Collophanite positive floatation collecting agent and preparation method thereof

A technology of positive flotation and colloidal phosphate rock, applied in flotation, solid separation, etc., can solve the problems of difficult to effectively remove silicate minerals, complex mineral intercalation relationship, low low temperature flotation efficiency, etc., to achieve a strong market Promotion value, good chemical stability, good flotation effect

Inactive Publication Date: 2013-10-16
WUHAN INSTITUTE OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The useful minerals in most collophosites in my country are fine in particle size, complex in distribution of minerals, high in harmful impurities, rich in mud, difficult to dissociate, and contain silicate and carbonate minerals

Method used

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  • Collophanite positive floatation collecting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A collophanite flotation collector and a preparation method thereof, the specific preparation steps are as follows:

[0034] (1) Weigh 40 grams of fatty acids with an iodine value of 135 (including 1.48 grams of hard fatty acid, 11.168 grams of oleic acid, 22.928 grams of linoleic acid, 1.044 grams of linolenic acid, and 3.38 grams of palmitic acid), and 3 grams of monoethanolamine. Heat to 80°C, mix in a flask, and then put into a constant temperature water bath with magnetic stirring, the reaction temperature is controlled at 80°C, and the reaction time is 90min.

[0035] (2) Weigh 4g of sodium hydroxide in a beaker and dissolve it in 16g of water, heat to 80°C, weigh 20g of the mixture obtained in step 1 with a beaker, heat to 80°C, slowly add the sodium hydroxide solution into the mixture and stir, The temperature was controlled at 80°C, and the saponification reaction time was 20 minutes.

[0036] (3) Weigh the surfactant OP-104g, and slowly add it to the reaction...

Embodiment 2

[0039] A collophanite flotation collector and a preparation method thereof, the specific preparation steps are as follows:

[0040] (1) Weigh 40.0 grams of iodine value 135 fatty acids (including 1.48 grams of hard fatty acid, 11.168 grams of oleic acid, 22.928 grams of linoleic acid, 1.044 grams of linolenic acid, 3.38 grams of palmitic acid) and 4.0 grams of monoethanolamine, and heat them separately to 85°C, mixed in a flask, and placed in a constant temperature water bath with magnetic stirring, the reaction temperature was controlled at 85°C, and the reaction time was 105 minutes.

[0041] (2) Weigh 5g of sodium hydroxide in a beaker and dissolve it in 15g of water, and heat to 75°C; weigh 20g of the mixture obtained in step 1 in a beaker, and heat to 75°C; slowly add the sodium hydroxide solution into the mixture and stir, the temperature The temperature is controlled at 75°C, and the saponification reaction time is 25 minutes.

[0042] (3) Weigh 4.44g of surfactant OP-...

Embodiment 3

[0045] A collophanite flotation collector and a preparation method thereof, the specific preparation steps are as follows:

[0046] (1) Weigh 40 grams of fatty acids with an iodine value of 135 (including 1.48 grams of hard fatty acid, 11.168 grams of oleic acid, 22.928 grams of linoleic acid, 1.044 grams of linolenic acid, and 3.38 grams of palmitic acid) and 2.5 grams of monoethanolamine, and heat them separately to 100°C, mixed in a flask, put into a constant temperature water bath with magnetic stirring, the temperature was controlled at 100°C, and the stirring time was 120min.

[0047] (2) Weigh 6g of sodium hydroxide in a beaker and dissolve it in 14g of water, heat to 85°C, weigh 20g of the mixture obtained in step 1 in a beaker, heat to 85°C, slowly add the sodium hydroxide solution into the mixture and stir, the temperature The temperature is controlled at 85°C, and the saponification reaction time is 20 minutes.

[0048] (3) Weigh 105g of surfactant OP-10, and slowl...

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Abstract

The invention belongs to a collophanite floatation technology and relates to a collophanite positive floatation collecting agent and a preparation method thereof. The collophanite positive floatation collecting agent is prepared by the following steps: (1) performing fatty acid amide esterification reaction on fatty acid with iodine value of 135 and monoethanolamine to obtain a mixture containing fatty acid and monoethanolamine; (2) performing saponification reaction on the mixture and a sodium hydroxide solution to obtain a saponification mixture; (3) adding a surfactant into the saponification mixture and stirring uniformly to obtain the collophanite positive floatation collecting agent, wherein the fatty acid comprises 3.7 percent of stearic acid C18:0, 27.92 percent of oleic acid C18:1, 57.32 percent of linoleic acid C18:2, 2.61 percent of linolenic acid C18:3 and 8.45 percent of palmitic acid C16; the surfactant is OP-10. The collecting agent has good solubility, good selectivity and strong collecting ability and can realize normal-temperature floatation of the collophanite. In addition, the collecting agent has the advantages of wide source of raw materials, low price, simple preparation process and wide popularization and application value.

Description

technical field [0001] The invention relates to the flotation technology of collophanite, in particular to a collector for positive flotation of collophanite and a preparation method thereof. Background technique [0002] Phosphate rock resource is an important non-metallic mineral resource and a strategic mineral resource related to my country's food security and national stability. my country's collophosite accounts for 85% of the total reserves of phosphate rock, and most of them are low-grade ores. Except for a few rich ores that can be directly used as raw materials for high-concentration phosphorus compound fertilizers, most of the phosphate rock must be enriched by ore dressing before it can be produced. Meet the production requirements of phosphoric acid and high-concentration phosphate fertilizer. Therefore, collophosite beneficiation plays a pivotal role in the development of phosphate rock. [0003] The useful minerals in most collophosites in my country are fine...

Claims

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Application Information

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IPC IPC(8): B03D1/014B03D101/02
Inventor 罗惠华汤家焰李成秀李伟陈炳炎池汝安
Owner WUHAN INSTITUTE OF TECHNOLOGY
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