Flame-retardant hydraulic oil and preparation and application thereof

A hydraulic oil and flame retardant technology, applied in the petroleum industry, lubricating compositions, etc., can solve problems such as poor lubricity, limited application range, and failure to meet the long-life requirements of hydraulic systems, and achieve the effect of simple process conditions
CN101831346BActive Publication Date: 2013-01-02上海海都化学科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
上海海都化学科技有限公司
Publication Date
2013-01-02

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Abstract

The invention provides flame-retardant hydraulic oil, which comprises the following components in percentage by weight: 1.9 to 4.5 percent of antioxidant, 1.5 to 3.5 percent of extreme-pressure abrasion resistant agent, 5 to 50ppm of antifoaming agent, 0.1 to 0.4 percent of anti-rusting agent and 92 to 97 percent of base oil, wherein the base oil is neopentyl polyol diacid composite ester which is prepared by fully esterifying carboxyl of aliphatic dibasic acid of C5-12 with mixed alcohol consisting of neopentyl glycol, trimethylolpropane and pentaerythritol and terminating the esterified product with unsaturated unitary fatty acid of C14-20. The flame-retardant hydraulic oil provided by the invention can be applied to various high-temperature and high-pressure hydraulic systems easy to contact naked flame. Compared with mineral-based (compressor) hydraulic oil, the flame-retardant hydraulic oil has the advantages of energy conservation, reduced oil consumption, reduced environmental pollution and prolonged service life, and can fully meet the working requirements of the high-temperature and high-pressure hydraulic systems easy to contact naked flame.
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Description

technical field

[0001] The invention relates to a fire-resistant hydraulic oil and its preparation and application, belonging to the technical field of industrial lubricating oil. Background technique

[0002] Hydraulic machinery has been widely used in industries such as iron and steel, electric power, coal and machinery. As a power medium, hydraulic oil is the key material of hydraulic transmission technology, and it is also one of the three important oil products with the largest consumption of industrial lubricating oil. With the continuous development of modern hydraulic technology, some hydraulic systems often work under high pressure and high temperature conditions. More stringent requirements are placed on the flame resistance of the hydraulic oil used. Before the 1970s, countries devoted themselves to the development of water-containing emulsions (W / O and O / W types), water-glycol type, non-aqueous phosphate ester type, and chlorinated hydrocarbon type fire-resista...

Claims

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