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Ester type flame retardant hydraulic oil and production method thereof
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A hydraulic oil, flame retardant technology, applied in the field of hydraulic oil, can solve the problems of short oil change period, easy oxidative deterioration, poor synergy performance, etc. performance effect
Active Publication Date: 2017-11-10
SHANDONG NORTH ZITE SPECIAL OIL
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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
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[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 an ester-type flame retardant hydraulic oil and a production method thereof. The weight ratio of raw materials is as follows: sulfurized oleic acid polyol ester base oil: 90-95%; antioxidant: 0.1-5.0%; anti-wear agent : 1~5.0%; detergent: 0.1~1.0%; demulsifier: 0.01~1.0%; antifoaming agent: 0.001~0.1%; metal deactivator: 0.05~0.5%. The invention adopts novel sulfurized oleic acid polyol ester base oil to partially or fully saturate the unsaturated bonds in the oleic acid polyol ester, which solves the problem that the unsaturated bonds are easily oxidized, thus significantly improving the difficulty of ester type. The anti-oxidation performance of fuel hydraulic oil; the oil change period is significantly extended, and the oil use cost is low; the extreme pressure performance is improved, and the bearing capacity of the oil is significantly improved, which meets the lubrication requirements of high-speed and heavy-duty gear oil pumps.
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 ...
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