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Alkaline oleate cleaning agent and preparation method thereof

A technology of oleate and detergent, which is applied in the field of lubricating oil, can solve the problems of product discoloration, easy oxidation and deterioration of linoleate, and easy oxidation and fracture of double bonds, etc., and achieves no biological toxicity, excellent high-temperature detergency, and appearance color shallow effect

Inactive Publication Date: 2016-07-06
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN103265995 introduces a calcium linoleate product, but calcium linoleate contains two double bonds, which are easily oxidized and broken at high temperatures, resulting in discoloration of the product and the precipitation of calcium carbonate in the micelles, causing the engine to work The temperature is generally above 260°C. At such a high temperature, linoleate is easily oxidized and deteriorated.

Method used

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  • Alkaline oleate cleaning agent and preparation method thereof
  • Alkaline oleate cleaning agent and preparation method thereof
  • Alkaline oleate cleaning agent and preparation method thereof

Examples

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preparation example Construction

[0038] A preparation method of alkaline oleate detergent, comprising the following steps:

[0039] Step 1: Add organic solvent, alcohol accelerator, calcium hydroxide or calcium oxide and water into a flask equipped with electric stirrer, thermometer and condensation dehydrator, turn on the stirrer, raise the temperature to 30-40°C, and stir evenly Finally, add oleic acid and base oil to carry out neutralization reaction, maintain the reaction temperature at 40-60°C, and maintain the neutralization reaction time for 0.5h-1h;

[0040] Step 2: After the neutralization reaction is completed, pass carbon dioxide gas into the flask at a ventilation rate of 200-250mL / min, carry out a high alkalinity reaction for 2 hours, and maintain the reaction temperature at 40-60°C;

[0041] Step 3: After the high alkalinity reaction is completed, heat the mixture to 110-130°C, remove the alcohol accelerator and water, then cool down to 60-80°C, add the organic solvent used in step 1 to dilute, ...

Embodiment 1

[0057] Add 120mL of straight-run gasoline and 120mL of methanol (industrial product) into a 500mL four-necked flask equipped with an electric stirrer and a condensing dehydrator, start stirring and heat up, then add 32.0g of calcium hydroxide (industrial product) and 10.0g of water, Raise the temperature to 30-40°C, then add 50.0g of tallow oleic acid (industrial product) and 50.0g of HVI150 base oil to carry out neutralization reaction. It can be seen that the reaction system becomes thicker, accompanied by obvious temperature rise. Control the reaction temperature at 45- At 55°C, the neutralization reaction was maintained for 1.0h. After that, carbon dioxide gas was introduced at a certain rate (controlling the ventilation rate to 200-250mL / min) for high alkalinity reaction. The appearance color of the system gradually changed from milky white to light yellow, and the high alkalinity reaction was maintained for about 2.0 hours. After the reaction, Raise the temperature to 11...

Embodiment 2

[0059] Add 120mL of straight-run gasoline and 120mL of methanol (industrial product) into a 500mL four-necked flask equipped with an electric stirrer, a thermometer and a condensation dehydrator, start stirring and raise the temperature, then add 35.0g of calcium hydroxide (industrial product) and 10.0 g of water g, heat up to 30-40°C, then add 50.0g of vegetable oleic acid (industrial product), 50.0g of HVI150 base oil, and carry out neutralization reaction. It can be seen that the reaction system becomes thicker, accompanied by temperature rise, and the reaction temperature is controlled at 45 ~55°C, keep the neutralization reaction for 1.0h. After that, carbon dioxide gas was introduced at a certain rate (controlling the ventilation rate to 200-250mL / min) for high alkalinity reaction. The appearance color of the system gradually changed from milky white to light yellow, and the high alkalinity reaction was maintained for about 2.0 hours. After the reaction, Raise the temper...

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Abstract

A preparation method of an alkaline oleate detergent, comprising the following steps: adding an organic solvent, an alcohol accelerator, calcium hydroxide or calcium oxide and water into a flask, turning on the stirrer, and raising the temperature to 30-40°C, After stirring evenly, add oleic acid and base oil to carry out neutralization reaction, maintain the reaction temperature at 40-60°C, and react for 0.5h-1h; , maintain the reaction temperature at 40-60°C; after the high alkalinity reaction, raise the temperature of the mixture to 110-130°C to remove the alcohol accelerator and water, then cool down to 60-80°C, add an organic solvent to dilute and centrifuge to remove The slag is then distilled under reduced pressure to remove the organic solvent to obtain the product, which is stable at high temperature, has no biological toxicity and has good environmental compatibility, excellent high temperature detergency, good storage stability, abrasion resistance and water separation.

Description

technical field [0001] The invention relates to an oleate metal detergent product and a preparation method thereof, in particular to a high-alkaline oleate metal detergent product and a preparation method thereof, belonging to the field of lubricating oil. Background technique [0002] In recent years, with the worldwide shortage of petroleum resources, rising fuel prices, and increasingly serious environmental damage and pollution, fuel economy and environmental protection have become one of the hot topics. In order to meet the requirements of strict fuel economy indicators and environmental protection regulations, in addition to changing and improving engine design (engine design is increasingly small, high-power, high-speed development) and improving fuel quality, develop low-sulfur, low-phosphorus, Energy-saving and environment-friendly lubricating oil has become the main direction of lubricating oil development. Similarly, new requirements are put forward for lubricati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/02C10M125/10C10M129/40C10N30/04
Inventor 刘玉峰姚文钊刘雨花
Owner PETROCHINA CO LTD
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