Production device and method for preparing urea oxidation catalyst by taking egg shell membrane as raw material

Abstract

The production device comprises a working barrel and a working box, the working barrel comprises a drying area with the upper end externally connected with an air source and a dissolving area with hydrochloric acid at the lower end, and a driving rod connected with an external power source is arranged on the working box; and the driving rod drives the working box to vertically move and rotate. The bottom surface of the working box comprises an upper filter plate and a lower filter plate which are mutually stacked, and the lower filter plate is rotationally connected with the upper filter plate. The egg shell membrane can be immediately transferred into the drying area after the egg shell is immersed in hydrochloric acid to be dissolved into the membrane, and the egg shell membrane is dried after the residual hydrochloric acid is recovered through centrifugal spin-drying. The drying area and the dissolving area can be automatically isolated during drying, and the situation that volatilization of hydrochloric acid in the dissolving area is accelerated by drying gas, and the drying effect of egg shell membranes is affected is avoided.

Description

technical field [0001] The invention belongs to the field of catalyst preparation, and specifically relates to a production device and method for preparing a urea oxidation catalyst using egg shell membranes as raw materials. Background technique [0002] Urea is a non-toxic and harmless bulk industrial and agricultural product synthesized from carbon dioxide and ammonia. It has a large domestic production volume and stable sources, and has extremely broad applications. During the use of urea, in order to accelerate the oxidation reaction rate of urea, it is usually necessary to add a catalyst. However, China is a big country in poultry farming in the world, and the amount of waste egg shell membranes is huge, which poses a threat to the ecological environment and is also a waste of resources. Therefore, the use of discarded egg shell membranes as raw materials for the preparation of urea oxidation catalysts has extremely high economic value. In the current process of prep...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a production device and method for preparing a urea oxidation catalyst using egg shell membranes as a raw material, so as to solve the problems of the shortcomings of the prior art in the above-mentioned background technology

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