CN102329693B - Method for preparing high-quality fine lacquer wax product - Google Patents

Method for preparing high-quality fine lacquer wax product Download PDF

Info

Publication number
CN102329693B
CN102329693B CN201110230852.6A CN201110230852A CN102329693B CN 102329693 B CN102329693 B CN 102329693B CN 201110230852 A CN201110230852 A CN 201110230852A CN 102329693 B CN102329693 B CN 102329693B
Authority
CN
China
Prior art keywords
lacquer
tree fat
lacquer tree
wax
hunter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201110230852.6A
Other languages
Chinese (zh)
Other versions
CN102329693A (en
Inventor
王成章
董艳鹤
何源峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Zhongsen Biological Technology Co ltd
Original Assignee
Institute of Chemical Industry of Forest Products of CAF
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institute of Chemical Industry of Forest Products of CAF filed Critical Institute of Chemical Industry of Forest Products of CAF
Priority to CN201110230852.6A priority Critical patent/CN102329693B/en
Publication of CN102329693A publication Critical patent/CN102329693A/en
Application granted granted Critical
Publication of CN102329693B publication Critical patent/CN102329693B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/74Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes

Landscapes

  • Fats And Perfumes (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

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

A kind of preparation method of high-quality fine lacquer wax product
Technical field
The present invention relates to a kind of vegetable wax chemical conversion technical field, specifically, is a kind ofly to using palladium carbon as catalyzer, and lacquer tree fat is carried out to chemical modification, prepares the method for the high-quality fine lacquer wax product of high saturation.
Background technology
Lacquer tree mainly refers to that Anacardiaceae, paint belong to a class plant of Toxicodendron, be one of traditional economic forest of China, its cultivation history is long, and variety source is abundant, because secreting a kind of lacquer (being raw lacquer), there is unique Optimality and be called as state paint or lacquer, enjoy great prestige both at home and abroad.The fruit of lacquer tree claims again to paint seed, is flat tiltedly spherical, and annual 9~October of autumn is ripe.Pericarp divides 3 layers, and exocarp is membranous; Mesocarp is wax layer, can extract lacquer tree fat, is light yellow or greyish-green; Kernel is seed, can squeeze urushoil.In existing lacquer tree colony, there is more than 30 kind strain more than 100,000,000 to set seeds, produce approximately more than 200 ten thousand tons of paint seed amounts per year, rank first in the world.
Rough lacquer tree fat outward appearance is pale yellow, greyish white or greyish-green solid, and refining Japan wax is shallow milk look wax after decolouring is processed.Refining lacquer tree fat has gluing sense, not hard, but flexible has tallow smell, places meeting frosting and blackening, easily break, and breach mattness.Dissolve in hot ethanol, dithiocarbonic anhydride, chloroform, ether, benzene, sherwood oil, tetracol phenixin, toluene, trichloroethane and turpentine wet goods.Relative density (20 ℃/20 ℃) 0.975~0.984d. refractive indexs (60 ℃) 1.450~1.456, insolubles impurity is less than 0.03%, weight loss on heating is less than 0.03%, 50~56 ℃ of molten points, iodine number 4~25, saponification value 200~240, acid number 6~20, unsaponifiables quality mark is 2%~5%.Its chemical composition is by 90%~95% Witepsol W-S 55,3%~15% free fatty acids, and 1%~2% free alkyl alcohol forms, wherein tie platform lipid acid by 70%~75% palmitinic acid, 3%~5% stearic acid, 15%~35% oleic acid, 2%~5% binary of fatty acids forms.
Lacquer tree fat is a kind of important industrial chemicals, directly separation and purification palmitinic acid, stearic acid, oleic acid and linolic acid and salt thereof.From lacquer tree fat, can also refine the high fatty alcohols such as triacontanol price quote, it is the significant surfaces promoting agent of the industries such as soapmaking, washing, lubricated, plasticising, makeup, not only import plam oil can be replaced, for country saves a large amount of foreign exchanges, and the domestic and international market of haze tallow can be expanded.Especially the fatty acid cane sugar ester of being processed by haze tallow, isopropyl fatty acid ester (Wickenol 111 is main) is applied very extensive in the world, is used in particular for the aspects such as superior cosmetics, emulsifying agent.
The defect of lacquer tree fat is that softening temperature is low, and acid number is high, the physical and chemical performance of the lacquer tree fat that the Star Cherry-A board Chinese wax of Japan waste wooden wax company processing obviously improves.Yet the processing and utilization of China's paint seed is also nowhere near.Be that traditional concept does not change on the one hand, follow with raw lacquer and be processed as master always; Be because paint seed complete processing is backward and haze tallow deep processed product cost is high, small scale on the other hand, thereby limited the processing and utilization of haze tallow.Especially the analysis of the refining wax of Japanese Star Cherry-A is being found to the content of its unsaturated fatty acids (being mainly oleic acid) only has 1.90%~2.90%, and in Chinese haze tallow the content of unsaturated fatty acids up to 15%~25%.The unsaturated fatty acids of high-content not only makes the fusing point of haze tallow lower than the refining haze tallow of Japan, and easy oxidative rancidity, has reduced its quality.
