Aluminum ash harmless treatment process and product obtained therethrough

A technology of harmless treatment and aluminum ash, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of poor product performance and high pollution of aluminum ash treatment process, so as to avoid polluting the environment. Effect

Active Publication Date: 2022-01-11
湖北喜瑞多科技有限公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, it is necessary to provide a harmless treatment process of aluminum ash and the products obtained therefrom to solve the technical problems of high pollution and poor performance of the products obtained in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050](1) Hydrophobic treatment: Add methyl hydrogen-containing silicone oil accounting for 3% of the pretreated aluminum ash to the pretreated aluminum ash, stir evenly at a high speed, stir and heat up to 150°C for 1 hour to cross-link and solidify to form a complete hydrophobic surface;

[0051] (2) Hydrophilic treatment: add a sodium dodecylbenzenesulfonate solution with a mass fraction of 10% according to the dosage ratio of 1g:0.1ml to the aluminum ash after the hydrophobic treatment, and stir evenly to form a hydrophilic surface;

[0052] (3) Brick making: Mix 55 parts of aluminum ash after hydrophilic treatment, 40 parts of phosphogypsum, 8 parts of cement, 3 parts of aluminum dihydrogen phosphate, and 18 parts of water, and then use a brick making machine to press and shape it, and maintain it for seven days. Get the product.

Embodiment 2

[0054] (1) Hydrophobic treatment: add methyl ethoxy silicone oil accounting for 0.5% of the mass of the pretreated aluminum ash to the pretreated aluminum ash, stir evenly at a high speed, stir and raise the temperature to 250°C for 1.2 hours to cross-link and solidify to form complete hydrophobic surface;

[0055] (2) Hydrophilic treatment: add a sodium dodecylbenzenesulfonate solution with a mass fraction of 20% according to the dosage ratio of 1g:0.05ml to the aluminum ash after the hydrophobic treatment, and stir evenly to form a hydrophilic surface;

[0056] (3) Brick making: Mix 60 parts of aluminum ash after hydrophilic treatment, 50 parts of phosphogypsum, 3 parts of cement, 6 parts of water-based polyurethane, and 25 parts of water, and then use a brick making machine to press and shape it, and maintain it for seven days to obtain the finished product .

Embodiment 3

[0058] (1) Hydrophobic treatment: add MHX-1107 hydrogen-containing silicone oil accounting for 2% of the pretreated aluminum ash to the pretreated aluminum ash, stir at a high speed evenly, stir and raise the temperature to 150°C for 0.3 hours to cross-link and solidify to form complete hydrophobic surface;

[0059] (2) Hydrophilic treatment: add fatty alcohol ether sulfate solution with a mass fraction of 5% to the aluminum ash after hydrophobic treatment according to the dosage ratio of 1g:0.2ml, and stir evenly to form a hydrophilic surface;

[0060] (3) Brick making: Mix 50 parts of aluminum ash after hydrophilic treatment, 30 parts of phosphogypsum, 10 parts of cement, 6 parts of acrylic acid emulsion, and 10 parts of water, and then use a brick making machine to press and shape it, and maintain it for seven days to obtain the finished product .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an aluminum ash harmless treatment process and a product obtained therethrough. The harmless treatment process for the aluminum ash comprises the following steps: carrying out hydrophobic treatment on the aluminum ash through a high-molecular silicon polymer; carrying out hydrophilic treatment on the aluminum ash subjected to hydrophobic treatment; and preparing the product from the aluminum ash subjected to hydrophilic treatment. The aluminum ash is subjected to hydrophobic treatment to form a high-strength hydrophobic membrane, then hydrophilic treatment is performed to form a hydrophilic membrane, on one hand, the aluminum ash can be prevented from generating ammonia when encountering water, environmental pollution is avoided, on the other hand, the construction mixing difficulty of aluminum ash particles after hydrophobic treatment is reduced, and the unconfined compressive strength of a finished product is improved.

Description

technical field [0001] The invention relates to the technical field of aluminum ash treatment, in particular to a process for harmless treatment of aluminum ash and products obtained therefrom. Background technique [0002] Aluminum ash is produced in all aluminum melting processes such as aluminum electrolysis and aluminum (including recycled aluminum) processing. Its sources can be divided into aluminum ash produced in the process of aluminum electrolytic smelting, aluminum ash in the process of aluminum melting and casting, and aluminum ash in the process of secondary aluminum processing. As the electrolytic aluminum country that ranks first in both production capacity and output in the world, China's electrolytic aluminum, aluminum processing, and recycled aluminum discharge a conservative estimate of more than 5 million tons of aluminum ash every year. Among them, the aluminum ash produced on the surface of the melt during the casting process, the salt slag produced du...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B20/12C04B28/14C04B28/26C04B28/34C04B18/14
CPCC04B20/12C04B28/143C04B28/26C04B28/344C04B2111/0075C04B7/00C04B11/26C04B18/144C04B24/282C04B24/2641C04B20/1051C04B20/1022Y02W30/91
Inventor胡滨
Owner湖北喜瑞多科技有限公司