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Method for preparing environment-friendly brick from nickel wet smelting slag and water quenching slag

A technology of hydrometallurgy and water quenching slag, applied in application, clay products, household appliances, etc., can solve the problem of lack of effective means, reduce the risk of heavy metal leaching, and solve the effect of intractable treatment.

Pending Publication Date: 2021-11-12
荆门绿源环保产业发展有限公司 +1
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method of using nickel hydrometallurgy slag and water quenching slag to prepare environmental protection bricks, which is used to solve the lack of effective means in the prior art for simultaneous treatment of nickel hydrometallurgy slag and water quenching slag question

Method used

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  • Method for preparing environment-friendly brick from nickel wet smelting slag and water quenching slag

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Embodiment Construction

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] In the present invention, the method of using nickel hydrometallurgy slag and water quenching slag to prepare environmental protection bricks, the steps include:

[0017] (1) Mix nickel slag, water-quenched slag and shale uniformly according to the mass ratio (10-20): (5-20): (60-80) to obtain raw meal. In this step, since the nickel slag is the hydrometallurgy slag of nickel, it has a relatively high moisture content, usually greater than 20%, so the nickel slag and s...

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Abstract

The invention discloses a method for preparing an environment-friendly brick from nickel wet smelting slag and water quenching slag. The method comprises the following steps: uniformly mixing nickel slag, water-quenched slag and shale according to the mass ratio of (10-20): (5-20): (60-80) to obtain a raw material; uniformly mixing the raw material with water according to a mass ratio of 1: (0.001-0.05), aging, performing compression molding, drying, and controlling the water content to be less than 5% to obtain a dried green brick; and carrying out high-temperature roasting on the dried green brick to obtain the environment-friendly brick. According to the method, the characteristics of the shale are utilized, the shale, the nickel wet-process smelting slag and the water-quenched slag are mixed and roasted, the nickel wet-process smelting slag and the water-quenched slag are treated at the same time, the problem that the nickel wet-process smelting slag is difficult to treat is effectively solved, the heavy metal leaching risk of the nickel wet-process smelting slag is remarkably reduced, the effects of simultaneous treatment and utilization of two kinds of solid waste and hazardous waste, energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention relates to the field of solid waste and hazardous waste treatment, in particular to a method for preparing environmentally friendly bricks by utilizing nickel hydrometallurgy slag and water quenching slag. Background technique [0002] my country's industrialization process is accelerating, and a large amount of heavy metal-containing waste residues are produced in the industrial production process, and a large amount of accumulation takes up the factory area, while simple landfill pollutes the environment and groundwater resources, which is not conducive to the ecological environment. [0003] With the rapid development of the new energy industry, the production and manufacture of battery raw materials has produced a large amount of waste residue containing heavy metals, and its accumulation and stacking have increased the burden on enterprises. Among them, the battery industry uses hydrometallurgy technology to extract valuable metals f...

Claims

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Application Information

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IPC IPC(8): C04B33/04C04B33/138C04B33/32
CPCC04B33/04C04B33/138C04B33/32Y02P40/60
Inventor 许开华薛清华叶标朱君黄冬波
Owner 荆门绿源环保产业发展有限公司
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