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Methyl isobutyl ketone low-temperature hydrogenation catalyst, preparation method and applications thereof

A technology of methyl isobutyl ketone and hydrogenation catalyst, which is applied in the direction of preparation of hydroxyl compounds, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., and can solve low reaction activity and lack of stability of catalysts And other issues

Active Publication Date: 2020-03-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to solve the technical problems of lack of catalyst stability and low reactivity in the prior art, the present invention provides a catalyst for the low-temperature hydrogenation of methyl isobutyl ketone, a preparation method and its application

Method used

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  • Methyl isobutyl ketone low-temperature hydrogenation catalyst, preparation method and applications thereof
  • Methyl isobutyl ketone low-temperature hydrogenation catalyst, preparation method and applications thereof

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Embodiment 1

[0065] (1) Powder preparation: Add 190 g of lanthanum nitrate hexahydrate to an aqueous aluminum sulfate solution containing 70 g / L of aluminum oxide in a volume of 30 L, and dissolve aluminum hydroxide with aqueous sodium hydroxide solution to prepare sodium metaaluminate containing 68 g / L of aluminum oxide solution, sodium metaaluminate solution was prepared in excess to adjust the pH value of pseudo-boehmite synthesis. Add 3L of deionized water to the neutralization tank and raise the temperature to 70°C, pour the prepared aluminum sulfate solution and sodium metaaluminate solution into the synthesis tank, and control the temperature in the neutralization tank to 68-72°C In between, fix the flow rate of the aluminum sulfate solution, adjust the flow rate of the sodium metaaluminate solution so that the pH value of the reaction solution in the synthesis tank is 6.8 to 7.2, and stop injecting the sodium metaaluminate solution when the aluminum sulfate solution is injected. Th...

Embodiment 2

[0070] (1) Powder preparation: Add 515 g of lanthanum nitrate hexahydrate to an aqueous aluminum sulfate solution containing 65 g / L of aluminum oxide in a volume of 30 L, and dissolve aluminum hydroxide with aqueous sodium hydroxide solution to prepare sodium metaaluminate containing 65 g / L of aluminum oxide solution, sodium metaaluminate solution was prepared in excess to adjust the pH value of pseudo-boehmite synthesis. Add 3L of deionized water to the neutralization tank and raise the temperature to 66°C, pour the prepared aluminum sulfate solution and sodium metaaluminate solution into the synthesis tank, and control the temperature in the neutralization tank to 65-68°C In between, fix the flow rate of the aluminum sulfate solution, adjust the flow rate of the sodium metaaluminate solution so that the pH value of the reaction solution in the synthesis tank is 7.0 to 7.4, and stop injecting the sodium metaaluminate solution when the aluminum sulfate solution is injected. Th...

Embodiment 3

[0075] (1) Powder preparation: Add 275 g of lanthanum nitrate hexahydrate to an aqueous aluminum sulfate solution containing 66 g / L of aluminum oxide in a volume of 30 L, and dissolve aluminum hydroxide with aqueous sodium hydroxide solution to prepare sodium metaaluminate containing 72 g / L of aluminum oxide solution, sodium metaaluminate solution was prepared in excess to adjust the pH value of pseudo-boehmite synthesis. Add 3L of deionized water to the neutralization tank and raise the temperature to 63°C, pour the prepared aluminum sulfate solution and sodium metaaluminate solution into the synthesis tank, and control the temperature in the neutralization tank to be between 63 and 66°C During this period, the flow rate of the aluminum sulfate solution is fixed, and the flow rate of the sodium metaaluminate solution is adjusted so that the pH value of the reaction solution in the synthesis tank is 7.2 to 7.5. When the aluminum sulfate solution is injected, the sodium metaalum...

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Abstract

The invention discloses a methyl isobutyl ketone low-temperature hydrogenation catalyst, a preparation method and applications thereof. The catalyst is prepared from the following components in partsby weight: 10-25 parts of nickel, 0.5-3 parts of lead, and 72-89.5 parts of a lanthanum-modified aluminum oxide carrier based on 100 parts of total weight of the catalyst, wherein the content of lanthanum in the carrier is 1-5 wt%. The catalyst disclosed by the invention is good in stability, and has high activity and high selectivity at a low temperature.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a low-temperature hydrogenation catalyst for methyl isobutyl ketone, a preparation method and an application. Background technique [0002] Methyl isobutyl carbinol (also known as 4-methyl-2-pentanol, referred to as MIBC in English), is an excellent medium-boiling solvent, used as raw material for organic synthesis, mineral flotation lotion, such as extraction of silicon and nickel sulfate It can also be used as brake fluid, as a solvent for dyes, petroleum, rubber, resin, paraffin, nitrocellulose and ethyl cellulose, etc., as an inert solvent for nitrocellulose paint, which can increase the gloss and Smoothness, improved redness, used as a solvent in additive manufacturing of lubricating oils, etc. [0003] The use of methyl isobutyl carbinol (MIBC) as a mineral flotation agent has considerable market prospects. In 2013, the global consumption of flotation agents was about 100,000 ton...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/835C07C29/145C07C31/125
CPCB01J23/835C07C29/145C07C31/125Y02P20/584
Inventor 唐国旗田保亮向良玉杨溢彭晖王国清
Owner CHINA PETROLEUM & CHEM CORP
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