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Antirust agent composition

A technology of composition and anti-rust agent, which is applied in lubricating composition and petroleum industry, etc. It can solve the problems of poor anti-emulsification ability and high surface activity, and achieve the effect of excellent anti-rust performance, low acid value and good oil solubility

Inactive Publication Date: 2020-08-25
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As can be seen from the above patents, the gemini imidazolines involved in the reported antirust compositions are all gemini imidazoline quaternary ammonium salts. This type of gemini imidazoline quaternary ammonium salts has high surface activity and poor emulsification resistance. The formed rust inhibitor composition is mainly used for aqueous emulsion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Add the following mass percentage components into a beaker, stir thoroughly at 60°C for 1-3 hours, and prepare a rust inhibitor composition.

[0062] Base Oil HVI H2 15%

[0063] Dodecenylsuccinic Acid 70%

[0064] Heptadecenyl Gemini Imidazoline 15%

[0065] The antirust composition prepared in Example 1 was subjected to a performance test, and the results are shown in Table 1. It can be seen from the table that when dodecenylsuccinic acid is added to HVI H2 with a dosage of 0.08%, the liquid phase corrosion is light rust. At the same time, the anti-emulsification ability test showed that the emulsion was not completely separated after standing for more than 30 minutes, indicating that the anti-emulsification ability of dodecenylsuccinic acid is poor. And after dodecenyl succinic acid and heptadecenyl gemini imidazoline form the antirust composition, with 0.08% dosing amount transferred into HVI H2 when, the liquid phase rust is no rust, and its emulsion leaves stan...

Embodiment 2

[0071] Add the following mass percentage components into a beaker, stir thoroughly at 60°C for 1-3 hours, and prepare a rust inhibitor composition.

[0072] Base oil HVI 150 20%

[0073] Ricinoleic Acid 60%

[0074] Geminid imidazoline laurate 20%

[0075] The antirust composition prepared in Example 2 was tested for performance, and the results are shown in Table 2. As can be seen from the table, similar to Example 1, when ricinoleic acid is transferred into HVI 150 with a dosage of 0.08%, the liquid phase corrosion is medium rust. At the same time, the anti-emulsification ability test showed that the emulsion was not completely separated after standing for more than 30 minutes. After the two form the antirust composition, when the added amount of 0.08% is transferred into HVI 150, the liquid phase corrosion is no rust, and its emulsion can be completely separated after standing for 25 minutes, which shows the antirust ability of ricinoleic acid and anti-emulsification pr...

Embodiment 3

[0081] Add the following mass percentage components into a beaker, stir thoroughly at 60°C for 1-3 hours, and prepare a rust inhibitor composition.

[0082] Base oil MVI 150 25%

[0083] Vegetable Oleic Acid 50%

[0084] Tridecenyl Gemini Imidazoline 25%

[0085] The antirust composition prepared in Example 3 was tested for performance, and the results are shown in Table 3. As can be seen from the table, the antirust ability and anti-emulsification performance of vegetable oleic acid are all weaker than tridecenyl gemini imidazoline, but after the two form an antirust composition, the antirust ability and antiemulsification performance of vegetable oleic acid have been improved.

[0086] Table 3 embodiment 3 gained antirust composition performance test

[0087]

[0088]

[0089] *The liquid phase rust test and anti-emulsification test are all adjusted to MVI 150 base oil with 0.08% dosage for testing.

[0090] It can be seen from Example 3 that the introduction of t...

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Abstract

The invention relates to an antirust agent composition. The antirust agent composition is characterized by being prepared from the following raw materials in percentage by weight: 5-30% of base oil, 30-90% of an organic carboxylic acid antirust agent and 5-40% of a gemini imidazoline derivative shown as a formula (I) which is described in the specification. In the formula (I), R1 and R2 are both selected from C10-C21 straight-chain or branched-chain alkyl groups. The antirust agent composition disclosed by the invention is good in oil solubility, small in dosage, excellent in antirust performance, low in acid value and good in demulsibility, and can be used for blending various types of industrial lubricating oil products and antirust grease.

Description

technical field [0001] The invention relates to an antirust composition and belongs to the technical field of antirust agents. Background technique [0002] Metal corrosion not only causes the loss of metal materials, but also causes greater indirect losses due to the damage of metal components, which is one of the main reasons for production shutdown and environmental pollution. Among various protection methods, corrosion inhibitor technology has good effects and high economic benefits, and has become one of the most important methods in anti-corrosion technology. At present, the most widely used oil-soluble antirust agents are organic carboxylic acid antirust agents, but these antirust agents have high acid value and are not suitable for working conditions requiring low acid value. At the same time, due to the strong molecular polarity, when it is used in the working condition with water, the extraction of water will reduce the content of organic carboxylic acid antirust ...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/12C10N40/25C10N40/08
CPCC10M169/045C10M2203/1025C10M2207/127C10M2215/224C10M2207/126C10M2207/40
Inventor 李团乐王俊明周旭光
Owner PETROCHINA CO LTD
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