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Preparation method of aniline hydrogenating amorphous nickel-aluminum catalyst

A technology of amorphous nickel and catalysts, which is applied in the field of preparation of amorphous nickel-aluminum catalysts for aniline hydrogenation, can solve problems such as limiting the scope of application, and achieve good catalytic effects, high thermal stability, and a large number of effects

Inactive Publication Date: 2013-09-18
SUZHOU TAILIDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Amorphous alloy is a material in a sub-equilibrium state, which has a tendency to transform into an equilibrium state crystal. This instability of amorphous alloys limits its application range, and can only be used at lower temperatures. use

Method used

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Examples

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Embodiment 1

[0014] A kind of preparation method of aniline hydrogenation amorphous nickel-aluminum catalyst is provided, comprising the steps of:

[0015] (1) Pretreating the alloy to break the alloy, the size of the broken alloy is 7mm;

[0016] (2) Put the crushed alloy into the melting furnace and melt it. The molten alloy is sprayed with nitrogen from the lower nozzle of the melting furnace onto the copper roller with cooling water and rotating at high speed, and is cooled rapidly And throw it along the tangent line of the copper roll to obtain an amorphous alloy.

Embodiment 2

[0018] A kind of preparation method of aniline hydrogenation amorphous nickel-aluminum catalyst is provided, comprising the steps of:

[0019] (1) Pretreating the alloy to break the alloy, and the broken size of the alloy is 9mm;

[0020] (2) Put the crushed alloy into the melting furnace and melt it. The molten alloy is pressure-sprayed from the lower nozzle of the melting furnace to the copper roller with cooling water and high-speed rotation through nitrogen-argon mixed gas , rapidly cooled and thrown along the tangent of the copper roll to obtain an amorphous alloy.

[0021] The preparation method of the amorphous nickel-aluminum catalyst for aniline hydrogenation disclosed by the present invention, the preparation of amorphous nickel needs to modify the surface of the alloy in advance, and the commonly used modification methods include: crushing of the alloy, acid or alkali corrosion or use at high temperature The surface of the prepared alloy is uniform and the acti...

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Abstract

The invention discloses a preparation method of an aniline hydrogenating amorphous nickel-aluminum catalyst. The preparation method of the aniline hydrogenating amorphous nickel-aluminum catalyst comprises the following steps: pretreating an alloy to crush the alloy; and putting the crushed alloy into a melting furnace for melting the alloy, pressing the melted alloy onto a copper roll from a spray nozzle on the lower part of the melting furnace through inert gas, quickly cooling, and throwing out from a tangent line of the copper roll to obtain an amorphous alloy. According to the preparation method, under the same condition, the amorphous alloy catalyst has high hydrogenating activity, relatively high magnetism and thermal stability, more active centers and better catalyzing effect in aniline hydrogenation.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a method for preparing aniline hydrogenation amorphous nickel-aluminum catalyst. Background technique [0002] The microscopic structure of various substances in nature can be divided into two categories: ordered structure and disordered structure according to the arrangement state of its constituent atoms. Crystals are typically ordered structures, while gases, liquids, and amorphous solids are disordered structures. Among them, the amorphous solid is a metal or alloy solid without a three-dimensional periodic arrangement of atoms, and it does not have a long-range ordered crystal lattice arrangement beyond the range of several atomic distances. Amorphous solid materials include types such as amorphous inorganic materials such as glasses, amorphous polymers, and amorphous alloys. [0003] Compared with ordinary crystalline metals and alloys, amorphous metals and alloys ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06B01J23/755
Inventor 华凤男
Owner SUZHOU TAILIDA TECH
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