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Alkaline powder for treating leaked hydrogen sulfide poisonous gas and production method thereof

A hydrogen sulfide and powder technology, which is applied in chemical instruments and methods, separation methods, and dispersed particle separation, can solve the problems of reducing the specific surface area of ​​powders, reducing the efficiency of adsorption reactions, and increasing the risk of environmental pollution, so as to achieve fluffy residues and easy Cleaning or removal by negative pressure suction, fast response effect

Inactive Publication Date: 2013-10-02
BEIJING NORMAL UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these two patents can effectively deal with leaked hydrogen sulfide, the presence of heavy metal zinc increases the risk of environmental pollution, and the addition of silicone oil also reduces the specific surface of the powder, thereby reducing the efficiency of the adsorption reaction

Method used

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  • Alkaline powder for treating leaked hydrogen sulfide poisonous gas and production method thereof

Examples

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Effect test

Embodiment 1

[0037] Example 1 Preparation and application of hydrogen sulfide leakage disposal powder

[0038] Prepare 100kg of alkaline powder for disposal of hydrogen sulfide leakage, and its composition ratio is: neutralization catcher (calcium hydroxide 46.75kg, sodium hydroxide 23.375kg, potassium hydroxide 23.375kg) 93.5kg, moisture-proof agent 0.5kg , Additives 6kg. The specific preparation method is as follows: firstly, the additive and the neutralizing and arresting agent are sequentially mixed in a reaction tank with a stirring device, stirred for 0.5h to 1h, added with 5% to 50% of clean water, stirred for 1h, and subjected to grinding and primary sieving to make the The part that meets the particle size requirements (60 mesh ~ 160 mesh) is sent to a hot air dryer for drying. When the moisture content is less than 1%, it is sent to a mixer, and a moisture-proof agent is added for mixing to meet the requirements of particle size, specific surface area and bulk density. Qualified...

Embodiment 2

[0040] Example 2 Preparation and application of hydrogen sulfide leakage disposal powder

[0041] Prepare 100kg of alkaline powder for treating hydrogen sulfide leakage, and its composition ratio is: 90kg of neutralizing and arresting agent (18kg of calcium carbide slag, 72kg of potassium hydroxide), 2kg of moisture-proof agent, and 8kg of additives. The specific preparation method is as follows: firstly, the additive and the neutralizing and arresting agent are sequentially mixed in a reaction tank with a stirring device, stirred for 0.5h to 1h, added with 5% to 50% of clean water, stirred for 1h, and subjected to grinding and primary sieving to make the The part that meets the particle size requirements (60 mesh ~ 160 mesh) is sent to a hot air dryer for drying. When the moisture content is less than 1%, it is sent to a mixer, and a moisture-proof agent is added for mixing to meet the requirements of particle size, specific surface area and bulk density. Qualified products; ...

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Abstract

The invention provides alkaline powder for treating leaked hydrogen sulfide poisonous gas and a production method thereof. A neutralization capturing agent, a desiccant and an additive are prepared into the alkaline powder according to a certain ratio by a specific method. The production method adopts the easily available raw materials and has simple processes and low energy consumption. The alkaline powder has particles of 60 to 160 meshes, and has a specific surface greater than 32m<2> / g, bulk density greater than 0.85g / cm<3>. After sprinkling, the alkaline powder has good settlement performances and has a settlement recovery rate greater than or equal to 95% in 2min. The alkaline powder can effectively treat hydrogen sulfide gas, has a fast treatment rate, produces dry and fluffy residues after treatment, can be cleaned easily, and has a wide application range and small damage on the environment.

Description

technical field [0001] The invention relates to the field of emergency treatment of acid chemical leakage, in particular to an alkaline powder for disposing of leaked poisonous hydrogen sulfide gas and a production method thereof. Background technique [0002] Hydrogen sulfide is a colorless, highly toxic gas with a smell of rotten eggs. When poisoning occurs, hydrogen sulfide enters the alveoli through the respiratory tract and quickly reacts with ferrous ions in hemoglobin to form ferrous sulfide precipitation, which prevents hemoglobin from interacting with the alveoli. The collection of oxygen, eventually lead to human death due to lack of oxygen. Hydrogen sulfide poisoning incidents are sudden and mass, with a high mortality rate. Once it occurs, it will seriously threaten the personal safety of employees and the public, and the impact of secondary disasters will be great, seriously polluting the atmospheric environment, and even destroying the ecological environment. ...

Claims

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Application Information

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IPC IPC(8): B01D53/52B01D53/83
Inventor 王守中张统董春宏秦建昭杨志峰侯立安方小军卫冬燕陈耀卿单方方
Owner BEIJING NORMAL UNIVERSITY
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