CN101319168A

CN101319168A - Method for preparing wax tree wax with wax tree seed

Info

Publication number: CN101319168A
Application number: CNA2008101248140A
Authority: CN
Inventors: 汤小林
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-12
Filing date: 2008-06-12
Publication date: 2008-12-10

Abstract

The invention belongs to the technical field of preparing a Japan wax from Japanese wax tree seeds. The invention is characterized in that: a two-time filtration process is adopted for filtration; that is to say, a primary filtration adopts a 400-mesh stainless steel net to carry out extraction filtration through a barrel type filter; a secondary filtration is a composite filtration carried out by a plate frame filter press, filter liquor is firstly filtrated by a piece of tweel cotton filter cloth, then is filtrated by a piece of industrial filter paper and is finally filtrated by a piece of industrial filter cloth, and the temperature during the whole filtration process is controlled from 70 to 80 DEG C; No. 120 solvent naphtha is taken as an extraction solvent, the addition quantity ratio between the extraction solvent and the Japan wax tree seed powder is 3 to 1 (volume ratio), and extraction is carried out for 50-60min when a temperature is raised to 90-100 DEG C; 320-mesh active carbon is taken as a decolorizer, the addition quantity of the active carbon is about 5 percent of the weight of leaching liquor, a decolorizing temperature is controlled from 110 to 115 DEG C, and the active carbon decolorizing time is controlled from 45 to 55min. Due to the technologies of raw material decladding separation, absorbent decolorizing, two-time filtration, etc., a Japan wax product has higher yield, better purity and quality, higher added value and comprehensive utilization rate, lower production cost and more environmental protection.

Description

A kind of method for preparing Japan wax from the Rhus succedanea seed

Technical field

The present invention relates to a kind ofly prepare the method for Japan wax, belong to natural phant wax and extract processing technique field from the Rhus succedanea seed.

Background technology

China lacquer tree place of production to produce raw lacquer, is paid attention to inadequately the processing of lacquer seed always, mainly produces lacquer tree fat and lacquer tree fat oil with machine press for extracting juice method or water-boiling method, and the processing of some local lacquer tree fat and urushoil does not also separate.It only is 15%～20% that this traditional working method goes out the wax rate, and lacquer tree fat content is about 40%～45% in the lacquer seed, so a large amount of lacquer tree fats remains in the lacquer seed.And the lacquer tree fat water content and the impurity level height of local method processing, color is dark green or grayish green, and outward appearance is ugly, and matter is soft, and hand touches satiny, and fishy smell is arranged, mattness, deep processed product cost height, small scale, environmental pollution is big, thereby has restricted the utilization of lacquer tree fat.Be to separate to produce to lacquer tree fat and urushoil at present abroad.No matter be domestic at present or the production method of external Japan wax is milling process, solvent intermittent type lixiviation process, supercritical extraction basically.

Milling process is to separate from raw material by grease by physical pressure, and than " leaching " method, the great advantage of this method is safety, health, pollution-free, do not contain any dissolvent residual, but oil yield is lower.And milling process extremely is not suitable for the process for processing of lacquer tree fat, because lacquer tree fat is solid-state, is difficult to separate the pressure height with lacquer seed slag during squeezing, temperature raises fast, oxide content height, especially pigment content such as moisture content and chlorophyll height, outward appearance is ugly, and the foreign matter content height is unfavorable for precision work.

Solvent intermittent type lixiviation process is meant solvent oil and the oil plant after pulverizing carries out carrying out greasy extracting again behind the thorough mixing.If technology and equipment is not good, the residual solvent that exceeds standard in the product will be detrimental to health.Adopted the intermittent type solvent extration traditionally, concentrated at last and obtain product.Although processing unit is fairly simple, use multiple organic solvent, not only solvent load is big, separates and the cost recovery height, and industrializing implementation has little significance.

Supercritical extraction has its special advantage, but supercritical extraction technique also faces a lot of difficulties: high-tension apparatus investment and maintenance cost are big, and design and fabrication technology requires high, and extraction kettle can't carry out operate continuously, and throughput is lower.Difficult problem on these engineerings still needs further to solve, thereby has limited the practical application of supercritical extraction technique on Japan wax is produced.

Summary of the invention

In order to overcome the deficiency of the production method that has Japan wax now, the present invention is a kind of rational in infrastructure, easy to use, with low cost, and the type of flatting turn continuous extraction method is produced the method for Japan wax.

