A kind of from turps containing the method extracting high-purity natural fenchol fenchol by product
Technical field
The invention belongs to and extract natural essence spices technical field, relate to a kind of from turps containing the method extracting high-purity natural fenchol fenchol by product.
Background technology
Fenchol, also known as fenchyl alcohol, chemistry 1,3,3-trimethylammonium-2-norbornanol by name, the camphor sample smell in oranges and tangerines aromatic, have bitter limette like local flavor, be slightly soluble in water, be dissolved in ethanol, natural mixture is present in white spruce oil and pine tree wet goods.Its main application: be defined as the food spices allowing to use in GB2760-1996.Fenchol is widely used in the banksia rose, hay-scented, oranges and tangerines type or some bouquet type composition and makeup, also can be used for, in the household chemicalss such as antiperspirant, fabric flexibility agent and liquid washing agent, also to carry out esterification with multiple organic acid and obtaining the spices such as fenchol ester.Current fenchol obtains mainly through two approach, and one is produced by organic synthesis, such as, be starting raw material with fenchone, carries out grignard reaction or reduce etc. with alcohol-sodium by ethylmagnesium bromide.Two is by from containing separation and Extraction in the natural essential oil of fenchol.
Turps is one of maximum natural essential oil kind of China, is green renewable resources.It is terpenes mixture mainly, as the α-pinene of monoterpenes, amphene, beta-pinene, myrcene, phellandrene, limonene, to flower umbrella hydrocarbon etc., the longifolene, caryophyllene etc. of sesquiterpenoids.It can not be used as industrial chemicals or perfume base as the monomeric compound that purity is higher, is often separated, therefrom obtained highly purified single-component compound in production.When turps carries out fractionation, the alcohol derivatives component of some monoterpenes can be obtained, as Terpineol 350, phantol, fenchol, can fenchol be extracted from these by-product alcohols.Factory generally adopts the method for fractionation therefrom to produce fenchol, but due to boiling point close, usually obtained fenchol product content is at 50-60%.
Chinese patent application CN102241567A, disclose a kind of method of turps one-step synthesis method fenchol, take turps as raw material, be catalyzer with CHKC-4, the catalysis characteristics of its high reactivity, highly selective is utilized to carry out catalytic isomerization, hydration to firpene (α-pinene, beta-pinene), isomery, hydration one step complete, combined with chemical process by physical method again, utilize the multiple advanced isolation technique assembling such as high-efficiency vacuum fractionation, fusion-crystallization integrated, prepare fenchol yield >=50%, purity is the fenchol product of 99%.
The main Problems existing of technology of existing synthesis fenchol: if be that starting raw material synthesizes with fenchone, then the fenchone of natural origin is less, causes product cost higher; If with firpene carry out isomery water and, then operational path is long, produces the isomers of more fenchol, as borneol, isocamphol etc., adds the difficulty of separation.Existing directly from containing the technology be separated fenchol essential oil, subject matter is need through repeatedly repeated isolation, and energy consumption is high, and usual product purity is not high (< 60%) also.
Summary of the invention
The present invention is in order to overcome the deficiencies in the prior art, and provide a kind of raw material sources extensive, energy-conserving and environment-protective, cost is low, and product purity is high, and what be suitable for large-scale production contains from turps the method extracting high-purity natural fenchol fenchol by product.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of from turps containing the method extracting high-purity natural fenchol fenchol by product, described mainly contains the monoterpene such as phantol, fenchol alcohol mixture containing fenchol by product, wherein the content of fenchol is 50-60%, catalyzed reaction is carried out containing adding an acidic catalyst tosic acid in fenchol by product at turps, after the standing oil reservoir obtained of neutralization is washed, again by rectifying and freezing and crystallizing, last low-temperature centrifugation is separated, and obtains the natural fenchol product of purity > 96%; Concrete operation step is as follows:
(1) catalyzed reaction: will add in reactor containing fenchol by product, adds an acidic catalyst tosic acid of material weight concentration 0.2-3%, and stir, temperature of reaction controls at 50-100 DEG C, reaction times 2-3h;
(2) wash: the reactant that step (1) obtains is cooled to room temperature, then add sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality;
(3) rectifying: the oil reservoir after step (2) being washed drops into rectifying tower, vacuum tightness <-0.09MPa, and tower top temperature controls at 114-120 DEG C, with reflux ratio 4:1-6:1, obtains the fenchol primary products of purity >=80%;
(4) freezing and crystallizing: the fenchol primary products that step (3) obtains are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C;
(5) centrifugation: the fenchol primary products after step (4) crystallization are carried out low-temperature centrifugation separation, the temperature be separated controls as < 0 DEG C, rotating speed > 5000r/min, obtains the product of fenchol content > 96%.
An acidic catalyst tosic acid described in above step (1) is that load is on carrier active carbon, concrete grammar is saturated solution carrier active carbon being put into tosic acid, after dipping 10-20h, filter, then carrier active carbon is put into oven drying, temperature controls at 110-115 DEG C, and time of drying is 2-3h, obtain activated carbon supported after toluenesulphonic acids.
