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Oil-gas lubricating oil composition and preparation method thereof

A technology for lubricating oil composition and oil and gas, applied in the field of lubricating oil, can solve the problems of complicated operation, many kinds of additives, etc., and achieve the effects of simple preparation method, excellent viscosity-temperature property, and mild conditions

Inactive Publication Date: 2020-12-29
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the oil-gas lubricating oil provided by the invention has excellent high-temperature performance, lubricity, wear resistance, and high load-carrying capacity, which is beneficial to the maintenance of equipment, there are many types of additives used, and the operation is cumbersome.

Method used

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  • Oil-gas lubricating oil composition and preparation method thereof
  • Oil-gas lubricating oil composition and preparation method thereof
  • Oil-gas lubricating oil composition and preparation method thereof

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preparation example Construction

[0029] The present invention also provides a method for preparing the oil-gas lubricating oil composition described above, comprising the following steps:

[0030] A) mixing the heated polyalkylene glycol base oil with an antioxidant, an antiwear agent, a preservative and an antifoaming agent to obtain a mixed solution;

[0031] B) heating the mixed liquid, dehydrating under vacuum condition, and obtaining an oil-gas lubricating oil composition after cooling down.

[0032] In the preparation method of the oil-gas lubricating oil composition provided by the present invention, the raw material components and proportions used are the same as above, and will not be repeated here.

[0033] In some embodiments of the present invention, the temperature of the heated polyalkylene glycol base oil is 70-90°C.

[0034] In some embodiments of the present invention, step A) specifically includes:

[0035] Adding polyalkylene glycol base oil into a reaction vessel, stirring and heating to...

Embodiment 1

[0050] The oil-air lubricating oil composition includes:

[0051] 94.5 wt% polyalkylene glycol base oil;

[0052] 0.7wt% amine antioxidant;

[0053] 0.5wt% phenolic antioxidant;

[0054] 3.0wt% sulfur-containing phosphorus extreme pressure antiwear agent;

[0055] 0.5 wt% alkyl benzotriazoles;

[0056] 0.5wt% petroleum sulfonate;

[0057] 0.3wt% antifoaming agent;

[0058] The antifoaming agent is prepared from raw materials including methyl silicone oil and base oil, the mass ratio of the methyl silicone oil to the base oil is 1:6000, and the base oil is the above-mentioned polyalkylene Glycol base oil.

[0059] The preparation method of oil-gas lubricating oil composition, comprises the following steps:

[0060] Take the polyalkylene glycol base oil and place it in a three-necked flask with temperature control. After heating up to 80°C, add amine-type antioxidants, phenolic antioxidants, sulfur-containing phosphorus extreme pressure anti-wear agents, alkylbenzene Azo...

Embodiment 2

[0062] The oil-air lubricating oil composition includes:

[0063] 95% by weight polyalkylene glycol base oil;

[0064] 0.6wt% amine antioxidant;

[0065] 0.6wt% phenolic antioxidant;

[0066] 2.8wt% sulfur-containing phosphorus extreme pressure antiwear agent;

[0067] 0.4 wt% Alkyl Benzene Triazoles;

[0068] 0.5wt% petroleum sulfonate;

[0069] 0.3wt% antifoaming agent;

[0070] The antifoaming agent is prepared from raw materials including methyl silicone oil and base oil, the mass ratio of the methyl silicone oil to the base oil is 1:6000, and the base oil is the above-mentioned polyalkylene Glycol base oil.

[0071] The preparation method of oil-gas lubricating oil composition, comprises the following steps:

[0072] Take the polyalkylene glycol base oil and place it in a three-necked flask with temperature control. After heating up to 80°C, add amine-type antioxidants, phenolic antioxidants, sulfur-containing phosphorus extreme pressure anti-wear agents, alkylbenz...

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Abstract

The invention relates to the technical field of lubricating oil, in particular to an oil-gas lubricating oil composition and a preparation method thereof. The oil-gas lubricating oil composition comprises the following components in percentage by weight: 88.5-97 percent of polyalkylene glycol base oil; 0.8 wt%-3wt% of an antioxidant; 1.5 wt%-5wt% of an anti-wear agent; 0.5 wt%-3wt% of a preservative; 0.2 wt%-0.5 wt% of an anti-foaming agent, wherein the sum of the dosages of the components is 100%. The oil-gas lubricating oil composition provided by the invention has excellent viscosity-temperature property, extreme-pressure wear resistance, rust resistance and the like, and can meet severe conditions such as high speed, heavy load, baking and the like. In addition, the preparation methodprovided by the invention is simple, mild in condition and suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to an oil-gas lubricating oil composition and a preparation method thereof. Background technique [0002] High speed, heavy load, high efficiency, energy saving, high degree of automation and long service life are the current development direction of mechanical equipment, which undoubtedly requires higher lubrication technology. As a new type of high-efficiency gas-liquid two-phase fluid lubrication technology, oil-air lubricating oil technology is widely used in smelting machinery, papermaking machinery, chemical and food processing machinery, etc. [0003] Due to the characteristics of the base oil, under severe working conditions such as high temperature and baking, mineral-based oil-gas lubricants are prone to produce deposits such as colloids and asphaltene, resulting in poor lubrication of lubrication points, resulting in equipment damage and affecting normal productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N30/12
CPCC10M169/048C10M2209/1033C10M2215/223C10M2219/044C10M2229/041C10M2215/02C10M2207/023
Inventor 陆海魏文红李健陶菲李潘源
Owner CHINA PETROLEUM & CHEM CORP