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Slow-release material for stabilizing and treating barium slag and stabilizing and treating method for barium slag

A slow-release material and stabilization technology, which is applied in the field of slow-release materials for the stabilization and treatment of barium slag, can solve the problem of high sulfate ion concentration, achieve the effect of reducing sulfate ion concentration, significant effect, and high exchange capacity

Active Publication Date: 2022-03-25
中化环境修复(上海)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved in the present invention is to overcome the defect that the concentration of sulfate ions in the treated barium slag leachate is higher after overdosing the medicament in the prior art, thereby providing a slow-release solution for stabilizing the treatment of barium slag. Stabilization treatment method of materials and barium slag

Method used

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  • Slow-release material for stabilizing and treating barium slag and stabilizing and treating method for barium slag
  • Slow-release material for stabilizing and treating barium slag and stabilizing and treating method for barium slag
  • Slow-release material for stabilizing and treating barium slag and stabilizing and treating method for barium slag

Examples

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Effect test

Embodiment 1

[0036] This embodiment provides a slow-release material for stabilizing and treating barium slag, and its raw material composition is:

[0037] Sodium sulfate 60g, magnesium aluminum hydrotalcite model HT-22 30g.

[0038] The preparation method of the slow-release material for stabilizing and treating barium slag is as follows: uniformly mix 60 g of sodium sulfate and 30 g of magnesium aluminum hydrotalcite.

[0039] The application method of the slow-release material for the above-mentioned stabilization and control of barium slag is as follows:

[0040] Sample preparation: take the barium slag, and measure the moisture content of the air-dried barium slag by the drying-gravimetric method; obtain the above-mentioned slow-release material for stabilizing and treating the barium slag at the same time; It is better than barium slag.

[0041] Treatment: Add slow-release materials to the barium slag, so that the total molar amount of sulfate radicals in the added slow-release ma...

Embodiment 2

[0043] This embodiment provides a slow-release material for stabilizing and treating barium slag, and its raw material composition is:

[0044] Sodium sulfate 50g, model 50g of magnesium aluminum hydrotalcite of HT-22.

[0045] The preparation method of the above-mentioned slow-release material for stabilizing and treating barium slag is as follows: uniformly mixing 50 g of sodium sulfate and 50 g of magnesium aluminum hydrotalcite.

[0046]The application method of the slow-release material for the above-mentioned stabilization and control of barium slag is as follows:

[0047] Sample preparation: take the barium slag, and measure the moisture content of the air-dried barium slag by the drying-gravimetric method; obtain the above-mentioned slow-release material for stabilizing and treating the barium slag at the same time; It is better than barium slag.

[0048] Treatment: Add slow-release materials to the barium slag, so that the molar concentration of sulfate radicals in ...

Embodiment 3

[0050] This example provides a slow-release material for stabilizing and treating barium slag. The only difference from Example 1 is that the sulfate used is calcium sulfate.

[0051] The preparation method of the slow-release material for stabilizing and treating barium slag is as follows: uniformly mix 60 g of calcium sulfate and 30 g of magnesium aluminum hydrotalcite.

[0052] The application method of the slow-release material for the above-mentioned stabilization and control of barium slag is as follows:

[0053] Sample preparation: take the barium slag, and measure the moisture content of the air-dried barium slag by the drying-gravimetric method; obtain the above-mentioned slow-release material for stabilizing and treating the barium slag at the same time; It is better than barium slag.

[0054] Treatment: Add slow-release materials to the barium slag, so that the molar concentration of sulfate radicals in the barium slag after adding the slow-release materials is 1.4...

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Abstract

The invention discloses a sustained-release material for stabilizing and treating barium slag, which comprises sulfate and an anion adsorption material, and also discloses an application method of the sustained-release material for stabilizing and treating barium slag. The slow-release material provided by the invention can stably treat the barium slag, the treated barium slag leachate cannot have high sulfate ion concentration even if the medicament is excessively added, and the application method is simple and easy to operate.

Description

technical field [0001] The invention relates to the technical field of barium slag treatment, in particular to a slow-release material for stabilizing barium slag treatment and a stabilizing treatment method for barium slag. Background technique [0002] Barium slag is the industrial barium slag produced by producing barium carbonate from barite. It is the solid slag left after high-temperature calcination, cooling, and hot water leaching with barite as raw material and coal slag. Every ton of barium salt produced will produce 0.8-1 ton of barium slag, which contains acid-soluble barium, water-soluble barium and silicate clinker, etc., which has high barium ion leaching characteristics and belongs to hazardous waste. If the barium slag is directly piled up, the barium ions in the leaching solution will pollute the groundwater, causing people to be poisoned after drinking the groundwater and seriously endangering human health. Therefore, the treatment of barium slag is an i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00784C04B2111/00017C04B22/10C04B22/147C04B18/0481
Inventor 车轶夫岳勇许超刘春燕李绍华刘晋恺高永利张帮富朱德文
Owner 中化环境修复(上海)有限公司
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