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Method for producing pentaerythritol oleate under catalysis of granular solid superacid

A technology of pentaerythritol oleate and solid superacid, which is applied in chemical instruments and methods, separation/purification of carboxylate, preparation of carboxylate, etc. It can solve the problems of complicated product separation, poor product quality and many side reactions , to achieve the effect of good product color, short production cycle and high product yield

Inactive Publication Date: 2013-01-16
SICHUAN SIPO CHEMICAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is in order to overcome the problem in the prior art, thereby provide a kind of method for the catalytic production of pentaerythritol oleate of granular solid superacid, the pentaerythritol oleate of this method production has excellent low-temperature fluidity, lubricity, Viscosity-temperature characteristics, oxidation safety, cleanliness and good biodegradability solve the problems of complex product separation, poor product quality, dark color, many side reactions and environmental pollution caused by the use of sulfuric acid in traditional production. Environmentally friendly and efficient production method with simple processing, short production cycle, high esterification rate and high product yield

Method used

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  • Method for producing pentaerythritol oleate under catalysis of granular solid superacid

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Effect test

Embodiment 1

[0017] Get pentaerythritol 100kg, oleic acid 820 kg mixes, granular solid superacid is SO 4 2- / ZrO 2 -MCM-41, weighing 9.2kg, replaced with nitrogen three times, filled with nitrogen, kept at 800Pa vacuum, reacted at 180°C for 6 hours, then reacted at 200°C for 1 hour, cooled to 80°C, first passed through 600 Purpose filter cloth, and then pass through a 12500-mesh insurance filter to filter out the solid superacid, then distill the unreacted acid, alcohol or monoester through molecular distillation, and distill under reduced pressure at 180°C and 20Pa vacuum for 60 minutes to obtain pentaerythritol Oleate. Its performance index see figure 1 .

Embodiment 2

[0019] Get pentaerythritol 100kg, oleic acid 800 kg mixes, granular solid superacid is SO 4 2- / SnO 2 -MCM-41, weighing 9.0kg, replaced with nitrogen three times, filled with nitrogen, kept at 800Pa vacuum, reacted at 180°C for 6 hours, then reacted at 200°C for 1 hour, cooled to 80°C, first passed through 600 Purpose filter cloth, and then pass through a 12500-mesh insurance filter to filter out the solid superacid, then distill the unreacted acid, alcohol or monoester through molecular distillation, and distill under reduced pressure at 180°C and 20Pa vacuum for 60 minutes to obtain pentaerythritol Oleate. Its performance index see figure 1 .

Embodiment 3

[0021] Get pentaerythritol 100kg, oleic acid 850 kg mixes, granular solid superacid is SO 4 2- / TiO 2 -MCM-41, weighing 10.0kg, replaced with nitrogen three times, filled with nitrogen, kept at 800Pa vacuum, reacted at 180°C for 6 hours, then reacted at 200°C for 1 hour, cooled to 80°C, and passed through 600 Purpose filter cloth, and then pass through a 12500-mesh insurance filter to filter out the solid superacid, then distill the unreacted acid, alcohol or monoester through molecular distillation, and distill under reduced pressure at 180°C and 20Pa vacuum for 60 minutes to obtain pentaerythritol Oleate. Its performance index see figure 1 .

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Abstract

The invention discloses a method for producing pentaerythritol oleate under catalysis of granular solid superacid, and relates to a method for synthesizing ester base oil in biodegradable lubricating oil. The method comprises the following steps of: mixing pentaerythritol and oleic acid in a mass ratio of 1:(7.2-9.5), adding the granular solid superacid, and reacting at the temperature of between 140 and 240DEG C for 4 to 10 hours in the vacuum degree of 100-1,000Pa; filtering by using a 200-12,500 mesh filter screen or filter plate; and heating crude grease to the temperature of between 160 and 280DEG C, removing unreacted acid or alcohol, keeping the vacuum degree of the system ranging from 1 to 500Pa, and distilling under reduced pressure for 40 to 120 minutes to obtain the pentaerythritol oleate. The pentaerythritol oleate produced by the method has excellent low temperature fluidity, lubricity, viscosity-temperature characteristics, oxidation safety, cleanness and good biodegradability, and the method is an environment-friendly and high-efficiency production method having advantages of simple treatment, short production period, high esterification rate and high product yield.

Description

Technical field [0001] The present invention involves a method of biochemical combined ester -based oil in lubricating oil, especially a method that involves a method of catalyzing tetraolic hydraolic acid ester through granular solid super -strong acid. Background technique [0002] Lubricating oil consists of basic oil and additives, of which basic oil accounts for more than 80-90%.The main nature of lubricating oil is determined by the nature of basic oil.At present, basic oils can use mineral oil, animal and vegetable oil and synthetic lubricant.At present, most of the lubricant products are mainly mineral oils, which are unable to regenerate and have huge pollution to the environment.If the use of animal and plant oil is used as the basic oil, there are disadvantages such as thermal stability, oxidation stability, and hydrolysis stability.The basic oil of synthetic esters has excellent low temperature liquidity, lubrication, viscous temperature characteristics, oxidation saf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/58C07C67/08C07C67/48C10M105/38
Inventor 何祖慧刘勇刘大凯袁继容朱进冯自伟
Owner SICHUAN SIPO CHEMICAL CO LTD
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