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Production method and production device of sodium orthosilicate

A sodium orthosilicate and production method technology, applied in the direction of silicate, alkali metal silicate, etc., can solve the problems of long process flow, high energy consumption, and many equipment, and achieve low energy consumption, short production process, The effect of reducing production costs

Inactive Publication Date: 2016-01-13
山东龙港硅业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The traditional method for preparing sodium orthosilicate has a long process flow, many equipment, large investment and high energy consumption

Method used

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  • Production method and production device of sodium orthosilicate
  • Production method and production device of sodium orthosilicate
  • Production method and production device of sodium orthosilicate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of sodium orthosilicate production method, described production method comprises the following steps:

[0033] (1) Add solid sodium hydroxide and silicon micropowder into the electric melting furnace according to the weight ratio of 2.5:1, and the temperature rise curve is raised to 200°C at 8-10°C / min, and then to 320°C at 4-6°C / min After heating, the solid sodium hydroxide is melted, and then the temperature is raised to 400°C at 4-6°C / min, and the heating is stopped until the silicon micropowder is completely reacted to obtain the crude sodium orthosilicate;

[0034] (2) Cool the crude sodium orthosilicate to below 60°C to completely solidify the crude sodium orthosilicate to obtain the sodium orthosilicate product.

Embodiment 2

[0036] A kind of sodium orthosilicate production method, described production method comprises the following steps:

[0037] (1) Add solid sodium hydroxide and silica powder passing through a 1000-mesh sieve into the electric melting furnace at a weight ratio of 2.7:1. Raise the temperature to 330°C in minutes, melt the solid sodium hydroxide after heating, keep it warm for 30 minutes, then continue to heat up to 430°C at 4-6°C / min, stop heating until the microsilica powder reacts completely, and then get sodium orthosilicate Crude;

[0038] (2) Cool the crude sodium orthosilicate to below 60° C. to completely solidify the crude sodium orthosilicate, and prepare granular or powdered sodium orthosilicate products by crushing and sieving.

Embodiment 3

[0040] A kind of sodium orthosilicate production method, described production method comprises the following steps:

[0041] (1) Add solid sodium hydroxide and silica powder passed through a 1000-mesh sieve into the electric melting furnace at a weight ratio of 3:1, and the temperature rise curve is raised to 200°C at 8-10°C / min, and then at 4-6°C / min Raise the temperature to 350°C in minutes, melt the solid sodium hydroxide after heating, and keep it warm for 30 minutes, then continue to raise the temperature to 450°C at 4-6°C / min, stop heating until the silicon micropowder reacts completely, that is, sodium orthosilicate Crude;

[0042] (2) Cool the crude sodium orthosilicate to below 60° C. to completely solidify the crude sodium orthosilicate, and prepare granular or powdered sodium orthosilicate products by crushing and sieving.

[0043] Traditional technology and investment cost of the present invention and energy consumption contrast are shown in the following table: ...

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Abstract

The invention belongs to the technical field of sodium silicate production and especially relates to a production method and a production device of sodium orthosilicate. The production method includes the following steps: 1) adding solid sodium hydroxide and silicon micropowder according to the weight ratio of 2.5-3:1 into an electric melting furnace, and increasing the temperature to 400-450 DEG C, stopping heating until the silicon micropowder is reacted completely to obtain a sodium orthosilicate crude product; and 2) cooling the sodium orthosilicate crude product to lower than 60 DEG C to completely solidify the sodium orthosilicate crude product to obtain the sodium orthosilicate. The production device includes the electric melting furnace and a cooling apparatus. The production method is short in process and is low in energy consumption. The production device is simple in structure, is low in investment, is simple in operation and can greatly save labor load and reduce production cost.

Description

technical field [0001] The invention belongs to the technical field of sodium silicate production, and in particular relates to a production method of sodium orthosilicate and a production device thereof. Background technique [0002] Sodium silicate, commonly known as water glass, sodium silicate, molecular formula is Na 2 O mSiO 2 , where m is the modulus, that is, SiO in the product 2 and Na 2 The molar ratio of O is generally 1-3. [0003] Sodium orthosilicate, also known as sodium orthosilicate, the molecular formula is 2Na 2 O SiO 2 , the modulus is 0.5; sodium orthosilicate belongs to inorganic salt products, it is a kind of non-toxic, tasteless, pollution-free white particles, easily soluble in water, insoluble in alcohol and acid, the aqueous solution is alkaline, alkaline than metasilicate Strong in sodium, easy to absorb moisture and deliquescence when placed in the air, it has the ability of descaling, emulsification, dispersion, wetting, permeability and b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/32
Inventor 王敬伟赵贝贝
Owner 山东龙港硅业科技有限公司