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Polyether polyol, synthetic method thereof and lubricating oil

A technology of polyether polyol and synthesis method, which is applied in lubricating compositions, petroleum industry, etc., can solve the problems of high pour point and low viscosity index, and achieve the effect of low pour point, high viscosity index and excellent performance

Active Publication Date: 2021-08-27
上海抚佳精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved in the present invention is to overcome the defects of low viscosity index and high pour point of the lubricating oil made from polyether polyol in the prior art, thereby providing a polyether polyol and its synthesis method and lubricating oil

Method used

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  • Polyether polyol, synthetic method thereof and lubricating oil
  • Polyether polyol, synthetic method thereof and lubricating oil
  • Polyether polyol, synthetic method thereof and lubricating oil

Examples

Experimental program
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Effect test

Embodiment 1

[0039] The present embodiment provides a kind of synthetic method of polyether polyol, comprises the steps:

[0040] Such as figure 1 As shown, put 100kg of C 16-18Alcohol (mass ratio of n-hexadecanol to n-stearyl alcohol is 7:3) and 0.2kg of potassium hydroxide were added to the reactor, and the air in the reactor was replaced with nitrogen for 3 times, and then vacuumed to -0.098MPa. Then be warming up to 90 ℃, feed the mixture of propylene oxide, ethylene oxide and butylene oxide, comprise propylene oxide 484.5kg in the mixture, oxyethane 57kg, butylene oxide 28.5kg, feed reaction time After 5 hours, after the feeding is complete, carry out slaking, degassing, post-treatment (that is, adjust the pH to 6.5), and obtain 1215 kg of polyether polyol.

[0041] This embodiment also provides a gear oil, its raw material composition: 607.5kg of the polyether polyol of this embodiment, 5.1kg of 2,6-di-tert-butyl-4-methylphenol, 2.55kg of N,N '-Disalicylidene-1,2-propyldiamine, 5....

Embodiment 2

[0044] The present embodiment provides a kind of synthetic method of polyether polyol, comprises the steps:

[0045] 280kg of C 12-14 Alcohol (the mass ratio of n-dodecyl alcohol to n-tetradecyl alcohol is 7:3) and 1.7kg of sodium metal are added to the reactor, and the air in the reactor is replaced with nitrogen for 3 times, and then vacuumed to -0.098MPa. Then be warming up to 135 ℃, feed the mixture of propylene oxide / ethylene oxide / butylene oxide, wherein propylene oxide 2394kg, ethylene oxide 159.6kg, butylene oxide 106.4kg, the time of feeding reaction is After 7 hours, after the feeding is complete, carry out aging, degassing, adjust the pH to 5.5, and obtain 5488 kg of polyether polyol.

[0046] This embodiment also provides a gear oil, its raw material composition: 5488kg of the polyether polyol of this embodiment, 90.8kg of 2,6-di-tert-butyl-4-methylphenol, 60.6kg of N,N' - Disalicylidene-1,2-butyldiamine, 90.8 kg of barium petroleum sulfonate and 333.5 kg of pota...

Embodiment 3

[0049] The present embodiment provides a kind of synthetic method of polyether polyol, comprises the steps:

[0050] 410kg of C 10 Alcohol (n-decyl alcohol) and 1.2kg of sodium metal were added to the reaction kettle, and the air in the reaction kettle was replaced with nitrogen for 3 times, and then vacuumed to -0.098MPa. Then heat up to 120°C, feed the mixture of propylene oxide / ethylene oxide / butylene oxide, wherein propylene oxide 2497kg, ethylene oxide 258kg, butylene oxide 115kg, the time of feed reaction is 6 hours , after the feeding is complete, carry out aging, degassing, adjust the pH to 7.0, and obtain 6027kg of polyether polyol.

[0051] This embodiment also provides a gear oil, its raw material composition: 6027kg of polyether polyol, 64kg of 2,6-di-tert-butyl-4-methylphenol, 5kg of N,N'-disalicylidene 1,2-butyldiamine, 18.8kg of barium petroleum sulfonate and 163kg of potassium triborate.

[0052] The preparation method of above-mentioned gear oil: above-ment...

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Abstract

The invention relates to the field of production of lubricating oil, in particular to polyether polyol and a synthetic method thereof and lubricating oil. The synthetic method of the polyether polyol comprises the following steps: by taking long-chain fatty alcohol as an initiator, carrying out polymerization reaction on the long-chain fatty alcohol and mixed epoxyalkane under the catalytic action of a catalyst to prepare the polyether polyol, wherein the mixed epoxyalkane comprises epoxypropane, ethylene oxide and epoxybutane according to a mass ratio of 75-95: 4-15: 1-10. The gear oil formed by adopting the specific polyether polyol as the raw material has the advantages of low viscosity, high viscosity index, high lightning and low pour point, and also has good fluidity under a low temperature condition, so that the abrasion caused in the starting process of the vehicle is greatly reduced.

Description

technical field [0001] The invention relates to the field of lubricating oil production, in particular to a polyether polyol, a synthesis method thereof, and a lubricating oil. Background technique [0002] Lubricating oil is widely used in life and production, and can be divided into internal combustion engine oil, gear oil, hydraulic oil, brake fluid and grease according to the application route. Lubricating oil not only has the basic function of lubrication, but also has the functions of controlling friction, reducing wear, cooling, sealing isolation and cleaning. There are two main components of lubricating oil, which are lubricating oil base oil and lubricating oil additives. In industrial applications, it is often necessary to combine different lubricating oil base oils and lubricating oil additives to produce lubricating oils for different parts and different working conditions. Oil. [0003] Polyether polyol is an oil-soluble polymer synthesized by multiple monomer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28C10M169/04C10N30/12C10N30/18
CPCC08G65/2609C10M169/045C10M2209/1003C10M2207/026C10M2207/289C10M2215/18C10M2215/04C10M2219/046C10M2201/087C10M2227/061C10N2030/18C10N2030/12
Inventor 方文化李玉博
Owner 上海抚佳精细化工有限公司
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