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Screw air compressor oil composition and preparation method thereof

An air compressor oil and screw type technology, which is applied in the direction of lubricating compositions, etc., can solve the problems of air compressor components such as corrosion, increased kinematic viscosity and acid value, harsh working conditions, etc. Viscosity and acid value change is small, the effect of reducing corrosion

Inactive Publication Date: 2015-12-23
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the screw air compressor oil currently on the market is used under harsh conditions, and it is easy to oxidize and deteriorate during use, thereby increasing the kinematic viscosity and acid value, and the acidic substances in the oil will also degrade in the presence of moisture. Moderately corrosive to air compressor components

Method used

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  • Screw air compressor oil composition and preparation method thereof
  • Screw air compressor oil composition and preparation method thereof
  • Screw air compressor oil composition and preparation method thereof

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preparation example Construction

[0063] The present invention also provides a kind of preparation method of screw air compressor oil composition, comprises the following steps:

[0064] Mixing synthetic hydrocarbon base oil, synthetic ester base oil and functional additives to obtain screw air compressor oil, the temperature of the mixing is 60°C to 80°C; the functional additives include antiwear agents and metal deactivators , Antirust agent, antioxidant, pour point depressant, antiemulsifier, antifoam agent and acid scavenger.

[0065] In the present invention, the synthetic hydrocarbon base oil, synthetic ester base oil and functional additives are firstly mixed, wherein the present invention has no special restrictions on the mixing method and mixing order, and can be mixed according to the following method:

[0066] After mixing the synthetic hydrocarbon base oil and the synthetic ester base oil, heating and dehydrating, the temperature is lowered to 60-80°C, and then functional additives are added, mixe...

Embodiment 1

[0076] 1mol sebacic acid (purchased from Tongliao Xinghe Biotechnology Co., Ltd.), 2.6mol of isotridecanol (purchased from Foshan Kaizhou Chemical Co., Ltd.) and 1.5g p-toluenesulfonic acid (purchased from Sanyuan Chemical Trading Co., Ltd.) After the catalyst is mixed evenly, heat to 190°C for esterification reaction. After 4 hours of reaction, distill off excess acid under reduced pressure to obtain crude ester. After cooling down to 60°C, carry out alkali washing, water washing, dehydration and drying, and filter to obtain the base Oil.

Embodiment 2

[0078] 1mol phthalic acid (purchased from Tongliao Xinghe Biotechnology Co., Ltd.), 2.6mol of isotridecanol (purchased from Foshan Kaizhou Chemical Co., Ltd.) and 1.5g p-toluenesulfonic acid (purchased from Sanyuan Chemical Trade Co., Ltd. ) after the catalyst is mixed evenly, heated to 190°C for esterification reaction, after 4 hours of reaction, the excess acid was distilled off under reduced pressure to obtain the crude ester, after cooling down to 60°C, it was washed with alkali and water, then dehydrated and dried, and filtered to obtain base oil.

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Abstract

The invention provides a screw air compressor oil composition. The screw air compressor oil composition comprises the following components in percentage by weight: 75wt%-94wt% of synthetic hydrocarbon base oil, 5wt%-20wt% of synthetic ester base oil and 1wt%-5wt% of functional additives, wherein the functional additives include one or more of an anti-wear agent, a metal deactivator, a rust inhibitor, an antioxidant, a pour point depressant, a demulsifying agent, an anti-foaming agent and an acid scavenger. By taking mixed hydrocarbon oil of the synthetic hydrocarbon base oil and the synthetic ester base oil as the base oil and simultaneously adding functional additives, the obtained screw air compressor oil composition is not easily oxidized and degraded in a use process, and the changes of the dynamic viscosity and the acid value are relatively small, so that the corrosion to units of an air compressor can be reduced, and the safe operation of the screw air compressor is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of air compressor oil, and in particular relates to an air compressor oil composition and a preparation method thereof. Background technique [0002] Air compressor is a general-purpose machine that compresses air to provide power transmission, and is widely used in various fields such as mining, chemical industry, machinery, and food. As power equipment, air compressors play an important role in chemical industry, machinery, electronics, coal, automobile, construction and other industries. China's air compressors started in the late 1950s, roughly experienced the initial digestion and absorption of former Soviet products, independent research and development in the 1960s and 1970s, and the large-scale introduction of international advanced technology in the 1980s and 1990s. It has achieved three historical stages of greater development, and has now entered a stage of stable development. With the developme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M177/00
Inventor 李姝秦颖马宏赵玉贞金承华熊瑶
Owner CHINA PETROLEUM & CHEM CORP
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