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Hydroxy-containing multi-sulfonated ricinoleate and preparation method thereof

A polysulfonated castor and oleate technology, which is applied in the direction of sulfuric acid ester preparation, organic chemistry, petroleum industry, etc., can solve the problems of application limitation, poor lubricity, stability and corrosion resistance, and achieve low cost and good Water solubility and stability, the effect of sufficient source of raw materials

Inactive Publication Date: 2015-05-27
修建东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the continuous strengthening of human environmental awareness and environmental protection legislation, the environmental pollution caused by mineral oil-based lubricant additives has attracted more and more attention. Due to the non-combustible properties of water-based lubricants, the specific heat and thermal conductivity are greater than those of oil, clean, Low price and other advantages, it is continuously developed as a new type of green lubricating additive, and is widely used in the fields of metal processing and hydraulic transmission. It is the development focus of industrial equipment lubrication and process fluids. However, at present, water The base lubricating additive has problems such as poor lubricity, stability and corrosion resistance, and its application is limited

Method used

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  • Hydroxy-containing multi-sulfonated ricinoleate and preparation method thereof
  • Hydroxy-containing multi-sulfonated ricinoleate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In the there-necked flask equipped with stirring device, reflux condensing device and thermometer, add 100 grams of ricinoleic acid, 12 grams of acetic acid and 0.5 gram of cation exchange resin, under the catalysis of 1.2 grams of concentrated sulfuric acid, drop 34.2 grams of hydrogen peroxide, in At a temperature of 60°C to 80°C, carry out epoxidation reaction for 2 to 4 hours to generate epoxidized ricinoleic acid, stop the reaction, put the reaction material in 4 to 5 times the volume of hot water for hydrolysis, separate liquid, and use warm water Wash the product, take the oil layer, and obtain the hydrolyzed product trihydroxyricinoleic acid. The trihydroxyricinoleic acid is placed in a reaction flask in an ice-water bath, and 90 grams of concentrated sulfuric acid is added dropwise, stirred, and the sulfonation reaction is carried out for 1 to 2 hours. Generate hydroxyl-containing polysulfonated ricinoleic acid, and finally neutralize and wash with saturated sod...

Embodiment 2

[0019] In the there-necked flask equipped with stirring device, reflux condensing device and thermometer, add 95 grams of ricinoleic acid, 10 grams of acetic acid and 0.5 grams of cation exchange resin, under the catalysis of 1.1 grams of concentrated sulfuric acid, drop 35.6 grams of hydrogen peroxide, in At a temperature of 60°C to 80°C, carry out epoxidation reaction for 2 to 4 hours to generate epoxidized ricinoleic acid, stop the reaction, put the reaction material in 4 to 5 times the volume of hot water for hydrolysis, separate liquid, and use warm water Wash the product, take the oil layer, and obtain the hydrolyzed product trihydroxyricinoleic acid. The trihydroxyricinoleic acid is placed in a reaction flask in an ice-water bath, and 80 grams of concentrated sulfuric acid is added dropwise, stirred, and the sulfonation reaction is carried out for 1 to 2 hours. Generate hydroxyl-containing polysulfonated ricinoleic acid, and finally neutralize and wash with saturated sod...

Embodiment 3

[0021] In the there-necked flask equipped with stirring device, reflux condensing device and thermometer, add 90 grams of ricinoleic acid, 9 grams of acetic acid and 0.5 gram of cation exchange resin, under the catalysis of 1 gram of concentrated sulfuric acid, drop 35 grams of hydrogen peroxide, and At a temperature of 60°C to 80°C, carry out epoxidation reaction for 2 to 4 hours to generate epoxidized ricinoleic acid, stop the reaction, put the reaction material in 4 to 5 times the volume of hot water for hydrolysis, separate liquid, and use warm water Wash the product, take the oil layer, and obtain the hydrolyzed product trihydroxyricinoleic acid. The trihydroxyricinoleic acid is placed in a reaction flask in an ice-water bath, and 70 grams of concentrated sulfuric acid is added dropwise, stirred, and the sulfonation reaction is carried out for 1 to 2 hours. Generate hydroxyl-containing polysulfonated ricinoleic acid, and finally neutralize and wash with saturated sodium bi...

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Abstract

The invention discloses hydroxy-containing multi-sulfonated ricinoleate and a preparation method thereof. The preparation method is characterized by comprising the steps of carrying out epoxidation reaction on ricinoleic acid and hydrogen peroxide under the catalysis of concentrated sulfuric acid by taking acetic acid and cation exchange resin as active oxygen carriers, hydrolyzing generated products under an acidic condition, carrying out sulfonation reaction on hydrolyzed products and concentrated sulfuric acid in ice-water bath to generate hydroxy-containing multi-sulfonated ricinoleic acid, and finally neutralizing and washing hydroxy-containing multi-sulfonated ricinoleic acid with alkaline liquid, so as to prepare the hydroxy-containing multi-sulfonated ricinoleate. The hydroxy-containing multi-sulfonated ricinoleate is hydroxy-containing multi-sulfonated compound and has relatively good water solubility and stability; by virtue of the property that carboxyl and multi-sulfonic group can be bonded with metal, certain rusting resistance can be achieved; the reaction operation is simple and feasible.

Description

technical field [0001] The invention relates to the technical field of synthesizing lubricating additives for metalworking fluids, in particular to a hydroxyl-containing polysulfonated ricinoleic acid salt and a preparation method thereof. Background technique [0002] Water-based metalworking fluids have been rapidly developed due to their excellent cooling, cleaning, rust resistance, economy and safety, and are widely used in metal processing fields such as cutting, grinding, calendering, stamping and tapping. , Lubricant additives are an important part of water-based metalworking fluids. [0003] With the continuous strengthening of human environmental awareness and environmental protection legislation, the environmental pollution caused by mineral oil-based lubricant additives has attracted more and more attention. Due to the non-combustible properties of water-based lubricants, the specific heat and thermal conductivity are greater than those of oil, clean, Low price a...

Claims

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Application Information

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IPC IPC(8): C07C303/24C07C305/10C10M135/08C10N30/12
Inventor 修建东
Owner 修建东
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