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Anti-rust oil and preparation method thereof

A technology of anti-rust oil and anti-rust additives, applied in the petroleum industry, additives, lubricating compositions, etc., can solve the problems of short anti-rust time, poor anti-rust performance of anti-rust oil, etc., to reduce water content and prolong service life , the effect of improving the performance

Active Publication Date: 2013-04-03
常熟华新特殊钢有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the technical problem that the existing antirust oil has poor antirust performance and short antirust time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment 1 is used to illustrate the preparation method of antirust oil of the present invention, is used for preparing fingerprint removal type antirust oil, specifically comprises the following steps:

[0046] Step 1. Prepare commercially available montmorillonite into an aqueous suspension with a mass fraction of 10%, stir at 90°C for 0.5h, and then add Gemini surfactant, sodium pyrophosphate and fluoride according to its cation exchange capacity The mixed solution of sodium was stirred at constant temperature for 3 hours, cooled to room temperature, filtered with suction, washed with deionized water, dried, and ground to obtain modified montmorillonite;

[0047] Step 2. Add activated carbon to 92g of ordinary machine oil (L-AN 32) (dry the activated carbon at 120°C for 6 hours, the amount of activated carbon added is 2wt% of the mass of the base oil) and the Mongolian oil obtained through the above-mentioned modification treatment Desoiling (the montmorilloni...

Embodiment 2

[0051] This example 2 is used to illustrate the preparation method of the antirust oil of the present invention, and is used to prepare fingerprint removal type antirust oil. The difference from Example 1 is that the base oil is treated with commercially available montmorillonite. Specifically include the following steps:

[0052] Step 1. Add activated carbon (activated carbon is dried at 120°C for 6 hours, and the amount of activated carbon added is 3wt% of the base oil mass) and montmorillonite (commercially available montmorillonite) in 92g of ordinary machine oil (L-AN 32) soil, the montmorillonite was dried at 220°C for 24h, the amount of montmorillonite added was 5wt% of the base oil mass), heated to 70°C, kept stirring and maintaining the temperature for 6h;

[0053] Step 2, get an equal amount of barium petroleum sulfonate, sodium petroleum sulfonate, benzotriazole, a total of 5g as antirust additive; get 2g 2,6-di-tert-butyl p-cresol as antioxidant additive; take 0 ....

Embodiment 3

[0056] This example 3 is used to illustrate the preparation method of the anti-rust oil of the present invention, which is used to prepare the fingerprint removal type anti-rust oil. The difference between it and Example 1 is that the base oil is not treated with activated carbon, which specifically includes the following step:

[0057] Step 1. Prepare commercially available montmorillonite into an aqueous suspension with a mass fraction of 10%, stir at 90°C for 0.5h, and then add Gemini surfactant, sodium pyrophosphate and fluoride according to its cation exchange capacity The mixed solution of sodium was stirred at constant temperature for 3 hours, cooled to room temperature, filtered with suction, washed with deionized water, dried, and ground to obtain modified montmorillonite;

[0058] Step 2. Add the montmorillonite obtained through the above-mentioned modification treatment into 92g of ordinary machine oil (L-AN 32) (the montmorillonite is dried at 220°C for 24 hours, a...

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Abstract

The invention provides a preparation method of anti-rust oil. The preparation method comprises the following steps of: firstly, adding montmorillonite into base oil, heating and stirring the montmorillonite and the base oil, so as to enable the montmorillonite to absorb water in the base oil, and then performing vacuum filtration to remove the montmorillonite; and secondly, adding an additive into the base oil treated by the step I, heating and stirring the additive till the additive is completely dissolved, and then cooling down so as to obtain the anti-rust oil. The invention also provides anti-rust oil obtained through the preparation method. According to the preparation method, the montmorillonite is added into the base oil, so as to enable the montmorillonite to absorb water in the base oil, and then vacuum filtration is performed so as to remove the montmorillonite; and by absorbing water in the base oil through the montmorillonite, the water content of the anti-rust oil is reduced, the service life of the anti-rust oil is prolonged, the anti-rust effect of the anti-rust oil is good, and the usability of the anti-rust oil is greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of antirust oil, and more specifically, relates to an antirust oil and a preparation method thereof. Background technique [0002] Metal is the most important structural material in modern machinery industry, national defense industry, petrochemical industry and other departments, but metal is easily corroded and damaged by chemical and electrochemical effects of pollutants in the external environment. The value is greatly damaged, and even major failures may be caused to scrap the equipment, causing serious economic losses. In order to avoid corrosion, people have adopted a variety of techniques and methods to prevent the occurrence of metal corrosion. Among them, using anti-rust oil to protect metal products is one of the most commonly used protection methods at present. According to the standard SH / T 0692-2000, anti-rust oil is divided into fingerprint removal type anti-rust oil, solvent-diluted soft fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/10C10M141/08C10M141/06C10M141/02C10M177/00C10N30/12
Inventor 王玮李梅
Owner 常熟华新特殊钢有限公司
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