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Adsorbent, method for preparing aluminum hydroxide and application

A technology for the reaction of aluminum hydroxide and aluminum water, applied in chemical instruments and methods, preparation of alumina/hydroxide, reagents, etc., can solve the problems of single particle size and difficult preparation

Active Publication Date: 2021-09-24
上交赛孚尔(包头)新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] This application provides an adsorbent, a method for preparing aluminum hydroxide and its application, so as to partially or completely improve or even solve the problem that it is difficult to prepare aluminum hydroxide with a specific shape and a single particle size

Method used

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  • Adsorbent, method for preparing aluminum hydroxide and application
  • Adsorbent, method for preparing aluminum hydroxide and application
  • Adsorbent, method for preparing aluminum hydroxide and application

Examples

Experimental program
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Embodiment 1-1

[0074] Inject water into the reaction kettle with the stirrer started and heated to the set temperature, and then add the catalyst for thorough mixing to form a solution. Then aluminum elemental substance is added therein and continuously stirred for reaction. After the reaction was completed, the filtrate was removed by filtration, and the obtained precipitate was dried at a set drying temperature under vacuum conditions. Wherein, the aluminum element is aluminum foil, the purity is 4N, and the added mass is 10 g. The liquid-solid ratio between the volume of the catalyst and the mass of aluminum is 5:1 (g / L). The stirring speed is 800r / min, the reaction temperature is 80°C, the reaction time is 4h, the drying temperature is 80°C, and the drying time is 24h. The amount of alkylammonium hydroxide added is 1% of the total solution volume.

[0075] The other embodiments are carried out according to the process of Example 1-1, and the main difference lies in the composition of ...

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Abstract

The invention discloses an adsorbent, a method for preparing aluminum hydroxide and application, and belongs to the field of material chemical industry. The preparation method comprises the following steps: adding an aluminum simple substance into the solution under stirring at the temperature of 40-100 DEG C to carry out aluminum-water reaction, and drying reaction precipitates at the temperature of 70-100 DEG C, wherein the catalyst comprises an organic guanidine compound, an organic amine compound, the mixture of the organic amine compound and alkyl ammonium hydroxide, or inorganic ammonium salt. According to the method, aluminum hydroxide with the specific shape and single particle size distribution can be obtained.

Description

technical field [0001] The application relates to the field of material chemical industry, in particular, to an adsorbent, a method for preparing aluminum hydroxide and its application. Background technique [0002] Aluminum hydroxide is widely used in ceramics, medicine, etc. Aluminum hydroxide with different properties determines the use of aluminum hydroxide. The correlation between the performance and the preparation method determines that the difference in the preparation method of aluminum hydroxide will also determine the application of the product. [0003] There are many ways to prepare aluminum hydroxide. At present, the industrial production methods of aluminum hydroxide mainly include Bayer method, sintering method, hydrothermal method and so on. [0004] The traditional process seed crystal decomposition method is mainly aimed at the preparation of aluminum hydroxide by the Bayer process. The aluminum hydroxide produced by the reaction has high impurity conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/42B01J21/04B01J32/00B01J20/08B01J20/30
CPCC01F7/428B01J21/04B01J20/08C01P2004/11C01P2004/50C01P2006/12C01P2006/16C01P2006/14C01P2004/12C01P2004/10C01P2004/03C01P2002/72C01P2006/80C01P2004/61C01P2004/16Y02P20/151
Inventor 张佼唐文奇黄威胡越朱希亮
Owner 上交赛孚尔(包头)新材料有限公司
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