Ester-type fire resistant hydraulic oil and production method thereof

A hydraulic oil and flame retardant technology, applied in the field of hydraulic oil, can solve the problems of short oil change period, easy oxidation and deterioration, and poor concord performance, so as to achieve low oil use cost, improve anti-oxidation performance, and improve extreme pressure performance effect

Active Publication Date: 2015-10-28
SHANDONG NORTH ZITE SPECIAL OIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before the 1970s, countries were mainly committed to the development of chlorinated hydrocarbon type, phosphate ester type fire-resistant hydraulic oil, water-containing emulsion (W / O type or O / W type) and water-ethylene glycol type fire-resistant hydraulic oil, although These fire-resistant hydraulic oils are still the main body of fire-resistant hydraulic oils, but due to the limitations of operating temperature, operating pressure, material adaptability, safety and environmental protection, they can no longer fully meet the requirements of modern industries.
[0004] However, in terms of its formulation technology, the currently used ester-type flame-resistant hydraulic oils use polyol ester base oils of unsaturated acids, and these ester-type flame-resistant hydraulic oils are not saturated due to unsaturated bonds during use. It is easy to oxidize and deteriorate due to the existence of oil, which leads to short oil change period of oil products and high energy consumption of equipment operation.
At the same time, due to the poor synergy between the commonly used extreme pressure additives and ester base oils, the carrying capacity of currently available ester type flame retardant hydraulic oils is not high, and it is difficult to meet the lubrication requirements of high-speed, heavy-duty gear oil hydraulic pumps

Method used

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  • Ester-type fire resistant hydraulic oil and production method thereof
  • Ester-type fire resistant hydraulic oil and production method thereof
  • Ester-type fire resistant hydraulic oil and production method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0037] The preparation steps of sulfurized oleic acid TMP ester:

[0038] Add 100 kg of TMP oleate, 3 kg of sulfur powder and 10 kg of activated carbon into a heated, stirred, and sealed reaction kettle and stir evenly. Stir and heat to 150°C±5°C under nitrogen protection, and react at constant temperature for 3 hours. Then cool down to 120°C±5°C and filter. The product after filtering obtains sulfurized oleic acid TMP ester base oil after decolorizing with 5 kilograms of active clays again. The analytical data of gained sulfurized oleic acid TMP ester is shown in Table 1.

[0039] The preparation process of sulfurized oleic acid, sulfurized oleic acid NP ester, sulfurized oleic acid DPE ester is the same as the preparation steps of sulfurized oleic acid TMP ester, the difference is that the raw material types and composition ratios are different, and the obtained sulfurized oleic acid polyol esters The analytical data of the base oil are shown in Table 1.

[0040] Table 1 ...

Embodiment 1-5

[0044] The formula composition of embodiment 1-5 ester type flame retardant hydraulic oil is shown in Table 2, and the preparation method is the same, as follows:

[0045] Put the vulcanized animal and vegetable oleic acid polyol ester compound base oil into the reaction kettle, heat to 100-120°C, then add antioxidant, dissolve at constant temperature and stir evenly, then cool down to 80-100°C, add other additives, and stir at constant temperature for 1 Hours, stop heating, take samples for analysis, filter and pack the finished product after the quality reaches the target.

[0046] See Table 3 for the formula, performance and comparison of the ester-type flame retardant hydraulic oil of Examples 1-5.

[0047] Table 2 The formula composition of embodiment 1-5 ester type flame retardant hydraulic oil

[0048]

[0049]

[0050] Table 3 The analysis data of embodiment 1-5 ester type flame retardant hydraulic oil

[0051]

[0052]

[0053] Conventional fire-resistan...

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Abstract

The invention relates to ester-type fire resistant hydraulic oil and a production method thereof. The ester-type fire resistant hydraulic oil comprises, by weight, the following raw materials of 90-95% of sulfide oleic acid polyol ester base oil, 0.1-5.0% of antioxidants, 1-5.0% of antiwear agents, 0.1-1.0% of clearing agents, 0.01-1.0% of demulsifier, 0.001-0.1% of anti-foaming agents and 0.05-0.5% of metal deactivator. According to the ester-type fire resistant hydraulic oil and the production method thereof, the novel sulfide oleic acid polyol ester base oil is adopted, unsaturated bonds in oleic acid polyol esters are partially or fully saturated, the problem that the unsaturated bonds are extremely prone to being oxidized is solved, and therefore the oxidation resistance of the ester-type fire resistant hydraulic oil is significantly improved; the oil change period is significantly prolonged, and the use cost of the oil is low; the extreme pressure property is improved, the bearing capacity of the oil is significantly improved, and the lubrication requirements of a high-speed heavy-load gear oil pump are met.

Description

technical field [0001] The invention relates to the field of hydraulic oil, in particular to an ester type flame retardant hydraulic oil and a production method. Background technique [0002] The role of hydraulic oil in the hydraulic system is to transmit power, lubricate the friction parts in the hydraulic system, prevent rust and corrosion, cool, seal, etc. With the continuous development of modern hydraulic technology in the direction of high pressure, high speed, high power, high efficiency and miniaturization, especially at present, people's requirements for the environment on which they live are getting higher and higher, and the hydraulic system puts forward more and more requirements for the hydraulic oil used. High requirements, which also promote the development of hydraulic oil. [0003] Hydraulic oil is usually divided into ordinary hydraulic oil, anti-wear hydraulic oil, fire-resistant hydraulic oil or flame-retardant hydraulic oil, etc. As the main series of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/10C10N30/06C10N40/08
Inventor 冯克权杨乃堂
Owner SHANDONG NORTH ZITE SPECIAL OIL
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