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Ball-milling synthetic method of aluminum sulfide

A synthesis method, aluminum sulfide technology, applied in the direction of aluminum sulfide, aluminum sulfur compounds, etc., to achieve the effect of reducing costs, reducing tail gas treatment links, and high purity

Pending Publication Date: 2019-12-13
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a simple and economical method for producing high-purity aluminum sulfide with the help of ball milling commonly used in factories to address the shortcomings of the existing synthesis methods, which can effectively reduce the excessive dependence on high resource consumption during the synthesis of aluminum sulfide , the problem of producing harmful gases

Method used

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  • Ball-milling synthetic method of aluminum sulfide

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Take 0.58g of aluminum chloride and 0.3g of lithium sulfide powder, pour them into a mortar, grind and disperse evenly, put them into a ball mill jar, and then put the balls into the ball mill jar, wherein the ball-to-material ratio is 30:1, and the ball mill speed 500r / min, ball milling for 12 hours, after the ball milling, pour the obtained solid powder into absolute ethanol, then separate the solid and liquid by filtration, wash the solid powder three times with absolute ethanol, and finally put the solid at 60°C Drying at a lower temperature yields aluminum sulfide powder. The XRD figure of embodiment 1 reaction product is as follows figure 1 As shown, there is only the XRD peak of LiCl in the reaction product, and no XRD peak of other substances is observed. According to the type and number of atoms before and after the chemical reaction, there must be Al in the product. 2 S 3 produce. XRD picture as shown figure 1 shown.

Embodiment 2

[0028] Take 0.58g of aluminum chloride and 0.3g of lithium sulfide powder, pour them into a mortar, grind and disperse evenly, put them into a ball mill jar, and then put the balls into the ball mill jar, wherein the ball-to-material ratio is 50:1, and the ball mill speed 400r / min, ball milling for 12 hours, after the ball milling, pour the obtained solid powder into absolute ethanol, then separate the solid and liquid by filtration, wash the solid powder three times with absolute ethanol, and finally put the solid at 80°C Drying at a lower temperature yields aluminum sulfide powder.

Embodiment 3

[0030] Take 0.58g of aluminum chloride and 0.3g of lithium sulfide powder, pour them into a mortar, grind and disperse evenly, put them into a ball mill jar, and then put the balls into the ball mill jar, wherein the ball-to-material ratio is 40:1, and the ball mill speed 500r / min, ball milling for 24 hours, after the ball milling, pour the obtained solid powder into absolute ethanol, then separate the solid and liquid by filtration, wash the solid powder three times with absolute ethanol, and finally put the solid at 90°C Drying at a lower temperature yields aluminum sulfide powder.

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Abstract

The invention discloses a ball-milling synthetic method of aluminum sulfide, and belongs to the technical field of chemical synthesis. The method comprises the following steps: (1) weighing a certainamount of aluminum chloride and lithium sulfide; (2) uniformly mixing the powder, putting the uniformly mixed powder into a ball-milling tank, and carrying out a mechanical ball-milling reaction; and(3) separating the reacted solid powder to obtain the aluminum sulfide. Compared with an existing synthetic method, the synthetic method provided by the invention has the advantages that heating conditions do not need to be provided by the outside, the preparation process is simple, the reaction conditions are mild, and the synthesized aluminum sulfide has higher purity.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a method for synthesizing aluminum sulfide. Background technique [0002] Aluminum sulfide is an inorganic compound with the chemical formula Al 2 S 3 , the pure product is a white needle-like crystal, but the impurity that is usually seen is a yellow-gray dense substance. High-purity aluminum sulfide is often used as a fine chemical, pharmaceutical intermediate, material intermediate and semiconductor material. By compounding with electrode materials such as graphene oxide, Al 2 S 3 It can also be used in energy storage devices with better performance [Muhammad Faisal Iqbal, Mahmood-Ul-Hassan, et.al.High SpecificCapacitance and Energy density of Synthesized Graphene Oxide basedHierarchical Al2S3 Nanorambutan for Supercapacitor Applications, Electrochimica Acta, 2017, 246, 1097-1103]. Will Li 2 S and Al 2 S 3 Powder mixing, through solid-phase sint...

Claims

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Application Information

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IPC IPC(8): C01F7/70
CPCC01F7/70C01P2002/72
Inventor 梁初王凯王俊豪夏阳张俊黄辉张文魁甘永平
Owner ZHEJIANG UNIV OF TECH
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