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Catalyst for preparing unsaturated aldehyde and unsaturated acid through olefin oxidation

An unsaturated catalyst technology, applied in the field of synthesis of unsaturated aldehydes and unsaturated acids, can solve the problems of olefin conversion rate, unsaturated aldehyde and unsaturated acid yield decline, and achieve good stability, high conversion rate and yield The effect of high efficiency and good technical effect

Active Publication Date: 2016-05-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is the problem that the conversion rate of olefins and the yield of unsaturated aldehydes and unsaturated acids decrease in the long-term operation of existing catalysts. catalyst

Method used

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  • Catalyst for preparing unsaturated aldehyde and unsaturated acid through olefin oxidation
  • Catalyst for preparing unsaturated aldehyde and unsaturated acid through olefin oxidation
  • Catalyst for preparing unsaturated aldehyde and unsaturated acid through olefin oxidation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] 1000 g (NH 4 ) 6 Mo 7 o 24 4H 2 O was added to 1000 grams of warm water at 70°C, stirred to dissolve it all, and then 2.88 grams of KNO was added 3 and 5.49 grams of CsNO 3 Material 1 was obtained; then 800 g of 40% (wt.) silica sol was added to make material 2.

[0059] 396.9 g Fe(NO 3 ) 3 9H 2 O was added to 150 g of 90°C hot water, stirred and dissolved, and 248 g of Bi(NO 3 ) 3 ·5H 2 O, 516 g Co(NO 3 ) 2 ·6H 2 O, 452 grams of Ni (NO 3 ) 2 ·6H 2 O, 84 g Mn(NO 3 ) 2 (50%), 20 grams of La(NO 3 ) 3 ·3H 2 O and 41.8 g Sb 2 o 3 Material 3 was made after stirring and dissolving.

[0060] Add material 3 to material 2 under rapid stirring to form catalyst slurry 1.

[0061] 136.8 g of Cu(NO 3 ) 2 ·3H 2 O was dissolved in 100 grams of hot water at 90°C, and 25% ammonia water was added, and a dark blue precipitate appeared in the solution, and excessive ammonia water was added until the precipitate was dissolved, and the dark blue aqueous solution w...

Embodiment 2

[0112] 1000 g (NH 4 ) 6 Mo 7 o 24 4H 2 O was added to 1000 grams of warm water at 70°C, stirred to dissolve it all, and then 5.73 grams of KNO was added 3 Material 1 was obtained; then 860 grams of 40% (wt.) silica sol and 543 grams of 20% (wt.) aluminum sol were added to make material 2.

[0113] 539 g Fe(NO 3 ) 3 9H 2 O was added to 150 g of 90°C hot water, stirred and dissolved, and 217 g of Bi(NO 3 ) 3 ·5H 2 O, 229 grams (NH 4 ) 5 h 5 [H 2 (WO 4 ) 6 ]H 2 O, 635 g Co(NO 3 ) 2 ·6H 2 O, 469 grams of Ni (NO 3 ) 2 ·6H 2 O, 105 g Mn(NO 3 ) 2 (50%), 103 g Ce(NO 3 ) 3 ·6H 2 O, 19.5 g Sb 2 o 3 and 2.64 grams of CrO 3 Material 3 was made after stirring and dissolving.

[0114] Add material 3 to material 2 under rapid stirring to form catalyst slurry 1.

[0115] 114.0 g of Cu(NO 3 ) 2 ·3H 2 O was dissolved in 100 grams of hot water at 90°C, and 25% ammonia water was added, and a dark blue precipitate appeared in the solution, and excessive ammonia w...

Embodiment 3

[0126] 1000 g (NH 4 ) 6 Mo 7 o 24 4H 2 O was added to 1000 grams of warm water at 70°C, stirred to dissolve it all, and then 3.15 grams of KNO was added 3 and 5.54 g RbNO 3 Material 1 was obtained; then 800 g of 40% (wt.) silica sol was added to make material 2.

[0127] 491.3 g Fe(NO 3 ) 3 9H 2 O was added to 150 g of 90°C hot water, stirred and dissolved, and 213 g of Bi(NO 3 ) 3 ·5H 2 O, 503 g Co(NO 3 ) 2 ·6H 2 O, 372 grams of Ni (NO 3 ) 2 ·6H 2 O, 29.2 g Sb 2 o 3 and 32.9 grams of Sm 2 o 3 Material 3 was made after stirring and dissolving.

[0128] Add material 3 to material 2 under rapid stirring to form catalyst slurry 1.

[0129] 148.2 g of Cu(NO 3 ) 2 ·3H 2 O was dissolved in 100 grams of hot water at 90°C, and 25% ammonia water was added, and a dark blue precipitate appeared in the solution, and excessive ammonia water was added until the precipitate was dissolved, and the dark blue aqueous solution was obtained as material 4, and then materia...

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Abstract

The invention relates to a catalyst for preparing unsaturated aldehyde and unsaturated acid through olefin oxidation, a preparation method thereof, and a synthetic method of unsaturated aldehyde and unsaturated acid, which solve the problem of decreased performance of long-term operation of the catalyst in the prior art. The catalyst selects at least one of SiO2 and Al2O3 as a carrier, and an active component is Mo12BiaFebCucXeYfZgQqOj, so that the problem can be better solved, and the catalyst can be used for preparing the unsaturated aldehyde and the unsaturated acid.

Description

technical field [0001] The invention relates to a catalyst for preparing unsaturated aldehyde and unsaturated acid by oxidation of olefin, a preparation method thereof, and a synthesis method of unsaturated aldehyde and unsaturated acid. Background technique [0002] The selective oxidation of olefins to prepare α, β unsaturated aldehydes and unsaturated acids is an important chemical process, and the production of unsaturated aldehydes uses a catalyst containing Mo and Bi as active components. The improvement of the catalyst is mainly carried out in terms of the activity and stability of the catalyst, such as adding transition metals to the active component to increase the activity and increase the yield of the product; adding rare earth elements to improve the redox ability; adding Fe, Co, Ni, etc. Elements to inhibit the sublimation of Mo, stabilize the active components of the catalyst, improve the service life of the catalyst, etc. [0003] There have been many patent ...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J23/887C07C27/12C07C45/35C07C47/22C07C51/21C07C57/05
Inventor 杨斌徐文杰缪晓春奚美珍汪国军
Owner CHINA PETROLEUM & CHEM CORP
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