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Catalyst for co-producing methyl isobutyl ketone and diisobutyl ketone

A technology of methyl isobutyl ketone and diisobutyl ketone is applied in the field of catalysts for synthesizing methyl isobutyl ketone, and can solve the problems of high catalyst usage cost, inability to produce or by-product diisobutyl ketone, and the like, Achieve low cost, easy handling, high stability and longevity

Active Publication Date: 2018-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Throughout the literature and reports, the current industrialized catalyst is still a Pd / resin catalyst, the life of the catalyst is 9-12 months, the cost of the catalyst is relatively high, and the catalyst cannot produce or by-produce diisobutyl ketone
Other catalysts have not been reported on industrialization

Method used

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  • Catalyst for co-producing methyl isobutyl ketone and diisobutyl ketone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In a beaker, 148.2 grams of cobalt nitrate, 14 grams of lanthanum nitrate and 204.7 grams of zinc nitrate were dissolved in 850 grams of water to make aqueous solution I. Under stirring and at 70° C., titrated with 30 wt % sodium carbonate aqueous solution until the pH value of the reaction solution was 7.0. Then add 298 grams of pseudo-boehmite powder. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​300m 2 / g, the pore volume is 1.04mL / g.

[0036] Then aged at 75° C. for 3 hours, then suction filtered and washed until the sodium ion content was lower than 0.05%. The wet cake was dried, granulated, and then calcined at 420°C for decomposition. Finally, it is sliced ​​into granules, and the particle size is

[0037] Then, the catalyst was reduced with hydrogen in a temperature-programmed manner, and the highest reduction temperature was 480°C. Constant temperature reduction at 480°C for 2 hours. After cooling ...

Embodiment 2

[0042] In a beaker, 74.1 grams of cobalt nitrate, 23.4 grams of lanthanum nitrate and 81.9 grams of zinc nitrate are dissolved in 420 grams of water to make aqueous solution I, and under stirring and at 72° C., titrate to the pH value of the reaction solution with 30 wt % sodium carbonate aqueous solution 7.5. Then add 363 grams of pseudo-boehmite powder. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​284m 2 / g, the pore volume is 0.88mL / g.

[0043] Then aged at 75° C. for 3 hours, then suction filtered and washed until the sodium ion content was lower than 0.05%. The wet filter cake is dried, granulated, and then roasted and decomposed at 380°C. Finally, it is sliced ​​into granules, and the particle size is

[0044] Then, the catalyst was reduced with hydrogen in a temperature-programmed manner, and the highest reduction temperature was 450°C. Constant temperature reduction at 450°C for 3 hours. After cooling down,...

Embodiment 3

[0047] In a beaker, 192.7 grams of cobalt nitrate, 51.1 grams of cerium nitrate and 327.5 grams of zinc nitrate were dissolved in 1300 grams of water to make aqueous solution I. Under stirring and at 70° C., titrated with 30 wt % sodium carbonate aqueous solution until the pH value of the reaction solution was 7.2. Then add 215.9 grams of pseudo-boehmite powder. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​310m 2 / g, the pore volume is 0.95mL / g.

[0048] Then aged at 75° C. for 3 hours, then suction filtered and washed until the sodium ion content was lower than 0.05%. The wet filter cake is dried, granulated, and then roasted and decomposed at 380°C. Finally, it is sliced ​​into granules, and the particle size is

[0049] Then, the catalyst was reduced with hydrogen in a temperature-programmed manner, and the highest reduction temperature was 460°C. Constant temperature reduction at 460°C for 3 hours. After coolin...

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Abstract

The invention relates to a catalyst, and belongs to the technical field of applications and development of acetone downstream products, wherein cobalt and zinc are used as main active components, lanthanum and / or cerium are used as auxiliary agent components, aluminum oxide, silicon oxide or an aluminum oxide-silicon oxide composite carrier with rich pH value is selected to promote a reaction, thecatalyst is used under a mild reaction condition, an acetone one-step production process is used, and the yield of methyl isobutyl ketone in the application of the catalyst of the present invention is higher than the yield of methyl isobutyl ketone in the application of the palladium / resin catalyst used in the current industrial apparatus, and isopropanol and high added value diisobutyl ketone are co-produced. According to the present invention, the obtained catalyst has the ideal stability, has the cost significantly lower than the cost of the existing palladium catalyst, and has good economic benefits.

Description

technical field [0001] The present invention relates to a catalyst for ketone condensation, more specifically, relates to a catalyst for synthesizing methyl isobutyl ketone by one-step method using acetone as raw material. Background technique [0002] Methyl isobutyl ketone (MIBK for short) is an important solvent and chemical intermediate. It has attracted much attention because of its excellent performance. It has an aromatic ketone smell, is colorless and transparent, and has a medium boiling point. It has a very strong solvency. It can be miscible with many organic solvents such as alcohol, benzene, ether, etc., and can be used as paint, ethyl cellulose, nitrocellulose, audio and video tapes, paraffin, various natural or synthetic resin solvents, dewaxing agents, rare earth metal extraction agents, polymerization The raw materials of reaction initiators, surfactants, medicines, pesticide extractants and rubber anti-aging agents are currently relatively in short supply fin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83C07C45/74C07C49/04
CPCB01J23/002B01J23/83B01J2523/00C07C45/74B01J2523/27B01J2523/31B01J2523/3706B01J2523/41C07C49/04
Inventor 田保亮唐国旗杨溢李宝芹
Owner CHINA PETROLEUM & CHEM CORP
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