Method and equipment for preparing borneol flakes

Abstract

The invention discloses a method and equipment for preparing borneol flakes. The method comprises the following steps of: putting stems and leaves of Blumea balsamifera into a multi-functional extracting tank and performing steam distillation for 3 to 4 hours to obtain crudely-extracted Blumea balsamifera powder, performing centrifugal separation by using a solid-liquid centrifuge, and thus obtaining finely-extracted Blumea balsamifera powder; putting the finely-extracted Blumea balsamifera powder into a rectifying still and rectifying to obtain primary borneol flake crystals, putting the primary borneol flake crystals and petroleum ether into a reaction kettle and fully stirring until the primary borneol flake crystals are completely dissolved; and finally, performing cooling crystallization, filtering to remove the petroleum ether after colorless flaky crystals are precipitated, air-drying the colorless flaky crystals, and thus obtaining high-purity borneol flakes of which the content of L-borneol reaches 98 percent. By the embodiment of the invention, the content of the L-borneol in the borneol flakes can be improved, and the ability of comprehensively utilizing the Blumea balsamifera can be improved, so that the production cost for the borneol flakes is reduced, and the production efficiency of the borneol flakes is improved.

Description

technical field [0001] The invention relates to the field of pharmaceutical processing, in particular to a method and equipment for preparing moxa tablets. Background technique [0002] Borneol, also known as borneol or dipterocarp, is a white or off-white translucent flaky crystal. It tastes bitter, pungent and cool, and has a delicate smell. It has medicinal effects such as clearing away heat and detoxification, reducing inflammation and pain, and rejuvenating the mind. Therefore, it is not only a high-grade spice, but also a valuable medicinal material. At present, existing borneol can be divided into two types of synthetic borneol and natural borneol, and natural borneol can be divided into natural left-handed borneol and natural dextral borneol; synthetic borneol is made through a series of complicated chemical reactions. The use value is far less than that of natural borneol; natural dextroborneol, also known as dextroborneol, is a natural substance extracted from dip...

AI Technical Summary

Problems solved by technology

Ainaxiang is widely distributed in my country and has abundant output, so the natural L-borneol (i.e. ai tablet) using it as raw material will not have the problem of raw material shortage; however, due to the backwardness of production equipment and production technology for a long time, in The content of L-borneol in the moxa tablets extracted from Xiangshui is very low, and the comprehensive utilization ability of Ainaxiang is not high, which leads to high production cost and low production efficiency

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