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Method for producing isopropanol by liquid-phase hydrogenation of acetone

A technology of isopropanol and acetone liquid, applied in the field of isopropanol production by liquid phase hydrogenation of acetone, can solve the problems of high catalyst price and high reaction pressure, and achieve the effect of good technical effect

Active Publication Date: 2015-08-12
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the existing technology of acetone hydrogenation to produce isopropanol has the problems of high catalyst price and high reaction pressure, and a method for producing isopropanol by liquid-phase hydrogenation of acetone is provided

Method used

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  • Method for producing isopropanol by liquid-phase hydrogenation of acetone
  • Method for producing isopropanol by liquid-phase hydrogenation of acetone

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Embodiment 1

[0014] Catalyst 1: will be made of 5.0g Mg(NO 3 ) 2 .6H 2 A solution composed of O and 10.0 g of water is impregnated on 10.0 g of alumina powder by equal-volume impregnation, then dried at 120 ° C, and roasted at 1100 ° C to obtain a catalyst carrier, which is mixed with 50.0 g of water and beaten to obtain slurry I , the solution composed of 18.0g nickel nitrate hexahydrate solution, 68.0g sodium carbonate and 100.0g water will be dropped into the slurry I for reaction at the same time. After aging for 2 hours, the precipitate was washed and filtered, dried at 120°C for 12 hours, calcined at 400°C for 4 hours, and then pressed into tablets to obtain Catalyst 1, whose composition was 30%NiO-5%MgO-65%Al 2 o 3 . Take 3.0g of the catalyst, 20.0g of acetone, and 100.0g of isopropanol, and carry out hydrogenation reaction of acetone in a 300ml autoclave. The reaction temperature is 120°C, the reaction pressure is 4.0MPa, and the reaction time is 4.0h. The reaction results are ...

Embodiment 2～10

[0015] Examples 2-10 (catalysts 2-10), the catalysts were prepared according to the steps in Example 1, only the composition of the materials was changed, and the composition of the materials of the catalysts is shown in Table 1. Take 3.0g of catalyst catalyst, 20.0g of acetone, and 100.0g of isopropanol, and carry out acetone hydrogenation reaction in a 300ml autoclave for acetone hydrogenation reaction. The reaction temperature is 120°C, the reaction pressure is 4.0MPa, and the reaction time is 4.0h. The reaction results are shown in Table 2.

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Abstract

The invention relates to a method for preparing isopropanol through acetone solution hydrogenation. The method mainly solves the problems of high catalyst price and high reaction pressure in the isopropanol production process of the existing preparation technology. According to the method, acetone and hydrogen gas are used as raw materials, the isopropanol is used as solvents, the raw materials are in contact with the catalysts under the conditions that the reaction pressure is 1.0 to 5.0MPa and the reaction temperature is 120 to 200 DEG C, and the isopropanol is generated through reaction, wherein the used catalysts comprise the following ingredients in percentage by weight: a, 10.0 to 40.0 percent of NiO; b, 55.0 to 80.0 percent of Al2O3; and c, 1.0 to 10.0 percent of auxiliary agents selected from at least one kind of materials from SiO2, MgO, ZrO2, BaO, CeO2 and CaO. Through the technical scheme, the problems are perfectly solved, and the method can be used for isopropanol preparation through acetone hydrogenation.

Description

technical field [0001] The invention relates to a method for preparing isopropanol, in particular to a method for preparing isopropanol by liquid-phase hydrogenation of acetone. Background technique [0002] At present, 80% of the world's phenol-acetone production uses the cumene production process, while about 98% of the production process in my country uses the cumene method. The production of phenol by the cumene method mainly uses propylene as the raw material. Using this process, for every ton of phenol produced, about 0.62 tons of acetone will be co-produced. In recent years, in order to meet the growing demand for phenol, many phenol manufacturers at home and abroad have expanded or built new production facilities. The shortage of propylene resources has restricted the increase of phenol production in my country, and the situation that phenol needs to rely heavily on imports will continue. From 2008 to 2011, the capacity of new and expanded phenol plants in the world...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C31/10C07C29/145B01J23/755B01J23/78B01J23/83
Inventor 王辉刘仲能侯闽渤郭友娣
Owner CHINA PETROLEUM & CHEM CORP
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