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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 lack of research reports, and achieve the effects of avoiding environmental pollution, improving flotation technical indicators, and reducing food safety threats

Active Publication Date: 2011-11-16
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] Example 1 Preparation of collector I

[0051] The waste oil is centrifuged to remove suspended solids, a certain amount of water is added to remove colloidal substances, dried and dehydrated, the clay is decolorized, and then hydrolyzed by adding sodium hydroxide, the reaction temperature is 60-80 ° C, the reaction time is 60 minutes, the amount of sodium hydroxide It is 2% of the quality of waste oil, after cooling the obtained hydrolyzate, use petroleum ether extraction, wherein the upper layer is a non-saponifiable matter, and the lower layer is a saponified matter; taking the saponified matter of the lower layer and adding a certain amount of hydrochloric acid with a mass concentration of 10% solution, so that the weight ratio of the mixed fatty acid and the mixed fatty acid sodium salt in the product is 1:1, that is, the collector I is obtained.

Embodiment 2

[0052] Example 2 Preparation of collector II

[0053] The waste oil is centrifuged to remove suspended solids, a certain amount of water is added to remove colloidal substances, dried and dehydrated, the clay is decolorized, and then sodium hydroxide is added for hydrolysis. The reaction temperature is 50-70 ° C, the reaction time is 70 minutes, and the amount of sodium hydroxide For 4% of the quality of waste oil, after cooling the obtained hydrolyzate, use petroleum ether to extract, wherein the upper layer is a non-saponifiable matter, and the lower layer is a saponified matter; The saponification of the lower layer is added to a certain amount of hydrochloric acid with a mass concentration of 8%. solution, so that the weight ratio of the mixed fatty acid and the mixed fatty acid sodium salt in the product is 1:10, that is, the collector I of the present invention is obtained.

Embodiment 3

[0054] Example 3 Preparation of collector III

[0055] The waste oil was centrifuged to remove suspended solids, a certain amount of water was added to remove colloidal substances, dried and dehydrated, the clay was decolorized, and then sodium hydroxide was added for hydrolysis. The reaction temperature was 70-90 ° C, the reaction time was 30 minutes, and the amount of sodium hydroxide It is 5% of the quality of the waste oil, after cooling the obtained hydrolyzate, use petroleum ether extraction, wherein the upper layer is a non-saponifiable matter, and the lower layer is a saponified matter; The saponified matter of the lower layer is added a certain amount of mass concentration and is 12% hydrochloric acid solution, so that the weight ratio of the mixed fatty acid and the mixed fatty acid sodium salt in the product is 10:1, that is, the collector III is obtained.

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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 a flotation agent prepared from waste oil as a collector for flotation of minerals. Background technique [0002] As collectors, fatty acid compounds have important applications 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 various fatty acid components extracted from papermaking waste liquid, such as animal and vegetable fatty acids (soap), naphthenic acid (soap), oxidized paraffin (soap), tar oil (soap) and its refined products. [0003] Because fatty acids have very active carboxyl functional groups, they can capture many minerals. As anionic collectors, fatty acid compounds have been widely used in mine...

Claims

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Application Information

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Patent Type & Authority Applications(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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