In order to improve performance and the quality of Chinese lacquer tree fat, expand its purposes, the present invention adopts the method for microwave treatment, shortening, decolouring, take palladium carbon as catalyzer, by undersaturated lipid acid in lacquer tree fat, be mainly oleic acid and linolic acid, be converted into saturated stearic acid, make the refining haze tallow of its chemical composition and Japan more approaching, thereby promote its meticulous utilization.
Summary of the invention
The object of the present invention is to provide a kind of method of high-quality fine lacquer wax product, to solve in lacquer tree fat, the high fusing point causing of unsaturated fatty acid content is low, the easy problem such as become sour, another object is to make the chemical composition of lacquer tree fat more approaching with Japanese refining haze tallow, to promote the outlet of lacquer tree fat and to become more meticulous utilization etc.
For realizing above object, the present invention adopts the method for microwave treatment, shortening, decolouring, take palladium carbon as catalyzer, in high-temperature high-pressure reaction kettle, lacquer tree fat is carried out to hydrogenation reaction, and unsaturated fatty acids is wherein converted into saturated lipid acid, and concrete steps are:
The first step: the pre-treatment of raw material
Before being used, paint seed adopts microwave drying, microwave power 100-800W, microwave exposure 30-300s, with blade type crusher or runner milling, pulverize paint seed, the sieve more than 20 orders, removes upper strata seed nuclei, the pulp fraction of sifting out paint seed, water ratio is lower than 6%, and fat content is higher than 45%.
Second step: the preparation of rough lacquer tree fat
The paint seed pulp fraction that adopts non-polar solvent lixiviate to dry, the volume ratio of paint seed pulp fraction quality and extraction solvent is 1: 6-30 (g/ml), temperature 0-90 ℃, extract 10-360min, extract 1-3 time, after filtering, merge vat liquor, vacuum concentration under 30-60 ℃ of condition, enriched material is cooled to room temperature, obtains the rough lacquer tree fat of pale green grey;
The 3rd step: the hydrogenation reaction of lacquer tree fat
Rough lacquer tree fat is inserted in high-temperature high-pressure reaction kettle, add palladium-carbon catalyst, catalyst levels is the 0.1%-1.0% of lacquer tree fat quality.Reactor is warmed up to 70 ℃ of lacquer tree fats and melts completely as liquid state, stirs catalyzer is fully mixed, and stirring velocity is 60-300rpm, is filled with hydrogen, and controls hydrogen pressure and maintain 0.1-1MPa, temperature of reaction 80-160 ℃, reaction times 1-8h;
The 4th step: palladium carbon reclaims
After hydrogenation reaction is complete, filtered while hot, filter residue washs 2-3 time at 50-100 ℃ of 1M sodium hydroxide solution, then washes 2-3 time with deionized water, reclaims palladium carbon, recycle 4-10 time;
The 5th step, the decolouring of hydrogenation lacquer tree fat
Hydrogenation lacquer tree fat filtrate is maintained the temperature to 50-80 ℃, and gac and attapulgite are 1 in mass ratio: 1-10 is as discoloring agent, and discoloring agent and hydrogenation lacquer tree fat crude product mass ratio are 1: 20-200, stirs decolouring 10-80min.Plate Filtration, filtrate is put into pallet, naturally cooling, the fine lacquer wax product that preparation whiteness is greater than 90, its acid number and iodine number are less than 10.
The 6th step: fine lacquer wax product whiteness performance measurement
The mensuration of fine lacquer wax product whiteness adopts WSC-S colour examining colour-difference-metre, is adjusted into Hunter system, and preheating 30min, measures its L *, a *, b *, E value, utilize Hunter (hunter) completely whiteness formulas calculate its whiteness (W).
W=100-[(100-L *) 2+a *2+b *2] 1/2
Hunter (Hunter) whiteness of W-fine lacquer wax product sample; L *-Hunter (Hunter) lightness index; a *, b *-Hunter (Hunter) chromaticity index.
The 7th step: fine lacquer wax product chemical constituents determination
The fine lacquer wax product that takes a morsel carries out esterification, adopts the variation of its lipid acid relative content of GC-MS chromatography determination.GC condition: carrier gas is the helium of purity 99.99%, fused-silica capillary column 5MS 15m * 0.25mm, 250 ℃ of injection port temperature, 110 ℃ of post initial temperature, insulation 10min, rises to 220 ℃ with 10 ℃/min temperature rise rate, insulation 18min.Before post, press 90kPa, splitting ratio 50: 1, sample size 1 μ l.MS condition: 280 ℃ of interface temperature, ion source is selected EI source, electron energy 70eV, 230 ℃ of ion source temperatures, photomultiplier transit tube voltage 2200V, sweep limit 29.0-450.0u, mass spectral database NIST.
The refining wax physical and chemical performance of Japan Star Cherry-A is: molten some 50-54 ℃, acid number 15-20, iodine number 5-18, saponification value 205-225, the relative content of chemical constitution palmitinic acid is 76.40%, stearic relative content is 17.60%, and the relative content of oleic acid is 2.90%, and the content of Chinese lacquer tree fat unsaturated fatty acids is up to 10%-20%.The unsaturated fatty acids of high-content not only makes the fusing point of haze tallow lower than the refining haze tallow of Japan, and easy oxidative rancidity, has reduced its quality.As table 1.
The Chinese lacquer tree fat of table 1 and the contrast of Japanese haze tallow chemical constitution
