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Mineral powder prepared by neutralizing slag from industrial waste and its preparation method

A technology of industrial waste slag and mineral powder, which is applied in the field of resource-based new technology materials, can solve problems such as ineffective treatment, landfilling, and environmental pollution, so as to save natural mineral resources and energy, reduce energy conservation, emission reduction, and carbon emissions , the effect of changing the physical properties

Active Publication Date: 2021-12-17
陕西赛柯瑞思生态建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem that neutralized slag discharged from rare earth enterprises can only be piled up in landfills, pollute the environment, and cannot be effectively treated, and provide a method for producing slag by using neutralized slag and its preparation

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  • Mineral powder prepared by neutralizing slag from industrial waste and its preparation method
  • Mineral powder prepared by neutralizing slag from industrial waste and its preparation method

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Embodiment 1

[0015] The invention discloses mineral powder prepared by using industrial waste slag neutralized slag, which is composed of the following substances in mass percentage: 90% neutralized slag, 10% nickel slag, waste slag discharged after the rare earth enterprises produce rare earth products. The above-mentioned nickel slag is the waste slag discharged from the nickel product enterprises after producing nickel products; wherein, the neutralization slag contains CaO, SiO 2 、Al 2 o 3 , Fe 2 o 3 , MgO and H 2 O, the water content is 60%.

[0016] The invention discloses a method for preparing slag by using industrial waste slag to neutralize slag. The neutralized slag and nickel slag are calculated as 90% of neutralized slag and 10% of nickel slag according to mass percentage, mixed and stirred evenly by equipment, and hydration reaction is carried out. Then it is dried in a drying kiln at 100°C to form a mineral powder product with a new mineral composition and a new crystal...

Embodiment 2

[0019] The invention discloses mineral powder prepared by using industrial waste slag neutralized slag, which is composed of the following mass percentages: 95% neutralized slag, 5% nickel slag, the waste slag discharged after the neutralized slag rare earth enterprise produces rare earth products, and the The above-mentioned nickel slag is the waste slag discharged from the nickel product enterprises after producing nickel products; wherein, the neutralization slag contains CaO, SiO 2 、Al 2 o 3 , Fe 2 o 3 , MgO and H 2 O, the water content is 60%.

[0020] The invention discloses a method for preparing slag using industrial waste slag neutralization slag. The neutralization slag and nickel slag are calculated as 95% of neutralization slag and 5% of nickel slag by mass percentage, and are mixed and stirred evenly by equipment to carry out hydration reaction. Then it is dried in a drying kiln at 300°C to form a mineral powder product with a new mineral composition and a ne...

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Abstract

The invention discloses an ore powder prepared by neutralizing slag from industrial waste slag and a preparation method thereof. In terms of weight percentage, 90-95% of neutralization slag and 5-10% of nickel slag are mixed and stirred evenly through equipment, and water Chemical reaction, drying at 100-300°C in a drying kiln to form a mineral powder product with a new hydrated mineral composition and a new active crystal lattice, the moisture is less than 1.0%, and then the mineral powder product material is mechanically ground into powder Shaped mineral powder products. The mineral powder product in the present invention can replace natural cement clinker for the production of cement and concrete, the replacement amount is 40-50%, so that the mineral powder enterprise can save electricity by 50%, increase the output per hour by 50%, and treat it as neutralized slag Provides new technology, saves mineral resources, reduces carbon emissions, and protects the ecological environment from secondary pollution.

Description

technical field [0001] The invention belongs to the technical field of resource-based new technology materials, and in particular relates to using industrial waste slag neutralized slag to produce mineral powder and a preparation method thereof. Background technique [0002] The composition of the neutralization slag is complex. It is a waste residue like white mud discharged from the rare earth production enterprises. , contains trace amounts of toxic and harmful substances, and it is very difficult to develop and utilize. At present, this kind of waste is basically disposed of by landfill, which seriously pollutes the environment. If it continues like this for a long time, it will cause great harm to human health. Under the new situation of taking the scientific outlook on development as the goal and promoting the construction of a harmonious society based on people, harmlessness and resource utilization are urgent problems that must be solved by those skilled in the art t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/147C04B7/38C04B18/14C04B20/04
CPCC04B7/147C04B7/38C04B18/144C04B20/04C04B20/023C04B20/026Y02W30/91Y02P40/10
Inventor 谭纪林张松谭伟谭羽涵曹建明居延娟
Owner 陕西赛柯瑞思生态建材股份有限公司
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