Cobalt-based catalyst for synthesizing methyl isobutyl ketone from acetone

A methyl isobutyl ketone, cobalt-based catalyst technology, applied in molecular sieve catalysts, physical/chemical process catalysts, preparation of organic compounds, etc., can solve the problem of inability to produce or by-product 4-methyl-2-pentanol, etc. problems, to achieve the effect of easy manipulation, simple preparation process, 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

[0008] Throughout the literature and reports, the current industrialized catalyst is still Pd / resin catalyst, the life of the catalyst is 9-12 months, and the catalyst cannot produce or by-product 4-methyl-2-pentanol (MIBC)
Other catalysts have not been reported on industrialization

Method used

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  • Cobalt-based catalyst for synthesizing methyl isobutyl ketone from acetone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 133.4 grams of cobalt nitrate and 4.7 grams of ammonium fluoride were dissolved in 322 grams of water in a beaker to prepare aqueous solution I. In another beaker, 74.1 grams of sodium stannate was dissolved in 173 grams of water to make aqueous solution II. Under stirring and at 70° C., the sodium stannate aqueous solution II was poured into the beaker of the aqueous solution I, and then titrated with 30 wt % sodium carbonate aqueous solution until the pH value of the reaction solution was 7.5. Then add 332 grams of pseudo-boehmite powder. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​305m 2 / g, the pore volume is 0.92mL / g.

[0038] Then aged at 70° C. for 4 hours, then suction filtered and washed until the sodium ion content was lower than 0.05%. The wet filter cake was dried, granulated, and then roasted and decomposed at 400°C. Finally, it is sliced ​​into granules, and the particle size is

[0039] Then...

Embodiment 2

[0044] 88.9 grams of cobalt nitrate and 0.66 grams of sodium fluoride were dissolved in 208 grams of water in a beaker to prepare aqueous solution I. In another beaker, 101.1 g of sodium stannate was dissolved in water to make aqueous solution II. With stirring and at 70° C., the sodium stannate aqueous solution II was poured into the beaker of the aqueous solution I, and then titrated with 30 wt % sodium carbonate aqueous solution until the pH value of the reaction solution was 7.4. Then add 325 grams of pseudo-boehmite powder. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​298m 2 / g, the pore volume is 1.0mL / g.

[0045] 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 was dried, granulated, and then roasted and decomposed at 380°C. Finally, it is sliced ​​into granules, and the particle size is

[0046] Then, the catalyst was r...

Embodiment 3

[0049] 177.9 grams of cobalt nitrate and 2.3 grams of ammonium fluoride were dissolved in 420 grams of water in a beaker to prepare aqueous solution I. In another beaker, 148.3 grams of sodium stannate was dissolved in 350 grams of water to make aqueous solution II. Under stirring and at 73° C., the sodium stannate aqueous solution II was poured into the beaker of the aqueous solution I, and then titrated with 30 wt % sodium carbonate aqueous solution until the pH value of the reaction solution was 7.2. Then add 266 grams of pseudo-boehmite powder. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​279m 2 / g, the pore volume is 0.88mL / g.

[0050] Then aged at 75° C. for 3.5 hours, then suction filtered and washed until the sodium ion content was lower than 0.05%. The wet filter cake was dried, granulated, and then roasted and decomposed at 370°C. Finally, it is sliced ​​into granules, and the particle size is

[0051] T...

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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 tin are used as main active components, fluorine is used as an auxiliary agent component, aluminum oxide, silicon oxide or an aluminum oxide-silicon oxide composite carrier with rich pH value is selected to promote a reaction, the catalyst is used under a mild reaction condition, an one-step acetone synthesis process is used, 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 a large amount of isopropanol are by-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): B01J27/135B01J29/00C07C45/74C07C49/04
CPCB01J27/135B01J29/00C07C45/74C07C49/04
Inventor 唐国旗田保亮杨溢李宝芹
Owner CHINA PETROLEUM & CHEM CORP
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