Chinese lacquer cerinic acid value and iodine number are higher, high mainly due to water content in raw material, before processing, go mouldy and cause and become sour, in order to reduce the acid number in Chinese lacquer tree fat, this patent adopts microwave drying sterilization to remove enzyme first, microwave power 100-800W, preferred 200-400W, microwave exposure 30-300s, preferred 60-200s, microwave exposure not only can be dried, remove moisture content, make the pulp fraction water ratio that paints seed lower than 6%, and microwave exposure has shell-broken effect, with blade type crusher or runner milling, pulverize paint seed, Pi Ren is more easily separated, pulp fraction is easily broken, sieve more than 20 orders, remove upper strata seed nuclei, sift out fat content higher than 45% pulp skin powder.
This patent carries out the pulp skin powder of Microwave Pretreatment to paint seed raw material, adopt non-polar solvent lixiviate, non-polar solvent is sherwood oil (60~120 ℃), No. 6 solvent oils, a kind of in ether, normal hexane, pentane etc., preferably sherwood oil (60~120 ℃), No. 6 solvent oils and normal hexane.Lixiviate mode can adopt in Soxhlet extraction, thermal backflow extraction and ultrasonic extraction a kind of, Soxhlet is extracted temperature 60-70 ℃, extract 180min-360min, temperature 60-90 ℃ is extracted in thermal backflow, extract 30min-180min, ultrasonic extraction power 50-400W, extracts temperature 0-50 ℃, extracts 10min-30min; Preferred ultrasonic extraction.
Catalyzer is a kind of gordian technique and the material in oil hydrogenation industry, directly affects the quality and performance of product.Conventionally the commercial catalysts adopting is nickeliferous or the catalyzer of copper, yet the existence of trace copper makes grease accelerate to ruin, and nickel has carcinogenesis to human body, so noble metal catalyst, particularly palladium, platinum catalyst are invested sight by increasing country.These catalyzer not only have high catalytic activity, selectivity, and can reduce the residual of the content of trans acids and catalyzer.This patent is selected palladium-carbon catalyst, and the charge capacity of C catalyst palladium is 2%~10%, and preferably 3%~7%.
In order to reduce iodine number, improve lacquer tree fat saturation ratio and fusing point, this patent adopts hydrogenation reaction.In high-temperature high-pressure reaction kettle, add palladium-carbon catalyst, catalyst levels is the 0.1%-1.0% of lacquer tree fat quality.Reactor is warmed up to 70 ℃ of lacquer tree fats and melts completely as liquid state, stirs catalyzer is fully mixed, and stirring velocity is 60-300rpm, is filled with hydrogen, and controls hydrogen pressure and maintain 0.1-1MPa, temperature of reaction 80-160 ℃, reaction times 1-8h.
It is catalyzer that this patent be take palladium carbon (5.0%), at hydrogen pressure 0.5MPa, under the condition that temperature is 100 ℃, react 2h, result as shown in Figure 1, increase with palladium carbon consumption, the transformation efficiency of unsaturated fatty acids also increases thereupon, and the relative content of saturated fatty acid increases, and the relative content of unsaturated fatty acids reduces.Consider that palladium carbon is expensive, increasing its usage quantity can raise the cost, and therefore, the preferred palladium carbon of this patent usage quantity is 0.2% more applicable.
It is catalyzer that this patent be take Pd/C (5%), and consumption is 0.15%, at 100 ℃, reacts respectively 2h, 4h and 6h under the condition of 0.5MPa.As shown in Figure 2, with the prolongation in reaction times, the transformation efficiency of unsaturated fatty acids raises result, but after 2h to the longer time, it is not clearly that stearic relative content changes.In addition, the long more multipotency that not only consumes of reaction times, raises the cost, and with the decline of hydrogen pressure, also easily causes the decline of lacquer tree fat quality, as acid value rising, oxidative stability reduction etc.React the lacquer tree fat of 6 hours with regard to obviously the lacquer tree fat color than 2-4 hour is dark.Therefore, the suitable time of this patent lacquer tree fat hydrogenation is excellent selects at 2-4h.
This patent adds Pd/C catalyzer (0.15%), under the condition of hydrogen pressure 0.5MPa, reacts 2h, and temperature is respectively 80,100 and 120 ℃, and result as shown in Figure 3.By accompanying drawing 3, can be found out, temperature of reaction has a certain impact to lacquer tree fat hydrogenation tool, and with the rising of temperature, transformation efficiency also increases, and too high temperature of reaction not only will consume the energy, also easily makes the metal nucleus of catalyzer be heated and grow up and reduce the activity of catalyzer.Therefore, the preferred 100 ℃ of left and right of this patent.
This patent adds Pd/C catalyzer (0.15%), at 100 ℃, reacts 2h, and hydrogen pressure is respectively 0.3,0.5 and 0.7MPa.Shown in accompanying drawing 4, hydrogen pressure rises to 0.7MPa by 0.3MPa, and some changes the relative content of stearic acid and unsaturated fatty acids, especially between 0.3MPa to 0.5MPa.And too high pressure not only can cause the waste of resource, also dangerous in Specific construction.Therefore, the preferred 0.5MPa of the suitable pressure of this patent lacquer tree fat hydrogenation left and right.
This patent passes through single factor analysis, the suitable condition of lacquer tree fat hydrogenation is: catalyzer (5% palladium carbon) consumption 0.1%~0.5%, preferably 0.2%~0.3%, reaction times 2~8h, preferred 2~4h, 80~120 ℃ of temperature ranges, preferably 90~100 ℃, hydrogen pressure maintains 0.3~1MPa, preferably 0.4~0.7MPa.
