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Catalyst suitable for producing acrolein, and applications thereof

A catalyst, acrolein technology, applied in physical/chemical process catalysts, heterogeneous catalyst chemical elements, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as low yield of acrolein

Active 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

[0004] One of the technical problems to be solved by the present invention is the low yield of acrolein in existing catalysts, and a new catalyst suitable for the production of acrolein is provided, which has the characteristics of high yield of acrolein

Method used

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  • Catalyst suitable for producing acrolein, and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] 1. Catalyst preparation

[0067] Bismuth nitrate (molecular formula is: Bi(NO 3 ) 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 respectively add chromium nitrate containing 0.04 moles of Cr (molecular formula: Cr(NO 3 ) 3 ), tin dioxide containing 0.04 moles of Sn (molecular formula: SnO 2 ), titanium dioxide containing 0.04 moles of Ti (molecular formula: TiO 2 ), containing 0.04 moles of Na sodium nitrate (molecular formula is NaNO 3 ), stirred to make it all dissolve to obtain solution I. Ferric nitrate containing 0.04 moles of Fe (molecular formula is: Fe(NO 3 ) 3 ) aqueous solution was added to the above solution, mixed evenly, and evaporated at 80°C until the mixture containing the active component BiMo 4 Fe 0.4 Cr 0.4 sn 0.4 Ti 0.4 Na 0.4 o g The concentration of 0.4g / g, to obtain solution II.

[0068] Mix 200 g of spherical silica carrier with a diameter of 5 mm an...

Embodiment 2

[0079] 1. Catalyst preparation

[0080] Bismuth nitrate (molecular formula is: Bi(NO 3 ) 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 respectively add chromium nitrate containing 0.04 moles of Cr (molecular formula: Cr(NO 3 ) 3 ), tin dioxide containing 0.04 moles of Sn (molecular formula: SnO 2 ), zirconium nitrate (molecular formula: Zr(NO 3 ) 4 ), containing 0.04 moles of Na sodium nitrate (molecular formula is NaNO 3 ), stirred to make it all dissolve to obtain solution I. Ferric nitrate containing 0.04 moles of Fe (molecular formula is: Fe(NO 3 ) 3 ) aqueous solution was added to the above solution, mixed evenly, and evaporated at 80°C until the mixture containing the active component BiMo 4 Fe 0.4 Cr 0.4 sn 0.4 Zr 0.4 Na 0.4 o g The concentration of 0.4g / g, to obtain solution II.

[0081] Mix 200 g of spherical silica carrier with a diameter of 5 mm and 200 g of solution ...

Embodiment 3

[0092] 1. Catalyst preparation

[0093] Bismuth nitrate (molecular formula is: Bi(NO 3 ) 3 ) was dissolved in 200g of hot water at 80°C. Ammonium molybdate (molecular formula is: (NH 4 ) 2 MoO4 ) into it, and then respectively add chromium nitrate containing 0.04 moles of Cr (molecular formula: Cr(NO 3 ) 3 ), tin dioxide containing 0.04 moles of Sn (molecular formula: SnO 2 ), hafnium oxide containing 0.04 moles of Hf (molecular formula: HfO 2 ), containing 0.04 moles of Na sodium nitrate (molecular formula is NaNO 3 ), stirred to make it all dissolve to obtain solution I. Ferric nitrate containing 0.04 moles of Fe (molecular formula is: Fe(NO 3 ) 3 ) aqueous solution was added to the above solution, mixed evenly, and evaporated at 80°C until the mixture containing the active component BiMo 4 Fe 0.4 Cr 0.4 sn 0.4 Hf 0.4 Na 0.4 o g The concentration of 0.4g / g, to obtain solution II.

[0094] Mix 200 g of spherical silica carrier with a diameter of 5 mm and 200...

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Abstract

The invention relates to a catalyst suitable for producing acrolein, and applications thereof. According to the technical scheme, the catalyst comprises a carrier and an active component loaded on thecarrier, wherein the general formula of the active component is represented by BiMoaFebCrcXdJeZfOg, X is at least one selected from an element group consisting of Al, Ga, Ge, In, Sn, Sb, TI, Pb and Po, J is at least one selected from an element group consisting of Sc, Y, Ti, Zr, Hf, V, Nb, Ta, W, Tc, Re, Ru, Os, Rh, Ir, Pd, Pt, Ag, Au, Cd, La and Nd, and Z is at least one selected from an elementgroup consisting of Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba and Ra.

Description

technical field [0001] The present invention relates to a catalyst suitable for producing acrolein, its preparation method and its application in oxidizing propylene to produce acrolein. Background technique [0002] Acrolein is the simplest unsaturated aldehyde, and it is also an important chemical synthesis intermediate. It can be used as an important raw material for the synthesis of 1,3-propanediol. Acrolein has active chemical properties and complex synthesis process. There are not many domestic manufacturers, and it is mainly used as an intermediate product for the production of acrylic acid. [0003] Acrolein was first produced by gas-phase condensation of formaldehyde and acetaldehyde, and was industrialized in 1942. The catalyst at that time was silica gel impregnated with sodium silicate. Since then, countries have continued to use this process route until the industrialization of propylene oxidation. At present, the oxidation of propylene to produce acrolein is...

Claims

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Application Information

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IPC IPC(8): B01J23/887C07C47/22C07C45/35
CPCB01J23/8878B01J23/002C07C45/35B01J2523/00C07C47/22B01J2523/12B01J2523/41B01J2523/43B01J2523/47B01J2523/54B01J2523/67B01J2523/68B01J2523/842B01J2523/48B01J2523/49B01J2523/3725Y02P20/52
Inventor 杨斌王伟华徐文杰奚美珍
Owner CHINA PETROLEUM & CHEM CORP
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