Sodium bicarbonate anti-hardening agent and application method thereof

An anti-caking agent and baking soda technology, applied in the direction of alkali metal carbonates to prevent moisture absorption, etc., can solve the problems of reduced desulfurization efficiency and easy hardening of soda, and achieve an increase in reaction contact surface, cheap price, and simple production process Effect

Pending Publication Date: 2021-08-10
安徽京科环境发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In order to solve the problems of easy hardening of soda and lower desulfurization efficiency in the prior art, the present invention provides a baking soda anti-hardening agent and its application method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The baking soda anti-caking agent of the present embodiment is composed of the following components in parts by mass: 12 parts of silicon dioxide, 2 parts of talcum powder, 2 parts of magnesium hydroxide, 2 parts of magnesium oxide, and 2 parts of calcium oxide, wherein, two parts The particle size range of silicon oxide is 4.5-5μm, the particle size range of talc powder is 6-6.5μm, the particle size range of magnesium hydroxide is 6-6.5μm, the particle size range of magnesium oxide is 6-6.5μm, and the calcium oxide The particle size range is 6-6.5μm.

[0036] Its preparation method is:

[0037] Step 1: Coarsely grind silicon dioxide, talc powder, magnesium hydroxide, iron oxide, and calcium oxide to 20-40 μm respectively;

[0038] Step 2: mixing silicon dioxide, talcum powder, magnesium hydroxide, iron oxide, and calcium oxide according to the proportion, and mixing evenly to obtain a mixture;

[0039] Step 3: finely grind the mixture to ensure the full mixing and reac...

Embodiment 2

[0043] A baking soda anti-caking agent, consisting of the following components in parts by mass: 2 parts of silicon dioxide, 12 parts of talcum powder, 2 parts of magnesium hydroxide, 2 parts of magnesium oxide, and 2 parts of calcium oxide, wherein silicon dioxide The particle size range of talcum powder is 6-6.5 μm, the particle size range of magnesium hydroxide is 6-6.5 μm, the particle size range of magnesium oxide is 6-6.5 μm, and the particle size range of calcium oxide is 6-6.5 μm. The particle size range is 6-6.5μm.

[0044] Its preparation method is:

[0045] Step 1: Coarsely grind silicon dioxide, talc powder, magnesium hydroxide, iron oxide, and calcium oxide to 20-40 μm;

[0046] Step 2: mixing silicon dioxide, talcum powder, magnesium hydroxide, iron oxide, and calcium oxide according to the proportion, and mixing evenly to obtain a mixture;

[0047] Step 3: finely grind the mixture to ensure the full mixing and reaction of each component, and sieve to 4.5-6.5 μ...

Embodiment 3

[0051] A baking soda anti-caking agent, consisting of the following components in parts by mass: 2 parts of silicon dioxide, 2 parts of talcum powder, 12 parts of magnesium hydroxide, 2 parts of magnesium oxide, and 2 parts of calcium oxide, wherein silicon dioxide The particle size range of talcum powder is 4.5-5μm, the particle size range of talc powder is 6-6.5μm, the particle size range of magnesium hydroxide is 6-6.5μm, the particle size range of magnesium oxide is 6-6.5μm, and the particle size range of calcium oxide is 6-6.5μm. The diameter range is 6-6.5μm.

[0052] Its preparation method is:

[0053] Step 1: Coarsely grind silicon dioxide, talc powder, magnesium hydroxide, iron oxide, and calcium oxide to 20-40 μm;

[0054] Step 2: mixing silicon dioxide, talcum powder, magnesium hydroxide, iron oxide, and calcium oxide according to the proportion, and mixing evenly to obtain a mixture;

[0055] Step 3: finely grind the mixture to ensure the full mixing and reaction...

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Abstract

The invention particularly relates to a baking soda anti-hardening agent and an application method thereof.The baking soda anti-hardening agent is prepared from, by mass, 2-12 parts of silicon dioxide, 2-12 parts of talcum powder, 2-12 parts of magnesium hydroxide, 2-12 parts of magnesium oxide and 2-12 parts of calcium oxide, the particle size range of silicon dioxide is 4.5-5 micrometers, the particle size range of talcum powder is 6-6.5 micrometers, the particle size range of magnesium hydroxide is 6-6.5 [mu]m, the particle size range of magnesium oxide is 6-6.5 [mu]m, and the particle size range of calcium oxide is 6-6.5 [mu]m. The baking soda anti-hardening agent and baking soda are uniformly mixed according to a ratio of 1:4 and then are stored. The anti-hardening agent for the baking soda can effectively prevent the baking soda from hardening, the influence on the desulfurization effect of the baking soda is very small, the desulfurization efficiency can reach 98% or above, and the use method is simple.

Description

technical field [0001] The invention belongs to the field of chemical additives, in particular to a baking soda anti-caking agent and an application method thereof. Background technique [0002] Baking soda refers to sodium bicarbonate, sodium bicarbonate, a carbonate salt with the molecular formula NaHCO 3 , relative molecular weight 84.01, white crystalline powder, odorless, taste alkali, soluble in water, slowly decomposes in humid air or hot air, produces carbon dioxide, loses all carbon dioxide when heated to 270°C, and decomposes strongly when encountering acid Carbon dioxide is produced. After sodium bicarbonate is sprayed into the flue, the first thing to do is the activation reaction, that is, most of the sodium bicarbonate is decomposed into sodium carbonate, water, and carbon dioxide. Due to the release of water and carbon dioxide due to the activation reaction, the generated sodium carbonate becomes The microporous structure increases the surface area, a proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01D7/42
CPCC01D7/42
Inventor 王中原李玲密
Owner 安徽京科环境发展有限公司
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