Palladium catalyst is more expensive, in order to reduce production costs, this patent, in the renovation process of palladium catalyst alkali liquid washing, mainly adopts overheated sodium hydroxide solution washing to be attached to the organism such as glycerin fatty acid ester on palladium catalyst surface, thereby makes palladium crystal grain have activity.After hydrogenation reaction is complete, filtered while hot, filter residue washs 2-3 time at 50-100 ℃ of 1M sodium hydroxide solution, then washes 2-3 time with deionized water, reclaims palladium-carbon catalyst, reusable edible 4-10 time.
The discoloring agents such as charcoal and molecular sieve decolouring for this patent screening plain particles charcoal, decolouring phosphoric acid charcoal for sugar, monosodium glutamate decolouring, atlapulgite, attapulgite, mixing discoloring agent, adopt orthogonal test L 9(3 4) determine and best decolorization condition hydrogenation lacquer tree fat filtrate is maintained the temperature to 50-80 ℃, gac and attapulgite are 1 in mass ratio: 1-10 is as discoloring agent, preferably 1: 1-5; Discoloring agent and hydrogenation lacquer tree fat crude product mass ratio are 1: 20-200, and preferably 1: 150-200, stirs decolouring 10-80min, preferably 10-30min.Plate Filtration, filtrate is put into pallet, naturally cooling, the fine lacquer wax product that preparation whiteness is greater than 90, obtains best decolorizing effect.As table 2
The decolouring impact of the different discoloring agents of table 2 on hydrogenation lacquer tree fat
This patent adopts gas chromatography analysis method, lacquer tree fat before and after hydrogenation is carried out to chemical composition analysis, analytical results is as accompanying drawing 5, accompanying drawing 6 and table 3, after hydrogenation, stearic relative content obviously raises, reach 15.85%, and the relative content of oleic acid obviously reduces, the relative content of palmitinic acid changes and is not obvious.As shown in Figure 7, in the Star Cherry-A board Chinese wax of Japan waste wooden wax company processing, the relative content of palmitinic acid is 76.40%, stearic relative content is 17.60%, the relative content of oleic acid is 2.90%, and linoleic content is 0, and the lacquer tree fat after this and hydrogenation is more approaching, therefore, this patent approaches with Japanese refining Chinese wax by the physical and chemical performance of the fine lacquer wax product of hydrogenation and decolouring preparation.
Lacquer tree fat main fatty acid ratio analysis before and after table 3 hydrogenation
Figure BSA00000555741900052
Note: a-b is respectively the lacquer tree fat before and after hydrogenation, c be the Star Cherry-A board Chinese wax of Japanese waste wooden wax company.
Beneficial effect of the present invention shows as:
1. adopt first microwave drying sterilization to remove enzyme pre-treatment paint seed, not only can be dried, remove moisture content, make the pulp fraction water ratio that paints seed lower than 6%, and microwave exposure has shell-broken effect, with blade type crusher or runner milling, pulverize paint seed, Pi Ren is more easily separated, and pulp fraction is easily broken, sieve more than 20 orders, remove upper strata seed nuclei, sift out fat content higher than 45% pulp skin powder, effectively prevent that lacquer tree fat from going mouldy and causing that acid number raises.
2. adopt first the pretreated paint seed of ultrasonic extraction microwave drying, the extraction yield of lacquer tree fat is greater than 98%, and more traditional thermal backflow and Soxhlet are extracted, and temperature is low, and the time is short, and efficiency is high.
3. adopt first palladium-carbon catalyst to carry out hydrogenation to lacquer tree fat, prepare the lacquer tree fat of high saturation, its iodine number, lower than 10, obviously improves the hardness of lacquer tree fat.
4. adopt gac and attapulgite clay compounded discoloring agent, the fine lacquer wax product that preparation whiteness is greater than 90, obtains best decolorizing effect, and acid number is less than 7, has obviously reduced the acid number of product, efficiently solves the problem that lacquer tree fat fusing point is low, easily become sour.
Accompanying drawing explanation:
Accompanying drawing 1 is the impact of palladium carbon consumption on lacquer tree fat hydrogenation process
Accompanying drawing 2 is the impact of time on lacquer tree fat hydrogenation process
The impact of accompanying drawing 3 temperature on lacquer tree fat hydrogenation process
Accompanying drawing 4 is the impact of pressure on lacquer tree fat hydrogenation process
The gas chromatogram that accompanying drawing 5 is rough lacquer tree fat
Accompanying drawing 6 is lacquer tree fat gas chromatogram after hydrogenation
Accompanying drawing 7 is the total ion current figure of the Star Cherry-A board Chinese wax of Japan waste wooden wax company.
Embodiment
Following examples are more of the present invention giving an example, and should not be seen as limitation of the invention.
The preparation of embodiment 1 high-quality fine lacquer wax product
The first step: the pre-treatment of raw material
Before being used, paint seed adopts microwave drying, microwave power 100-800W, preferred 200-400W, microwave exposure 30-300s, preferably 60-200s; With blade type crusher or runner milling, pulverize paint seed, the sieve more than 20 orders, removes upper strata seed nuclei, sifts out the pulp fraction of paint seed, and wherein water ratio is lower than 6%, and fat content is higher than 45%;
