Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A catalyst for the condensation of acetone to prepare methyl isobutyl ketone and diisobutyl ketone, its preparation method and application

A technology of methyl isobutyl ketone and diisobutyl ketone, which is applied to the catalyst for preparing methyl isobutyl ketone and diisobutyl ketone by acetone condensation and the field of preparation thereof, can solve the problem of shortening the technological process and the intolerant of resin. High temperature regeneration, short life and other problems

Active Publication Date: 2022-03-01
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The industrialized acetone one-step synthesis of MIBK is generally carried out under high pressure, and Pd / resin catalyst is mostly used. Although a higher MIBK yield can be obtained, its life is short, the resin is not resistant to high temperature and regeneration is difficult. During the research process of isobutyl ketone, the development of catalysts has been uninterrupted. The research on catalysts in the field of MIBK synthesis has made great progress. One-step synthesis of MIBK with high yield and conversion rate under certain process conditions, thereby shortening the process flow and increasing product yield

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A catalyst for the condensation of acetone to prepare methyl isobutyl ketone and diisobutyl ketone, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Pour 240g of pseudo-boehmite into a kneader, then add 6g of celadon powder, knead and mix. Then add 60g of silica sol, 10g of dilute nitric acid with a volume fraction of 20%, knead into a block, extrude, then dry at 120°C and roast at 400°C for 4 hours to obtain a carrier, which is crushed to 0.5-3mm for later use. Silica sol is produced by Shandong Ocean Chemical Co., Ltd., the model is JN-30. 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] 31.5 g of copper nitrate, 25.5 g of cobalt nitrate, 50.5 g of zinc nitrate and 10 g of barium nitrate were dissolved in 45 g of water in a beaker to form a salt mixture solution. The mixed solution was poured into a beaker containing 60 g of the catalyst carrier, shaken evenly and allowed to stand for 3 hours, then dried at 120° C. and calcined at 450° C. for 3 hours to obtain the oxidation state of the catalyst. Before use, the c...

Embodiment 2

[0044] Pour 270g of pseudo-boehmite into a kneader, then add 6g of celadon powder, knead and mix. Then add 30g of silica sol, 10g of dilute nitric acid with a volume fraction of 20%, knead into a block, extrude, then dry at 120°C and roast at 450°C for 4 hours to obtain a carrier, which is crushed to 0.5-3mm for later use. Silica sol is produced by Shandong Ocean Chemical Co., Ltd., the model is JN-30. 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.

[0045] 25.5 g of copper nitrate, 28.5 g of cobalt nitrate, 40.0 g of zinc nitrate and 8 g of barium nitrate were dissolved in 40 g of water in a beaker to form a salt mixture solution. The mixed solution was poured into a beaker containing 60 g of the catalyst carrier, shaken evenly and allowed to stand for 2 hours, then dried at 120° C. and calcined at 450° C. for 3 hours to obtain the oxidation state of the catalyst. Before use, the ca...

Embodiment 3

[0047] Pour 290g of pseudo-boehmite into a kneader, then add 6g of fennel powder, knead and mix. Then add 10g of silica sol, 10g of dilute nitric acid with a volume fraction of 20%, knead into a block, extrude, then dry at 120°C and roast at 450°C for 4 hours to obtain a carrier, which is crushed to 0.5-3mm for later use. Silica sol is produced by Shandong Ocean Chemical Co., Ltd., the model is JN-30. 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.

[0048] 20.5 g of copper nitrate, 40.5 g of cobalt nitrate, 25.5 g of zinc nitrate and 3 g of barium nitrate were dissolved in 45 g of water in a beaker to form a salt mixture solution. The mixed solution was poured into a beaker containing 60 g of the catalyst carrier, shaken evenly and allowed to stand for 3 hours, then dried at 120° C. and calcined at 500° C. for 3 hours to obtain the oxidation state of the catalyst. Before use, the cat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to a catalyst used for the condensation of acetone to prepare methyl isobutyl ketone and diisobutyl ketone, a preparation method and application thereof, in the field of acetone condensation catalysts. The catalyst for the condensation of acetone to prepare methyl isobutyl ketone and diisobutyl ketone comprises the following components in weight percent: (1) 2% to 25% copper or its oxide; (2) 8% ~35% zinc or its oxide; (3) 2%~40% cobalt or its oxide; (4) 1%~10% barium or its oxide; (5) 30%~80% aluminum oxide; (6) ) 1%~40% silicon dioxide; the catalyst of the present invention uses copper, zinc, cobalt, etc. as loading components, properly adjusts the balance of catalyst acidity and alkalinity and hydrogenation property, and prepares a suitable catalyst pore structure. When used at a lower reaction temperature, the conversion rate of acetate is very high, and there are few by-products, the product yield is high, and the subsequent separation energy consumption is low. After a long-term assessment, the catalyst showed ideal stability.

Description

technical field [0001] The invention relates to the field of acetone condensation catalysts, and more specifically, relates to a catalyst for preparing methyl isobutyl ketone and diisobutyl ketone by condensation of acetone, a preparation method and application thereof. Background technique [0002] Methyl isobutyl ketone (MIBK for short) is a colorless transparent liquid with a camphor-like smell. MIBK is mainly used in medium boiling point solvents and raw materials for organic synthesis. In terms of solvent use, compared with commonly used solvents (such as acetone, ethyl acetate, cyclohexanone, methyl ethyl ketone, etc.), MIBK has the characteristics of low volatility, good compatibility, and non-toxicity. High-grade solvent used in adhesive, epoxy resin and other industries. As a paint solvent, MIBK has excellent properties (good leveling, hard paint film, moderate volatility, can prepare low-viscosity solutions and prevent gelation), which makes it have broad applica...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/80C07C45/73C07C49/04
Inventor 宋超田保亮唐国旗李宝芹
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products