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Catalyst for synthetizing compound of dicarbon containing oxygen by CO hydrogenation

A catalyst and compound technology, applied in metal/metal oxide/metal hydroxide catalysts, preparation of organic compounds, catalysts for physical/chemical processes, etc. Highly active, highly active effect

Inactive Publication Date: 2006-01-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since Rh is a noble metal, the excessively high loading of Rh limits the industrial application of these catalysts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: with certain concentration Ti (OC 2 h 5 ) 4 Immerse 20-40 mesh silica gel carrier with ethanol solution, dry at 110°C for 5 hours after the solvent ethanol volatilizes, and bake at 700°C for 4 hours to prepare TiO with 0.0025wt.% Ti content 2 / SiO 2 . With a certain concentration of RhCl 3 , Mn(NO 3 ) 2 、LiNO 3 and H 2 IrCl 6 Aqueous solution impregnated the above TiO 2 / SiO 2 , dried at 110°C for 20 hours to obtain a spare 1%Rh-2%Mn-0.0025%Ti-0.075%Li-0.5%Ir / SiO 2 catalyst.

Embodiment 2

[0016] Embodiment 2: with certain concentration Ti (OC 2 h 5 ) 4 Immerse 20-40 mesh silica gel carrier in ethanol solution, dry at 110°C for 5 hours after the solvent ethanol volatilizes, and roast at 600°C for 4 hours to prepare TiO containing 0.005% titanium 2 / SiO 2 . All the other are the same as in Example 1 to obtain spare 1%Rh-2%Mn-0.005%Ti-0.075%Li-0.5%Ir / SiO 2 catalyst.

Embodiment 3

[0017] Embodiment 3: with the same method of embodiment 1, make the TiO containing Ti as 0.0025wt% earlier 2 / SiO 2 , and then with a certain concentration of RhCl 3 , Mn(NO 3 ) 2 、LiNO 3 and Fe(NO 3 ) 2 Aqueous solution impregnated the above TiO 2 / SiO 2 , dried at 110°C for 20 hours to obtain spare 1%Rh-2%Mn-0.0025%Ti-0.075%Li-0.05%Fe / SiO 2 catalyst.

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Abstract

A catalyst Rh-Mn-Ti-M1-M2 / SiO2, where M1 is alkali metal (Li or Na) and M2 is chosen from Ru, Fe and Ir features that the wt ratio of Rh is 0.1-3%, Mn / Rh is 0.5-12, Ti / Rh is 0.001-3, M1 / Rh is 0.01-1 and M2 / Rh is 0.1-1. Its advantage is high catalytic activity.

Description

technical field [0001] The invention relates to a catalyst for CO hydrogenation to synthesize two-carbon oxygen-containing compounds. [0002] The present invention also relates to a method for preparing the above-mentioned catalyst. [0003] The invention also relates to the use of the catalysts described above. technical background [0004] Two-carbon oxygenated compounds such as ethanol and acetaldehyde are important chemical raw materials, especially ethanol as a gasoline additive and fuel to increase the octane value has received extensive attention. Rh-based catalysts for selectively synthesizing two-carbon oxygenates such as ethanol have received special attention because of their unique selectivity to the formation of two-carbon oxygenates. Has applied for a large number of Rh-based catalyst patents for the synthesis of two-carbon oxygenates at home and abroad. Its purpose is to improve the activity and selectivity of synthesizing two-carbon oxygen-containing comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/46B01J23/89B01J37/02C07C29/158C07C31/08
Inventor 罗洪原丁云杰陈维苗
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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