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Methyl isobutyl ketone high-space-velocity hydrogenation catalyst, preparation method and applications thereof

A technology of methyl isobutyl ketone and catalyst, which is applied to the preparation of hydroxyl compounds, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., and can solve the problems of catalyst lack of stability and low reactivity

Inactive 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

[0012] 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 high space velocity hydrogenation of methyl isobutyl ketone, its preparation method and its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] (1) Powder preparation: Add 350 g of zirconium oxychloride to an aqueous aluminum sulfate solution containing 60 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. First add 3L of deionized water to the neutralization tank and raise the temperature to 68°C, pour the prepared aluminum sulfate solution and sodium metaaluminate solution into the neutralization tank in parallel, and control the reaction temperature of the neutralization tank to be 66-70 Between ℃, fix the flow rate of aluminum sulfate solution, adjust the flow rate of sodium metaaluminate solution so that the pH value of the reaction solution in the neutralization tank is 6.8-7.2, and stop injecting sodium metaaluminate when the aluminum sulfate solution is injected...

Embodiment 2

[0067] (1) Powder preparation: Add 450 g of zirconium oxychloride 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 65°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 65 and 68°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 7.0 to 7.4. When the aluminum sulfate solution is injected, the injection of the sodium...

Embodiment 3

[0072] (1) Powder preparation: Add 275 g of zirconium oxychloride 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 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 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 be between 62 and 65°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 metaaluminate so...

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Abstract

The invention discloses a methyl isobutyl ketone high-space-velocity hydrogenation catalyst, a preparation method and applications thereof. The catalyst is prepared from the following components in parts by weight: 12-26 parts of cobalt and 70-88 parts of a zirconium-modified alumina carrier based on 100 parts of the total weight of the catalyst, wherein the zirconium-modified aluminum oxide is analuminum oxide carrier formed by molding pseudo-boehmite powder, the pseudo-boehmite powder is prepared by using an aluminum sulfate solution containing a soluble zirconium salt as a raw material through an aluminum sulfate-sodium metaaluminate method, the zirconium content in the aluminum oxide carrier is 1-8 wt%, and the sulfate ion content is less than 0.4 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 catalyst for high space velocity hydrogenation of methyl isobutyl ketone, a preparation method and an application thereof. 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 ab...

Claims

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Application Information

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IPC IPC(8): B01J23/75B01J27/053C07C29/145C07C31/125
CPCB01J23/75B01J27/053C07C29/145C07C31/125
Inventor 田保亮唐国旗向良玉李宝芹杨溢彭晖王国清
Owner CHINA PETROLEUM & CHEM CORP
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