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Method for preparing barium-based glass frit by using barium slag

A technology of glass frit and barium slag, which is applied in the field of industrial waste slag treatment and comprehensive utilization, can solve problems such as high aluminum can not be used, and achieve the effects of less air bubbles, ecological environment protection, low resource consumption and environmental costs

Active Publication Date: 2018-05-18
贵州红星发展大龙锰业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Barium slag cannot be used due to its iron content and high aluminum content

Method used

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  • Method for preparing barium-based glass frit by using barium slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] (1) Use a ball mill to grind the barium slag to 100 mesh, and adjust the barium slag slurry with water, wherein the mass ratio of solid to liquid in the slurry is 1:2.5.

[0062] (2) The slurry pump feeds the barium slag slurry into the leaching pipeline, and at the same time, the sulfuric acid pump pumps 105% sulfuric acid into the pipeline, with an initial pressure of 16kg / cm 2 , terminal pressure 0.5kg / cm 2 , the pH value of the reaction liquid is controlled to be 1, and the reaction time is 5 minutes. After the reaction, the material enters the gas-liquid separation buffer tank for gas-liquid separation.

[0063] (3) The separated gas enters the absorption tower and is absorbed by sodium hydroxide to prepare sodium sulfide. The mud enters the settling tank, and the overflow liquid from the upper part of the settling tank is filtered and purified, and then enters the hydrolysis reaction tank to prepare polyferric aluminum sulfate water purifying agent.

[0064] (4...

Embodiment 2

[0067] (1) Use a ball mill to grind the barium slag to 200 mesh, and adjust the barium slag slurry with water, wherein the mass ratio of solid to liquid in the slurry is 1:1.25.

[0068] (2) The slurry pump feeds the barium slag slurry into the leaching pipeline, and at the same time, the sulfuric acid pump pumps 98% sulfuric acid into the pipeline, with an initial pressure of 10kg / cm 2 , terminal pressure 8kg / cm 2 , the pH value of the reaction liquid is controlled to be 2, and the reaction time is 10 minutes. After the reaction, the material enters the gas-liquid separation buffer tank for gas-liquid separation.

[0069] (3) The separated gas enters the absorption tower and is absorbed by sodium hydroxide to prepare sodium sulfide. The mud enters the settling tank, and the overflow liquid from the upper part of the settling tank is filtered and purified, and then enters the hydrolysis reaction tank to prepare polyferric aluminum sulfate water purifying agent.

[0070] (4)...

Embodiment 3

[0073] (1) Use a ball mill to grind the barium slag to 300 mesh, and adjust the barium slag slurry with water, wherein the mass ratio of solid to liquid in the slurry is 1:1.25.

[0074] (2) The slurry pump feeds the barium slag slurry into the leaching pipeline, and at the same time, the sulfuric acid pump pumps 93% sulfuric acid into the pipeline with an initial pressure of 10kg / cm 2 , terminal pressure 2kg / cm 2 , the pH value of the reaction liquid was controlled to be 3, and the reaction time was 20 minutes. After the reaction, the material enters the gas-liquid separation buffer tank for gas-liquid separation.

[0075] (3) The separated gas enters the absorption tower and is absorbed by sodium hydroxide to prepare sodium sulfide. The mud enters the settling tank, and the overflow liquid from the upper part of the settling tank is filtered and purified, and then enters the hydrolysis reaction tank to prepare polyferric aluminum sulfate water purifying agent.

[0076] (4...

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Abstract

The invention provided a method for preparing barium-based glass frit with barium slag. The method comprises the following steps: barium slag is ground, and a barium slag slurry is prepared; the barium slag slurry is subjected to pipeline sulfuric acid leaching; hydrogen sulfide gas produced in the product is absorbed with sodium alkali, such that sodium sulfide is obtained; solid-liquid separation is carried out, and an iron aluminum sulfate water purifying agent is obtained; the solid is washed and dried; the dried solid is added into a glass frit furnace, and is molten in an oxidation atmosphere; the molten glass is subjected to water extraction, such that the barium-based glass frit is obtained. With the method provided by the invention, barium slag utilization rate is improved, and a high-barium glass frit (ceramic glaze material) is obtained. A glass material prepared with the high-barium frit has the advantages of less bubbles, high transparency and bright color, and has functions that cannot be found in common glass.

Description

technical field [0001] The invention belongs to the field of industrial waste slag treatment and comprehensive utilization. Specifically, the invention relates to a method for preparing barium-based glass frit by using barium slag. Background technique [0002] Barium slag is the residual solid in the production of barium salt, which belongs to industrial waste, and its chemical composition mainly includes silicon dioxide, iron oxide, aluminum oxide, calcium oxide, potassium oxide and barium compound salts such as barium sulfate and barium carbonate. Barium slag stacking pollutes the environment, damages human health, and invades the land, especially the water-soluble barium in the barium slag, which is easy to seep into the groundwater, making the barium in the groundwater exceed the standard, and affecting people's health. [0003] At present, the utilization of barium slag is mainly to use barium slag to make bricks, which is too low in resource utilization value, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/02C01B17/22C01G49/14C02F1/52
CPCC01B17/22C01G49/009C02F1/5245C03C1/002C03C8/02
Inventor 刘湘玉严家铎蒋友良杨星
Owner 贵州红星发展大龙锰业有限责任公司
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