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Catalyst for preparing methyl isobutyl carbinol and preparation method thereof

A technology of methyl isobutyl ketone and methyl isobutyl is applied to the catalyst for preparing methyl isobutyl methanol and the field of preparation thereof, and can solve the problems of low yield of methyl isobutyl methanol, difficulty in meeting industrial demands and the like , to achieve the effect of saving investment cost, simple preparation method and mild reaction process conditions

Active Publication Date: 2021-03-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the expansion of MIBC application fields, this by-product process is difficult to meet the growing industrial demand
[0004] Chinese patent CN103420786A mentions the use of copper-palladium / alumina catalyst for reaction in the method of co-production of methyl isobutyl ketone and methyl isobutyl carbinol, and the results show that the yield of methyl isobutyl carbinol is low
[0005] The catalysts involved in the above patents have shown good performance in the hydrogenation of methyl isobutyl ketone to isobutyl methanol, but there is still room for improvement, such as improving catalytic activity, reducing reaction temperature, increasing feed gas space velocity, Catalyst cost reduction, etc.

Method used

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  • Catalyst for preparing methyl isobutyl carbinol and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Select silicon balls (mainly composed of SiO 2 ) as a catalyst carrier with a diameter of 3~4mm. Put 78g of silicon balls into the reaction kettle, add deionized water, cover the silicon balls, seal, start stirring, raise the temperature to 180°C, keep warm and pressurized for two hours, then unload it and put it in a constant temperature blast drying oven. For the first drying, the temperature of the drying oven is 90°C, and the drying time is 6 hours. Weigh 28.58 grams of ammonium molybdate and prepare a 78ml solution for use. Put the dry carrier into a rotating sugar coating machine, and spray the ammonium molybdate evenly on the carrier After spraying, let it stand for 30 minutes. Put the impregnated catalyst into a constant temperature blast drying oven for secondary drying, the oven temperature is 90°C, the drying time is 2 hours, and then put into a muffle furnace for roasting, the roasting temperature is 450°C, and the roasting time is 2 hours hour, then the s...

Embodiment 2

[0026] Select silicon balls (mainly composed of SiO 2 ) as a catalyst carrier with a diameter of 3~4mm. Put 85g of silicon balls into the reaction kettle, add deionized water, cover the silicon balls, seal, start stirring, heat up to 180°C, keep warm and pressurized and expand the holes for two hours, then unload it, and put it in a constant temperature blast drying oven For the first drying, the temperature of the drying oven is 90°C, the drying time is 6 hours, and the water absorption rate of the carrier after reaming is 100%. Weigh 10.20 grams of ammonium molybdate to make 85ml solution for later use, and put the dry carrier into the rotary sugar coating machine In the process, the ammonium molybdate is evenly sprayed onto the carrier, and after the spraying is completed, it is left to stand for 30 minutes. Put the impregnated catalyst into a constant temperature blast drying oven for secondary drying, the oven temperature is 90°C, the drying time is 2 hours, and then put...

Embodiment 3

[0028] Select silicon balls (mainly composed of SiO 2 ) as a catalyst carrier with a diameter of 3~4mm. Put 84g of silicon balls into the reaction kettle, add deionized water, cover the silicon balls, seal, start stirring, heat up to 180°C, keep warm and pressurized and expand the holes for two hours, then unload it, and put it in a constant temperature blast drying oven For the first drying, the temperature of the drying oven is 90°C, and the drying time is 6 hours. The water absorption rate of the carrier after the expansion is 100%. Weigh 8.17 grams of ammonium molybdate to make 84 solution for later use, and put the dry carrier into the rotating sugar coating machine In the process, the ammonium molybdate is evenly sprayed onto the carrier, and after the spraying is completed, it is left to stand for 30 minutes. Put the impregnated catalyst into a constant temperature blast drying oven for secondary drying, the oven temperature is 90°C, the drying time is 2 hours, and the...

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Abstract

The invention provides a catalyst for preparing methyl isobutyl carbinol and a preparation method thereof, and belongs to the technical field of catalysts. The catalyst contains 10%-25% of active components Cu and Mo, 70%-85% of a carrier silicon dioxide and the balance of auxiliaries. The mass ratio of copper to molybdenum in the active components is 0.5-9. The catalyst is prepared by adopting astep-by-step impregnation method. The catalyst has the advantages of high methyl isobutyl methanol conversion rate, good selectivity, mild reaction conditions and the like, and is easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to a catalyst for preparing methyl isobutyl carbinol and a preparation method thereof. Background technique [0002] Methyl isobutyl carbinol (MIBC for short) is a medium-boiling solvent with excellent performance, mainly used as a solvent for dyes, petroleum, rubber, resin, paraffin, nitrocellulose, ethyl cellulose and resin automotive coatings. It is used as raw material for organic synthesis, mineral flotation agent and brake fluid, etc. MIBC is used as an inert solvent for nitrocellulose paint, which can increase the gloss and smoothness of the paint, and improve the redness performance; MIBC is used as a foaming agent in the mineral processing process, which helps to improve the ore processing capacity and reduce the amount of foaming agent; As a mineral flotation agent, MIBC can extract silica and copper sulfate ore. [0003] At present, there are two kinds of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/885C07C29/145C07C31/125
CPCB01J23/885B01J23/002C07C29/145C07C31/125B01J2523/00B01J2523/17B01J2523/41B01J2523/68Y02P20/52
Inventor 孙远龙袁浩然吴结华张皓吕锋
Owner CHINA PETROLEUM & CHEM CORP
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