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Method for preparing high-quality fine lacquer wax product

A high-quality, lacquered wax technology, applied in the recovery/refining of fatty substances, recovery of fatty substances, recycling technology, etc., can solve problems such as low melting point and easy rancidity

Active Publication Date: 2012-01-25
NANJING ZHONGSEN BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for high-quality lacquer wax fine products to solve the problems of low melting point and easy rancidity caused by high unsaturated fatty acid content in lacquer wax. Wood wax is closer to promote the export and refined utilization of lacquer wax, etc.

Method used

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  • Method for preparing high-quality fine lacquer wax product
  • Method for preparing high-quality fine lacquer wax product
  • Method for preparing high-quality fine lacquer wax product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The preparation of embodiment 1 high-quality lacquer wax fine product

[0059] The first step: pretreatment of raw materials

[0060] Before use, the lacquer seeds are dried by microwave, the microwave power is 100-800W, preferably 200-400W, and the microwave irradiation is 30-300s, preferably 60-200s; the lacquer seeds are crushed with a blade crusher or a mill, and passed through a sieve of more than 20 mesh , remove the upper seed core, and sieve out the pulp part of the lacquer seeds, wherein the water content is lower than 6%, and the oil content is higher than 45%;

[0061] The second step: the preparation of crude lacquer wax

[0062] The lacquer seed powder that adopts non-polar solvent leaching drying, non-polar solvent is sherwood oil (60~120 ℃), No. 6 solvent naphtha, one in ether, normal hexane, pentane etc., preferably sherwood oil (60 ~120℃), No. 6 solvent oil and n-hexane. The volume ratio of the mass of the lacquer pulp part to the extraction solvent ...

Embodiment 2

[0077] Step 1: Preparation of Crude Lacquer Wax

[0078] Put 500g of lacquer seeds into a 400W microwave oven and irradiate them with microwaves for 180s, cool down, then irradiate them with microwaves for 30s, cool them down, crush the lacquer seeds with a blade crusher or mill, and remove the upper layer of seeds through a sieve above 20 meshes. Sieve out the fruit powder of lacquer seeds, wherein the water content is lower than 6%, and the oil content is higher than 45%.

[0079] Using petroleum ether as a solvent, the volume ratio of lacquer seed fruit powder and extraction solvent is 1:20g / ml, at a temperature of 80°C, extract for 2 hours, extract twice, filter and combine the extracts, vacuum concentrate at 60°C, and concentrate The mixture was cooled to room temperature to obtain crude lacquer wax with a yield of 96%;

[0080] The second step: hydrogenation process of lacquer wax

[0081] Put the crude lacquer wax into a high-temperature and high-pressure reaction ket...

Embodiment 3

[0087] Step 1: Preparation of Crude Lacquer Wax

[0088] Dry the lacquer seeds with microwaves before use, crush the lacquer seeds with a blade crusher or a mill, and pass through a 40-mesh sieve. The dust is the pulp of the lacquer seeds. The volume ratio of the mass of the seed pulp to the extraction solvent is 1:15g / ml, the ultrasonic extraction power is 400W, the extraction temperature is 30°C, and the extraction is performed for 20 minutes; extraction is performed twice, and the extracts are combined after filtration and concentrated in a vacuum at 60°C. The concentrate was cooled to room temperature to obtain crude lacquer wax with an extraction rate of 98%;

[0089] The second step: hydrogenation process of lacquer wax

[0090] Put the crude lacquer wax into a high-temperature and high-pressure reactor, and add 0.3% palladium-carbon catalyst with a loading capacity of 0.5%, stir and heat up to make it fully mixed, the stirring speed is 200rpm, and the temperature range...

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Abstract

The invention discloses a method for preparing high-quality fine lacquer wax product, which comprises the following steps of: firstly, microwave drying lacquer seeds, separating skin and cores, and lixiviating the skin and flesh part of the lacquer seeds by using a non-polar solvent to obtain rough lacquer wax; heating and uniformly mixing the lacquer wax and a certain proportion of Pd / C catalyst in a high-temperature high-pressure reactor, charging hydrogen gas and maintaining a certain hydrogen gas pressure for reaction; after the reaction is completed, and filtering and discoloring the product while hot to obtain highly saturated lacquer wax; and detecting the variation of fatty acid content in the lacquer wax, by using gas chromatography. The method is simple and convenient, and the problems of low lacquer wax melting point, easy rancidity and the like caused by high content of unsaturated fatty acid in rough lacquer wax can be effectively solved. The obtained hydrogenated fine lacquer wax product has similar physical and chemical properties to Star Cherry-A white wax processed by Japan Araki Wax Manufacturing Company and can be widely applied to the field of daily chemicals.

Description

technical field [0001] The invention relates to the technical field of plant wax chemical conversion, in particular to a method for chemically modifying lacquer wax by using palladium carbon as a catalyst to prepare high-quality lacquer wax fine products with high saturation. Background technique [0002] Sumac mainly refers to a class of plants belonging to the family Anacardiaceae and the genus Toxicodendron. It is one of the traditional economic forests in my country. It has a long history of cultivation and rich variety resources. National lacquer or lacquer is well-known at home and abroad. The fruit of the lacquer tree, also known as lacquer seeds, is obliquely spherical and matures from September to October every autumn. The pericarp is divided into 3 layers, the exocarp is membranous; the mesocarp is a waxy layer, which can extract lacquer wax, which is light yellow or gray-green; the inner core is a seed, which can extract lacquer oil. Among the existing lacquer tr...

Claims

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Application Information

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IPC IPC(8): C11B11/00
CPCY02W30/74
Inventor 王成章董艳鹤何源峰
Owner NANJING ZHONGSEN BIOLOGICAL TECH CO LTD
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