The technical solution adopted for the present invention to solve the technical problems is: a kind ofly prepare the method for Japan wax from the Rhus succedanea seed, its production technique is as follows: the lacquer tree seed, and------------shelling,------lacquer seed pulp raw material---grinds that---------decoloration and deodorization---filters---thin film evaporation---vacuum concentration---lacquer tree fat ointment---cooling---moulding---granulation---boiled urushi cerotin goods to the vat liquor filtering separation to solvent adverse current continuous extraction to selection by winnowing to drying in washing in screening; In addition lacquer tree fat ointment is sent into the molecular distillation apparatus vacuum outgas and reclaimed residual solvent, isolate oily matter, residuums such as face cream cream and essential oil through the one-level molecular distillation and enter the secondary molecular distillation, isolate products such as lipid acid, Fatty Alcohol(C12-C14 and C12-C18), diprotic acid and glycerin fatty acid ester; Its special character is:

(1) secondary filtration technology is taked in filtration, promptly filters for the first time by a bucket formula strainer, adopts 400 order stainless (steel) wires to carry out suction filtration; Be the plate-and-frame filter press combined filtration for the second time, extremely industrial filter paper filtration is again through industrial filter cloth combined filtration after twill cotton filter cloth filters earlier for filtrate, and whole filtration temperature is controlled at 70-80 ℃;

(2) extracting solvent is 120 ^#Industrial naptha, add-on are 3: 1 (volume ratios) of Rhus succedanea powder of seeds, when temperature rises to 90-100 ℃, extract, and the time is 50-60min;

(3) discoloring agent is 320 order gacs, and its add-on is about 5% of a vat liquor weight, and bleaching temperature is controlled at 110-115 ℃, and the activated carbon decolorizing time is controlled at 45-55min.

The invention has the beneficial effects as follows and adopted the raw material technology such as decolouring of separation, sorbent material and secondary filtration of shelling that the yield of Japan wax product is higher, purity and better quality; Added value and comprehensive utilization ratio are higher; Lower, the more environmental protection of production cost.

Below in conjunction with implementing to further specify the present invention:

Embodiment 1:

With the lacquer tree seed, through screening, washing, air-dry, shell, be crushed to the 200-300 order, promptly get and coat with lacquer seed pulp raw material; Coat with lacquer the seed pulps with 30 kilogram 120 with 900 kilograms ^#Number industrial naptha type continuous extraction method of flatting turn, extraction temperature 90-100 ℃, the continuous countercurrent lixiviate of 50-60 minute extraction time, vat liquor after filtration, add 320 order gacs and decolour (bleaching temperature 110-115 ℃, bleaching time 45-55 minute), bucket formula and Plate Filtration (filter for the first time by a bucket formula strainer, adopt 400 order stainless (steel) wires to carry out suction filtration.Filtrate enters plate-and-frame filter press and carries out the filtration second time, filtrate is filtered through twill cotton filter cloth earlier, filtrate filtered is filtered through industrial filter paper again, filtrate filtered is again through industrial filter cloth combined filtration, whole filtration temperature is controlled at 70-80 ℃), after the thin film evaporation, vacuum concentration, promptly get lacquer tree fat ointment; With the cooling of lacquer tree fat ointment, moulding, granulation, prepare the lacquer tree fat highly finished product again.In addition lacquer tree fat ointment is sent into molecular distillation apparatus, residual solvent is reclaimed in vacuum outgas, isolate oily matter, residuums such as face cream cream and essential oil through the one-level molecular distillation and enter the secondary molecular distillation, isolate products such as lipid acid, Fatty Alcohol(C12-C14 and C12-C18), diprotic acid and glycerin fatty acid ester.120 ^#Number petrolic solvent recycling in airtight pipeline equipment can not pollute environment.Simultaneously, products such as exploitation face cream cream, essential oil, lipid acid, Fatty Alcohol(C12-C14 and C12-C18), diprotic acid and glycerin fatty acid ester improve added value.

Claims

1,------------shelling,------lacquer seed pulp raw material---grinds that---------decoloration and deodorization---filters---thin film evaporation---vacuum concentration---lacquer tree fat ointment---cooling---moulding---granulation---boiled urushi cerotin goods to the vat liquor filtering separation to solvent adverse current continuous extraction to selection by winnowing to drying in washing in screening a kind ofly to prepare the method for Japan wax, production technique: lacquer tree seed from the Rhus succedanea seed; In addition lacquer tree fat ointment is sent into the molecular distillation apparatus vacuum outgas and reclaimed residual solvent, isolate oily matter, residuums such as face cream cream and essential oil through the one-level molecular distillation and enter the secondary molecular distillation, isolate products such as lipid acid, Fatty Alcohol(C12-C14 and C12-C18), diprotic acid and glycerin fatty acid ester; It is characterized in that: