Fatty acid ester alkoxylating catalyst and its preparation method

A fatty acid ester alkane and catalyst technology, which is applied in the field of catalysts and its preparation, can solve the problems of fatty acid esters not being active, and achieve the effects of less by-products, short production time, and simple and convenient operation

Active Publication Date: 2008-06-04
LIAONING OXIRANCHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing alkoxylation catalysts have no activity on fatty acid esters, the present invention proposes a catalyst capable of catalyzing the alkoxylation reaction of fatty acid esters and a preparation method thereof

Method used

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  • Fatty acid ester alkoxylating catalyst and its preparation method
  • Fatty acid ester alkoxylating catalyst and its preparation method
  • Fatty acid ester alkoxylating catalyst and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Weigh 17.6gAl(NO 3 ) 3 9H 2 O, add 21.4g deionized water, be made into aluminum nitrate solution, pour it into the separatory funnel after fully dissolving. Add 173g of deionized water into a 500ml beaker, place it on a magnetic heating stirrer, start stirring, slowly add 23g of MgO at 25°C, let it disperse completely for 15 minutes, then slowly add the prepared nitric acid dropwise at 25°C Aluminum solution, dripping for 15 minutes, aging at a constant temperature of 25°C for 30 minutes, and then washing. Add 200 ml of deionized water and stir for 10 minutes, filter under reduced pressure, and repeat washing and filtering until the pH of the system is between 6.5-7.5. 8 grams of clay was added, and it was pressed into shape, and the shaped ring-shaped catalyst was placed in a constant temperature box, and dried at a constant temperature of 100° C. for 10 hours. Then take 5g of 5% potassium alkoxide liquid and evenly spray morphine on it, place it in a desiccator at...

Embodiment 2

[0025] Weigh 30g of Al(NO 3 ) 3 9H 2 O, add 30g deionized water, be made into aluminum nitrate solution, pour it into the separatory funnel after fully dissolving. Add 124g of deionized water into a 500ml beaker, place it on a magnetic heating stirrer, start stirring, slowly add 31g of MgO at 25°C, make it completely dispersed for 15 minutes, then slowly add the prepared nitric acid dropwise at 25°C Aluminum solution, dripping for 15 minutes, aging at a constant temperature of 25°C for 30 minutes, and then washing. Add 200ml of deionized water and stir for 10 minutes, filter under reduced pressure, repeat washing and filtering until the pH of the system is between 6.5-7.5, and then filter with suction. Add 6.6 grams of clay, and press it into shape. The shaped ring-shaped catalyst is placed in a constant temperature box and dried at a constant temperature of 100° C. for 10 hours. Then take 8g of 5% potassium alkoxide liquid and evenly spray morphine on it, place it in a de...

Embodiment 3

[0027] Weigh 17.6gAl(NO 3 ) 3 9H 2 O, add 21.4g deionized water, be made into aluminum nitrate solution, pour it into the separatory funnel after fully dissolving. Add 173g of deionized water into a 500ml beaker, place it on a magnetic heating stirrer, start stirring, slowly add 23g of MgO at 25°C, let it disperse completely for 15 minutes, then slowly add the prepared nitric acid dropwise at 25°C Aluminum solution, dripping for 15 minutes, aging at a constant temperature of 25°C for 30 minutes, and then washing. Add 200 ml of deionized water and stir for 10 minutes, filter under reduced pressure, and repeat washing and filtering until the pH of the system is between 6.5-7.5. 4 grams of clay was added, and it was pressed into shape. The shaped ring-shaped catalyst was placed in a constant temperature box and dried at a constant temperature of 105° C. for 8 hours. Then take 5g of 5% potassium alkoxide liquid and evenly spray morphine on it, place it in a desiccator at room ...

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Abstract

The present invention is fatty acid ester oxyalkylating catalyst and its preparation process, and provides one kind of catalyst with oxyalkylating activity on fatty acid ester. The catalyst consists of compound active aluminum-magnesium component and active clay in the weight ratio of 3-7, and is ring shaped. The preparation process includes the steps of adsorption, washing, stoving, mixing, extrusion to form, drying, showering and roasting. The catalyst of the present invention has excellent reaction activity and selectivity, and can inhibit side reaction during the production process. The product produced adopting the catalyst has no need of post-treatment and has less side products, and this results in simplified operation process.

Description

technical field [0001] The present invention relates to a kind of catalyst that is used for the alkoxylation of fatty acid ester and preparation method thereof, more specifically, the present invention relates to a kind of catalyst that is used for the alkoxylation of fatty acid ester and uses composite magnesium aluminum as active component Catalyst and method for its preparation. Background of the invention [0002] Conventional alkoxylation catalysts such as strong bases of sodium methoxide and potassium hydroxide or various superacids can only be used for the alkoxylation of raw materials containing active hydrogen atoms in the molecule, such as alcohols, amines and acids . Such catalysts are not catalytically active if the starting material does not contain any active hydrogen atoms, such as fatty acid esters. In the synthesis of oleochemical raw materials, most of them start from natural oils, which are easy to obtain and cheap. The characteristics of fatty acid est...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/16B01J21/10B01J21/04C07B41/00
Inventor 朱建民刘兆滨董振鹏仲崇纲
Owner LIAONING OXIRANCHEM INC
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