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Hydraulic bracket concentrated solution with excellent freeze-thaw stability and preparation method thereof

A freeze-thaw stability, hydraulic support technology, used in lubricating compositions, petroleum industry and other directions, can solve the problems of incomplete reduction, slow reduction, pouring out, etc., to reduce corrosion speed, prevent corrosion, and simple preparation process. Effect

Active Publication Date: 2021-06-29
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in actual field application, if extreme weather is encountered, after the concentrate has gone through multiple freeze-thaw cycles, when the temperature returns to above the freezing point of the concentrate and below the freeze-thaw reduction temperature specified in MT76-2011, reduction will occur. The speed is slow or even incomplete, and it is in the form of jelly-like micelles, which cannot be poured out of the bucket, which brings inconvenience to actual use
[0005] At present, there is no mature production technology and related products to enhance the freeze-thaw stability of concentrates in China, which limits the use of water-based concentrates in Inner Mongolia and Xinjiang. Therefore, it is necessary to study special additives in related fields

Method used

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  • Hydraulic bracket concentrated solution with excellent freeze-thaw stability and preparation method thereof
  • Hydraulic bracket concentrated solution with excellent freeze-thaw stability and preparation method thereof
  • Hydraulic bracket concentrated solution with excellent freeze-thaw stability and preparation method thereof

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preparation example Construction

[0042] The preparation method of the hydraulic support concentrate with excellent freeze-thaw stability according to the embodiment of the present invention, which includes the following steps:

[0043] a. Put fatty acid acyl sarcosine and organic base in a molar ratio of 1:1.1-2.5 in a container with mechanical stirring, stir evenly and heat up to 70-110°C, react for 1.0-3.0h to obtain fatty acid acyl sarcosine Salt anionic surfactants;

[0044] b. Put the fatty acyl glutamic acid and the organic base in a molar ratio of 1:2.1-3.4 in a container with mechanical stirring, stir evenly and then heat up to 110-150°C, and react for 3.0-4.5 hours to obtain the fatty acyl glutamic acid Amino acid salt anionic surfactant;

[0045] c, mixing the fatty acid acyl sarcosinate anionic surfactant and the fatty acid acyl glutamate anionic surfactant in the steps a and b evenly to obtain a composite freeze-thaw stabilizer;

[0046] d. Add the water softener to the water, start mechanical s...

Embodiment 1

[0049] A hydraulic support concentrate with excellent freeze-thaw stability, its components and mass percentages are:

[0050]

[0051]

[0052] Wherein, the composite freeze-thaw stabilizer is composed of lauroyl sarcosine triethanolamine surfactant and cocoyl glutamic acid triethanolamine surfactant in a mass ratio of 82:18.

[0053] Wherein, the composite lubricant is formed by compounding sulfonated castor oil and triethanolamine oleate in a mass ratio of 2:1.

[0054] Wherein, the emulsifier is fatty alcohol polyoxyethylene ether.

[0055] Wherein, the anti-rust antiseptic is composed of diethanolamine sebacate, sodium benzoate and benzotriazole in a mass ratio of 15:6:1.

[0056] Wherein, the defoamer is polyoxyethylene polyoxypropylene pentaerythritol ether.

[0057] Wherein, the water softener is EDTA-2Na.

[0058] Wherein, described water is tap water.

[0059] The preparation method of the hydraulic support concentrate in this embodiment is as follows: put ...

Embodiment 2

[0064] 1. A hydraulic support concentrate with excellent freeze-thaw stability, its components and mass percentages are:

[0065]

[0066]

[0067] Wherein, the composite freeze-thaw stabilizer is composed of lauroyl sarcosine triethanolamine surfactant and cocoyl glutamic acid triethanolamine surfactant in a mass ratio of 76:24.

[0068] Wherein, the composite lubricant is formed by compounding sulfonated castor oil and triethanolamine oleate in a mass ratio of 2:1.

[0069] Wherein, the emulsifier is fatty alcohol polyoxyethylene ether.

[0070] Wherein, the anti-rust and anti-corrosion agent is composed of diethanolamine sebacate, sodium benzoate and benzotriazole in a mass ratio of 15:7:1.

[0071] Wherein, the defoamer is emulsified silicone oil.

[0072] Wherein, the water softener is EDTA-2Na.

[0073] Wherein, described water is tap water.

[0074] The preparation method of the hydraulic support concentrate in this embodiment is as follows: put lauroyl sarcos...

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Abstract

The invention discloses a hydraulic bracket concentrated solution with excellent freeze-thaw stability. The hydraulic bracket concentrated solution is prepared from, by mass, 3-9% of a composite freeze-thaw stabilizer, 11-20% of a composite lubricant, 3-7% of an emulsifier, 9-17% of an anti-rust preservative, 6-11% of a water softener, 0.4-1.0% of a defoaming agent and 43-56% of water. According to the invention, the coal mine hydraulic bracket concentrated solution has excellent freeze-thaw stability and wide application range, can be normally used in winter in northwest regions, reduces the storage and turnover cost of the concentrated solution, shortens the time for descending into a well in advance, avoids occupying the limited underground space, has good anti-rust, anti-corrosion and biodegradable performance, can prolong the service life of the hydraulic bracket, and relieves pollution of concentrated solution to underground water.

Description

technical field [0001] The invention belongs to the field of liquid for hydraulic supports, and in particular relates to a concentrated liquid for hydraulic supports with excellent freeze-thaw stability and a preparation method thereof. Background technique [0002] Concentrates for hydraulic supports are O / W nanoemulsions composed of water-soluble or hydrophilic rust inhibitors, lubricants, emulsifiers, preservatives and other additives and water. Since they do not contain base oil, they can effectively avoid emulsified oil The problem of oil separation has been widely used in major coal mines. [0003] In actual field application, the concentrate will experience large temperature changes from production to the field, especially in winter, in areas with large temperature differences between day and night in North China and Northwest China. Therefore, the coal industry standard MT76-2011 puts forward clear requirements on the freeze-thaw performance of the concentrate. The ...

Claims

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Application Information

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IPC IPC(8): C10M173/00C10M177/00C10N30/08C10N30/12C10N30/04C10N40/08
CPCC10M173/00C10M177/00C10M2215/08C10M2215/042C10M2215/04C10M2215/223C10M2209/104C10M2209/105C10M2209/108C10M2207/127C10M2207/141C10M2207/126C10M2219/044C10M2229/02
Inventor 杭智军孙刚王玉超翟晶于维雨谢恩情刘鲤粽沈栋孔令坡白飞飞李硕林赵昕楠王继勇叶雷王岩磊刘雪巍
Owner CCTEG CHINA COAL RES INST