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A kind of preparation method and application of modified waste oil for preparing grinding aid

A technology of waste oil and grinding aid, which is applied in the field of preparation of modified waste oil, can solve the problems of high cost and high price of grinding aid, and achieve the effect of improving cost performance, low cost and reducing usage

Active Publication Date: 2020-05-12
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, most of the components in the grinding aid are chemical synthetic materials, which are expensive, making the cost of the grinding aid also relatively high

Method used

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  • A kind of preparation method and application of modified waste oil for preparing grinding aid
  • A kind of preparation method and application of modified waste oil for preparing grinding aid
  • A kind of preparation method and application of modified waste oil for preparing grinding aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Firstly, the 31% pretreated waste oil that has been filtered and dehydrated is placed in a reaction vessel equipped with a condenser and a water separator, and 36.8% triethanolamine, 31% toluene and 1.2% concentrated sulfuric acid are added successively, continuously stirred and Heating to 125°C, when the temperature is stable, start timing, and react for 8 hours until no more water is formed in the reaction system, distill under reduced pressure and recover the dehydrating agent, cool to below 40°C, and obtain Modified Waste Oil 1.

Embodiment 2

[0036]First, 31% pretreated waste oil that has been filtered and dehydrated is placed in a reaction vessel equipped with a condenser and a water separator, and 37% triisopropanolamine, 31% ethyl acetate and 1.0% concentrated Sulfuric acid, keep stirring and heating to 125°C, after the temperature stabilizes, start timing, react for 8 hours, until no more water is generated in the reaction system, distill under reduced pressure and recover the dehydrating agent, cool to below 40°C, the modified Waste oil 2.

Embodiment 3

[0038] First, 31% pretreated waste oil that has been filtered and dehydrated is placed in a reaction vessel equipped with a condenser and a water separator, and 36.7% N-methyldiethanolamine, 31% toluene and 1.3% concentrated sulfuric acid are added in sequence , continuously stirring and heating to 125°C, when the temperature is stable, start timing, react for 8 hours, until no more water is generated in the reaction system, distill under reduced pressure and recover the dehydrating agent, cool to below 40°C, and obtain the modified trench oil3.

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PUM

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Abstract

The invention discloses modified hogwash oil used for grinding aids, a preparation method and applications thereof, and belongs to the field of building material additives, wherein the modified hogwash oil is a hogwash oil-alkanol amine modified product, and comprises one or a plurality of materials selected from a hogwash oil-triethanolamine modified material, a hogwash oil-triisopropanolamine modified material and a hogwash oil-N-methyldiethanolamine modified material. The invention further discloses the preparation method of the modified hogwash oil, and a grinding aid containing the modified hogwash oil, a preparation method and applications thereof. According to the present invention, the grinding aid can strong auxiliary grinding effect, can improve the strength of cement and the activity of metallurgical slag and fly ash, and has excellent effect; and the hogwash oil as the catering by-product has advantages of wide source and low cost, and can be used for preparing the grindingaid after being modified, such that the consumption of polyol amine and other chemical raw materials in the grinding aid can be reduced, the cost can be reduced, the performance price ratio of the grinding aid can be improved, and the high-added value utilization of the hogwash oil is provided so as to be worthy of promoting application.

Description

technical field [0001] The invention relates to the technical field of building material additives, in particular to a preparation method and application of modified waste oil for preparing grinding aids. Background technique [0002] Along with the development of my country's economy and society especially the tertiary industry, the catering industry also develops rapidly, needs to use a large amount of edible oils, thereby produces a large amount of waste oils and fats (being commonly called as " gutter oil "). Due to the poor management and supervision of waste oil recovery in my country, waste oil was illegally recycled and returned to the dining table, making the problem of waste oil once a social focus. The key to solving the problem of waste oil returning to the dining table is to develop a utilization method with considerable economic benefits, and use the profit lever to guide the waste oil to achieve the purpose of rational comprehensive utilization of resources. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/12C04B103/52
CPCC04B24/122C04B2103/52
Inventor 赵计辉阎培渝杨亮
Owner TSINGHUA UNIV