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Method for catalytic production of trimethylolpropane oleate by using solid superacid and application of method

A technology for trimethylolpropane oleate and methylolpropane oleate, which is applied in the field of solid super acid catalyzed production of trimethylolpropane oleate, can solve the problems of easy foaming of products, difficulty in separation and purification, etc. , to achieve the effect of improving production efficiency and solving the problem of easy foaming and difficult purification

Inactive Publication Date: 2011-04-13
SHENYANG POLYTECHNIC UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, commonly used oxides, such as zinc oxide, can react with oleic acid to form the corresponding oleate, and the final product is prone to foam, which brings difficulties to the separation and purification of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Get trimethylolpropane 100kg, oleic acid 630kg mixes, powdery solid superacid 0.73kg, solid superacid is SO 4 2- / ZrO 2 -Al 2 o 3 , under 500Pa vacuum degree, react at 180°C for 6 hours, filter the obtained product with a 600-mesh filter cloth, filter out the solid superacid, and distill the filtered reaction product under reduced pressure at 200°C and 200Pa vacuum degree for 1 hour to remove untreated The reactant was reacted to obtain trimethylolpropane oleate, and the esterification rate was 93.5%.

Embodiment 2

[0017] Get trimethylolpropane 100kg, oleic acid 630kg mixes, powdery solid superacid 0.73kg, solid superacid is SO 4 2- / ZrO 2 , under 500Pa vacuum degree, react at 180°C for 7 hours, filter the obtained product with a 600-mesh filter cloth, filter out the solid superacid, and distill the filtered reaction product under reduced pressure at 200°C and 200Pa vacuum degree for 1 hour to remove untreated The reactant was reacted to obtain trimethylolpropane oleate, and the esterification rate was 91.3%.

Embodiment 3

[0019] Get trimethylolpropane 100kg, oleic acid 420kg mixes, powdery solid superacid 20.8kg, solid superacid is SO 4 2- / TiO 2 -Al 2 o 3 -SiO 2 , under 400Pa vacuum degree, react at 190°C for 5 hours, filter the obtained product with a 500-mesh filter screen, filter out the solid superacid, and distill the filtered reaction product under reduced pressure at 220°C and 600Pa vacuum degree for 1.5 hours to remove residual The reactants were reacted to obtain trimethylolpropane oleate, and the esterification rate was 96.5%.

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Abstract

The invention relates to a method for catalytic production of trimethylolpropane oleate by using solid superacid and an application of the method. The method comprises the following steps: esterification reaction: mixing trimethylolpropane with oleic acid according to the weight ratio of 1:(2.1-9.5), simultaneously adding the solid superacid, and carrying out reaction under the vacuum degree of 10-1000Pa and the temperature of 120-200 DEG C for 4-10 hours; filtration: using a 10-600 mesh filter mesh or a filter plate to filter reaction products, and removing the solid superacid; and removal of unreacted reactants: heating the reaction products after the filtration to 180-300 DEG C, keeping the vacuum degree of a system at 1-1000Pa, carrying out vacuum distillation for 40-120 minutes, and removing the unreacted reactants to obtain the trimethylolpropane oleate. The method has the advantages of solving the problems of complex product separation, poor product quality, dark color, more side reactions, environmental pollution and the like caused by the use of sulfuric acid during the traditional production processes of the trimethylolpropane and the oleic acid.

Description

technical field [0001] The invention relates to a method for producing trimethylolpropane oleate catalyzed by a solid superacid produced without pollutants in the production process and an application thereof. Background technique [0002] During the use of lubricating oil, with the operation of machinery, 50% of the total mass of lubricating oil will be scattered into the surrounding environment. The main component base oil in traditional lubricating oil usually uses petroleum isolates, which have poor biodegradability, and the general degradation rate is only about 20%. The pollution caused by lubricating oil to the environment is already very serious. Vegetable oil has excellent lubricating properties, good biodegradability, and no pollution to the environment. It has become the first choice for high-grade lubricants. Trimethylolpropane oleate, which is made from vegetable oil, is an excellent lubricant with good thermal stability and biodegradability. The method for pr...

Claims

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Application Information

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IPC IPC(8): C07C69/58C07C67/08B01J27/053B01J23/30B01J21/06
Inventor 王松吴晓艺李三喜张爱玲王宜波李治辉李元鸿
Owner SHENYANG POLYTECHNIC UNIV
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