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Iron-containing catalyst, and preparation method and application thereof

A catalyst and a technology for catalytic activity, applied in the field of iron-containing catalysts and their preparation, can solve the problems of high energy consumption, high cost and the like, and achieve the effect of good catalytic performance

Pending Publication Date: 2019-12-20
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For more than a century, people have carried out a lot of research on iron catalysts, and developed iron catalysts of various formulations. These catalysts have greatly improved the activity of ammonia synthesis, but they are essentially different from the multi-component iron catalysts of Haber et al. There is no difference, the current synthetic ammonia industry is still in a situation of high energy consumption and high cost

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  • Iron-containing catalyst, and preparation method and application thereof
  • Iron-containing catalyst, and preparation method and application thereof
  • Iron-containing catalyst, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Embodiment 1: preparation embodiment

[0039]Based on the principle of isotope separation, the natural iron oxide is separated through the F-3 magnetic separation device of China Institute of Atomic Energy. Fe-54-20. The separated iron oxide was collected at the outlet, and detected by ICP-MS, the abundance of Fe-54 was 20%, the abundance of Fe-56 was 70%, and the abundance of Fe-57 was 10%.

[0040] Convert the above separated iron oxide into ferric nitrate and prepare a 1mol / L solution, convert the nickel oxide with natural isotope abundance into nickel nitrate and prepare a 1mol / L solution, use ammonium carbonate as the alkali source, pass water Catalyst is prepared by thermal method, the specific method is as follows:

[0041] Take 20ml of ferric nitrate and nickel nitrate solutions, mix them, add 2.0g of sodium acetate, stir for 1h, keep the temperature at 40°C for 2h, and dry at 80°C to obtain the catalyst precursor. The catalyst precursor was added to 50ml of ...

Embodiment 2

[0042] Embodiment 2: preparation embodiment

[0043] Based on the principle of isotope separation, the natural iron oxide is separated through the F-3 magnetic separation device of China Institute of Atomic Energy. Fe-54-100. The separated iron oxide is collected at the outlet, and detected by ICP-MS, the Fe-54 abundance is 100%.

[0044] Convert the above separated iron oxide into ferric nitrate and prepare a 1mol / L solution, convert the nickel oxide with natural isotope abundance into nickel nitrate and prepare a 1mol / L solution, use ammonium carbonate as the alkali source, pass water Catalyst is prepared by thermal method, the specific method is as follows:

[0045] Take 20ml of ferric nitrate and nickel nitrate solutions, mix them, add 2.0g of sodium acetate, stir for 1h, keep the temperature at 40°C for 2h, and dry at 80°C to obtain the catalyst precursor. The catalyst precursor was added to 50ml of urea solution with a concentration of 2.0mol / L, hydrothermally treated...

Embodiment 3

[0046] Embodiment 3: preparation embodiment

[0047] Based on the principle of isotope separation, the natural iron oxide is separated through the F-3 magnetic separation device of China Institute of Atomic Energy. Fe-56-20. The separated iron oxide was collected at the outlet, and detected by ICP-MS, the abundance of Fe-56 was 20%, the abundance of Fe-57 was 40%, and the abundance of Fe-58 was 40%.

[0048] Convert the above separated iron oxide into ferric nitrate and prepare a 1mol / L solution, convert the nickel oxide with natural isotope abundance into nickel nitrate and prepare a 1mol / L solution, use ammonium carbonate as the alkali source, pass water Catalyst is prepared by thermal method, the specific method is as follows:

[0049] Take 20ml of ferric nitrate and nickel nitrate solutions, mix them, add 2.0g of sodium acetate, stir for 1h, keep the temperature at 40°C for 2h, and dry at 80°C to obtain the catalyst precursor. The catalyst precursor was added to 50ml of...

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Abstract

The invention belongs to the technical field of catalysts and relates to an iron-containing catalyst, and a preparation method and application thereof. The catalyst comprises a catalytically active substance, wherein the catalytically active substance comprises metallic iron or a compound of the metallic iron, and iron elements in the metallic iron or in the compound of the metallic iron are composed of non-radioactive isotopes with a composition and / or abundance changed relative to the composition and / or abundance of natural iron element, wherein the abundance of at least one non-radioactiveisotope changes by 1 / 20 or above on the basis of natural abundance and is not less than 20%. By using the catalyst, and the preparation method and application thereof, the obtained iron-containing catalyst has better catalytic performance.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and relates to an iron-containing catalyst, a preparation method and application thereof. Background technique [0002] Catalyst materials and catalytic technology are one of the basic and key materials and technologies for the development of today's chemical industry. In modern industry, the output value generated by the use of catalytic technology has accounted for about 30% of the total output value of the national economy. [0003] Iron is a transition metal element with a wide distribution, accounting for 4.75% of the earth's crust. It can be used to make catalysts, catalyze synthesis of ammonia, electrocatalysis, photocatalysis, reduction of carbon dioxide, hydrogenation and other reactions. [0004] The main disadvantages of iron-based catalysts are low utilization rate, low anti-poisoning ability and low stability. In response to these problems, a large number of researchers around th...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J23/755B01J23/888B01J35/00C01C1/04C25B1/04C25B11/06
CPCB01J23/007B01J23/755B01J23/888B01J23/745B01J23/002C25B1/04C01C1/0411B01J2523/00C25B11/091B01J35/33B01J2523/13B01J2523/22B01J2523/23B01J2523/31B01J2523/69B01J2523/842Y02P20/52Y02E60/36
Inventor 肖松涛欧阳应根叶国安王玲钰刘协春
Owner CHINA INSTITUTE OF ATOMIC ENERGY