Synthesis method of alcohol compound

A synthesis method and technology for ketone compounds, applied in the field of catalysis, can solve the problems of high price and cost of precious metal catalysts, strict requirements on raw material impurities, and easy occurrence of side reactions, etc. Effect

Inactive Publication Date: 2020-07-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although precious metals have these advantages, the price and cost of precious metal catalysts are too high, and the requirements for raw material impurities are strict
The supported nickel catalyst is prone to agglomeration during the preparation process, the catalytic efficiency is low, and side reactions are prone to occur

Method used

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  • Synthesis method of alcohol compound
  • Synthesis method of alcohol compound
  • Synthesis method of alcohol compound

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preparation example Construction

[0052] The present invention provides a method for synthesizing ketone compounds, comprising: using a carbon-coated nickel nanocomposite material containing alkaline earth metals as a catalyst, and catalyzing the ketone compounds to carry out a hydrogenation reduction reaction in a hydrogen atmosphere; the chemical reaction equation is exemplified as follows:

[0053]

[0054] Wherein, the nanocomposite material has a core-shell structure with a shell layer and an inner core, the shell layer is a graphitized carbon layer containing alkaline earth metal, nitrogen and oxygen, and the inner core is nickel nanoparticles.

[0055] In some embodiments, the ketone compound can be aliphatic ketone, aryl ketone or alicyclic ketone, namely R 1 and R 2 Can be alkyl, cycloalkyl, aryl and R 1 and R 2 Can be the same or different, wherein, aliphatic ketone refers to a ketone in which carbon atoms in the molecule are connected into a chain, which is open-chain; attached to the aromatic...

preparation example 1

[0094] (1) Weigh 10g of nickel acetate, 10g of citric acid, and 20g of hexamethylenetetramine, add them to a beaker containing 30mL of deionized water, stir at 70°C to obtain a homogeneous solution, and continue heating and evaporating to dryness Obtain a solid precursor. Tests have proved that the solid precursor obtained in this step is soluble in water.

[0095] (2) Place the solid precursor obtained in step (1) in a porcelain boat, then place the porcelain boat in the constant temperature zone of the tube furnace, feed nitrogen gas with a flow rate of 100mL / min, and set the temperature at a rate of 5°C / min. Raise the temperature to 650°C, stop the heating after keeping the temperature for 2 hours, and cool to room temperature under a nitrogen atmosphere to obtain a carbon-coated nickel material.

[0096] (3) Weigh 2g of the carbon-coated nickel material obtained in step (2), add 4mL of an aqueous solution containing 0.5128g of magnesium nitrate, soak for 24h, and then dry...

preparation example 2

[0103] (1) Weigh 10g of nickel acetate, 20g of citric acid, and 20g of hexamethylenetetramine, add them into a beaker containing 100mL of deionized water, stir at 80°C to obtain a homogeneous solution, and continue heating and evaporating to dryness to obtain solid precursor.

[0104] (2) Place the solid precursor obtained in step (1) in a porcelain boat, then place the porcelain boat in the constant temperature zone of the tube furnace, feed in nitrogen gas with a flow rate of 150mL / min, and heat at a rate of 5°C / min. The temperature was raised to 600°C, the temperature was kept constant for 2 hours, the heating was stopped, and the carbon-coated nickel material was obtained by cooling to room temperature under a nitrogen atmosphere.

[0105] (3) Weigh 2 g of the carbon-coated nickel material obtained in step (2), add 4 mL of an aqueous magnesium nitrate solution containing 0.8589 g, impregnate for 24 h, and then dry at 120° C.

[0106] (4) The dried material obtained in ste...

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Abstract

The invention provides a synthesis method of an alcohol compound. The synthesis method comprises the following steps: taking a carbon-coated nickel nano composite material containing alkaline-earth metals as a catalyst, and catalyzing a hydrogenation reduction reaction of a ketone compound in a hydrogen atmosphere; wherein the nano composite material contains a core-shell structure with a shell layer and an inner core, the shell layer is a graphitized carbon layer containing alkaline-earth metals, nitrogen and oxygen, and the inner core is nickel nano particles. According to the method, the nano composite material is used as a catalyst; a carbon material and the nickel nano particles generate a synergistic effect and a good catalytic effect, the alkaline-earth metals of the shell layer further synergistically improve the catalytic performance of the nano composite material, and the catalyst is used for hydrogenation reduction of a ketone compound to synthesize an alcohol compound and has excellent activity, selectivity and safety.

Description

technical field [0001] The invention belongs to the field of catalysis, and in particular relates to a method for synthesizing alcohol compounds. Background technique [0002] Alcohol compounds are very important chemical intermediates, which are widely used in organic solvents, fine chemicals, medicine, pesticides, household cosmetics and other industries. For example, n-butanol is an important chemical raw material, which can be used to prepare plasticizers such as butyl phthalate, aliphatic dibasic acid ester, butyl phosphate and other chemical products such as butyric acid, butylamine and butyl acrylate. Raw materials, also used in solvents, dehydrating agents, anti-emulsifiers, oils, spices, antibiotics, vitamins and other extractants, additives for alkyd resin coatings, defoamers, mineral dressing agents, etc., have a wide range of uses and broad market prospects . [0003] Hydrogenation reaction is widely used in petrochemical production, and it is of great signific...

Claims

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Application Information

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IPC IPC(8): C07C31/10C07C29/145C07C35/08B01J27/24B01J35/10
CPCC07C29/145B01J27/24C07C2601/14B01J35/398B01J35/23B01J35/615B01J35/633B01J35/69B01J35/647C07C31/10C07C35/08
Inventor 谢婧新荣峻峰宗明生于鹏吴耿煌纪洪波林伟国
Owner CHINA PETROLEUM & CHEM CORP
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