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Method for removing sulfureted hydrogen from mixture containing iron pentacarbonyl or nickel tetracarbonyl

A technology of nickel tetracarbonyl and iron pentacarbonyl, applied in the field of hydrogen sulfide removal, can solve the problems of harsh production equipment, unsatisfactory iron extraction rate, slow extraction rate and the like

Active Publication Date: 2010-07-28
吉林卓创新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since iron carbonyl and nickel carbonyl are liquid at room temperature, nickel and iron resources can be utilized in gas smelting or gas refining technology to achieve high-quality utilization of resources, but the gas refining process using the simplest fixed bed as the reactor They are all carried out under high pressure conditions, which not only imposes strict requirements on the production equipment, but also nickel carbonyl, iron carbonyl, and carbon monoxide are all toxic substances, thus increasing the risk factor of operation
Although high-pressure production is used, the extraction rate of iron and nickel is relatively slow, and the extraction rate of iron is not satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 7.55g of Cu(NO) 2 ·6H 2 O, 50.5g of Fe(NO 3 ) 3 9H 2 After O is dissolved, loaded on 50.0g γ-Al 2 o 3 Dry at 120°C for 2 hours and set aside. Then weigh 1.0g of CaO and 0.5g of KOH, dissolve them in an appropriate amount of water, and impregnate the same amount into the above-mentioned dried γ-Al 2 o 3 Above, the obtained catalyst was dried at 120°C for 2 hours and calcined at 350°C for 4 hours, and the prepared catalyst was used for future use. Weigh 10g of catalyst and load it into a reaction tube, react at 30°C, and feed CO, iron pentacarbonyl gas-liquid mixture, 1% H 2 S, trace N 2 , trace O 2 , trace H 2 Mixed gas with a small amount of methane, etc., the space velocity is 2000h -1 , to detect H in the outlet gas after passing through the catalyst 2 S content <0.1ppm.

Embodiment 2

[0014] 37.8g of Fe(NO) 3 9H 2 O, 20.6g of Zn(NO 3 ) 2 ·6H 2 After O is dissolved, loaded on 50.0g γ-Al 2 o 3 Dry at 120°C for 2 hours and set aside. Then weigh 1.0g of CaO and 0.5g of KOH, dissolve them in an appropriate amount of water, and impregnate the same amount into the above-mentioned dried γ-Al 2 o 3 Above, the obtained catalyst was dried at 120°C for 2 hours and calcined at 350°C for 4 hours, and the prepared catalyst was used for future use. Weigh 10g of catalyst and load it into a reaction tube, react at 30°C, and feed CO, carbonyl iron gas-liquid mixture, 1.2% H 2 S, trace N 2 , trace O 2 , trace H 2 Mixed gas with a small amount of methane, etc., the space velocity is 2000h -1 , to detect H in the outlet gas after passing through the catalyst 2 S content <0.1ppm.

Embodiment 3

[0016] 50.5g of Fe(NO) 3 9H 2 O, 9.7g of Ni(NO 3 ) 2 ·6H 2 After O is dissolved, loaded on 50.0g γ-Al 2 o 3 Dry at 120°C for 2 hours and set aside. Then weigh 1.0g of CaO and 0.5g of KOH, dissolve them in an appropriate amount of water, and impregnate the same amount into the above-mentioned dried γ-Al 2 o 3 Above, the obtained catalyst was dried at 120°C for 2 hours and calcined at 350°C for 4 hours, and the prepared catalyst was used for future use. Weigh 10g of catalyst and load it into a reaction tube, react at 30°C, and feed CO, carbonyl iron gas-liquid mixture, 2% H 2 S, trace N 2 , trace O 2 , trace H 2 Mixed gas with a small amount of methane, etc., the space velocity is 2000h -1 , to detect H in the outlet gas after passing through the catalyst 2 S content <0.1ppm.

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Abstract

The invention discloses a method for removing sulfureted hydrogen from mixture containing metal carbonyl (nickel carbonyl or iron carbonyl). The method includes that the catalyst is loaded in a fixed bed reactor; at the temperature of 5-250 DEG C, the CO mixed gas containing the nickel carbonyl or the iron carbonyl is added to the fixed bed reactor; under the air speed of 800-4000h-1, the sulfureted hydrogen in the mixed gas can be removed to below 0.1ppm.

Description

technical field [0001] The invention relates to a method for removing hydrogen sulfide in a mixture containing metal carbonyl (nickel carbonyl or iron carbonyl). technical background [0002] With the gradual depletion of resources and the continuous deterioration of the environment, people are eager for advanced smelting and refining technologies, especially clean, environmentally friendly and energy-saving production technologies. Gas smelting or refining technology is an advanced technology that selectively converts a certain substance in the raw material into the corresponding metal carbonyl through carbon monoxide, and then obtains ultra-pure metal powder products or other products through the decomposition of the metal carbonyl. Among them, CO Recyclable, the reaction slag is the enrichment of other mineral elements and can be better utilized, no waste discharge, compared with other technologies (hydrometallurgy and pyrometallurgy), it is the cleanest and environmental...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/02C01G49/16
Inventor 徐广平胡斌朴东鹤熊绪茂雷福伟慕新元唐思琪张晓宏袁凤艳华曼王欣玫
Owner 吉林卓创新材料有限公司
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