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
CN104649936AInactive Publication Date: 2015-05-27修建东
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
修建东
Publication Date
2015-05-27
Estimated Expiration
Not applicable · inactive patent

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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.
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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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