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Preparation method of modified nano calcium borate lubricant additive

A lubricating oil additive, calcium borate technology, applied in the direction of additives, borate, nanotechnology, etc., can solve the problems of complex preparation process of nano-calcium borate, inability to remove sodium ion impurities, large product particle size, etc., to prevent wall sticking , Small particle size and uniform distribution

Inactive Publication Date: 2013-10-02
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a modified nano-calcium borate lubricating oil additive, so as to solve the existing problems such as complex preparation process of nano-calcium borate, environmental pollution, large product particle size, and inability to remove sodium ion impurities.

Method used

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  • Preparation method of modified nano calcium borate lubricant additive
  • Preparation method of modified nano calcium borate lubricant additive

Examples

Experimental program
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Effect test

Embodiment 1

[0019] a) Weigh 104.1g boric acid (chemical formula: H 3 BO 3 , molecular weight: 62.0) was added to 350ml of water to obtain a boric acid aqueous solution; 15.7g of calcium oxide (chemical formula: CaO, molecular weight: 56.1) was weighed and added to 50ml of water to obtain a lime milk emulsion;

[0020] b) Transfer boric acid aqueous solution and lime milk emulsion into a hydrothermal reaction kettle, stir and mix to make a mixed solution, then add 1.0g cetyltrimethylammonium bromide (CTAB) surfactant and stir to mix , after reacting at 120°C for 20 minutes, suction filtration, drying, and grinding to obtain white CaB with a particle size of 10-15 nanometers 6 o 10 Powder;

[0021] c) Weigh 1.0g nano-CaB 6 o 10 Add the powder to 100ml of water, then add 30ml of oleic acid, stir ultrasonically at a frequency of 25KHz for 10 minutes, then let it stand to separate the oil phase from the water phase, take the upper oil phase, and dry it to obtain oleic acid-modified nano-C...

Embodiment 2

[0025] a) Weigh 104.1g boric acid (chemical formula: H 3 BO 3 , molecular weight: 62.0) was added to 350ml of water to obtain a boric acid aqueous solution; 15.7g of calcium oxide (chemical formula: CaO, molecular weight: 56.1) was weighed and added to 50ml of water to obtain a lime milk emulsion;

[0026] b) Transfer the boric acid aqueous solution and lime milk emulsion into a hydrothermal reaction kettle, stir and mix well, then add 1.5g of cetyltrimethylammonium bromide (CTAB) surfactant and stir to mix. After reacting for 25 minutes, filter with suction, dry and grind to obtain white CaB with a particle size of 10-15 nanometers. 6 o 10 Powder;

[0027] c) Weigh 1.0g nano-CaB 6 o 10 Add the powder to 80ml of water, then add 24ml of oleic acid, stir ultrasonically at 25KHz for 15min, then let it stand to separate the oil phase from the water phase, take the upper oil phase, and dry it to obtain oleic acid-modified nano-CaB 6 o 10 Lubricant additives.

Embodiment 3

[0029] a) Weigh 104.1g boric acid (chemical formula: H 3 BO 3 , molecular weight: 62.0) was added to 350ml of water to obtain a boric acid aqueous solution; 15.7g of calcium oxide (chemical formula: CaO, molecular weight: 56.1) was weighed and added to 50ml of water to obtain a lime milk emulsion;

[0030] b) Transfer boric acid aqueous solution and lime milk emulsion into a hydrothermal reaction kettle, stir and mix well, then add 0.5g of cetyltrimethylammonium bromide (CTAB) surfactant and stir and mix. After reacting for 30 minutes, filter with suction, dry and grind to obtain white CaB with a particle size of 10-15 nanometers. 6 o 10 Powder;

[0031] c) Weigh 1.0g nano-CaB 6 o 10 Add the powder into 150ml of water, then add 45ml of oleic acid, stir ultrasonically at a frequency of 25KHz for 20min, then let it stand to separate the oil phase from the water phase, take the upper oil phase, and dry it to obtain oleic acid-modified nano-CaB 6 o 10 Lubricant additives. ...

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Abstract

The invention discloses a preparation method of a modified nano calcium borate lubricant additive, which comprises the following steps of: a) weighing boric acid and calcium oxide, adding water respectively to prepare a boric acid aqueous solution and lime milk emulsion, b) stirring and mixing the boric acid aqueous solution and the lime milk emulsion, adding a surfactant, after heating for reaction, performing suction filtration, drying and grinding to obtain nano CaB6O10 powder, c) adding water to the nano CaB6O10 powder, then adding oleic acid, performing ultrasonic stirring, standing to separate an oil phase from a water phase, taking an upper oil phase, drying, and obtaining the oleic acid modified nano CaB6O10 lubricant additive. The additive prepared by the method is high in boron-calcium ratio, and small in particle size, and particle are distributed uniformly (10-15nm). According to the method, a washing technology is removed, and the whole production process from raw materials to the product is environment-friendly and non-pollution, and accords with a green chemical concept.

Description

technical field [0001] The invention relates to a method for preparing a lubricating oil additive, in particular to a method for preparing a modified nano calcium borate lubricating oil additive. Background technique [0002] Lubricating oil is a liquid lubricant used in various types of machinery to reduce friction and protect machinery and processed parts. It mainly plays the roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering. Lubricating oil is generally composed of two parts: base oil and additives: base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil, while additives can make up for and improve the performance of base oil and endow some new properties. An important component of lubricating oil. [0003] Additives can be divided into many categories according to their functions, such as anti-wear agents, oily agents, extreme pressure agents, etc. Traditional additives have been gradually...

Claims

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Application Information

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IPC IPC(8): C01B35/12B82Y30/00C09C1/02C09C3/08C10M125/26
Inventor 丁士文李岩丁宇
Owner HEBEI UNIVERSITY
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