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Water-ethylene glycol nonflame hydraulic fluid and preparation thereof

A technology of ethylene glycol and hydraulic fluid, which is applied in the petroleum industry, lubricating compositions, etc., can solve the problems of flame resistance, cold resistance, wear resistance, rust resistance, anti-foaming, and unsatisfactory preparation methods, etc., and achieve reduction Effects of wear and load carrying capacity

Inactive Publication Date: 2009-01-21
张亚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently used hydraulic fluids still have defects in their performance. Because the composition and content of each component and the preparation method are not ideal, the current hydraulic fluids are resistant to fire, cold, wear, rust, and foam. The performance cannot meet the satisfaction we need

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A water-ethylene glycol fire-resistant hydraulic fluid, its components and parts content are:

[0036] Demineralized water: 45 kg; Ethylene glycol: 25 kg; Polyether: 15 kg; Caprylic acid: 1.5 kg; Diethanolamine: 3.0 kg; Isooctyl alcohol: 0.1 kg; Morpholine: 0.5 kg;

[0037] A water-ethylene glycol fire-resistant hydraulic fluid, the preparation method of which is:

[0038] (1), according to the weight ratio, heat 1.5 kg of octanoic acid and 3.0 kg of diethanolamine in the reaction kettle to 50°C, stir evenly and react for 50 minutes;

[0039] (2), under continuous stirring and keeping the temperature constant, add 45 kg of demineralized water, 25 kg of ethylene glycol, 15 kg of polyether, 0.5 kg of morpholine and 0.3 kg of defoaming agent;

[0040] (3) Finally, the product is obtained by fine filtration through a filtering device.

Embodiment 2

[0042] A water-ethylene glycol fire-resistant hydraulic fluid, its components and parts content are:

[0043] Demineralized water: 43 kg; Ethylene glycol: 30 kg; Polyether: 18 kg; Caprylic acid: 1.8 kg; Diethanolamine: 3.3 kg; Isooctyl alcohol: 0.1 kg; Morpholine: 0.6 kg; kilogram.

[0044] A water-ethylene glycol fire-resistant hydraulic fluid, the preparation method of which is:

[0045] (1), according to the weight ratio, heat 1.8 kg of octanoic acid and 3.3 kg of diethanolamine in the reaction kettle to 80°C, stir evenly and react for 50 minutes;

[0046] (2), under the condition of continuous stirring and keeping the temperature constant, add 43 kilograms of demineralized water, 30 kilograms of ethylene glycol, 18 kilograms of polyether, 0.1 kilogram of isooctyl alcohol; phylloline, 0.3 kg of defoamer and 0.1 kg of dye;

[0047] (3) Finally, the product is obtained by fine filtration through a filtering device.

Embodiment 3

[0049] A kind of water glycol fire-resistant hydraulic fluid, its component and optimal part content are:

[0050] Demineralized water: 45 kg; Ethylene glycol: 40 kg; Polyether: 20 kg; Caprylic acid: 1.5 kg; Diethanolamine: 2.5 kg; Isooctyl alcohol: 0.25 kg; Morpholine: 0.25 kg; : 0.2 kg.

[0051] A water-ethylene glycol fire-resistant hydraulic fluid, the preparation method of which is:

[0052] (1), according to the weight ratio, heat 1.5 kg of octanoic acid and 2.5 kg of diethanolamine in the reaction kettle to 65°C, stir evenly and react for 50 minutes;

[0053] (2), under continuous stirring and keeping the temperature constant, add 45 kg of demineralized water, 40 kg of ethylene glycol, 20 kg of polyether, 1.5 kg of morpholine and 0.3 kg of defoaming agent, isooctyl alcohol 0.1 kg and dyestuff 0.2 kg;

[0054] (3) Finally, the product is obtained by fine filtration through a filtering device.

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PUM

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Abstract

The invention discloses water-glycol nonflammable hydraulic liquid which comprises the following compositions and the portion contents: 45 to 55 portions of demineralized water, 25 to 35 portions of glycol, 15 to 25 portions of polyether, 1.5 to 2.5 portions of octanoic acid, 3.0 to 4.0 portions of diethanolamine, 0.1 to 0.2 portion of isooctanol, 0.5 to 0.8 portion of morpholine, 0.3 to 0.8 portion of defoaming agent and 0.1 to 0.2 portion of dye. The preparation method comprises the following steps: (1) according to the portion ratio, the octanoic acid and the diethanolamine are heated to the temperature of between 50 and 80 DEG C in a reaction kettle and evenly stirred and react for 50 minutes; (2) under the condition of continuously stirring and keeping the temperature unchanged, the demineralized water, the glycol, the isooctanol, the morpholine, the dye and the defoaming agent with certain content of portion proportion are added in turn; and (3) finally the mixture is subjected to fine filtration by a filtering device to obtain the product. The product has the characteristics of flame resistance, abrasion resistance, good defoaming performance, etc.

Description

Technical field: [0001] The invention relates to a hydraulic fluid and a preparation method thereof, in particular to a water-ethylene glycol fire-resistant hydraulic fluid and a preparation method thereof. Background technique: [0002] Water-ethylene glycol fire-resistant hydraulic fluid is formulated with various special additives such as water, ethylene glycol, polymers, lubricants, vapor-liquid phase rust inhibitors, antioxidants, anti-wear agents and defoamers. into. It not only has strong flame resistance, but also has suitable viscosity, good lubricating performance, chemical stability and characteristics similar to mineral oil, so it is widely used in many industries such as metallurgy, machinery, mining, military industry and shipbuilding. use. At present, the main equipment using water-ethylene glycol fire-resistant hydraulic fluid at home and abroad include: continuous casting and rolling systems in the metallurgical industry and continuous mining machines in m...

Claims

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Application Information

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IPC IPC(8): C10M173/02C10N40/08
Inventor 张亚
Owner 张亚
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