Hydroformylation catalyst as well as preparation method and application thereof

A hydroformylation catalyst and catalyst technology, applied in the direction of carbon monoxide reaction preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of easy loss of active components, affecting application prospects, Conversion rate and selectivity are not high, to achieve the effect of reducing separation cost, long service life and reducing production cost

Active Publication Date: 2020-05-01
SHANDONG NHU VITAMIN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the conversion rate and selectivity of this system are not high, an...

Method used

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  • Hydroformylation catalyst as well as preparation method and application thereof
  • Hydroformylation catalyst as well as preparation method and application thereof
  • Hydroformylation catalyst as well as preparation method and application thereof

Examples

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preparation example Construction

[0045] Above-mentioned hydroformylation catalyst can be prepared by following method, and this preparation method comprises the following steps:

[0046] The first metal salt, the second metal salt and the third metal salt are prepared into a mixed salt solution as an immersion solution, the first metal salt is a metal salt of Rh, and the second metal salt is a metal of Ir, Ru, Os, Pt, and Pd One or more of the salts, the third metal salt is one or more of the metal salts of Mo, Zn, Mn, Fe, Co, V, Cu;

[0047] The carrier is immersed in the above impregnating solution, and the catalyst for isobutene hydroformylation is obtained through the steps of drying, calcining and reduction.

[0048] In some embodiments, the above-mentioned first metal salt, second metal salt and third metal salt may be nitrate, acetate, sulfate, chloride or oxalate of the corresponding metal. For example, the first metal salt may be rhodium nitrate, rhodium sulfate, rhodium acetate, rhodium chloride, o...

Embodiment 15

[0062] Example 1 5.0%Rh-0.1%Ir-1.0%Mo / Al 2 o 3 Catalyst preparation

[0063] Weigh 10g Al 2 o 3 Carrier, according to the mass percentage composition of carrier in catalyzer is 80.0% the quality of rhodium chloride, iridium chloride and molybdenum nitrate required for 5.0%Rh, 0.1%Ir, 1.0%Mo in the calculation catalyst, Each metal salt is weighed according to the calculated mass, and each metal salt is prepared into a mixed solution as an impregnating solution.

[0064] Will Al 2 o 3 The carrier was added to the impregnating solution at room temperature, stirred and adsorbed, dried at 80° C. for 12 hours after sufficient adsorption, and calcined at 500° C. for 4 hours to obtain a catalyst precursor.

[0065] The above catalyst precursor was placed in a hydrogen atmosphere at 200 ° C for 12 hours to obtain a 5.0% Rh-0.1% Ir-1.0% Mo / Al 2 o 3 Catalyst, denoted as catalyst A.

Embodiment 2

[0066] Example 2 10.0%Rh-0.05%Ru-0.05%Zn / ZrO 2 Catalyst preparation

[0067] Weigh 10g ZrO 2 Carrier, according to the mass percentage composition of carrier in catalyst is 80.0% the quality of the required rhodium nitrate, ruthenium chloride and zinc acetate in calculating catalyst load mass percentage composition 10.0%Rh, 0.05%Ru, 0.05%Zn, according to Calculate the mass obtained by weighing each metal salt, and prepare a mixed solution of each metal salt as an impregnating solution.

[0068] ZrO 2 The carrier was added into the impregnating solution at room temperature and stirred for adsorption. After fully adsorbed, it was dried at 120° C. for 4 hours, and calcined at 300° C. for 6 hours to obtain a catalyst precursor.

[0069] The above catalyst precursor was placed in a hydrogen atmosphere at 300°C for 2 hours to obtain a 10.0%Rh-0.05%Ru-0.05%Zn / ZrO 2 Catalyst, denoted as catalyst B.

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Abstract

The invention relates to a hydroformylation catalyst. The catalyst comprises an active component and a carrier for bearing the active component. The active components comprise a first active component, a second active component and a third active component; wherein the first active component is Rh and/or an oxide of Rh, the second active component is at least one metal of Ir, Ru, Os, Pt and Pd and/or an oxide of the metal, and the third active component is at least one metal of Mo, Zn, Mn, Fe, Co, V and Cu and/or an oxide of the metal. The invention also relates to a preparation method of thehydroformylation catalyst. The invention further relates to application of the hydroformylation catalyst in production of isovaleraldehyde through hydroformylation reaction of isobutene.

Description

technical field [0001] The invention relates to the technical field of organic chemical industry, in particular to a hydroformylation catalyst and its preparation method and application. Background technique [0002] Isovaleraldehyde, namely 3-methylbutyraldehyde, is a colorless liquid with an apple-like aroma when highly diluted, and a peach-like aroma when the concentration is lower than 10ppm. Isovaleraldehyde is a product with high added value. It is an edible flavor stipulated in my country and is mainly used to prepare various fruit flavors. Moreover, its derivatives, isovaleric acid, isopentylamine, and isovaleric acid ester compounds, can also be used as raw materials for food flavors and daily chemical flavors. In addition, isovaleraldehyde is also an important pharmaceutical intermediate, which can be used as the main raw material to further prepare drugs such as vitamin E and pregabalin, and has a wide range of uses. [0003] At present, there are three main syn...

Claims

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Application Information

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IPC IPC(8): B01J23/60B01J23/648B01J23/652B01J23/656B01J23/89B01J29/48C07C45/50C07C47/02
CPCB01J23/6525B01J23/60B01J23/6562B01J23/8906B01J23/8913B01J29/48B01J23/6482C07C45/50B01J2229/18C07C47/02
Inventor 乔胜超张玉霞毛建拥严宏岳黄高峰
Owner SHANDONG NHU VITAMIN CO LTD
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