Second step: the preparation of rough lacquer tree fat
The paint seed powder that adopts non-polar solvent lixiviate to dry, non-polar solvent is sherwood oil (60~120 ℃), No. 6 solvent oils, a kind of in ether, normal hexane, pentane etc., preferably sherwood oil (60~120 ℃), No. 6 solvent oils and normal hexane.The volume ratio of paint seed pulp fraction quality and extraction solvent is 1: 6-30 (g/ml), lixiviate mode adopts in Soxhlet extraction, thermal backflow extraction and ultrasonic extraction a kind of, as Soxhlet is extracted temperature 60-70 ℃, extract 180min-360min, temperature 60-90 ℃ is extracted in thermal backflow, extracts 30min-180min, ultrasonic extraction power 50-400W, extract temperature 0-50 ℃, extract 10min-30min; Preferred ultrasonic extraction.Extract 1-3 time, after filtering, merge vat liquor, vacuum concentration under 30-60 ℃ of condition, enriched material is cooled to room temperature, obtains the rough lacquer tree fat of pale green grey, and extraction yield is greater than 95%;
The 3rd step: the hydrogenation reaction of lacquer tree fat
Rough lacquer tree fat is inserted in high-temperature high-pressure reaction kettle, add palladium-carbon catalyst, catalyst levels is the 0.1%-1.0% of lacquer tree fat quality.Reactor is warmed up to 70 ℃ of lacquer tree fats and melts completely as liquid state, stirs catalyzer is fully mixed, and stirring velocity is 60-300rpm, is filled with hydrogen, and controls hydrogen pressure and maintain 0.1-1MPa, temperature of reaction 80-160 ℃, reaction times 1-8h; The charge capacity of palladium-carbon catalyst palladium is 2%~10%, preferably 3%~7%;
This patent passes through single factor analysis, the top condition of lacquer tree fat hydrogenation is: catalyzer (5% palladium carbon) consumption 0.1%~0.5%, preferably 0.2%~0.3%, reaction times 2~8h, preferred 2~4h, 80~120 ℃ of temperature ranges, preferably 90~100 ℃, hydrogen pressure maintains 0.3~1MPa, preferably 0.4~0.7MPa;
The 4th step: palladium carbon reclaims
After hydrogenation reaction is complete, filtered while hot, filter residue is at 50-100 ℃, and preferably 80-90 ℃, with 1M sodium hydroxide solution washing 2-3 time, then washes 2-3 time with deionized water, reclaims palladium carbon, recycle 4-10 time, preferably 4-6 time;
The 5th step, the decolouring of hydrogenation lacquer tree fat
Adopt orthogonal test L 9(3 4) determine and best decolorization condition hydrogenation lacquer tree fat filtrate is maintained the temperature to 50-80 ℃, gac and attapulgite are 1 in mass ratio: 1-10 is as discoloring agent, preferably 1: 1-5; Discoloring agent and hydrogenation lacquer tree fat crude product mass ratio are 1: 20-200, and preferably 1: 150-200, stirs decolouring 10-80min, preferably 10-30min.Plate Filtration, filtrate is put into pallet, naturally cooling, the fine lacquer wax product that preparation whiteness is greater than 90, acid number and iodine number are less than 10;
The 6th step: fine lacquer wax product whiteness performance measurement
The mensuration of fine lacquer wax product whiteness adopts WSC-S colour examining colour-difference-metre, is adjusted into Hunter system, and preheating 30min, measures its L *, a *, b *, E value, utilize Hunter (hunter) completely whiteness formulas calculate its whiteness (W).
W=100-[(100-L *) 2+a *2+b *2] 1/2
Hunter (Hunter) whiteness of W-fine lacquer wax product sample; L *-Hunter (Hunter) lightness index; a *, b *-Hunter (Hunter) chromaticity index;
The 7th step: fine lacquer wax product chemical constituents determination
The fine lacquer wax product that takes a morsel carries out esterification, adopts the variation of its lipid acid relative content of GC-MS chromatography determination.GC condition: carrier gas is the helium of purity 99.99%, fused-silica capillary column -5 MS 15m * 0.25mm, 250 ℃ of injection port temperature, 110 ℃ of post initial temperature, insulation 10min, rises to 220 ℃ with 10 ℃/min temperature rise rate, insulation 18min.Before post, press 90kPa, splitting ratio 50: 1, sample size 1 μ L.MS condition: 280 ℃ of interface temperature, ion source is selected EI source, electron energy 70eV, 230 ℃ of ion source temperatures, photomultiplier transit tube voltage 200V, sweep limit 29.0-450.0u, mass spectral database NIST.
Embodiment 2
The first step: the preparation of rough lacquer tree fat
Paint seed 500g, puts into 400W microwave device microwave exposure 180s, cooling, then microwave exposure 30s, cooling, with blade type crusher or runner milling, pulverize paint seed, the sieve more than 20 orders, removes upper strata seed nuclei, the fruit powder that sifts out paint seed, wherein water ratio is lower than 6%, and fat content is higher than 45%.
Take sherwood oil as solvent, and the volume ratio of paint seed fruit powder and extraction solvent is 1: 20g/ml, and 80 ℃ of temperature, extract 2h, extract 2 times, after filtering, merge vat liquor, vacuum concentration under 60 ℃ of conditions, enriched material is cooled to room temperature, obtains rough lacquer tree fat, yield 96%;
Second step: the hydrogenation process of lacquer tree fat
Rough lacquer tree fat is inserted in high-temperature high-pressure reaction kettle, and to add 0.15% charge capacity be 0.5% palladium-carbon catalyst, stirring heats up fully mixes it, and stirring velocity is 200rpm, 100 ℃ of temperature ranges; Be filled with hydrogen, and control hydrogen pressure and maintain 0.5MPa, reaction 6h;
