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Catalyst for preparing nonylcyclohexanol polyoxyethylene ether and preparation method thereof

An alcohol polyoxyethylene ether, catalyst technology, applied in catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as large pore size and high mechanical strength

Active Publication Date: 2021-08-20
JIANGSU LINGFEI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the carrier obtained by the above method has achieved a certain effect, it is only suitable for a small number of catalysts, and the commercially available silica and γ-alumina carriers often cannot meet the requirements, so the carrier needs to be specially treated before use. Different reactions require catalysts; and as far as the catalyst for the preparation of nonylcyclohexanol polyoxyethylene ether by catalytic hydrogenation of nonylphenol polyoxyethylene ether is concerned, due to the large reactant molecule, the catalyst used requires a relatively large Specific surface area, larger pore size, higher mechanical strength

Method used

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  • Catalyst for preparing nonylcyclohexanol polyoxyethylene ether and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 500ml of water and 150g of commercially available silica carrier into a stirred 1.5L reactor, seal it and raise the temperature to 150°C for 6 hours, wait until the temperature drops below 40°C, then filter out the water, and then add 0.5% hydrogen into it Sodium oxide, soaked at 50°C for 3.0 hours, washed the material until neutral, and dried to obtain carrier A.

Embodiment 2

[0020] Add 500ml of water and 150g of commercially available silica carrier into a stirred 1.5L reactor, seal it and raise the temperature to 200°C for 2 hours, wait until the temperature drops below 40°C, then filter out the water, and then add 1.5% hydrogen into it Sodium oxide, soaked at 40°C for 2.0 hours, washed the material until neutral, and dried to obtain carrier B.

Embodiment 3

[0022] Add 400ml of water and 150g of commercially available γ-alumina carrier into a stirred 1.5L reactor, heat up to 180°C for 4 hours after sealing, wait until the temperature drops below 40°C, then filter out the water, and then add 0.8% Sodium hydroxide, soaked at 40°C for 4.0 hours, washed the material until neutral, dried and calcined at 700°C for 3 hours to obtain carrier C.

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PUM

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Abstract

The invention discloses a catalyst for preparing nonylcyclohexanol polyoxyethylene ether and a preparation method thereof, which belong to the field of nonionic surfactants. The preparation method has simple process and low cost, is suitable for industrial production, and the prepared catalyst has activity It has the characteristics of high height, large pore diameter, not easy to block the channel, and long service life. The invention firstly treats the carrier, then impregnates the active element, reduces, washes and dries the catalyst, then impregnates the auxiliary agent, and finally activates the catalyst, so that the prepared catalyst has high activity and good selectivity.

Description

technical field [0001] The invention belongs to the field of nonionic surfactants, in particular to a catalyst for preparing nonylcyclohexanol polyoxyethylene ether and a preparation method thereof. Background technique [0002] Nonylphenol polyoxyethylene ether (NPE) is an important non-ionic surfactant, which has good penetration, emulsification, dispersion, anti-acid, anti-alkali, anti-hard water, anti-reduction, and anti-oxidation capabilities. , Chemical industry has a wide range of uses. However, nonylphenol ethoxylates will rapidly decompose into nonylphenol (NP) in the environment. Nonylphenol is a recognized environmental hormone, which is difficult to degrade in the environment and has bioaccumulation and amplification effects. Countries have successively introduced regulations to restrict products containing nonylphenol environmental hormones. The nonylcyclohexanol polyoxyethylene ether alcohol can be close to the performance of nonylphenol polyoxyethylene ether...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/58B01J37/02B01J37/16B01J37/08B01J37/18B01J35/10C08G65/322
CPCC08G65/322B01J23/58B01J37/0201B01J37/08B01J37/16B01J37/18B01J35/635B01J35/615B01J35/647
Inventor 钱飞雷伟琴钱福强
Owner JIANGSU LINGFEI CHEM