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Acrylic acid catalyst and applications thereof

A catalyst and acrylic acid technology, applied in the direction of heterogeneous catalyst chemical elements, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of low conversion rate of acrolein, low yield of acrylic acid, etc. question

Inactive Publication Date: 2020-04-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is the problem of low conversion rate of acrolein and low yield of acrylic acid in existing catalysts, and a new catalyst for acrylic acid is provided, which has the characteristics of high conversion rate of acrolein and high yield of acrylic acid

Method used

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  • Acrylic acid catalyst and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] 1. Preparation of active element solution

[0074] Ammonium metavanadate (molecular formula: NH 4 VO 3 ) was dissolved in 200g of hot water at 80°C. Ammonium molybdate (molecular formula is: (NH 4 ) 2 MoO 4 ) into it, and then add ammonium tungstate containing 0.04 moles of W (molecular formula: (NH 4 ) 10 W 12 o 41 ), tin dioxide containing 0.04 moles of Sn (molecular formula: SnO 2 ), scandium nitrate containing 0.04 moles of Sc (molecular formula: Sc(NO 3 ) 3 ), containing 0.04 moles of Na sodium nitrate (molecular formula is NaNO 3 ), stirred to make it all dissolve to obtain solution I. Copper nitrate containing 0.04 moles of Cu (molecular formula: Cu(NO 3 ) 2 ) aqueous solution was added to the above solution respectively, mixed evenly, and evaporated at 80°C to the solution containing the active component VMo 4 Cu 0.4 W 0.4 sn 0.4 sc 0.4 Na 0.4 o g The concentration of 0.4g / g, to obtain solution II.

[0075] 2. Loading of active elements

...

Embodiment 2

[0090] 1. Preparation of active element solution

[0091] Ammonium metavanadate (molecular formula: NH 4 VO 3 ) was dissolved in 200g of hot water at 80°C. Ammonium molybdate (molecular formula is: (NH 4 ) 2 MoO 4 ) into it, and then add ammonium tungstate containing 0.04 moles of W (molecular formula: (NH 4 ) 10 W 12 o 41 ), tin dioxide containing 0.04 moles of Sn (molecular formula: SnO 2 ), rhodium nitrate containing 0.04 moles of Rh (molecular formula: Rh(NO 3 ) 3 ), containing 0.04 moles of Na sodium nitrate (molecular formula is NaNO 3 ), stirred to make it all dissolve to obtain solution I. Copper nitrate containing 0.04 moles of Cu (molecular formula: Cu(NO 3 ) 2 ) aqueous solution was added to the above solution respectively, mixed evenly, and evaporated at 80°C to the solution containing the active component VMo 4 Cu 0.4 W 0.4 sn 0.4 Rh 0.4 Na 0.4 o g The concentration of 0.4g / g, to obtain solution II.

[0092] 2. Loading of active elements

[...

Embodiment 3

[0107] 1. Preparation of active element solution

[0108] Ammonium metavanadate (molecular formula: NH 4 VO 3 ) was dissolved in 200g of hot water at 80°C. Ammonium molybdate (molecular formula is: (NH 4 ) 2 MoO 4 ) into it, and then add ammonium tungstate containing 0.04 moles of W (molecular formula: (NH 4 ) 10 W 12 o 41 ), tin dioxide containing 0.04 moles of Sn (molecular formula: SnO 2 ), iridium oxide containing 0.04 moles of Ir (molecular formula: IrO 2 ), containing 0.04 moles of Na sodium nitrate (molecular formula is NaNO 3 ), stirred to make it all dissolve to obtain solution I. Copper nitrate containing 0.04 moles of Cu (molecular formula: Cu(NO 3 ) 2 ) aqueous solution was added to the above solution respectively, mixed evenly, and evaporated at 80°C to the solution containing the active component VMo 4 Cu 0.4 W 0.4 sn 0.4 Ir 0.4 Na 0.4 o g The concentration of 0.4g / g, to obtain solution II.

[0109] 2. Loading of active elements

[0110] 200...

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Abstract

The invention relates to an acrylic acid catalyst and applications thereof. A purpose of the invention is mainly to solve the problems of low acrolein conversion rate and low acrylic acid yield in theexisting catalyst. According to the technical scheme, the acrylic acid catalyst comprises a carrier and an active component loaded on the carrier, the general formula of the active component is represented by VMoaCubWcXdQeZfOg, X is selected from one or a plurality of materials selected from Al, Ga, Ge, In, Sn, Sb, TI, Pb, Bi and Po, Q is at least one selected from Sc, Ti, Y, Zr, Hf, Ta, Tc, Re,Ru, Os, Rh, Ir, Pd, Pt, Ag, Au, Cd, La and Pr, and Z is one or a plurality of materials selected from Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba and Ra. By adopting the technical scheme, the technicalproblem is well solved, and the catalyst can be used for industrial production of acrylic acid.

Description

technical field [0001] The invention relates to an acrylic acid catalyst, its preparation method and its application in the oxidation of acrolein to produce acrylic acid. Background technique [0002] Acrylic acid is an important organic chemical raw material. It is mainly used to manufacture multifunctional polymer materials such as acrylates, and is widely used in papermaking, leather, coatings, textiles, plastics, rubber, oil additives, and oil exploration. In recent years, the market demand for acrylic acid has been increasing worldwide, and the production of acrylic acid has always been a research hotspot. And acrolein is the simplest unsaturated aldehyde, and it is also an important chemical synthesis intermediate, which is widely used in the synthesis of important chemical products such as picoline, pyridine, glutaraldehyde and acrylic acid. Therefore, the production of acrylic acid through acrolein has become The general trend. At present, the synthesis of acrylic ...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01J23/888C07C57/04C07C51/235
CPCB01J23/8993B01J23/8885B01J23/002C07C51/235B01J2523/00
Inventor 王伟华宋卫林徐文杰杨斌奚美珍
Owner CHINA PETROLEUM & CHEM CORP
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