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Preparing process of sclareol

A technology for sclareol and a preparation process is applied in the field of preparation of sclareol, can solve the problems of low product yield, long required time, influence on economic benefits and the like, and achieves high product yield, short operation time, simple craftsmanship

Inactive Publication Date: 2008-12-17
延安汇丰工贸有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Above-mentioned method, though can obtain the sclareol of desired purity, the weak point of this method: the one, use a large amount of solvent and gac, increased production cost; The 2nd, required time is long, and production efficiency is low; Part of the active ingredient is removed, the product yield is low, and the economic benefit is affected

Method used

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  • Preparing process of sclareol
  • Preparing process of sclareol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The first step: put 200 kilograms of Sclareus extract containing 50% of sclareol into the chemical material kettle 1 with a volume of 500 liters after chopping, and then turn on the heater-7 to make the chemical material kettle 1 temperature Gradually raise the temperature to 110°C, and at the same time turn on the water ring vacuum pump SH to make the pressure of the material tank 1 reach 0.08Mpa, and extract the remaining organic solvent and volatile gas in the extract of Clary Perilla, and wait until the extract of Clary Perilla is completely melted into a liquid Phase, keep the heater a 7 constant temperature.

[0023] The second step: import the liquefied Clarisula extract into the preheated storage tank P1 with a volume of 300 liters, turn on the heater 17, and raise the temperature of the storage tank P1 to 140°C; turn on the first level Molecular distiller 3 (its evaporating surface area is 0.8 square meters, and the condensation surface area is 1.2 square meter...

Embodiment 2

[0026]In order to reach the sclareol product with an alcohol content of more than 95%, it is 90% sclareol with the alcohol content obtained by the acetone solvent and embodiment 1 in the present invention, and the sclareol with weight percentage: acetone solvent =1: 3 ratio, successively load into volume and be the airtight crystallization kettle-17 of 500 liters recrystallization. Turn on the heater two 23, under the condition of temperature 40°C-45°C, completely dissolve the sclareol in the crystallization kettle one 17, then import the completely dissolved sclareol into the crystallization kettle two 21 and let it stand still, cool down naturally After 4 hours, turn on the cooler 24 and gradually lower the temperature to -15°C; start the agitator 18 at the same time, the stirring rate is 40rpm, and it takes about 10-12 hours. Cloth filtration, the sclareol after filtering is placed in the static drying of vacuum drying cabinet 14, during drying, the pressure of vacuum dryin...

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Abstract

The invention discloses a preparation technology of sclareol, which adopts a molecular still with a distance of 2cm to 5cm between an evaporating surface and a condensing surface. The technology of the invention is characterized in the operation under the following technological conditions is carried out and comprises the following steps of: operating pressure for the still is 1Pa to 150Pa, distilling temperature is 100 DEG C to 400 DEG C, cooling temperature is minus 8 DEC G to minus 15 DEG C, rotating speed of a film applicator is 10rpm to 300rpm, remains of the first-step distillation are deemed as raw materials for a next distillation and are taken 2 times to 3 times of distillation, temperature contrast between the evaporating surface and the condensing surface is kept as 175 DEG C to 275 DEG C for each time of distillation, so as to completely separate and extract sclareol from clary sage concrete and to ensure the yield of sclareol to reach 98 percent. The technology of the invention has advantages of simple technology, short operating time, nonuse of solvent, nonproduction of other high boiling materials and pollution-free. The technology of the invention has high efficiency on extracting the sclareol, high product yield and high benefit, and is applicable to large-scale production of the sclareol.

Description

technical field [0001] The invention relates to a preparation process of sclareol. Background technique [0002] Sclareol is a good natural raw material for synthetic sclareolactone and synthetic ambrox fragrances. After retrieval, most manufacturers in China use the residue after extracting the essential oil of Claris perilla or directly extract and concentrate with petroleum ether to obtain dark green Clarysus extract. But the sclareol contained in it is only 35-50%, and the variety is very low, so it is difficult to be used in the production of spices. [0003] The production process of sclareol provided by the existing invention is to dissolve the extract of sclareus in ethanol with a concentration of not less than 50%, filter it after freezing at -17°C--20°C, and then add stoichiometric activated carbon, Stir and filter, dilute the filtrate with water to make the concentration below 35%, and stir to precipitate the sclareol crystals, then filter, centrifugally dehydra...

Claims

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Application Information

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IPC IPC(8): C07C35/36C07C29/74
Inventor 罗玉瑾
Owner 延安汇丰工贸有限公司
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