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Green method for preparing butanol and octanol by hydrogenation catalyst

A technology of hydrogenation catalyst and palladium catalyst, which is applied in the direction of hydrogenation preparation, chemical instruments and methods, preparation of hydroxyl compounds, etc., can solve the problems of complex preparation process and high cost of raw materials, and achieve the effect of high catalytic activity, low investment and enhanced efficiency

Active Publication Date: 2020-04-17
淄博诺奥化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned methods for preparing butanol and octanol all have problems such as high raw material cost and complicated preparation process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of the monoatomic palladium catalyst is as follows: take 100ml of deionized water and place it on the bottom of the stirred reactor and heat it to 70°C, add 10ml of sodium sulfate solution, add 20g of aluminum sulfate while continuing to stir, and test that the pH reaches 4.2 to stop feeding. Aged overnight at room temperature; after filtration, washing, molding, and drying, spherical Al 2 o 3 Carrier; weigh 10g of prepared spherical Al 2 o 3 Put the carrier into a 400ml quartz beaker, add 200ml deionized water and 10ml ethylene glycol solution, stir ultrasonically for 15min, add 0.1g palladium chloride solution, turn on the xenon light source and directly irradiate the quartz beaker for 1h, wash with deionized water, and centrifuge for 3 and drying at 30° C. for 3 h to obtain the single-atom palladium catalyst.

[0027]The initial distillation pretreatment is a three-tower continuous treatment process of butyraldehyde tower, butanol tower and ...

Embodiment 2

[0030] The preparation method of the monoatomic palladium catalyst is as follows: take 100ml of deionized water and place it on the bottom of the stirred reactor and heat it to 80°C, add 10ml of sodium sulfate solution, add 20g of aluminum sulfate while continuing to stir, and test that the pH reaches 3.8 to stop feeding. Aged overnight at room temperature; after filtration, washing, molding, and drying, spherical Al 2 o 3 Carrier; weigh 1.5g of the prepared carrier and put it into a 400ml quartz beaker, then add 200ml deionized water and 10ml ethylene glycol solution, stir ultrasonically for 15min, add 0.12g palladium chloride solution, turn on the xenon lamp light source and directly irradiate the quartz beaker for 1h, use Wash with deionized water, centrifuge three times, and dry at 30° C. for 3 hours to obtain the single-atom palladium catalyst.

[0031] The initial distillation pretreatment is a three-tower continuous treatment process of butyraldehyde tower, butanol tow...

Embodiment 3

[0034] The preparation method of the monoatomic palladium catalyst is as follows: take 100ml of deionized water and place it on the bottom of the stirring reactor and heat it to 80°C, add 10ml of sodium sulfate solution, add 20g of aluminum sulfate while continuing to stir, and stop feeding when the test pH reaches 3.6. Aged overnight at room temperature; after filtration, washing, molding, and drying, spherical Al 2 o 3 Carrier; weigh 1.5g of the prepared carrier and put it into a 400ml quartz beaker, then add 200ml deionized water and 10ml ethylene glycol solution, stir ultrasonically for 15min, add 0.12g palladium chloride solution, turn on the xenon lamp light source and directly irradiate the quartz beaker for 1h, use Wash with deionized water, centrifuge three times, and dry at 30° C. for 3 hours to obtain the single-atom palladium catalyst.

[0035] A green method for preparing butanol and octanol with a hydrogenation catalyst. The initial fraction obtained in Example ...

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PUM

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Abstract

The invention relates to a green method for preparing butanol and octanol, and in particular, relates to a green method for preparing butanol and octanol by using a hydrogenation catalyst. The methodcomprises the steps: by taking butanol and octanol raffinate as a raw material, carrying out primary distillation pretreatment to obtain a primary fraction, mixing and preheating the primary fraction,introducing the primary fraction into a catalytic rectification tower, carrying out catalytic hydrogenation reaction, filling the catalytic rectification tower with a monatomic palladium catalyst, and extracting a reaction product from the tower kettle of the catalytic rectification tower to obtain butanol and octanol, wherein the monatomic palladium catalyst is a monatomic palladium catalyst prepared by taking aluminum oxide as a carrier and utilizing a photodeposition method. According to the monoatomic palladium catalyst prepared by the invention, metal is uniformly dispersed on the carrier in a monoatomic form, excellent catalytic performance is formed, and more active sites of the monoatomic catalyst are exposed, so that the catalytic hydrogenation efficiency is remarkably enhanced;the high-purity butanol and octanol is prepared by adopting proper processes and conditions, the purity of the product is greater than or equal to 98.8%, and the single yield is greater than or equalto 99.1%.

Description

technical field [0001] The invention relates to a green method for preparing butyl-octyl alcohol, in particular to a green method for preparing butyl-octanol with a hydrogenation catalyst. Background technique [0002] Butanol and octanol are commonly called butanol because they can be produced by hydroxyl synthesis in the same device. Butyl octanol is a colorless, transparent, flammable oily liquid. Butyl octanol is an important raw material for the synthesis of fine chemical products, mainly used in the production of plasticizers, solvents, dehydrating agents, defoamers, dispersants, flotation agents, petroleum additives and synthetic fragrances. [0003] Butanol is a new biofuel with great potential, known as the second generation biofuel. The advantage of biobutanol as a new biofuel is that it has significant environmental benefits compared with transportation fuels derived from petroleum refining and does not produce SO when burned X or NO X , can reduce environment...

Claims

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Application Information

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IPC IPC(8): C07C29/141C07C29/17C07C29/80B01J23/44C07C31/12C07C31/125
CPCC07C29/141C07C29/172B01J23/44C07C29/80C07C31/12C07C31/125Y02P20/10Y02E50/10
Inventor 崔课贤楚庆岩周立亮杨彬郭振兴杨震缪金帅
Owner 淄博诺奥化工有限公司