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Nickel-slag porous microcrystalline material and preparation method thereof

A technology of microcrystalline material and nickel slag, which is applied in the field of nickel slag porous microcrystalline material and its preparation, can solve problems such as low mechanical strength, and achieve the effects of reducing production cost and reducing pollution

Active Publication Date: 2014-04-09
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foam glass is light (≤500kg / m 3 ), heat preservation, but the mechanical strength is low, so it is suitable to be used as thermal insulation material rather than as wall load-bearing material

Method used

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  • Nickel-slag porous microcrystalline material and preparation method thereof
  • Nickel-slag porous microcrystalline material and preparation method thereof
  • Nickel-slag porous microcrystalline material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] (1) Preparation of basic glass

[0061] Crush the cold nickel slag and various auxiliary materials, then pass through a 40-mesh sieve, and accurately weigh 60.0 kg of cold nickel slag, 8.0 kg of calcium carbonate, 9.0 kg of aluminum oxide, 18.0 kg of silicon dioxide, and 9.0 kg of Kilograms of sodium carbonate, 3.0 kilograms of potassium carbonate. Put various raw materials into a mixer or agitator, add 5.0% water of the total weight of the raw materials, and stir evenly to make a basic glass batch. Melt the basic glass batch material in the range of 1485-1520°C for 2.0-4.0h to make a glass melt, and then keep it in the range of 1350-1370°C for 1.0-3.0h to homogenize and clarify the glass liquid to obtain a high temperature molten state glass melt (such as figure 1 shown).

[0062] Or crush various auxiliary materials, then pass through a 40-mesh sieve, and accurately weigh 8.0 kg of calcium carbonate, 9.0 kg of aluminum oxide, 18.0 kg of silicon dioxide, 9.0 kg of s...

Embodiment 2

[0073] (1) Preparation of basic glass

[0074] Crush the cold nickel slag and various auxiliary materials, then pass through a 40-mesh sieve, and accurately weigh 55.0 kg of cold nickel slag, 8.0 kg of calcium carbonate, 2.0 kg of calcium fluoride, 9.0 kg of aluminum oxide, and 2.0 kg of Kg sodium nitrate, 1.0 kg barium carbonate, 18.0 kg silicon dioxide, 9.0 kg sodium carbonate, 3.0 kg potassium carbonate. . Put various raw materials into a mixer or agitator, add 5.0% water of the total weight of the raw materials, and stir evenly to make a basic glass batch. Melt the basic glass batch material in the range of 1470-1500°C for 2.0-4.0h to make a glass melt, and then keep it in the range of 1300-1350°C for 1.0-3.0h to homogenize and clarify the glass liquid to obtain a high temperature molten state glass melt (such as figure 1 shown).

[0075] Or crush various auxiliary materials, then pass through a 40-mesh sieve, and accurately weigh 8.0 kg of calcium carbonate, 2.0 kg of...

Embodiment 3

[0086] (1) Preparation of basic glass

[0087] Crush the cold nickel slag and various auxiliary materials, then pass through a 40-mesh sieve, and accurately weigh 65.0 kg of cold nickel slag, 7.0 kg of calcium carbonate, 8.5 kg of aluminum oxide, 15.5 kg of silicon dioxide, and 9.0 kg of Kg of sodium carbonate, 3.5 kg of potassium carbonate, 2.0 kg of sodium nitrate, 0.5 kg of zinc oxide. Put various raw materials into a mixer or agitator, add 5.0% water of the total weight of the raw materials, and stir evenly to make a basic glass batch. Melt the basic glass batch material in the range of 1485-1520°C for 2.0-4.0h to make a glass melt, and then keep it in the range of 1350-1370°C for 1.0-3.0h to homogenize and clarify the glass liquid to obtain a high temperature molten state glass melt (such as figure 1 shown).

[0088] Or crush various auxiliary materials, then pass through a 40-mesh sieve, and accurately weigh 7.0 kg of calcium carbonate, 8.5 kg of aluminum oxide, 15.5 ...

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Abstract

The invention relates to a nickel-slag porous microcrystalline material and a preparation method of the nickel-slag porous microcrystalline material. Smelting ferro-nickel waste residues are taken as main raw materials, and additives such as SiO2, CaCO3, Na2CO3, ZnO and K2CO3, and a clarifying agent are taken as auxiliary materials. The nickel-slag porous microcrystalline material disclosed by the invention is lightweight, insulating, abrasion-resistant, and resistant to acid and alkali corrosion, has good machinability, can be widely applied to heat insulation and preservation of a pipeline, a storage tank and a heat exchange system in the fields such as chemical engineering, metallurgy, architectural ornament, petroleum, mine and machinery, and a composite heat-insulation system and a soundproof and acoustic absorption system working under a special condition.

Description

technical field [0001] The present invention relates to a porous microcrystalline material, especially to a nickel slag porous microcrystalline material prepared by utilizing nickel slag discharged during the nickel-iron alloy smelting process and a preparation method thereof. A porous material that is resistant to acid and alkali corrosion and has good machinability, can utilize industrial solid waste nickel slag in large quantities, and the product has excellent physical and mechanical properties and stable chemical properties. Background technique [0002] Nickel slag refers to a solid waste slag discharged during the smelting process of metal nickel and ferronickel, that is, the granulated slag formed after the melt formed in the smelting process is quenched by water. [0003] The discharge of nickel slag in our country is huge. The disposal or accumulation of a large amount of nickel slag not only occupies a large amount of land and increases economic costs, but also ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00C03C11/00C03C4/02
Inventor 曹建尉王志杜建亮
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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