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Aid-grinding and oil absorption steel slag composite modifier and preparation method thereof

A technology of composite modifier and steel slag, which is applied in the field of steel slag modifier, can solve the problems of poor grindability and poor compatibility of steel slag, and achieve the effects of improving oil absorption value, improving grinding effect, and simple preparation method

Active Publication Date: 2019-05-03
SHANGHAI BAOTIAN NOVEL BUILDING MATERIALS +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor grindability and poor compatibility of the existing steel slag, the present invention provides a grinding aid-oil-absorbing steel slag composite modifier and its preparation method, using organic alcohol amine, silane coupling agent and organic acid to compound , and control the stirring temperature, stirring speed and stirring time to prepare a grinding aid-oil-absorbing steel slag composite modifier, which has good wear resistance and oil absorption performance, and is used for steel slag grinding to promote its formation of superfine powder with high oil absorption value

Method used

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  • Aid-grinding and oil absorption steel slag composite modifier and preparation method thereof
  • Aid-grinding and oil absorption steel slag composite modifier and preparation method thereof

Examples

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Effect test

Embodiment 1

[0023] Taking the preparation of product 100g of the present invention as an example, the components used and the quality thereof are:

[0024]

[0025]

[0026] First, mix ethylene glycol, triethanolamine and 1 / 4 of the amount of absolute ethanol, and then use a constant temperature magnetic stirrer to stir at a temperature of 20°C at a speed of 800r / min for 70min to obtain an ethylene glycol-triethanolamine mixed solution. Secondly, after mixing the silane coupling agent, oxalic acid and 3 / 4 of the amount of absolute ethanol, use a constant temperature magnetic stirrer to stir at a temperature of 30°C at a speed of 1200r / min for 110min to obtain a silane coupling agent-oxalic acid mixture. Finally, after mixing the ethylene glycol-triethanolamine mixed solution with the silane coupling agent-oxalic acid mixed solution, the steel slag composite modifier was obtained by using a constant temperature magnetic stirrer at a temperature of 25° C. at a speed of 500 r / min to sti...

Embodiment 2

[0028] Taking the preparation of product 100g of the present invention as an example, the components used and the quality thereof are:

[0029]

[0030] First, mix ethylene glycol, triethanolamine and 1 / 4 of the amount of absolute ethanol, and then use a constant temperature magnetic stirrer to stir at a temperature of 35°C at a speed of 600r / min for 90min to obtain an ethylene glycol-triethanolamine mixed solution. Secondly, after mixing the silane coupling agent, oxalic acid and 3 / 4 of the amount of absolute ethanol, use a constant temperature magnetic stirrer to stir at a temperature of 25°C at a speed of 600r / min for 70min to obtain a silane coupling agent-oxalic acid mixture. Finally, the ethylene glycol-triethanolamine mixed solution was mixed with the silane coupling agent-oxalic acid mixed solution, and stirred with a constant temperature magnetic stirrer at a temperature of 30° C. at a speed of 800 r / min for 20 minutes to obtain a steel slag composite modifier.

Embodiment 3

[0032] Taking the preparation of product 100g of the present invention as an example, the components used and the quality thereof are:

[0033]

[0034]

[0035] First, mix ethylene glycol, triethanolamine and 1 / 4 of the amount of absolute ethanol, and then use a constant temperature magnetic stirrer to stir at a temperature of 30°C at a speed of 400r / min for 60min to obtain an ethylene glycol-triethanolamine mixed solution. Next, after mixing the silane coupling agent, oxalic acid and 3 / 4 of the amount of absolute ethanol, use a constant temperature magnetic stirrer to stir at a temperature of 35°C at a speed of 1000r / min for 90min to obtain a silane coupling agent-oxalic acid mixture. Finally, after mixing the ethylene glycol-triethanolamine mixed solution with the silane coupling agent-oxalic acid mixed solution, the steel slag composite modifier was obtained by stirring with a constant temperature magnetic stirrer at a temperature of 20° C. at a speed of 700 r / min for...

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Abstract

The invention discloses an aid-grinding and oil absorption steel slag composite modifier and a preparation method thereof. The aid-grinding and oil absorption steel slag composite modifier is preparedfrom the following components in percentage by weight: 1.0%-2.0% of ethanediol, 1.0%-2.0% of triethanolamine, 4.0%-8.0% of silane coupling agent, 1.0%-8.0% of oxalic acid and 85.5%-92.5% of anhydrousethanol. Stirring is conducted for 50-100 min at 20-35 DEG C or below and at the rotating speed of 400-800 r / min, thus ethanediol and triethanolamine mixed liquid is obtained, stirring is conducted for 60-120 min at 20-35 DEG C or below and at the rotating speed of 600-1200 r / min, thus silane coupling agent and oxalic acid mixed liquid is obtained, the ethanediol and triethanolamine mixed liquidand the silane coupling agent and oxalic acid mixed liquid are mixed and then stirred for 10-20 min at 20-35 DEG C or below and at the rotating speed of 500-1000 r / min, and thus the aid-grinding and oil absorption steel slag composite modifier is obtained. The problems of poor grindability and poor compatibility of existing steel slag are solved, ultra-fine pulverization of the steel slag is improved, the oil absorption value of the steel slag is increased, and high value-added application of the steel slag is achieved.

Description

technical field [0001] The invention belongs to the field of steel slag modifiers, and in particular relates to a grinding aid-oil-absorbing steel slag composite modifier and a preparation method thereof. Background technique [0002] Steel slag is solid waste produced in the steelmaking process, accounting for about 15% to 20% of steelmaking output. The main mineral phase of steel slag is a solid solution formed by tricalcium silicate, dicalcium silicate, calcium magnesium olivine, calcium aluminate ferrite and oxides of silicon, magnesium, iron, manganese and phosphorus, and also contains a small amount of free calcium oxide and metal iron etc. The existence of the above mineral phases leads to poor grindability and poor compatibility of steel slag, which greatly limits the application of steel slag, resulting in a large amount of steel slag stockpiling, which not only takes up space, but also pollutes the surrounding environment and groundwater. How to modify the propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/06C04B5/06
CPCY02W30/50
Inventor 王林龙红明黄华张浩
Owner SHANGHAI BAOTIAN NOVEL BUILDING MATERIALS
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