, and can be widely applied in the collophane ore beneficiation.

Description

technical field [0001] The invention relates to a compound collector for phosphate rock flotation, in particular to a preparation method of the plant fatty acid gallate soap compound collector. Background technique [0002] Phosphate rock is an essential basic raw material for the production of phosphate fertilizers and fine phosphorus chemical products, and is an important strategic mineral resource in my country. my country has abundant reserves of phosphate rock resources, but most of them are medium and low-grade phosphate rocks with low phosphorus content. The high-grade phosphate rocks that can be directly used can only be mined for more than ten years. Due to the complex mosaic relationship of various minerals, fine mosaic particle size, poor dissociation, and high content of silicate and carbonate minerals, the development and utilization of middle and low-grade collophosite is a worldwide problem. In phosphate rock flotation, the existing positive flotation collect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/008B03D101/02B03D103/06
CPCB03D1/008B03D2201/02B03D2203/06
Inventor 刘连坤郑光明刘鑫邹学勇沈维云童义隆李防陈慧王旭东孙桦林
Owner YIDU XINGFA CHEM COMPANY