The 3rd step: the processing after lacquer tree fat hydrogenation
After hydrogenation reaction is complete, filtered while hot is washed 3 times with 1M sodium hydroxide solution, then is washed 3 times with deionized water at 80 ℃, reclaims palladium carbon.Hydrogenation lacquer tree fat filtrate is maintained the temperature to 80 ℃, gac and attapulgite be in mass ratio 1: 2 as discoloring agent, discoloring agent and hydrogenation lacquer tree fat crude product mass ratio are 1: 200, stir decolouring 30min.Plate Filtration, filtrate is put into pallet, naturally cooling, the fine lacquer wax product that preparation whiteness is greater than 90, acid number and iodine number are less than 10;
The 4th step: the mensuration of lacquer tree fat chemical composition
The lacquer tree fat taking a morsel after hydrogenation and decolouring carries out esterification, adopts the variation of its lipid acid relative content of gas chromatography determination.Analytical results shows, in fine lacquer wax product, unsaturated fatty acids is mainly that oleic acid and linoleic relative content have dropped to 4% by 14%, and stearic content is raised to 17% by 7%.
Embodiment 3
The first step: the preparation of rough lacquer tree fat
Before being used, paint seed uses microwave drying, with blade type crusher or runner milling, pulverize paint seed, cross 40 object sieves, dust is the pulp fraction of paint seed, and the pulp fraction of getting paint seed, take normal hexane as solvent, the volume ratio of paint seed pulp fraction quality and extraction solvent is 1: 15g/ml, ultrasonic extraction power 400W, extracts 30 ℃ of temperature, extracts 20min; Extract 2 times, after filtering, merge vat liquor, vacuum concentration under 60 ℃ of conditions, enriched material is cooled to room temperature, obtains rough lacquer tree fat, extraction yield 98%;
Second step: the hydrogenation process of lacquer tree fat
Rough lacquer tree fat is inserted in high-temperature high-pressure reaction kettle, and to add 0.3% charge capacity be 0.5% palladium-carbon catalyst, stirring heats up fully mixes it, and stirring velocity is 200rpm, 120 ℃ of temperature ranges; Be filled with hydrogen, and control hydrogen pressure and maintain 0.5MPa, reaction 1.5h;
The 3rd step: the processing after lacquer tree fat hydrogenation
After hydrogenation reaction is complete, filtered while hot is washed 2 times with 1M sodium hydroxide solution, then is washed 3 times with deionized water at 70 ℃, reclaims palladium carbon.Hydrogenation lacquer tree fat filtrate is maintained the temperature to 70 ℃, gac and attapulgite be in mass ratio 1: 1 as discoloring agent, discoloring agent and hydrogenation lacquer tree fat crude product mass ratio are 1: 150, stir decolouring 30min.Plate Filtration, filtrate is put into pallet, naturally cooling, the fine lacquer wax product that preparation whiteness is greater than 90, acid number and iodine number are less than 10;
The 4th step: the mensuration of lacquer tree fat chemical composition
The lacquer tree fat taking a morsel after hydrogenation and decolouring carries out esterification, adopts the variation of its lipid acid relative content of gas chromatography determination.Analytical results shows, in fine lacquer wax product, unsaturated fatty acids is mainly that oleic acid and linoleic relative content have dropped to 6.5% by 14%, and stearic content is raised to 14.7% by 7%.
Embodiment 4
The first step: the preparation of rough lacquer tree fat
Before paint seed is used, with microwave drying, with blade type crusher or runner milling, pulverize paint seed, cross 40 object sieves, dust is the pulp fraction of paint seed, the pulp fraction of getting paint seed, No. 6 solvent oils of take are solvent, the volume ratio of paint seed pulp fraction quality and extraction solvent is 1: 20g/ml, Soxhlet is extracted 65 ℃ of temperature, extract 5 hours, vat liquor is vacuum concentration under 60 ℃ of conditions, and enriched material is cooled to room temperature, obtain rough lacquer tree fat, extraction yield 97%;
Second step: the hydrogenation process of lacquer tree fat
Rough lacquer tree fat is inserted in high-temperature high-pressure reaction kettle, and to add 0.5% charge capacity be 0.5% palladium-carbon catalyst, stirring heats up fully mixes it, and stirring velocity is 200rpm, 100 ℃ of temperature ranges; Be filled with hydrogen, and control hydrogen pressure and maintain 0.7MPa, reaction 2h;
The 3rd step: the processing after lacquer tree fat hydrogenation
After hydrogenation reaction is complete, filtered while hot is washed 2 times with 1M sodium hydroxide solution, then is washed 2 times with deionized water at 65 ℃, reclaims palladium carbon.Hydrogenation lacquer tree fat filtrate is maintained the temperature to 65 ℃, gac and attapulgite be in mass ratio 1: 5 as discoloring agent, discoloring agent and hydrogenation lacquer tree fat crude product mass ratio are 1: 180, stir decolouring 30min.Plate Filtration, filtrate is put into pallet, naturally cooling, the fine lacquer wax product that preparation whiteness is greater than 90, acid number and iodine number are less than 10;
The 4th step: the mensuration of lacquer tree fat chemical composition
The lacquer tree fat taking a morsel after hydrogenation and decolouring carries out esterification, adopts the variation of its lipid acid relative content of gas chromatography determination.Analytical results shows, in hydrogenation lacquer tree fat essence, unsaturated fatty acids is mainly that oleic acid and linoleic relative content have dropped to 5% by 14%, and stearic content is raised to 16% by 7%.

