Crude aldehyde extraction equipment

Abstract

The invention relates to crude aldehyde extraction equipment. An upper reaction tank is connected with a lower reaction tank by virtue of a tank body, wherein a high pressure water inlet pipe and a discharging hole are arranged on the body of the lower reaction tank and are communicated with the lower reaction tank, a water outlet pipe, a feeding hole and an air pressure balance opening are arranged on the body of the upper reaction tank and are communicated with the upper reaction tank, a discharging quantitative controller is rotationally arranged inside the discharging hole, the tank body is formed by connecting a plurality of sections of cylindrical bodies connected in series, a first filter sieve and a second filter sieve are arranged in the middle of each section of cylindrical bodyin parallel, a distance is kept between the first filter sieve and the second filter sieve, a stirrer is rotationally arranged above the cylindrical body at the upper layer, an opening is formed in the cylindrical body at the lower layer, and is connected with one hollow tube body, and a plurality of small holes are formed in the side wall of the hollow tube body. The crude aldehyde extraction equipment provided by the invention has the advantages that side effects are avoided being produced during neutralization reaction, so that product yield is improved, and the quality of furfural is improved.

Description

technical field [0001] The invention belongs to the technical field of furfural production, and in particular relates to a furfural extraction device. Background technique [0002] my country's furfural industry started in 1943. Since furfural was produced in small batches in Tianjin, so far it has been using the problem-method rectification production process, which has simple equipment and low investment. However, the rectification time is long, the material is heated in the system for a long time, and the product loss is large. The refining yield can only reach 80-85%, and the quality of the product is very unstable. It can only reach the first-grade product standard stipulated by the state. It cannot meet the international market premium product standard, and the distillation speed is slow. Contents of the invention [0003] The object of the present invention is to provide a kind of crude aldehyde extraction equipment. The present invention removes the organic acid ...

AI Technical Summary

Problems solved by technology

However, the rectification time is long, the material is heated in the system for a long time, and the product loss is large. The refining yield can only reach 80-85%, and the quality of the product is very unstable. It can only reach the first-grade product standard stipulated by the state. Unable to meet the international market premium product standards, the distillation speed is slow

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