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Method for preparing ruthenium-based catalyst by directly utilizing arsenic-ruthenium ore as well as product and application thereof

A ruthenium-based catalyst and arsenic ruthenium ore technology, which is applied in chemical instruments and methods, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problem of inapplicable direct utilization of arsenic ruthenium ore and many pollutants on the surface of ruthenium-based catalytic materials , poor performance of catalytic materials and other problems, to achieve the effect of superior performance, high conversion rate of alcohol amination, and low raw material cost

Active Publication Date: 2020-08-25
KANFORT JIANGMEN ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the surface pollutants of the ruthenium-based catalytic material prepared by the above method are more, and the performance of the catalytic material is poor.
[0005] Therefore, combined with the technical characteristics of the preparation of ruthenium-based catalytic materials, it can be seen that the traditional preparation methods of ruthenium-based catalytic materials are not suitable for the direct utilization of arsenite

Method used

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  • Method for preparing ruthenium-based catalyst by directly utilizing arsenic-ruthenium ore as well as product and application thereof
  • Method for preparing ruthenium-based catalyst by directly utilizing arsenic-ruthenium ore as well as product and application thereof
  • Method for preparing ruthenium-based catalyst by directly utilizing arsenic-ruthenium ore as well as product and application thereof

Examples

Experimental program
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Effect test

Embodiment 1 3

[0024] Example 1 Effect of the mass ratio of ferric chloride and arsenite predissolved slurry on the alcohol amination conversion rate of the prepared ruthenium-based catalyst Preparation of ruthenium-based catalytic material: Grind arsenic ruthenium ore and pass through a 200-mesh sieve to obtain arsenic ruthenium ore powder. According to the ratio of arsenite powder to water-solid-liquid 1: 2 mg / mL, arsenite powder and water were mixed, stirred under the condition of 120 rpm, and simultaneously irradiated with low-temperature plasma for 1 hour to obtain arsenite pre-dissolved slurry, wherein the low-temperature The action voltage of plasma irradiation was 10 kV, and the action atmosphere was oxygen. According to the mass ratio of ferric chloride and arsenite ruthenium ore predissolved slurry: 2.5:100, 3.5:100, 4.5:100, 5:100, 10:100, 15:100, 15.5:100, 16.5:100, 17.5:100, Mix ferric chloride and arsenite pre-dissolved slurry, and stir for 0.5 hour to obtain nine groups of ars...

Embodiment 2

[0030] Example 2 Effect of mixed acid and arsenic passivation arsenite predissolved slurry volume ratio on the alcohol amination conversion rate of the prepared ruthenium-based catalyst

[0031]Preparation of ruthenium-based catalytic material: grinding arsenic ruthenium ore and passing through a 300-mesh sieve to obtain arsenic ruthenium ore powder. According to the ratio of ruthenium arsenite powder to water-solid-liquid ratio of 1:3 mg / mL, ruthenium arsenite powder was mixed with water, stirred at 300 rpm, and irradiated with low-temperature plasma for 1.5 hours at the same time to obtain a pre-dissolved slurry of ruthenium arsenite, wherein The action voltage of the plasma irradiation was 20kV, and the action atmosphere was oxygen. According to the mass ratio of ferric chloride and arsenite pre-dissolved slurry of 15:100, the ferric chloride and arsenite pre-dissolved slurry were mixed and stirred for 1 hour to obtain arsenic-passivated arsenite pre-dissolved slurry. Then...

Embodiment 3

[0036] Embodiment 3 hydrochloric acid and phosphoric acid molar ratio influence on the alcohol amination conversion rate of prepared ruthenium-based catalyst

[0037] Preparation of ruthenium-based catalytic material: grinding arsenic ruthenium ore and passing through a 400-mesh sieve to obtain arsenic ruthenium ore powder. According to the ratio of arsenite powder and water-solid-liquid ratio of 1:4mg / mL, arsenite powder and water were mixed, stirred under the condition of 480rpm rotating speed, and low-temperature plasma was irradiated for 2 hours at the same time to obtain arsenite pre-dissolved slurry, wherein the low temperature The action voltage of plasma irradiation was 30 kV, and the action atmosphere was oxygen. According to the mass ratio of ferric chloride and arsenite pre-dissolved slurry of 15:100, ferric chloride and arsenite pre-dissolved slurry were mixed and stirred for 1.5 hours to obtain arsenic-passivated arsenite-arsenite pre-dissolved slurry. Then add m...

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Abstract

The invention discloses a method for preparing a ruthenium-based catalyst by directly utilizing arsenic-ruthenium ore. The method comprises the following steps: mixing the arsenic-ruthenium ore powderwith water and then carrying out low-temperature plasma irradiation to obtain arsenic-ruthenium ore pre-dissolved slurry; adding ferric trichloride, mixing to obtain arsenic-passivated arsenic-ruthenium ore pre-dissolved slurry, adding acid into the arsenic-passivated arsenic-ruthenium ore pre-dissolved slurry, uniformly stirring to obtain passivated arsenic-ruthenium ore pre-dissolved acidifiedslurry, carrying out low-temperature plasma irradiation again to obtain ruthenium-based catalyst slurry, carrying out solid-liquid separation, drying and grinding to obtain the ruthenium-based catalyst. The invention also discloses the catalyst prepared by the method and application thereof. Ruthenium does not need to be separated from ore in the preparation process, a reducing agent and a stabilizing agent do not need to be additionally added, and the prepared ruthenium-based catalytic material is excellent in performance and high in alcohol amination conversion rate and is superior to a traditional ruthenium nano catalytic material.

Description

technical field [0001] The invention relates to the field of technology research and development of high-value utilization of mineral resources, in particular to a method for directly using arsenic ruthenium ore to prepare a ruthenium-based catalyst and its product and application. Background technique [0002] The process of smelting ruthenium-containing compounds with arsenic-ruthenium ore is easy to produce a large amount of arsenic pollutants, which will seriously harm the surrounding ecological environment. In order to follow the idea of ​​sustainable development, it is necessary to develop a technology for the harmless utilization of arsenic ruthenium ore. At present, the preparation of ruthenium-based catalytic materials is mainly realized through three ways, including: hydration ruthenium trichloride reduction method, polyol method and organometallic ruthenium precursor method. [0003] The preparation of ruthenium-based catalytic materials by hydration of ruthenium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01J37/34C07C209/16C07C211/03
CPCB01J23/8906B01J37/349C07C209/16B01J35/23C07C211/03Y02P20/584
Inventor 黄涛宋东平金俊勋刘龙飞张树文周璐璐
Owner KANFORT JIANGMEN ENVIRONMENTAL TECH CO LTD