Catalyst for co-producing 4-methyl-2-pentanone and 4-methyl-2-pentanol through one-step method

A catalyst and methyl technology, which is applied in the field of catalysts for co-production of 4-methyl-2-pentanone and 4-methyl-2-pentanol, can solve the problem of inability to produce or by-produce 4-methyl-2-pentanol. problems such as amyl alcohol to achieve low-cost effects

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 literature and reports, the industrialized catalyzer in this field is still Pd / resin catalyst at present, and the life-span of catalyzer is 9-12 months, and this catalyst can not produce or by-product 4-methyl-2-pentanol (MIBC)
Other catalysts have not been reported on industrialization

Method used

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  • Catalyst for co-producing 4-methyl-2-pentanone and 4-methyl-2-pentanol through one-step method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 58.2 grams of copper nitrate, 57 grams of magnesium nitrate and 36.3 grams of cerium nitrate were dissolved in 350 grams of water in a beaker to prepare aqueous solution I. In another beaker, 29 grams of ammonium dichromate was dissolved in 68 grams of water to make aqueous solution II. With stirring and a solution temperature of 70° C., the ammonium dichromate 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 7.0. Then add 357 grams of pseudo-boehmite powder. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​290m 2 / g, the pore volume is 0.9mL / g.

[0042] Then aged at 75° C. for 4 hours, then suction filtered and washed until the sodium ion content was lower than 0.05%.

[0043] Dry, granulate, and then decompose by roasting at 350°C. Finally, it is sliced ​​into granules, and the ...

Embodiment 2

[0049] 168.9 grams of copper nitrate, 1.9 grams of magnesium nitrate and 18.6 grams of cerium nitrate were dissolved in 442 grams of water in a beaker to prepare aqueous solution I. In another beaker, 215.3 grams of ammonium dichromate was dissolved in 500 grams of water to make aqueous solution II. Under stirring and at 70° C., the ammonium dichromate 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 7.1. Then 542 grams of silica sol were added. Silica sol is produced by Shandong Ocean Chemical Co., Ltd., the model is JN-30.

[0050] Then aged at 80° C. for 4 hours, then suction filtered and washed until the sodium ion content was lower than 0.05%.

[0051] Dry, granulate, and then decompose by roasting at 380°C. Finally, it is sliced ​​into granules, and the particle size is

[0052] Then, the catalyst was reduced with a mixed gas o...

Embodiment 3

[0055] 114 grams of copper nitrate, 12.3 grams of calcium nitrate and 0.93 grams of cerium nitrate were dissolved in 297 grams of water in a beaker to prepare aqueous solution I. In another beaker, 145.4 grams of ammonium dichromate was dissolved in 340 grams of water to make aqueous solution II. Under stirring and at 70° C., the ammonium dichromate 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 7.3. Then 148.6 grams of pseudoboehmite and 346.7 grams of silica sol were added. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​290m 2 / g, the pore volume is 0.9mL / g. Silica sol is produced by Shandong Ocean Chemical Co., Ltd., the model is JN-30.

[0056] Then aged at 85° C. for 4 hours, then suction filtered and washed until the sodium ion content was lower than 0.05%.

[0057] Dry, granul...

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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 copper, an alkaline earth metal, cerium and chromium areused as loading components, 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 mildreaction condition, the yield of 4-methyl-2-pentanone in the application of the catalyst of the present invention is higher than the yield of 4-methyl-2-pentanone in the application of the palladium/resin catalyst used in the current industrial apparatus, and 4-methyl-2-pentanol is economically by-produced. According to the present invention, the obtained catalyst has the ideal stability, has thecost 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, a catalyst for the co-production of 4-methyl-2-pentanone and 4-methyl-2-pentanol by using acetone as a raw material. Background technique [0002] 4-Methyl-2-pentanone, commonly known as 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 and is colorless. Transparent, the boiling point belongs to the middle boiling point, the solubility is very strong, and it can be miscible with many organic solvents such as alcohol, benzene, ether, etc. It can be used as paint, ethyl cellulose, nitrocellulose, audio and video tapes, paraffin, and various natural or synthetic resins Raw materials for solvents, dewaxing agents, rare earth metal extractants, polymerization initiators, surfactants, pharmaceuticals, pesticide extractants and rub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/86C07C45/74C07C49/04C07C29/145C07C31/125
CPCB01J23/002B01J23/868B01J2523/00C07C29/145C07C45/74B01J2523/22B01J2523/31B01J2523/3712B01J2523/41B01J2523/23C07C49/04C07C31/125
Inventor 唐国旗田保亮杨溢李宝芹
Owner CHINA PETROLEUM & CHEM CORP
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