Preparation method, application and using process of floating agent prepared from drainage oil

A flotation agent, waste oil technology, applied in flotation, solid separation and other directions, can solve the problem of no research report, avoid environmental pollution, reduce the loss of concentrate, and improve the effect of mineral flotation index

Active Publication Date: 2014-08-13
鄂尔多斯市君致清环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] After reviewing a large amount of literature, there is no research report on mixed fatty acids prepared from waste oil as flotation agents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 prepares collector I

[0051] Centrifuge the waste oil to remove suspended solids, add a certain amount of water to remove colloidal substances, dry and dehydrate, bleach with clay, and then add sodium hydroxide for hydrolysis. The reaction temperature is 60-80°C, the reaction time is 60 minutes, and the amount of sodium hydroxide It is 2% of the quality of gutter oil. After the obtained hydrolyzate is cooled, it is extracted with petroleum ether, wherein the upper layer is unsaponifiable, and the lower layer is saponifiable; the saponifiable in the lower layer is added with a certain amount of hydrochloric acid with a mass concentration of 10%. Solution, so that the weight ratio of mixed fatty acid and mixed fatty acid sodium salt in the product is 1:1, promptly obtains collector I.

Embodiment 2

[0052] Embodiment 2 prepares collector II

[0053] Centrifuge the waste oil to remove suspended matter, add a certain amount of water to remove colloidal substances, dry and dehydrate, bleach with clay, and then add sodium hydroxide for hydrolysis. The reaction temperature is 50-70°C, the reaction time is 70 minutes, and the amount of sodium hydroxide It is 4% of the quality of gutter oil. After the obtained hydrolyzate is cooled, it is extracted with petroleum ether, wherein the upper layer is unsaponifiable, and the lower layer is saponifiable; the saponifiable in the lower layer is added with a certain amount of hydrochloric acid with a mass concentration of 8%. Solution, so that the weight ratio of mixed fatty acid and mixed fatty acid sodium salt in the product is 1:10, promptly obtains collector I of the present invention.

Embodiment 3

[0054] Embodiment 3 prepares collector III

[0055] Centrifuge the waste oil to remove suspended solids, add a certain amount of water to remove colloidal substances, dry and dehydrate, bleach with clay, and then add sodium hydroxide for hydrolysis. The reaction temperature is 70-90°C, the reaction time is 30 minutes, and the amount of sodium hydroxide It is 5% of the quality of gutter oil. After the obtained hydrolyzate is cooled, it is extracted with petroleum ether, wherein the upper layer is unsaponifiable, and the lower layer is saponifiable; the saponifiable in the lower layer is added with a certain amount of hydrochloric acid with a mass concentration of 12%. Solution, so that the weight ratio of mixed fatty acid and mixed fatty acid sodium salt in the product is 10:1, namely obtain collector III.

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PUM

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Abstract

The invention relates to a preparation method, application and using process of a floating agent prepared from drainage oil, wherein the preparation method of the floating agent comprises the following steps of: (a) purifying the drainage oil; (b) carrying out hydrolysis reaction on the purified drainage oil obtained from the step (a) to obtain the floating agent used for floating ores. When the floating agent used by the invention and prepared from the drainage oil is used as a collecting agent for floating the ores, the selectivity of the collecting agent can be enhanced, and the technical indicator and the economic indicator of flotation are enhanced favorably; and in addition, because a raw material used for the preparation of the floating agent is the drainage oil, the technical scheme provided by the invention has important significance on the aspects of preventing environmental pollution, simplifying production process, reducing food security threat, and the like.

Description

technical field [0001] The invention relates to a preparation method, application and application process of a flotation agent prepared from waste oil, in particular to the use and method of the flotation agent prepared from waste oil as a collector for flotation of minerals. Background technique [0002] Fatty acid compounds have important applications as collectors in mineral flotation. Commonly used fatty acid collectors include higher fatty acids and their sodium salts, such as: oleic acid, sodium oleate, and by-products from animal and plant and petroleum processing, Products containing a variety of fatty acids extracted from papermaking waste liquid, such as animal and vegetable fatty acids (soap), naphthenic acid (soap), oxidized paraffin wax (soap), tall oil (soap) and their refined products. [0003] Because the fatty acid has a very active carboxyl functional group, it can capture many minerals. Fatty acid compounds, as anion collectors, have been widely used in m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/008B03D1/00B03D101/02B03D103/02
Inventor 王化军马鸿志于慧梅高明刘旭苏伟何秋慧葛鹏仵晓丹
Owner 鄂尔多斯市君致清环境科技有限公司
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