Purification and preparation device of solid sodium methoxide

Abstract

The invention belongs to the technical field of chemical equipment and relates to a purification and preparation device of solid sodium methoxide. After solid sodium hydroxide and methanol are stirred and dissolved, in the precipitation process, a mixed solution needs to be subjected to static precipitation for 7-12 hours, the precipitation process is slow, and mass production of sodium methoxide is not facilitated. The invention just aims to solve the above problem. According to the technical schemes of the invention, the purification and preparation device comprises a precipitation barrel, an inner ring seat is arranged in the precipitation barrel, a plurality of functional tables are fixedly connected to the outer wall of the inner ring seat and are circumferentially distributed at equal intervals, an annular supporting frame is fixedly connected between every two functional tables, a supporting rod is fixedly connected to the outer wall of the lower side of each annular supporting frame, a vibration box is fixedly connected to the other end of each supporting rod, a rectangular groove is formed in the outer wall of one side of each vibration box, and an ultrasonic generator is movably connected to the inner wall of each rectangular groove. The ultrasonic generators are used for driving the precipitation barrel to vibrate at low frequency, so that solids in the precipitation barrel are lowered, the precipitation effect in the precipitation barrel is improved, and the overall time is shortened.

Description

Technical field [0001] The present invention relates to chemical technology equipment, and more particularly relates to apparatus for purifying preparing solid sodium methoxide. Background technique [0002] Sodium methoxide is a dangerous chemical, corrosive, can be pyrophoric, mainly for the pharmaceutical industry, as a condensing agent in organic synthesis, chemical reagents, catalysts and other edible oil processing. [0003] Preparation of sodium methoxide in methanol using solid sodium hydroxide and formulated in a certain proportion, stirred to dissolve, precipitate after clarification to remove solid impurities, the supernatant was pumped dehydration column top of the reaction, methanol vapor was added to refined from the bottom of the column continuous dehydration reaction, the product obtained from the column bottom, an aqueous methanol vapor into the distillation system from the purification column top, return to use of dry methanol. [0004] After the current solid s...

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Problems solved by technology

[0004] At present, after stirring and dissolving solid sodium hydroxide and methanol, during the precipitation process, the mixed solution needs to be left to settle for 7 to 12 hours, and the precipitation process is slow, which is not conducive to the mass production of sodium methoxide

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