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Method for synthesizing iron pentacarbonyl with middle pressure

A technology of iron pentacarbonyl and medium pressure, applied in the direction of carbonyl iron, etc., can solve the problems of slow synthesis speed, difficulty in large-scale production, low extraction rate, etc., and achieve the effects of saving energy, improving work efficiency, and reducing reaction temperature

Inactive Publication Date: 2008-07-30
JILIN JIEN NICKEL IND +1
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the existing high-pressure method, such as slow synthesis speed, low extraction rate, and difficulty in large-scale production, and provide a method for synthesizing iron pentacarbonyl at medium pressure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 800 g of sponge iron with a Fe content of 92 wt % and a particle size of 50-200 mm was loaded into a corrosion-resistant tubular reactor. Feed carbon monoxide containing 0.5% hydrogen sulfide, and react for 48 hours under the reaction conditions of temperature of 200°C and pressure of 7.5Mpa, and the extraction rate of iron is 91.2%.

Embodiment 2

[0025] 800 g of sponge iron with a Fe content of 96% and a particle size of 50-200 mm is loaded into a corrosion-resistant tubular reactor. Feed carbon monoxide containing 0.1% hydrogen sulfide, and react for 48 hours under the reaction conditions of a temperature of 190° C. and a pressure of 6.0 Mpa, and the extraction rate of iron is 90.3%.

Embodiment 3

[0027] 800 grams of sponge iron with a Fe content of 93% and a particle size of 50-200mm was loaded into a corrosion-resistant tubular reactor. Feed carbon monoxide containing 0.5% hydrogen sulfide, react for 48 hours under the reaction conditions of temperature 160° C. and pressure 8.0 Mpa, and the extraction rate of iron is 93.5%.

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Abstract

The invention discloses a method for synthesizing an iron pentacarbonyl under the condition of middle pressure which takes the substance containing iron as the reaction material, carbon monoxide as a reaction gas and the sulfur compounds as a catalyst. Under the operation temperature of 120-250 DEG C and the reaction pressure of 3.0-8.5MPa, the conversion rate of the iron is up to more than 86 percent. The invention shortens the reaction time and reduces the carbonylation pressure.

Description

technical field [0001] The invention belongs to the fields of gas metallurgy and metal refining, and relates to a method for synthesizing iron pentacarbonyl under medium pressure conditions. Background technique [0002] As an important metal element, iron is widely used in various fields such as steel, construction, electronics, chemical industry, military affairs, new materials, medicine and food. The quality of iron raw materials directly affects the quality of products, so people are constantly looking for methods and technologies to improve the quality and performance of raw materials. Carbonyl iron powder has the characteristics of high purity, ultra-fine, high activity, etc. It is produced by gas metallurgy and belongs to high-tech products. It has various shapes and sizes, and there are many varieties. kind of field. Therefore, the development of carbonyl iron powder industry will drive the development of related industries: ①The development of radio industry (carb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/16
Inventor 胡斌徐广平朴东鹤慕新元夏春谷雷福伟熊绪茂
Owner JILIN JIEN NICKEL IND
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