System device for preparing sulphonate surfactant through supergravity sulfonating method and application

Abstract

The invention discloses a system device for preparing a sulphonate surfactant through a supergravity sulfonation method and application. The system device comprises batching systems, a supergravity reaction system, heat removing systems and a post-processing system. The batching systems comprise the sulfonation agent batching system, the organic solvent for heat removing batching system and the raw material waiting for being sulfonated batching system; the supergravity reaction system comprises a supergravity reactor and a feeding device; the heat removing systems comprise the outer heat removing system and the cold shock heat removing system; and the post-processing system comprises a circulating stirring system, a circulating pump, an overflow aging system, a neutralization system, a water-separating system and a solvent recovery system. The system device is adopted to conduct a sulfonation reaction, diluted gaseous or liquid sulfur trioxide serves as a sulfonating agent, so that the reaction is controllable, and the reaction heat quantity can be removed timely. According to the system device for preparing the sulphonate surfactant through the supergravity sulfonation method, the supergravity technology is applied in the process of sulfonation quick reaction, so that raw materials can be evenly distributed rapidly, the occurrence probability of a side reaction is reduced, and the product quality is improved.

Description

technical field [0001] The invention relates to the field of fine chemical technology. More specifically, it relates to a system device for preparing sulfonate surfactants by a high-gravity sulfonation method and a method for preparing sulfonate surfactants using the same. Background technique [0002] Sulfonation reaction occupies an important position in the field of modern chemical industry, and is an important step in the synthesis of various organic products. It is widely used in industries such as medicine, pesticide, fuel, detergent and petroleum. Sulfonation is one of the important means of preparing sulfonate surfactants. Surfactants refer to substances that can significantly reduce the surface tension of a solution at a very low concentration. They are called "industrial monosodium glutamate". Used in cosmetics, textiles, detergents, paints, pharmaceuticals, food, minerals, and petroleum industries. Sulfonate surfactants are currently the most commonly used surfa...

AI Technical Summary

Problems solved by technology

The structure of this reactor is complex, because the raw materials should be distributed in a uniform film shape, so the tube wall surface is required to be very smooth, and the processing requirements are very high; in addition, the sulfonation rate of the material increases gradually from top to bottom, and the viscosity of the film surface becomes larger and larger during the reaction. At the bottom of the device, the film thickness can reach 2mm, resulting in a great decrease in heat transfer and mass transfer efficiency, and it becomes a frequent area for side reactions and coking

At the same time, due to the overall slowdown of the heat transfer process, the upper and lower ends of the falling film sulfonation reactor need to use cooling water with different flow rates and temperatures, which increases operating costs

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