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Technology of extracting triacontanol from natural beeswax by microwave and solid superalkali catalysis

A solid super alkali and natural beeswax technology, applied in the chemical industry, can solve the problems of long time consumption, pollution of alkaline wastewater, organic matter discharge, etc., and achieve the effect of shortening the time

Inactive Publication Date: 2016-08-24
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for extracting triacontanol from natural beeswax by microwave and solid super alkali catalysis to solve the problems of long time consumption, pollution of alkaline wastewater, and discharge of some organic matter as wastewater in the current process. craft

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  • Technology of extracting triacontanol from natural beeswax by microwave and solid superalkali catalysis

Examples

Experimental program
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Effect test

Embodiment 1

[0024] refer to figure 1 , the microwave of the present invention, solid superalkali catalyzed method extract the technology of triacontanol from natural beeswax, comprise the steps:

[0025] 1. Measure 25ml of methanol into a 100ml quartz round bottom flask, mix 0.5g of beeswax with 0.15g of catalyst KF / γ-Al 2 o 3 Add them together, and heat under reflux for 10 minutes under the condition of 200 to 300W microwave power.

[0026] 2. After the reaction, the mixed solution containing triacontanol, methyl oleate, methanol and catalyst is taken out from the round bottom flask, and the solid super base is recovered by filtration.

[0027] 3. The filtered mixture was distilled under reduced pressure with a rotary evaporator to recover methanol, and the set temperature was 50°C.

[0028] 4. The residue after recovering methanol is purified by recrystallization method with ethyl acetate as solvent, the yield is 50-60%, and the content of triacontanol is determined by gas chromatogr...

Embodiment 2

[0030] With reference to Example 1, the enlarged test of the process of extracting triacontanol from natural beeswax by microwave and solid super base catalysis method of the present invention comprises the following steps:

[0031] 1. Measure 12.5 liters of methanol in a microwave reactor container of 30 liters, mix 0.25 kg of beeswax with 0.075 kg of catalyst KF / γ-Al 2 o 3 Add them together, and heat under reflux for 30min under the condition of 6 to 9kw microwave power.

[0032] 2. After the reaction, the mixed solution containing triacontanol, methyl oleate, methanol and catalyst is discharged from the microwave reactor container, and the solid superbase is recovered by filtration.

[0033] 3. The filtered mixture is distilled under reduced pressure with a 50-liter concentrator to recover methanol, the vacuum pressure is controlled at 0.06 to 0.08Mp, and the temperature is controlled below 50°C.

[0034] 4. The residue after recovering methanol is purified by recrystalli...

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Abstract

The invention discloses a process for extracting triacontanol from natural beeswax by microwave and solid superalkali catalysis. Firstly, a certain quality of natural beeswax is placed in a container, and methanol is added at a solid-to-liquid ratio of 1:50. Then add KF / γ‑Al in an amount of 30% of the natural beeswax quality 2 o 3 Solid strong alkaline agent, the reaction of several grams of natural beeswax is heated to reflux for 10 minutes under the microwave power of 200-300W, and the reaction of kilograms of natural beeswax is refluxed and heated for 30 minutes under the microwave power of 6 to 9kw, and it is carried out under microwave catalysis Transesterification reaction to obtain a mixture of triacontanol+methanol+methyl oleate+catalyst; filter to recover KF / γ‑Al 2 o 3 Solid strong base agent, to obtain triacontanol+methanol+methyl oleate mixture; then rotary evaporation, recovery of methanol, to obtain triacontanol+methyl oleate mixture; and then recrystallization to obtain triacontanol . Compared with traditional catalysts such as sodium hydroxide and potassium hydroxide under microwave conditions, the present invention forms a high-efficiency, environment-friendly and low-cost production process for preparing triacontanol using natural beeswax as raw material.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a process for extracting triacontanol from natural beeswax by microwave and solid superalkali catalysis. Background technique [0002] Triacontanol (1-Triacontanol) is a long-chain fatty alcohol composed of 30 carbon atoms. Its chemical name is triacontanol-1 or n-triacontanol, referred to as triacontanol or TRIA, also known as meliflora alcohol , its chemical formula is: CH 3 (CH 2 ) 28 CH 2 OH; in nature, TRIA often exists in various waxes in the form of esters combined with higher fatty acids, but also exists in free form. Studies have shown that triacontanol is a broad-spectrum, high-efficiency new animal and plant growth regulator that is harmless to humans and animals and has no pollution to the environment. Its main effects are as follows: for animals, it can improve absorption function, enhance metabolism, enhance the body's disease resistance, and increase egg and m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C31/02C07C29/128
CPCY02P20/584
Inventor 苏小建何星基周佳
Owner GUANGXI NORMAL UNIV
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