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Preparation method of water glycol fire-retardant hydraulic fluid

A water glycol and hydraulic fluid technology, applied in lubricating compositions, petroleum industry, etc., can solve the problems of decreased anti-rust performance, decreased viscosity retention, etc., to achieve the best low-temperature performance, excellent viscosity retention, and best anti-rust performance effect

Pending Publication Date: 2021-11-09
青岛华瑞泰格工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of water glycol flame retardant hydraulic fluid, to solve the problem that the existing water glycol flame retardant hydraulic oil proposed in the above background technology must be used in a relatively high temperature environment. When used under low temperature, and when the ambient temperature of use is lowered, the viscosity retention will decrease, and the antirust performance will decrease.

Method used

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  • Preparation method of water glycol fire-retardant hydraulic fluid

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preparation example Construction

[0020] see figure 1 , the present invention provides a technical solution: a preparation method of water glycol flame retardant hydraulic fluid, the specific raw material composition ratio of the water glycol flame retardant hydraulic fluid includes: polyester grade ethylene glycol 30-40%, Water-soluble polyethylene glycol 10-18%, primary reverse osmosis water 35-48%, PH stabilizer triethanolamine 1-3%, rust inhibitor alcohol amine borate 1-2%, metal passivator benzene Sodium dithiazole 0.1-0.6%, defoamer water-soluble silicone 0.1-0.3%, fungicide N,N-methylenebismorpholine 1-2%;

[0021] The specific preparation method steps of the water glycol flame retardant hydraulic fluid are as follows:

[0022] Step 1: Take polyester grade ethylene glycol 30-40%, water-soluble polyethylene glycol 10-18%, primary reverse osmosis water 35-48%, PH stabilizer triethanolamine 1-3%, rust inhibitor alcohol Amine borate 1-2%, metal deactivator benzothiazole sodium 0.1-0.6%, defoamer water-sol...

Embodiment 1

[0031] The specific preparation method steps of the water glycol flame retardant hydraulic fluid are as follows:

[0032] Step 1: Take 30% of polyester grade ethylene glycol, 10% of water-soluble polyethylene glycol, 35% of primary reverse osmosis water, 1% of pH stabilizer triethanolamine, 1% of rust inhibitor alcohol amine type borate, Metal deactivator benzothiazole sodium 0.1%, defoamer water-soluble silicone 0.1%, and fungicide N,N-methylenebismorpholine 1% are placed for later use;

[0033] Step 2: Take polyester grade ethylene glycol, water-soluble polyethylene glycol and primary reverse osmosis water and pour them into the container respectively, and heat the mixture continuously through the heating device. When the temperature of the mixture rises to 50 degrees Celsius, the Stir for 30min;

[0034] Step 3: Add pH stabilizer triethanolamine and rust inhibitor alcoholamine borate to the mixture obtained in step 2, increase the reaction temperature to 70 degrees Celsius...

Embodiment 2

[0038] The specific preparation method steps of the water glycol flame retardant hydraulic fluid are as follows:

[0039]Step 1: Take 35% of polyester grade ethylene glycol, 14% of water-soluble polyethylene glycol, 42% of primary reverse osmosis water, 2% of pH stabilizer triethanolamine, 1.5% of rust inhibitor alcohol amine type borate, Metal deactivator benzothiazole sodium 0.3%, defoamer water-soluble silicone 0.2%, bactericide N,N-methylenebismorpholine 1.5% and put aside for later use;

[0040] Step 2: Take polyester-grade ethylene glycol, water-soluble polyethylene glycol and primary reverse osmosis water and pour them into the container respectively, and heat the mixture continuously through the heating device. When the temperature of the mixture rises to 55 degrees Celsius, the Stir for 35 minutes;

[0041] Step 3: Add pH stabilizer triethanolamine and rust inhibitor alcoholamine borate to the mixture obtained in step 2, increase the reaction temperature to 80 degree...

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Abstract

The invention belongs to the technical field of hydraulic oil preparation, and particularly relates to a preparation method of water glycol fire-retardant hydraulic fluid. The water glycol fire-retardant hydraulic fluid comprises, by weight, 30-40% of polyester-grade glycol, 10-18% of water-soluble polyethylene glycol, 35-48% of first-grade reverse osmosis water, 1-3% of a pH stabilizer triethanolamine, 1-2% of an antirust agent alcohol amine type borate, 0.1-0.6% of a metal passivator benzothiazole sodium, 0.1-0.3% of a defoaming agent water-soluble organic silicon, 0.1-0.3% of a bactericide N, N-methylenebismorpholine. The water glycol fire-retardant hydraulic fluid has excellent low-temperature performance, and still has excellent viscosity retentivity and excellent rust-proof performance even used in a low temperature environment.

Description

technical field [0001] The invention relates to the technical field of hydraulic oil preparation, in particular to a preparation method of water glycol flame retardant hydraulic fluid. Background technique [0002] With the advancement of coal mining technology, hydraulic equipment is developing in the direction of high pressure, high speed, high temperature and large capacity. When the hydraulic medium is in use, the possibility of leakage from pipelines, pumps and valves is also increasing. Traditional mineral oil-based anti-wear hydraulic fluid is flammable, and it is easy to cause fire accidents when used in hydraulic equipment close to high temperature and fire source, resulting in personal injury and property loss. In order to ensure the safety of mines, especially the safety of coal mine production, it is urgent to use fire-resistant hydraulic fluids for coal mine operations. [0003] Existing flame retardant hydraulic fluids include water-ethylene glycol type flame ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10N40/08C10N30/12C10N30/08C10N30/06C10N30/16
CPCC10M173/02C10M2207/022C10M2209/104C10M2201/02C10M2215/042C10M2227/061C10M2219/104C10M2215/226C10N2040/08C10N2030/06C10N2030/08C10N2030/12C10N2030/16
Inventor 张细庆赵滨
Owner 青岛华瑞泰格工贸有限公司
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