Catalyst for preparation of decyl alcohols by gas-phase hydrogenation of decylenaldehydes and preparation method thereof

A catalyst, the technology of decenal, which is applied in the field of catalyst and preparation of decenal gas-phase hydrogenation to isodecyl alcohol, to achieve the effects of uniformity, increase of external surface area and reduction of resistance

Inactive Publication Date: 2008-05-28
SINOPEC NANJING RES INST OF CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And the catalyst of gas-phase hydrogenation of decenal to isodecyl alcohol, there

Method used

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  • Catalyst for preparation of decyl alcohols by gas-phase hydrogenation of decylenaldehydes and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0012] Take 500mL of 1.2M copper nitrate solution and 1710mL of 1.2M zinc nitrate solution and mix them. Co-precipitate the mixed solution and sodium carbonate solution in a sedimentation tank with stirring. Stir and age for 30 minutes, add about 23.8g of alumina after washing, filter, dry, and granulate. The dried particles are calcined at 320°C-400°C for 3-4h, and then pressed into tablets to obtain catalyst sample 1.

example 2

[0014] Take 1000mL of 1.2M copper nitrate solution and 2000mL of 1.2M zinc nitrate solution and mix them. Co-precipitate the mixed solution and sodium carbonate solution in a sedimentation tank with stirring. Stir and age for 30 minutes, add about 3.0 g of alumina after washing, filter, dry, and granulate. The dried particles are calcined at 320°C-400°C for 3-4 hours, and then pressed into tablets to obtain catalyst sample 2.

example 3

[0016] Take 1000mL of 1.2M copper nitrate solution and 2000mL of 1.2M zinc nitrate solution and mix them. Co-precipitate the mixed solution and sodium carbonate solution in a sedimentation tank with stirring. Stir and age for 30 minutes, add about 3.0g of alumina and 2.0g of coagent after washing, then filter, dry, and granulate. The dried particles are roasted at 320°C-400°C for 3-4h, and then pressed into tablets to obtain Catalyst Sample 3.

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Abstract

A catalyst used for making isodecyl alcohol with decene aldehyde gas phase hydrogenation and a preparation method belong to the technical field of catalyst. The catalyst uses coprecipitation to prepare, and mainly comprises copper oxide, zinc oxide, alumina, the content of which is respectively 20%-70%, 28%-70%, and 1%-10%. The active assistant has the content of 0.1%-2.0% (m/m). The catalyst is used for making isodecyl alcohol with decene aldehyde gas phase hydrogenation, with higher decene aldehyde conversion rate (more than or equal to 99.1%) and isodecyl alcohol selectivity (more than or equal to 96.4%).

Description

Technical field: [0001] The invention belongs to the technical field of catalysts, and in particular relates to a catalyst for producing isodecyl alcohol by gas-phase hydrogenation of decenal and a preparation method thereof. Background technique: [0002] Isodecyl alcohol (2-propylheptyl alcohol) is an important organic chemical raw material, which is mainly used in plasticizers. The raw material is mainly derived from C4 hydrocarbon resources produced by refineries and ethylene plants. Isodecyl alcohol is obtained by condensing valeraldehyde into decenal (2-propyl 2-heptenal), and then decenal is hydrogenated, and the hydrogenation reaction has two methods of gas-phase and liquid-phase hydrogenation. The liquid phase method usually reacts under the conditions of relatively high pressure and temperature. There are domestic literature reports, using NiO / Al 2 o 3 The catalyst is reacted in a micro-fixed bed evaluation device. At a pressure of 2.0MPa to 5.0MPa and a temperat...

Claims

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Application Information

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IPC IPC(8): B01J23/80B01J35/02
Inventor 孙中华谢祥祝东红殷玉圣吕锋
Owner SINOPEC NANJING RES INST OF CHEM IND CO LTD
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