Claims (3)

1. a preparation method for high-quality fine lacquer wax product, is characterized in that being comprised of following steps:
The first step: the pre-treatment of raw material
Before being used, paint seed adopts microwave drying, microwave power 100~800W, microwave exposure 30~300s, with blade type crusher or runner milling, pulverize paint seed, the sieve more than 20 orders, removes upper strata seed nuclei, the pulp fraction of sifting out paint seed, water ratio is lower than 6%, and fat content is higher than 45%;
Second step: the preparation of rough lacquer tree fat
Adopt the paint seed pulp fraction of non-polar solvent ultrasonic extraction microwave drying, ultrasonic extraction power 50~400W, extract 0~50 ℃ of temperature, extract 10~30min, the volume ratio of paint seed pulp fraction quality and extraction solvent with g/ml count 1: 6~30, extract 1~3 time, after filtering, merge vat liquor, vacuum concentration under 30~60 ℃ of conditions, enriched material is cooled to room temperature, obtains the rough lacquer tree fat of pale green grey;
The 3rd step: the hydrogenation of lacquer tree fat and decoloring reaction
Rough lacquer tree fat is inserted in high-temperature high-pressure reaction kettle, add palladium-carbon catalyst, the charge capacity of palladium-carbon catalyst palladium is 2~10%, and palladium-carbon catalyst consumption is 0.1~1.0% of lacquer tree fat quality, and reactor is warmed up to 70 ℃ of lacquer tree fats and melts completely as liquid state, stirring fully mixes catalyzer, stirring velocity is 60~300rpm, is filled with hydrogen, and controls hydrogen pressure and maintain 0.4~1MPa, 100~160 ℃ of temperature of reaction, reaction times 1~8h;
The 4th step: palladium carbon reclaims
After hydrogenation reaction is complete, filtered while hot, filter residue washs 2~3 times with 1M sodium hydroxide solution at 50~100 ℃, then washes 2~3 times with deionized water, reclaims palladium-carbon catalyst, recycle 4~10 times;
The 5th step: the decolouring of hydrogenation lacquer tree fat
Hydrogenation lacquer tree fat filtrate is maintained the temperature to 50~80 ℃, gac and attapulgite are 1: 1~10 as discoloring agent in mass ratio, discoloring agent and hydrogenation lacquer tree fat crude product mass ratio are 1: 20~200, stir decolouring 10~80min, Plate Filtration, filtrate is put into pallet, naturally cooling, the fine lacquer wax product that preparation whiteness is greater than 90, its acid number and iodine number are less than 10;
The 6th step: fine lacquer wax product whiteness performance measurement
The mensuration of fine lacquer wax product whiteness adopts WSC-S colour examining colour-difference-metre, is adjusted into Hunter system, and preheating 30min, measures its L *, a *, b *, E value, utilize Hunter (hunter) completely whiteness formulas calculate its whiteness (W);
W=100-[(100-L *) 2+a *2+b *2] 1/2
Hunter (Hunter) whiteness of W-fine lacquer wax product sample; L *-Hunter (Hunter) lightness index; a *, b *-Hunter (Hunter) chromaticity index.
2. a kind of preparation method of high-quality fine lacquer wax product according to claim 1, is characterized in that, in the preparation of the rough lacquer tree fat of second step, non-polar solvent is a kind of in the sherwood oil of 60~120 ℃ of boiling points, No. 6 solvent oils, ether, normal hexane, pentane.
3. a kind of preparation method of high-quality fine lacquer wax product according to claim 1, is characterized in that, the charge capacity of the 3rd step palladium-carbon catalyst palladium is preferably 3~7%.
CN201110230852.6A 2011-08-12 2011-08-12 Method for preparing high-quality fine lacquer wax product Expired - Fee Related CN102329693B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110230852.6A CN102329693B (en) 2011-08-12 2011-08-12 Method for preparing high-quality fine lacquer wax product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110230852.6A CN102329693B (en) 2011-08-12 2011-08-12 Method for preparing high-quality fine lacquer wax product

