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A kind of solid waste inorganic adhesive with oxidation-flame retardant-high shear force integration and its preparation method

A technology of high shear force and inorganic glue, applied in the field of solid waste resource utilization, can solve problems such as poor wearability, poor thermal stability, and poor long-term chemical stability, so as to reduce production costs, improve flame retardancy and shear force , Enhance the effect of market competitiveness and application range

Active Publication Date: 2021-05-28
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the common problems of poor grindability, easy agglomeration and incapable of large-scale and high added value in existing slag, dusty kiln slag, high-silicon bauxite, phosphorus slag and semi-dry desulfurization ash; Organic adhesives have poor thermal stability, poor long-term chemical stability, and the upper limit of temperature resistance is less than 80°C; existing inorganic adhesives have insufficient shear force; high-silicon bauxite, dust mud kiln slag and phosphorus slag Both have a certain flame retardancy, but there is a problem that they cannot be synergistically flame-retardant; the property of calcium sulfite in semi-dry desulfurization ash is unstable, and it needs to be oxidized to form stable calcium sulfate.

Method used

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  • A kind of solid waste inorganic adhesive with oxidation-flame retardant-high shear force integration and its preparation method
  • A kind of solid waste inorganic adhesive with oxidation-flame retardant-high shear force integration and its preparation method
  • A kind of solid waste inorganic adhesive with oxidation-flame retardant-high shear force integration and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0026]

[0027]

[0028] Described compound grinding aid is the mixture of glycerin, dehydrated alcohol and tripropylene glycol, and the mass ratio of glycerol, dehydrated alcohol and tripropylene glycol is 1:1:1, wherein glycerin, dehydrated alcohol and tripropylene glycol All are analytically pure; the main chemical components of the slag: MgO is 8.04%, Al 2 o 3 14.25%, SiO 2 27.21%, SO 3 2.43%, CaO 43.10%, TiO 2 1.59%, Fe 2 o 3 0.79%, MnO 0.38%, Na 2O is 1.08%, others are 1.13%, and its particle size is less than 5mm; the element content of the dust sludge kiln slag: Fe is 26.60%, Zn is 2.56%, Si is 9.31%, Al is 6.05%, and Ca is 10.31%. , S is 3.42%, Na is 1.59%, Mg is 1.87%, Mn is 1.21%, O is 37.08%, and its particle size is less than 5mm; the main chemical composition of the high-silicon bauxite: Al 2 o 3 60.67%, SiO 2...

Embodiment 2

[0033] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0034]

[0035] Described compound grinding aid is the mixture of glycerin, dehydrated alcohol and tripropylene glycol, and the mass ratio of glycerol, dehydrated alcohol and tripropylene glycol is 4:1:1, wherein glycerin, dehydrated alcohol and tripropylene glycol All are analytically pure; the main chemical components of the slag: MgO is 8.04%, Al 2 o 3 14.25%, SiO 2 27.21%, SO 3 2.43%, CaO 43.10%, TiO 2 1.59%, Fe 2 o 3 0.79%, MnO 0.38%, Na 2 O is 1.08%, others are 1.13%, and its particle size is less than 5mm; the element content of the dust sludge kiln slag: Fe is 26.60%, Zn is 2.56%, Si is 9.31%, Al is 6.05%, and Ca is 10.31%. , S is 3.42%, Na is 1.59%, Mg is 1.87%, Mn is 1.21%, O is 37.08%, and its particle size is less than 5mm; the main chemical composition of the high-silicon bauxite: Al 2 o 3 60.67%, SiO 2 13.61%, Fe...

Embodiment 3

[0040] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0041]

[0042] Described compound grinding aid is the mixture of glycerin, dehydrated alcohol and tripropylene glycol, and the mass ratio of glycerol, dehydrated alcohol and tripropylene glycol is 4:2:1, wherein glycerin, dehydrated alcohol and tripropylene glycol All are analytically pure; the main chemical components of the slag: MgO is 8.04%, Al 2 o 3 14.25%, SiO 2 27.21%, SO 3 2.43%, CaO 43.10%, TiO 2 1.59%, Fe 2 o 3 0.79%, MnO 0.38%, Na 2 O is 1.08%, others are 1.13%, and its particle size is less than 5mm; the element content of the dust sludge kiln slag: Fe is 26.60%, Zn is 2.56%, Si is 9.31%, Al is 6.05%, and Ca is 10.31%. , S is 3.42%, Na is 1.59%, Mg is 1.87%, Mn is 1.21%, O is 37.08%, and its particle size is less than 5mm; the main chemical composition of the high-silicon bauxite: Al 2 o 3 60.67%, SiO 2 13.61%, Fe...

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Abstract

The invention discloses a solid waste-type inorganic glue with the integration of oxidation, flame retardancy and high shear force and a preparation method thereof, belonging to the field of utilization of solid waste resources. The inorganic glue includes compound grinding aids, slag, dust mud kiln slag, high-silicon bauxite, phosphorus slag, graphene oxide, compound alkali activator, hydrogen peroxide solution, and semi-dry desulfurization ash. The compound grinding aid is a mixture of glycerin, absolute ethanol and triglycerol; the compound alkali activator is a mixture of water glass and sodium hydroxide. The invention not only reduces the production cost of the existing inorganic glue, but also improves the flame retardancy and shear force of the inorganic glue, and at the same time promotes the semi-dry method to remove the unstable CaSO 3 stable CaSO 4 At the same time, the integration of oxidation, flame retardancy and high shear force in inorganic adhesives has been realized, which has greatly enhanced the market competitiveness and application scope of inorganic adhesives; New ideas for large-scale, high value-added application of slag and semi-dry desulfurization ash.

Description

technical field [0001] The invention belongs to the field of utilization of solid waste resources, and in particular relates to a solid waste-type inorganic glue with the integration of oxidation, flame retardancy and high shear force and a preparation method thereof. Background technique [0002] Slag is the solid waste in the blast furnace ironmaking process, and its main component is the melt of silicate and aluminosilicate; dust sludge kiln slag is the metallurgical solid waste produced after the zinc oxide rotary kiln processes zinc-containing intermediate materials. The main chemical composition is Fe 2 o 3 , CaO, SiO 2 ; High-silicon bauxite is a kind of aluminum-silicon ratio (Al 2 o 3 / SiO 2 ) lower bauxite, due to its low alumina content, the production cost of desiliconization and refining alumina is high and the product quality is poor; semi-dry desulfurization ash is a solid waste in the flue gas desulfurization process, and its main component is CaO, SO ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B12/00C04B12/02
CPCC04B12/005C04B12/027
Inventor 张浩吴胜华宗志芳杜晓燕韩正王石林唐刚黄新杰
Owner ANHUI UNIVERSITY OF TECHNOLOGY