Biological lubricant prepared with ionic liquid as catalyst and preparation method

A technology of ionic liquid and catalyst, applied in lubricating compositions, petroleum industry, fatty acid esterification, etc., can solve the problems of low reaction selectivity, short service life, equipment corrosion, etc., and achieve good biodegradability and synthesis process The effect of simplification and less equipment corrosion

Inactive Publication Date: 2011-01-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional acidic catalysts (such as concentrated sulfuric acid, phosphoric acid, super solid acid, etc.) have many disadvantages, such as serious corrosion of equipment, many side reactions in the reaction process, resulting in low reaction selectivity and subsequent separation difficulties; although solid super acid It can overcome some of the shortcomings of liquid acid, but there are still technical problems such as easy deactivation and short service life, which do not meet the requirements of green chemical technology

Method used

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  • Biological lubricant prepared with ionic liquid as catalyst and preparation method
  • Biological lubricant prepared with ionic liquid as catalyst and preparation method
  • Biological lubricant prepared with ionic liquid as catalyst and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] According to the process steps shown in Flowchart 1, B acid ionic liquid is used to catalyze triglyceride to synthesize bio-lubricating oil.

[0028] 1. Add palm oil and trimethylolpropane to the reactor, mix the two in a weight ratio of 1:1, and add 0.5% of the total weight of the above two raw materials as a catalyst.

[0029] 2. Heat the above materials to 160°C, stir, and react for 6 hours;

[0030] 3. Move the reacted material into the cooler to cool to 40°C, and swirl sedimentation. The phosphotungstic acid pyrrole sulfonic acid ionic liquid (catalyst) becomes solid after cooling, and settles at the bottom of the swirl tank after swirl sedimentation, and the product The unreacted raw materials are still in the liquid phase, and the phosphotungstic acid pyrrole sulfonic acid ionic liquid catalyst is separated and then added to the reactor for recycling.

[0031] 4. The product and unreacted materials enter the rectification tower for vacuum distillation, the opera...

Embodiment 2

[0037] According to the process steps shown in Flowchart 1, B acid ionic liquid is used to catalyze triglyceride to synthesize bio-lubricating oil.

[0038] 1, add tung oil, trimethylol propane in the reactor, both are mixed by weight 3: 1, add the phosphomolybdic acid pyridinium sulfonate ionic liquid of 1.5% of above-mentioned two kinds of raw materials gross weights as catalyst.

[0039] 2. Heat the above materials to 180°C, stir, and react for 8 hours;

[0040] 3. Move the reacted material into the cooler to cool to 50°C, and swirl sedimentation. The phosphotungstic acid pyrrolesulfonic acid ionic liquid (catalyst) becomes solid after cooling, and settles at the bottom of the swirl tank after swirl sedimentation, and the product The unreacted raw materials are still in the liquid phase, and the phosphotungstic acid pyrrole sulfonic acid ionic liquid catalyst is separated and then added to the reactor for recycling.

[0041] 4. The product and unreacted materials enter the...

Embodiment 3

[0047] According to the process steps shown in Flowchart 1, B acid ionic liquid is used to catalyze triglyceride to synthesize bio-lubricating oil.

[0048]1. Add rapeseed oil and trimethylolpropane to the reactor, and mix the two in a weight ratio of 2:1, and add 1.0% of the total weight of the above two raw materials as a catalyst.

[0049] 2. Heat the above materials to 120°C, stir, and react for 4 hours;

[0050] 3. Move the reacted material into the cooler to cool to 30°C, and swirl sedimentation. The phosphotungstic acid pyrrole sulfonic acid ionic liquid (catalyst) becomes solid after cooling, and settles at the bottom of the swirl tank after swirl sedimentation, and the product The unreacted raw materials are still in the liquid phase, and the ionic liquid catalyst of imidazole sulfonic acid silicotungstic acid is separated and added to the reactor for recycling.

[0051] 4. The product and unreacted materials enter the rectification tower for vacuum distillation, the...

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Abstract

The invention discloses a biological lubricant prepared with ionic liquid as a catalyst and a preparation method. The preparation method specifically comprises the following steps: (1) mixing vegetable oil and trimethylolpropane in a weight ratio of 1-3:1 and then adding the B acid ionic liquid accounting for 0.5-1.5% of the above two raw materials by weight as the catalyst; (2) heating the above materials to 120-180 DEG C and stirring the materials to react for 4-8h; (3) rapidly cooling the materials after reaction to 30-50 DEG C, carrying out hydrocyclone settlement, cooling the B acid ionic liquid to solid, the solid settling at the bottom of a hydrocyclone tank after hydrocyclone settlement and the product and the materials which do not fully react being still liquid; and (4) distilling the product and the materials which do not fully react in a rectifying column, thus obtaining the biological lubricant at the bottom of the rectifying column. The biological lubricant has good biodegradability, good quality, low toxicity, good oxidation resistance and heat stability and lower cost as the intermediate products can be recycled.

Description

technical field [0001] The patent of the present invention relates to a kind of biological lubricating oil and its preparation method, in particular to a kind of Biological lubricating oil with acid ionic liquid as catalyst and preparation method thereof. Background of the invention [0002] Traditional mineral-based lubricating oils have poor biodegradability in the natural environment and can remain in water and soil for a long time, causing serious pollution to the environment. The U.S. Environmental Protection Agency pointed out that oil has acute lethal toxicity to aquatic organisms, and also has long-term subacute lethal toxicity (that is, it will not cause the death of organisms, but destroy their normal ecology). It is urgent to develop lubricating oils with superior thermal stability and low temperature performance, easy biodegradation and low toxicity. Using renewable resources from a wide range of sources as raw materials to synthesize base oils for environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/10C10M101/04C10M177/00C10N30/10
Inventor 严宗诚陈砺王红林李凯欣
Owner SOUTH CHINA UNIV OF TECH
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