Organic acid treatment method for isopropanol aluminum waste catalyst and device thereof

A technology of aluminum isopropoxide and waste catalyst, which is applied in the field of chemical technology, can solve problems such as blockage of pipelines and storage containers, loss of useful substances, easy moisture absorption, etc., and achieve the effects of avoiding environmental protection problems, ensuring repeated use, and increasing benefits

Inactive Publication Date: 2018-12-21
齐翔华利新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, there will be some by-products and polymer accumulation during the reaction process. These by-products are mixed with the aluminum isopropoxide catalyst to form a viscous aluminum isopropoxide waste catalyst. This viscous Aluminum-containing mixture, which is easy to absorb moisture and solidify into hard lumps, thereby clogging pipes and storage containers
At present, there i

Method used

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  • Organic acid treatment method for isopropanol aluminum waste catalyst and device thereof

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Effect test

Embodiment 1

[0025] Take 50g of the mixed product and 200g of acetic acid solution (wt%: 5%) for mixing and stirring. After stirring evenly, let it stand for stratification. The mass of the upper organic oil phase is 47g, and the lower layer contains 201g of aluminum-containing aqueous phase. The lower aqueous phase was flocculated and precipitated by heating, and the precipitate was filtered and dried to obtain 11.23 g of pseudo-boehmite powder.

Embodiment 2

[0027] Take 50g of the mixed product and 100g of acetic acid solution (wt%: 10%) for mixing and stirring. After stirring evenly, let it stand for stratification. The mass of the upper organic oil phase is 48g, and the lower layer contains 101g of aluminum-containing aqueous phase. The lower aqueous phase was flocculated and precipitated by heating, and the precipitate was filtered and dried to obtain 11.19 g of pseudo-boehmite powder.

Embodiment 3

[0029] Take 50g of the mixed product and 67g of acetic acid solution (wt%: 15%) for mixing and stirring. After stirring evenly, let it stand for stratification. The mass of the upper organic oil phase is 47g, and the lower aluminum-containing aqueous phase is 69g. The lower aqueous phase was flocculated and precipitated by heating, and the precipitate was filtered and dried to obtain 11.27 g of pseudo-boehmite powder.

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Abstract

The invention relates to the technical field of chemical engineering technology, and particularly discloses an organic acid treatment method for an isopropanol aluminum waste catalyst and a device thereof. The organic acid treatment method comprises the following steps of using an organic acid solution as an acidolysis extracting agent; extracting the aluminum element in the mixture of produced isopropanol aluminum waste catalyst and byproducts thereof in the reduction process of unsaturated aldehyde ketone, so as to separate an organic phase and an inorganic phase; further treating the waterphase, so as to obtain pseudo-boehmite with high added value. The organic acid treatment method has the advantages that the operation is simple and convenient, and the green and environment-friendly effects are realized; by adopting the moderate method, the problem of treatment of the organic acid treatment method is solved, and the benefit is certainly increased; the repeated utilization effect of filtrate is guaranteed.

Description

(1) Technical field [0001] The invention relates to the technical field of chemical technology, in particular to an organic acid treatment method and a device for waste aluminum isopropoxide catalyst. (2) Background technology [0002] As an important chemical raw material, aluminum isopropoxide is often used as a crosslinking agent for adhesives because of its unique physical and chemical properties. agent. In addition, in the field of organic synthesis, aluminum isopropoxide is a highly selective aldehyde and ketone reduction catalyst for unsaturated aldehydes and ketones. Compared with other reduction catalysts, its advantages are very obvious. When reducing unsaturated carbonyl compounds , has high selectivity to carbonyl, the reaction conditions are relatively mild, the reaction is very smooth, and it has almost no effect on the -NO2, C=C, -COOR and other groups in the compound. At the same time, the production process of aluminum isopropoxide is simple and the cost i...

Claims

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Application Information

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IPC IPC(8): C07C51/42C07C53/02C07C53/08C07C53/122C01F7/02
CPCC07C51/42C01F7/02C07C53/02C07C53/08C07C53/122
Inventor 钱庆安张云岩李善龙
Owner 齐翔华利新材料有限公司
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