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Active lime powder surface modifier and production method thereof

A technology of active lime and improver, which is applied in the field of surface improver of active lime powder, can solve the problems of high raw material requirements for modifier, insufficient fluidity, weak moisture resistance of lime powder, etc., and achieve strong waterproof performance and high The effect of activity

Inactive Publication Date: 2010-02-10
HUBEI HESHI CALCIUM IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems existing in the prior art that lime powder has poor moisture resistance and fluidity after adding a lime powder surface modifier, and the raw materials used in the modifier have high requirements, and provide a Lime powder has strong moisture resistance, good fluidity, and an active lime powder surface modifier with easy-to-obtain raw materials

Method used

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  • Active lime powder surface modifier and production method thereof

Examples

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Effect test

Embodiment 1

[0027] An active lime powder surface improver, its composition and weight ratio are: chromium trichloride 40, 95% ethanol solution 92, soap powder 20, 40% potassium hydroxide solution 5.2, calcium oxide 100, organic silicon oil 7.1.

[0028] A production method of the above-mentioned quicklime powder surface improver: after the above-mentioned components are prepared according to the stated ratio, firstly mix and stir the chromium trichloride, ethanol solution and soap powder, then heat to 75°C and keep the temperature for 2 hours, Then add potassium hydroxide solution and react for 1.5 hours, then add calcium oxide and organic silicon oil in sequence, mix and stir, and finally cool down in the daily environment to obtain the finished product.

Embodiment 2

[0030] An active lime powder surface improver, its composition and weight ratio are: chromium trichloride 60, 96% ethanol solution 110, soap powder 30, 30% potassium hydroxide solution 6, calcium oxide 100, organic silicon oil 11.

[0031] A production method of the above-mentioned active lime powder surface improver: after the above-mentioned components are prepared according to the ratio, firstly mix and stir the chromium trichloride, ethanol solution and soap powder, then heat to 79°C and keep it warm for 2 hours , and then add potassium hydroxide solution to react for 1.5 hours, then add calcium oxide and organic silicon oil in turn, mix and stir, and finally cool down in the daily environment to obtain the finished product.

Embodiment 3

[0033] An active lime powder surface improver, its composition and weight ratio are: chromium trioxide 53, 99% ethanol solution 99, soap powder 24, 50% potassium hydroxide solution 5.7, polyethylene paraffin 100, organic silicone oil 9.

[0034] A production method of the above-mentioned active lime powder surface improver: after the above-mentioned components are prepared according to the ratio, firstly mix and stir the chromium trioxide, ethanol solution and soap powder, then heat to 75°C and keep it warm for 2 hours, Then add potassium hydroxide solution and react for 1.5 hours, then add polyethylene paraffin and organic silicon oil in turn, mix and stir, and finally cool down in the daily environment to obtain the finished product.

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Abstract

The invention relates to an active lime powder surface modifier, in particular to an active lime powder surface modifier which is used for desulfurizing molten steel and iron and comprises the following components in percentage by weight: 40-60 chromic compound, 90-110 ethanol solution, 20-30 soap powder, 100 vector, 7-11 organic silicon oil and 5-6 alkali liquor with the mass percent concentration of 30-50 percent. The production method of the active lime powder surface modifier comprises the following steps: proportionally mixing the components; firstly mixing and stirring the chromic compound, the ethanol solution and the soap powder; then, heating to 75-79 DEG C; keeping temperature for 2 hours; adding the alkali liquor to react for 1.5 hours; sequentially adding, mixing and stirring the vector and the organic silicon oil; and finally, cooling in a normal environment to obtain a finished product. The active lime powder with the added active lime powder surface modifier has high activity, strong water resistance and good fluidity and is extremely suitable for desulphurization by an injection method.

Description

technical field [0001] The invention relates to a surface modifier for active lime powder and a production method thereof, in particular to a surface modifier for active lime powder used for desulfurization of molten steel and molten iron and a production method thereof. Background technique [0002] The common active lime powder desulfurizer used in the existing steelmaking technology is easy to deliquesce due to contact with moisture in the air, thereby reducing the activity and poor desulfurization efficiency. It is necessary to improve the ordinary activated lime powder. The Chinese patent authorization announcement number is CN1389578, and the invention patent whose authorization announcement date is 2003.01.08 discloses a quicklime powder surface modifier. The composition of the quicklime powder surface modifier is hard acid, acetone, no Water methanol, additives and silicone oil. Although the quicklime powder surface modifier can increase the moisture resistance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/064C21C1/02
Inventor 王国群周震庭王骏刘发啟程器
Owner HUBEI HESHI CALCIUM IND DEV
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