Novel preparation process of synthetic fatting agent and device

Abstract

The invention relates to a novel preparation process of a synthetic fatting agent and a device, and aims at achieving the effects that according to the provided process, the sulfonation degree of a final product can be automatically controlled, and the provided device can realize the continuous production of products. The preparation process of the novel synthetic fatting agent has the technical scheme that the novel preparation process of the synthetic fatting agent is performed according to the following steps of (1) synthesizing an oleic acid glycol monoester and diester mixture; (2) measuring the density of an esterification product by an automatic control system; (3) continuously inputting an oleic acid glycol ester mixture into a sulfonator for taking a diaphragm type sulfonation reaction; and (4) obtaining a leather fatting agent product, wherein tail gas is absorbed by a tail gas treatment system. A novel production device of the synthetic fatting agent comprises an esterification reactor, an organic material pump, a back pressure valve, a sulfonation reactor and a gas-liquid separator, wherein the esterification reactor is provided with an oleic acid inlet and a glycol inlet; a measuring instrument is also arranged in a connecting pipeline arranged between the organic material pump and the back pressure valve; and a data converter is communicated with the measuring instrument and a raw material pump.

Description

technical field The invention relates to the technical field of leather chemical industry, in particular to a preparation process and device of a novel synthetic leather fatliquoring agent. Background technique In the field of leather chemical industry, ethylene glycol oleate leather fatliquor, as a newly developed synthetic fatliquor in recent years, shows excellent leather fatliquor performance. The study found that the application of oleic acid ethylene glycol ester synthetic fatliquor to the leather after fatliquoring is soft, the board surface is plump and elastic, the finished product is not greasy, and the grain surface and suede of the leather are shiny; Increase the water absorption and improve the waterproof performance of the leather. Therefore, this type of synthetic fatliquoring agent is more and more widely used in the field of leather chemical industry. In order to better reflect the fatliquoring effect of ethylene glycol oleate on leather, chemical modific...

AI Technical Summary

Problems solved by technology

However, this method can only manually control the feed ratio of raw materials, while the molar ratio of monoester and diester in the product is determined by the reaction situation, which cannot be controlled accurately and in time

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