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Non-barium metal rust preventive oil of compound containing rare earth cerium

A metal anti-rust and compound technology, which is applied in the direction of lubricating compositions, petroleum industry, additives, etc., can solve the problems of personal safety hazards, environmental pollution, etc., and achieve the effect of outstanding anti-rust performance in damp heat

Active Publication Date: 2011-06-22
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil-soluble organic barium compound itself is non-toxic, but if it is scattered in the natural environment, it will decompose into a water-soluble toxic barium compound, causing harm to personal safety and polluting the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Preparation of oil-soluble organic sulfonate cerium compound: take 0.4 mole of dodecylbenzenesulfonic acid, add 0.4 mole of sodium hydroxide aqueous solution, stir at 60°C for 1 hour, then add 0.1 mole of cerium chloride aqueous solution, and react at 80°C for 2 hours , separated and removed the water phase to obtain an oil-soluble rare earth cerium compound with a cerium content of 4.3%.

[0015] The formula (weight ratio) of anti-rust oil is: organic sulfonate cerium 5%, dodecenyl succinic acid 3%, behenitol ester 5%, benzotriazole 0.1%, 150SN mineral oil 86.9%, Anti-rust oil is obtained after blending.

Embodiment 2

[0017] According to the method for preparing an oil-soluble rare earth cerium compound in Example 1, nonalkylbenzenesulfonic acid was used to react to obtain cerium organic sulfonate, and the cerium content was 5.0%.

[0018] The formula (weight ratio) of anti-rust oil is: organic sulfonate cerium 5%, dodecenyl succinic acid 3%, behenitol ester 5%, benzotriazole 0.1%, 150SN mineral oil 86.9%, Anti-rust oil is obtained after blending.

Embodiment 3

[0020] According to the method for preparing the oil-soluble rare earth cerium compound in Example 1, tetradecylsulfonic acid was used to react to obtain cerium organic sulfonate, and the cerium content was 3.1%.

[0021] The formula (weight ratio) of anti-rust oil is: organic sulfonate cerium 5%, dodecenyl succinic acid 3%, behenitol ester 5%, benzotriazole 0.1%, 150SN mineral oil 86.9%, Anti-rust oil is obtained after blending.

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PUM

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Abstract

The invention relates to a non-barium metal rust preventive oil of an oil-soluble rare earth compound. The metal rust preventive oil comprises the following components by weight percent: 1-10% of oil-soluble rare earth cerium compound, 1-5% of organic acid, 1-5% of sorbitan ester and 0.1-2% of benzotriazole. Compared with the rust preventive oil system using barium petroleum sulfonate additive, the rust preventive oil system of the oil-soluble rare earth compound has good rust resistance and outstanding damp and hot resistant property, does not contain organic barium compound and meets the environmental protection requirement that the rust preventive oil does not contain barium; and when the total dosage of the rust resistant additive is within 10%, the rust preventive oil blended in mineral oil can resist rust under a humid and hot environment for more than 60 days.

Description

technical field [0001] The invention relates to a metal antirust oil, in particular to a barium-free high-performance metal antirust oil containing an oil-soluble rare earth cerium compound additive. Background technique [0002] At present, the anti-rust additives in metal anti-rust oil are still mainly composed of organic barium compounds. Barium and its compounds are toxic substances. The toxicity level is related to its solubility. Fasciculation and convulsions, respiratory muscle paralysis and ECG changes, chronic toxicity can cause respiratory tract and conjunctival irritation, chronic interstitial pneumonia, etc., and its immunotoxicity mainly kills immune cells and inhibits cell proliferation. The oil-soluble organic barium compound itself is non-toxic, but if it is scattered in the natural environment, it will decompose into water-soluble toxic barium compounds, causing harm to personal safety and polluting the environment. With the increasing awareness of environm...

Claims

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Application Information

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IPC IPC(8): C10M141/08C10M141/06C10M135/10C10M129/38C10N30/12
Inventor 连玉双张东恒孙东刘毅飞于军
Owner PETROCHINA CO LTD
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