Method for preparing multifunctional environmentally-friendly boric acid ester surfactant

A technology of surfactants and borate esters, applied in chemical instruments and methods, additives, transportation and packaging, etc., can solve the problem that borate ester groups are unstable and easy to hydrolyze, the extreme pressure lubrication performance is not strong, and the surface activity of borate esters The agent loses anti-rust, sterilization, extreme pressure lubrication and cleaning effects, etc., to achieve the effect of firm adsorption, excellent anti-friction and anti-wear performance

Inactive Publication Date: 2012-02-08
韶关市广化科技有限公司
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  • Summary
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional borate surfactants have the following problems: First, the borate group is unstable and easy to hydrolyze, resulting in the loss of anti

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Put 80 kg of a mixture of lauric acid 1: stearic acid 1.5, 100 kg of polyol amine compounds and a catalyst in a 200-liter electric reaction kettle, and react at 120-175°C for 3.5 hours to obtain the intermediate alcohol amide body; then mix 160 kg of alcohol amide intermediates synthesized above with 10 kg of boric acid evenly, react at 110-150°C for 1.5 hours, after cooling down, a yellow-brown viscous paste is obtained, the yellow-brown viscous paste The product is a multifunctional environment-friendly borate surfactant product with a yield of 91.2%.

[0027] Determination of boron content in the product: According to SH / T0227-92 standard, the boron content in the product is 0.957%.

[0028] Investigation of the hydrolytic stability of the product: using the open-open observation method, its stability is greater than 1600 hours. Investigation of anti-friction and anti-wear properties of the product: determined according to the test method of GB3142-92, the P of the ...

Embodiment 2

[0030] Put 80 kg of a mixture of lauric acid 1: ricinoleic acid 0.2 in mass ratio, 100 kg of polyol amine compounds and a catalyst in a 200-liter electric reaction kettle, and react at 120-175 °C for 3 hours to obtain the intermediate alcohol amide body; then mix 160 kg of alcohol amide intermediates synthesized above with 10 kg of boric acid evenly, react at 110-150°C for 1.5 hours, after cooling down, a yellow-brown viscous paste is obtained, the yellow-brown viscous paste The product is a multifunctional environment-friendly borate surfactant product with a yield of 90.2%.

[0031] Determination of boron content in the product: According to SH / T0227-92 standard, the boron content in the product is 0.938%. Investigation of the hydrolytic stability of the product: using the open-open observation method, its stability is greater than 1600 hours. Investigation of anti-friction and anti-wear properties of the product: determined according to the test method of GB3142-92, the P ...

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Abstract

The invention relates to a method for preparing a multifunctional environmentally-friendly boric acid ester surfactant. The method comprises the following steps of: mixing high-grade fatty acid with a polyatomic alcohol amine compound in the mass ratio of 1.0:(1.3-2.4), putting the mixture into an electrothermal reaction kettle, and reacting under the action of a catalyst at the temperature of 120-175 DEG C for 2-5 hours to obtain an alcohol amine intermediate; and uniformly mixing the alcohol amine intermediate obtained in the first step with boric acid in the mass ratio of 1.0:(0.04-0.1); reacting at the temperature of 110-150 DEG C for 1-2 hours, and cooling to obtain a multifunctional environmentally-friendly boric acid ester surfactant product. Due to the adoption of a preparation process, organic solvents such as methylbenzene, dimethylbenzene and the like are not taken as water-carrying agents, nitrogen protection is not required in the entire synthesizing process, and waste water, waste gas, pollutants and the like are not discharged in the producing and using processes; and the boric acid ester surfactant is an environmentally-friendly water-based metal working fluid additive.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a multifunctional environment-friendly borate surfactant and a preparation method thereof. Background technique [0002] Surfactants are widely used in water-based metalworking fluids, mainly for emulsification, rust prevention, cleaning and lubrication. Commonly used are anionic and nonionic surfactants, such as polyethylene glycol dioleate, alkylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, oleic acid triethanolamine, Span, Tween, petroleum Sulfonate, alkylbenzene sulfonate, etc. The role of this type of surfactant in water-based machining fluids is relatively simple, and it needs to be compounded with a variety of surfactants to achieve emulsification, rust prevention, cleaning and lubrication, which causes difficulties in the development of metalworking fluids and increases product quality. the cost of. [0003] As a new type of...

Claims

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Application Information

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IPC IPC(8): B01F17/22C10M139/00C10N40/20C09K23/22
Inventor 杨长岭
Owner 韶关市广化科技有限公司
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