Method for using collector prepared from illegal cooking oil in fluorite flotation

A collector and waste oil technology, applied in the field of fluorite flotation, can solve the problem of lack of research reports, and achieve the effects of improving technical indicators, reducing the loss of concentrates, and reducing production costs

Active Publication Date: 2011-11-16

BEIJING JUNZHIQING SCI & TECH

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AI-Extracted Technical Summary

Problems solved by technology

[0011] After reviewing a large amount of literature, there is no researc...

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Abstract

The invention relates to a method for using a collector prepared from illegal cooking oil in fluorite flotation. The collector is prepared by the following steps: (a) purifying and extracting illegal cooking oil; and (b) subjecting the purified and extracted illegal cooking oil obtained by the step (a) to a hydrolysis reaction and thus obtaining the collector for use in ore floatation. When the collector prepared from the illegal cooking oil, which is used in the invention, is used in fluorite flotation, the selectivity of the collector is improved, and the technical index and economic index of the flotation can be improved. As the illegal cooking oil is used as the raw material for preparing the collector, the technical scheme adopted by the invention has a great significance for avoiding environment pollution, simplifying production process, reducing food safety threats and the like.

Application Domain

Flotation

Technology Topic

ChemistryCooking oil +5

Examples

Experimental program(5)

Example Embodiment

[0061] Example 1 Preparation of collector I

[0062] Centrifuge the waste oil to remove suspended solids, add a certain amount of water to remove colloidal substances, dry and dehydrate, decolorize the 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 the waste oil. After cooling the obtained hydrolysate, it is extracted with petroleum ether. The upper layer is non-saponifiable and the lower layer is saponified; remove the saponified from the lower layer and add 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 to obtain collector I.

Example Embodiment

[0063] Example 2 Preparation of collector II

[0064] Centrifuge the waste oil to remove suspended solids, add a certain amount of water to remove colloidal substances, dry and dehydrate, decolorize the 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 the waste oil. After cooling the obtained hydrolysate, it is extracted with petroleum ether. The upper layer is non-saponifiable and the lower layer is saponified. The saponified product from 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 to obtain the collector II of the present invention.

Example Embodiment

[0065] Example 3 Preparation of Collector III

[0066] Centrifuge the waste oil to remove suspended solids, add a certain amount of water to remove colloidal substances, dry and dehydrate, decolorize the 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 the waste oil. After cooling the obtained hydrolysate, it is extracted with petroleum ether. The upper layer is non-saponifiable and the lower layer is saponified; the saponified substance from 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 to obtain collector III.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

High recovery rate

Method for using collector prepared from illegal cooking oil in fluorite flotation

A collector and waste oil technology, applied in the field of fluorite flotation, can solve the problem of lack of research reports, and achieve the effects of improving technical indicators, reducing the loss of concentrates, and reducing production costs

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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