Efficient compound corrosion inhibitor for hydraulic support hydraulic fluid and application of efficient compound corrosion inhibitor

A composite corrosion inhibitor and hydraulic support technology, applied in the directions of additives, lubricating compositions, petroleum industry, etc., can solve the problems of insignificant effect and unstable hydraulic liquid system of hydraulic support, and achieve excellent effect, excellent stability, adding small amount of effect

Active Publication Date: 2015-12-16
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are existing corrosion inhibitors on the market, the effect is not significant, and it can only inhibit the corrosion of a limited number of metals, and it is easy to cause the instability of the hydraulic fluid system of the hydraulic support

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 50% triethanolamine, 10% monoethanolamine, and 20% caprylic acid into the reaction kettle according to the dosage ratio, heat to 95-100°C and stir evenly, then add 9.5% sebacic acid and 9.5% boric acid until the white solid melts completely and has bubbles produced, cooled to 60°C, added 1% benzotriazole and stirred for 60 minutes, stirred evenly and left to stand to obtain the product. Put the product into the hydraulic fluid of the hydraulic support according to the mass percentage of 1.5% and stir evenly to obtain better rust and corrosion resistance. It also has obvious corrosion inhibition performance on galvanized test pieces, which is better than adding ordinary Corrosion inhibitor for hydraulic support hydraulic fluid oil. The test values ​​are as follows:

[0018] project

Ordinary hydraulic fluid test results

Hydraulic fluid test results after addition

Rust resistance (cast iron)

no rust

no rust

Corrosion resistance ...

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PUM

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Abstract

The invention relates to an efficient compound corrosion inhibitor for hydraulic support hydraulic fluid and application of the efficient compound corrosion inhibitor and belongs to the technical field of transmission media for coal mining equipment. The efficient compound corrosion inhibitor is prepared by triethanolamine, ethanolamine, sebacic acid, octanoic acid, boric acid, benzotrizaole and the like under certain temperature and normal pressure. Compared with existing products, the efficient compound corrosion inhibitor has the advantages that the inhibitor is efficient and evident in corrosion inhibiting performance, has a corrosion inhibiting effect on various metal, is good in stability in the hydraulic support hydraulic fluid and has long-term effectiveness.

Description

technical field [0001] The invention relates to a preparation method of a high-efficiency composite corrosion inhibitor used for hydraulic fluid of a hydraulic support, and belongs to the technical field of transmission media for coal mining equipment. Background technique [0002] As the main equipment for comprehensive mechanized coal mining, hydraulic support can provide operators with a safe working space and an effective power source for mining and transportation equipment. It is the key equipment for safe and efficient production in fully mechanized coal mining face. The support, lifting, moving, pushing and overload protection of the hydraulic support are all realized by the hydraulic support hydraulic fluid. As the "blood" of the hydraulic support system, its product performance is particularly important. At present, domestic coal mine hydraulic support hydraulic fluid is usually processed from base oil supplemented with a variety of functional additives, and its lub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/06C10M177/00C10N30/12
Inventor 翟晶王玉超王继勇侯建涛孔令坡赵昕楠白飞飞
Owner CCTEG CHINA COAL RES INST
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