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A kind of green extraction process of lacquer wax

An extraction process and paint wax technology, applied in the field of natural product extraction process, can solve the problems of high cost, unsuitable for large-scale industrial extraction production and the like, and achieve the effects of low cost, low harm and high yield

Active Publication Date: 2018-06-19
SICHUAN LINGDUN ECOLOGICAL AGRI TECHDEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the whole process is a physical extraction method, the yield is only 40-45%, the cost is high, and it is not suitable for large-scale industrial extraction production

Method used

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  • A kind of green extraction process of lacquer wax
  • A kind of green extraction process of lacquer wax
  • A kind of green extraction process of lacquer wax

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. Processing of raw materials: screen the collected lacquer seeds to get full particles, remove impurities in the granules, and dry the lacquer seeds from which impurities have been screened out at 50°C for about two hours; dry the dried lacquer seeds through Grinding to obtain the lacquer skin, pulp and lacquer seed core, separating the lacquer seed skin and pulp from the lacquer seed core with a fan, and pulverizing the separated lacquer skin and pulp respectively;

[0045]2. Weigh 40g of the crushed patent leather and pulp into a round bottom flask, add 200ml of dimethyl carbonate, then add 0.4g of calcium oxide powder, condense and reflux at 92~93°C for 2 hours, collect the extract, and repeat the extraction Step 1, combine the 2 extracted solutions to obtain about 386ml extract;

[0046] 3. Weigh 80g of 100~200 mesh pharmaceutical grade silica gel, and wet install it on the insulation chromatography column. The column temperature is controlled at 35~40℃, so that t...

Embodiment 2

[0050] 1. Processing of raw materials: Screen the collected lacquer seeds to get full granules, remove impurities in the granules, and dry the lacquer seeds from which impurities have been screened out at 30°C for about 2.5 hours; dry the dried lacquer seeds through Grinding to obtain the lacquer skin, pulp and lacquer seed core, separating the lacquer seed skin and pulp from the lacquer seed core with a fan, and pulverizing the separated lacquer skin and pulp respectively;

[0051] 2. Weigh 80g of the crushed patent leather and pulp into a round bottom flask, add 400ml of dimethyl carbonate, condense and reflux at 93~95℃ for 2.5 hours, add 0.5g of calcium oxide powder first during the condensing and reflux period, and take an interval of 1 hour Then add 0.4g of calcium oxide powder, collect the extract, repeat the extraction step once, and mix the two extracted solutions to obtain about 780ml of extract;

[0052] 3. Weigh 160g of 100~200 mesh pharmaceutical grade silica gel, ...

Embodiment 3

[0056] 1. Raw material processing: Bake the plucked lacquer seeds in a large oven at 50-60°C for 2 hours, then crush them with a large pulverizer, separate them with a fan, and get the skin and flesh for extraction ;

[0057] 2. Extraction: Put the obtained lacquer seed skin and pulp into an extraction tank with 800Kg as a tank, add 6 square meters of dimethyl carbonate extractant and 8Kg of small particles of calcium oxide, and condense and reflux at 93~95°C After 1 hour, collect the extract, repeat the above extraction step once, and combine the extract;

[0058] 3. Separation and purification: The extraction liquid passes through the column using simulated moving bed separation technology. The chromatographic columns in the simulated moving bed are all equipped with heat preservation, and the temperature is controlled at 45°C. Observe the separation situation, when the bottom of the chromatographic column is yellow, change the column for separation, circulate through the c...

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Abstract

The invention relates to a natural product extraction process, that is, a green extraction process of lacquer wax. The invention uses dimethyl carbonate as the extraction agent, and undergoes the steps of baking, denuclearization, extraction, chromatography, elution, collection, and finished product. The lacquer wax in lacquer seeds is extracted. The invention has a high extraction rate of lacquer wax, can extract more than 95% of the lacquer wax in the patent leather, and the extraction yield is more than 75% and can be recycled. Therefore, the present invention uses dimethyl carbonate as a green extractant, It is a green and efficient extraction process route.

Description

technical field [0001] The invention relates to a natural product extraction process, that is, an environmentally friendly and green method for extracting lacquer wax from sumac seeds. Background technique [0002] China is very rich in lacquer seeds, most of which are distributed in poor mountainous areas in the west, among which Shaanxi, Chongqing, Guizhou, Sichuan, Hubei, Yunnan and other places have the most abundant resources; there are also many types of lacquer trees, and there are about 100 million lacquer trees that can produce lacquer seeds There are many plants, and the annual output of lacquer seeds is about 1.5 million tons. [0003] Moreover, the fruit of the lacquer tree, the lacquer seed, is a biomass with high economic value, rich in oil, and the crude fat content reaches 45-55%. The size of lacquer seeds is similar to that of soybeans, and they are harvested in September-October every autumn. The lacquer seeds are divided into 3 layers, the exocarp layer ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/04C11B1/10
Inventor 吴久容邓朝阳王敏万兵王健
Owner SICHUAN LINGDUN ECOLOGICAL AGRI TECHDEV
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