DMDO crystal decolorizing and drying device

Abstract

The invention particularly relates to a DMDO crystal decolorizing and drying device which comprises a box body and glassware, a controller is arranged on the box body, the interior of the box body is divided into a crystallization area and a drying area, a decolorizing mechanism is arranged on the left side of the top of the box body, a suction filtration mechanism is arranged on the right side of the upper portion of the box body, a cooling mechanism is arranged in the crystallization area, and a drying mechanism is arranged in the drying area. DMDO crystals containing impurities can be decolored and dried, and the detachable stirring barrel is arranged so that the barrel can be conveniently cleaned after being used; the working mode that the stirring fan blades and the stirring barrel rotate at the same time is arranged so that DMDO crystals and petroleum ether can be rapidly mixed and stirred; liquid in the glassware can be quickly cooled in a cold air and water cooling double-cooling manner so that DMDO crystals can be quickly separated out.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, in particular to a DMDO crystal decolorization and drying device. Background technique [0002] Antibiotics are the main drugs people use to treat infectious diseases. However, with the continuous use of antibiotics, the resistance of some bacteria is gradually increasing. Therefore, people need to transform antibiotics to obtain more effective drug varieties. Since the 20th century, the global pharmaceutical industry has developed rapidly, and my country has become the world's largest producer of antibiotics. However, some drugs produced in my country are still old varieties, and the growth rate of production capacity and output is relatively slow. DMDO-Cl is an important intermediate in drug synthesis, and its preparation and application are of great significance to the synthesis and development of new drugs. [0003] Using 4-halomethyl-5-methyl-1,3-dioxol-2-one (DMDO-X, X = Cl, ...

AI Technical Summary

Problems solved by technology

[0004] In the process of preparing DMDO crystals, it needs to be decolorized and dried. At present, when dealing with DMDO crystals containing impurities, it needs to be dissolved first, and the impurities therein are filtered, and then recrystallized and dried; Most of the dissolution methods are adding petroleum ether to DMDO and then manually stirring, or adding high-temperature petroleum ether, the dissolution effect is not obvious, and the efficiency is low

For the cooling crystallization treatment, natural cooling or air cooling is mostly used. Air cooling blowing directly to the solution will bring a large amount of dust into the solution, causing solution pollution; after crystallization, it needs to be filtered, and the conventional suction filtration structure is mostly used. A suction filter extracts the liquid, and the container needs to be replaced from the crystallization to the suction filtration process, which is extremely troublesome

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