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A kind of steel slag-based mesoporous material and preparation method thereof

A technology of steel slag-based mesoporous and steel slag-based glue, which is applied to ceramic products, other household utensils, household utensils, etc., can solve the problem of no literature and patent reports on the preparation of mesoporous materials from solid waste steel slag, and promote recycling The effect of economic development, simple and easy process, and no discharge of three wastes

Inactive Publication Date: 2015-10-21
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In summary, the applicant did not find any literature or patent reports on the preparation of mesoporous materials using solid waste steel slag through a large number of literature searches and novelty searches of domestic and foreign patents.

Method used

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  • A kind of steel slag-based mesoporous material and preparation method thereof
  • A kind of steel slag-based mesoporous material and preparation method thereof
  • A kind of steel slag-based mesoporous material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0061] Accurately weigh 1400g of steel slag as the basis of measurement (100%); adopt the external mixing method, the dosage of silica fume is 10% of the mass of steel slag, the dosage of solid sodium hydroxide is 4% of the mass of steel slag, the ratio of water to steel slag The ratio is 0.27.

[0062] Dissolve solid sodium hydroxide in water at room temperature to form an aqueous sodium hydroxide solution. Pour the aqueous solution into a double-rotation and double-speed slurry mixer, then add the pre-mixed steel slag powder and silica fume powder for mixing to form a uniform slurry, and put the slurry into a 40mm×40mm×160mm steel triplex Forming in the mold, put the triple mold into a plastic film sealed bag, and cure it at 60°C for 6 hours in an incubator. After taking it out, cure it at room temperature for 1 day, remove the mold, and cure it in the curing room for another 2 days to obtain a steel slag-based cementitious material block. body, its compressive strength is ...

Embodiment 2

[0067] Accurately weigh steel slag 1400g, take this as the basis of measurement (100%); adopt the external mixing method, the dosage of silica fume is 10% of the quality of steel slag, the dosage of solid sodium hydroxide is 4% of the quality of steel slag, the quality of acrylic resin emulsion It is 0.1% of the steel slag mass, and the ratio of water to steel slag mass is 0.27. Dissolve solid sodium hydroxide in water at room temperature to form an aqueous sodium hydroxide solution. Pour the sodium hydroxide aqueous solution and acrylic resin emulsion into a double-rotation double-speed slurry mixer, then add the pre-mixed steel slag powder and silica fume powder for mixing to form a uniformly mixed slurry, and fill the slurry into a 40mm× Molded in a 40mm×160mm steel triplex mold, put the triplex mold into a plastic film sealed bag, and cure for 6 hours in an incubator at 60°C. After taking it out, remove the mold after curing at room temperature for 1 day, and then cure at ...

Embodiment 3

[0072] Accurately weigh 1400g of steel slag as the basis of measurement (100%); adopt the external mixing method, the dosage of silica fume is 10% of the quality of steel slag, the dosage of solid sodium hydroxide is 4% of the quality of steel slag, the quality of acrylic resin emulsion It is 5% of the steel slag mass, and the ratio of water to steel slag mass is 0.30. Dissolve solid sodium hydroxide in water at room temperature to form an aqueous sodium hydroxide solution. Pour the sodium hydroxide aqueous solution and acrylic resin emulsion into a double-rotation double-speed slurry mixer, then add the pre-mixed steel slag powder and silica fume powder for mixing to form a uniformly mixed slurry, and fill the slurry into a 40mm× Molded in a 40mm×160mm steel triple mold, put the triple mold into a plastic film sealed bag, take it out after curing for 6 hours in an incubator at 60°C, remove the mold after curing at room temperature for 1 day, and then cure for 2 days under nat...

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Abstract

The invention discloses a steel slag-based mesoporous material and a preparation method thereof. The prepared steel slag-based mesoporous material is prepared by the following processes: putting raw materials, including steel slag powder, silica fume, sodium hydroxide and a pore former acrylic resin emulsion into a stirring device to stir; molding by a mold; conserving and roasting, wherein based on the mass of the steel slag, the silica fume accounts for 10% of the steel slag, sodium hydroxide accounts for 4% of the steel slag, the acrylic resin emulsion accounts for 0.1-5% of the steel slag, and the ratio of the adding amount of water to the mass of the steel slag is 0.27 to 0.30. Compared with a sample free of the pore former, the mesoporous volume of the sample is increased by 226.05% after the optimal amount of pore former is added, the steel slag can be completely utilized once, the high value-added mesoporous material is obtained, the whole technological process is simple, any treatment on the steel slag is not needed, the steel slag-based mesoporous material is free of emission of three wastes and green, and controllable preparation of the mesoporous material can be achieved.

Description

technical field [0001] The invention belongs to the field of resource recycling of solid waste and preparation of new materials, and in particular relates to a steel slag-based mesoporous material and a preparation method thereof. Background technique [0002] Steel slag is a kind of solid waste discharged during the steelmaking process, and about 10-20% of steel slag is produced for every ton of crude steel produced [1] . In 2013, the output of crude steel was 779 million tons, and the steel slag produced was about 117 million tons [2] . Since steel slag is a kind of inert slag, the utilization rate of its high added value is very limited. Therefore, a large amount of steel slag accumulated for a long time not only occupies a large amount of fertile land, but also is exposed to the sun and rain, causing serious environmental pollution. Using it as a raw material for preparing chemically excited steel slag-based cementitious materials is one of the effective ways for lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00
Inventor 张耀君康乐王磊磊张力张科杨梦阳柴倩
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY