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Nickel-based catalyst for one-step synthesis of downstream condensation products of acetone

A technology of nickel-based catalyst and acetone, which is applied in the direction of physical/chemical process catalysts, preparation of organic compounds, organic chemistry, etc., can solve the problem of single product, and achieve the effect of simple preparation process, increased anti-loss ability, and low cost

Active Publication Date: 2020-02-18
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 Pd / resin catalyst, and the life-span of the catalyst is 9-12 months, and the product produced by this catalyst has only methyl isobutyl ketone, and the product is single
Other catalysts have not been reported on industrialization

Method used

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  • Nickel-based catalyst for one-step synthesis of downstream condensation products of acetone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 500 g of pseudo-boehmite was kneaded according to a conventional kneading method, and 20 ml of sulfuric acid was added during kneading to carry out carrier acid modification. squeeze into strips, dried, and calcined at 500°C to obtain an acid-modified alumina carrier. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​297m 2 / g, the pore volume is 0.95mL / g.

[0037] 49.5 grams of nickel nitrate, 4.7 grams of lanthanum nitrate and 1.9 grams of phosphoric acid were dissolved in 180 grams of water in a beaker to prepare aqueous solution I.

[0038] Take the above-mentioned 124 grams of acid-modified alumina carrier, and impregnate the above-prepared aqueous solution I on the carrier twice, after each impregnation, dry, and decompose by roasting at 350° C.

[0039] Then, the catalyst was reduced with hydrogen in a temperature-programmed manner, and the highest reduction temperature was 480°C. Constant temperature reducti...

Embodiment 2

[0044] 500 g of pseudo-boehmite was kneaded according to a conventional kneading method, and 5 ml of hydrofluoric acid and 15 ml of sulfuric acid were added during kneading to carry out carrier acid modification. squeeze into strips, dried, and calcined at 550°C to obtain an acid-modified alumina carrier. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​297m 2 / g, the pore volume is 0.95mL / g.

[0045] 20.8 grams of nickel nitrate, 0.6 grams of lanthanum nitrate and 10.4 grams of phosphoric acid were dissolved in 190 grams of water in a beaker to prepare aqueous solution I.

[0046] Take the above-mentioned 124 grams of acid-modified alumina carrier, and impregnate the above-prepared aqueous solution I on the carrier twice, after each impregnation, dry, and decompose by roasting at 350° C.

[0047] Then, the catalyst was reduced with hydrogen in a temperature-programmed manner, and the highest reduction temperature was 480°...

Embodiment 3

[0050] 500 g of pseudo-boehmite was kneaded according to a conventional kneading method, and 8 g of calcium nitrate was added during kneading to carry out carrier alkali modification. squeeze into strips, dried, and calcined at 500°C to obtain an alkali-modified alumina carrier. Pseudoboehmite is produced by Jiangsu Sanji Industrial Co., Ltd., with a specific surface area of ​​297m 2 / g, the pore volume is 0.95mL / g.

[0051] 66.9 grams of nickel nitrate, 8.9 grams of neodymium nitrate and 0.4 grams of phosphoric acid were dissolved in 180 grams of water in a beaker to prepare aqueous solution I.

[0052] Take the above-mentioned 118 grams of alkali-modified alumina carrier, and impregnate the above-prepared aqueous solution I on the carrier twice, after each impregnation, dry, and roast and decompose at 350° C.

[0053] Then, the catalyst was reduced with hydrogen in a temperature-programmed manner, and the highest reduction temperature was 480°C. Constant temperature red...

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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 nickel is used as a main active component, phosphorous,lanthanum and / or neodymium 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, the catalyst is used under a mild reaction condition, an acetone one-step production 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 isopropanol and high added value diisobutyl ketoneare 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 invention relates to a catalyst for ketone condensation, more specifically, a catalyst for synthesizing methyl isobutyl ketone and diisobutyl 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/185C07C45/73C07C49/04
CPCB01J27/1853C07C45/73C07C49/04
Inventor 唐国旗杨溢田保亮李宝芹
Owner CHINA PETROLEUM & CHEM CORP
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