Publications (2)

Publication Number Publication Date
CN102329693A CN102329693A (en) 2012-01-25
CN102329693B true CN102329693B (en) 2014-03-05

Family

ID=45481662

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110230852.6A Expired - Fee Related CN102329693B (en) 2011-08-12 2011-08-12 Method for preparing high-quality fine lacquer wax product

Country Status (1)

Country Link
CN (1) CN102329693B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435468A (en) * 2013-08-26 2013-12-11 苏勇 Method for producing stearic acid by utilizing cottonseed oil soapstock
CN103849470B (en) * 2014-03-26 2015-04-15 云南省轻工业科学研究院 Preparation method of lacquer tree seed wax oil
CN103965780B (en) * 2014-05-21 2016-01-20 云南省轻工业科学研究院 A kind of woodenware lacquer tree fat coating and preparation method thereof
HUE040333T2 (en) 2014-06-04 2019-02-28 Jena Trading Aps Method and plant for separation of wax and fibers from plants
CN105062658B (en) * 2015-08-06 2018-06-19 四川凌盾生态农业科技开发有限责任公司 A kind of green extraction process of lacquer tree fat
CN109554232A (en) * 2018-11-30 2019-04-02 中国林业科学研究院林产化学工业研究所 A kind of preparation method of high-performance novel compounding wax
CN113150875B (en) * 2020-12-30 2023-04-07 陕西秦乔农林生物科技有限公司 Low-chroma lacquer wax refining process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101205505A (en) * 2007-12-11 2008-06-25 中国林业科学研究院林产化学工业研究所 Extraction method of japan wax, japan wax composite nano material and preparation method
CN101348750A (en) * 2008-08-29 2009-01-21 中国林业科学研究院资源昆虫研究所 Decolorizing method of Chinese haze tallow
CN101885986A (en) * 2010-07-16 2010-11-17 华东理工大学 Method for refining biological oil
CN101906354A (en) * 2010-08-06 2010-12-08 中国林业科学研究院林产化学工业研究所 A kind of method of preparing high-quality colorless lacquer wax quickly by ultraviolet decoloring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101205505A (en) * 2007-12-11 2008-06-25 中国林业科学研究院林产化学工业研究所 Extraction method of japan wax, japan wax composite nano material and preparation method
CN101348750A (en) * 2008-08-29 2009-01-21 中国林业科学研究院资源昆虫研究所 Decolorizing method of Chinese haze tallow
CN101885986A (en) * 2010-07-16 2010-11-17 华东理工大学 Method for refining biological oil
CN101906354A (en) * 2010-08-06 2010-12-08 中国林业科学研究院林产化学工业研究所 A kind of method of preparing high-quality colorless lacquer wax quickly by ultraviolet decoloring

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
徐三魁.常压低温油脂加氢Pd/C催化剂的研究.《河南工业大学学报(自然科学版)》.2006,第27卷(第6期), *
董艳鹤等.漆蜡的吸附脱色工艺研究.《林产化学与工业》.2011,第31卷(第2期), *
董艳鹤等.漆蜡的提取工艺及其化学成分.《北京林业大学学报》.2010,第32卷(第4期), *

Also Published As

Publication number Publication date
CN102329693A (en) 2012-01-25

Similar Documents

Publication Publication Date Title
CN102329693B (en) Method for preparing high-quality fine lacquer wax product
Cheng et al. Economics of plant oil recovery: A review
CN101906354B (en) Method for preparing high-quality colorless lacquer wax quickly by ultraviolet decoloring
CN101691520B (en) Walnut oil refining method
CN103666749A (en) Processing process for rapeseed oil
CN102766524B (en) Method for squeezing edible tea seed oil at normal temperature
CN101319168A (en) Method for preparing wax tree wax with wax tree seed
CN103509651A (en) Method for extracting ethyl ester enriched fish oil from fish oil refining byproduct
CN101747998A (en) Method utilizing waste vegetable and animal fat to manufacture candle
CN101411364A (en) A kind of technique for producing walnut oil by cold pressing and cold refining method
CN104450164A (en) Method for preparing oil from high-quality rapeseeds with high content of oil under low-temperature and low-moisture conditions
CN103666750A (en) Refining method of peony seed oil and soapmaking technology
CN107904006A (en) A kind of high-quality technique for processing walnut oil
CN103451009B (en) Preparation method of non-edible animal and plant crude oil refined oil
CN111849614A (en) Preparation method of cosmetic base oil
CN101225345B (en) Refining method for insect wax
CN104140885B (en) Oil plant seed is that raw material prepares the method with oxidation resistance long chain fat acid esters
CN102533436A (en) Method for processing health-care camellia oil
CN103382412B (en) Preparation process for low-temperature cold-pressed carotene-rich peanut oil
CN108085129B (en) Preparation method of wood wax oil
CN101177650A (en) Method for extracting shellac wax and shellac wax prepared by this method
Mantell et al. Supercritical fluid extraction
CN102326633A (en) Method for preparing edible oil with high linoleic acid ratio from salt-resistant vegetable seeds
CN108251205A (en) A kind of giving off a strong fragrance rapeseed oil production technology
CN109181883B (en) Production process of refined horse oil ethyl ester

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20120125

Assignee: ZHENJIANG HURUI BIOTECHNOLOGY CO.,LTD.

Assignor: INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF

Contract record no.: 2016320000222

Denomination of invention: Method for preparing high-quality fine lacquer wax product

Granted publication date: 20140305

License type: Exclusive License

Record date: 20161128

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190806

Address after: Room 213, Kechuang Base, No. 3 Hengda Road, Nanjing Economic and Technological Development Zone, Jiangsu Province

Patentee after: NANJING ZHONGSEN BIOLOGICAL TECHNOLOGY Co.,Ltd.

Address before: Five suojin village Xuanwu District Nanjing 210042 Jiangsu province No. 16

Patentee before: INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140305