Preferably, above-described carrier active carbon is through the impregnated gac of sulfuric acid, concrete dipping method is that conventional activated carbon to be put into volumetric concentration be 30-60% dilute sulphuric acid, dipping 5-8h, filter, then the gac being adsorbed with dilute sulphuric acid is put into baking oven and toast 2-3h at 120-150 DEG C, obtain carrier active carbon.
Preferably, above-described carrier active carbon is through the impregnated gac of ferric sulfate mixed solution, concrete dipping method is that carrier active carbon is put into ferric sulfate mixed solution, dipping 5-8h, filter, the carrier active carbon water being adsorbed with ferric sulfate is cleaned 2-3 time, is then filtered dry water, put into baking oven and toast 1-2h at 150-180 DEG C, obtain carrier active carbon.
Above-described ferric sulfate mixed solution is the mixed solution of saturated ferrum sulfuricum oxydatum solutum and sulfuric acid, and its weight ratio is saturated ferrum sulfuricum oxydatum solutum: sulfuric acid=2-3: 7-8, and mixed solution is for being acidity.
Relative to prior art, the advantage that the present invention has and positively effect as follows:
1, the present invention is by adding an acidic catalyst tosic acid at turps containing in fenchol by product, utilize the difference of functional group's activity, carry out selective catalysis, remove the isomers close with fenchol boiling point, be separated with freezing and crystallizing by rectifying again, obtain the natural fenchol product of purity > 96%, product purity is high.
2, China is the country that pine resin yield is maximum in the world, utilizes pine gum processing rosin, turps few hundred thousand tonnes of every year, aboundresources, produces active; Turps is terpene mixture, time every year by fractionation purification firpene, also obtains a large amount of sesquiterpenoidss and terpene derivant; The present invention selects in turps and contains fenchol by product as raw material, and wide material sources, cost is low, energy-conserving and environment-protective, is applicable to large-scale production, has good economic benefit and social benefit.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 6.5%, phantol 27%, fenchol 59.3%.
To add in reactor containing fenchol by product, and add an acidic catalyst tosic acid of material weight concentration 0.02Kg, stir, temperature of reaction controls at 50 DEG C, reaction times 3h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 4:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 97.1%.
Embodiment 2:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 4.7%, phantol 30.5%, fenchol 55.2%.
To add in reactor containing fenchol by product, and add an acidic catalyst tosic acid of material weight concentration 0.3Kg, stir, temperature of reaction controls at 100 DEG C, reaction times 2h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 6:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 96.5%.
Embodiment 3:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 3.7%, phantol 27.4%, fenchol 60.3%.
To add in reactor containing fenchol by product, and add an acidic catalyst tosic acid of material weight concentration 0.25Kg, stir, temperature of reaction controls at 80 DEG C, reaction times 3h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 5:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 97.5%.
Embodiment 4:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 2.3%, phantol 29.8%, fenchol 58.4%.Get the saturated solution that gac puts into tosic acid, dipping 20h after, filter, then gac is put into oven drying, temperature controls at 115 DEG C, and time of drying is 2h, obtain activated carbon supported after toluenesulphonic acids.
To add in reactor containing fenchol by product, add material weight concentration 0.02Kg activated carbon supported after toluenesulphonic acids, stir, temperature of reaction controls at 50 DEG C, reaction times 3h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 4:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 96.8%.
Embodiment 5:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 2.3%, phantol 29.8%, fenchol 58.4%.Get the saturated solution that gac puts into tosic acid, dipping 10h after, filter, then gac is put into oven drying, temperature controls at 110 DEG C, and time of drying is 3h, obtain activated carbon supported after toluenesulphonic acids.
To add in reactor containing fenchol by product, add material weight concentration 0.1Kg activated carbon supported after toluenesulphonic acids, stir, temperature of reaction controls at 100 DEG C, reaction times 2h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 6:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 97.0%.
Embodiment 6:
Get that turpentine distilling goes out containing fenchol by product 10.1kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 4.5%, phantol 28.6%, fenchol 53.8%.Getting conventional activated carbon, to put into volumetric concentration be 60% dilute sulphuric acid, and dipping 5h, filters, then the gac being adsorbed with dilute sulphuric acid is put into baking oven and toast 2h at 150 DEG C, obtain carrier active carbon.Carrier active carbon is put into the saturated solution of tosic acid again, after dipping 20h, filter, then put into oven drying by flooding the gac that obtains, temperature controls at 115 DEG C, and time of drying is 2h, obtain activated carbon supported after toluenesulphonic acids.
To add in reactor containing fenchol by product, add material weight concentration 0.3Kg activated carbon supported after toluenesulphonic acids, stir, temperature of reaction controls at 100 DEG C, reaction times 2h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 4:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 96.9%.
Embodiment 7:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 4.5%, phantol 28.6%, fenchol 53.8%.Getting conventional activated carbon, to put into volumetric concentration be 30% dilute sulphuric acid, and dipping 8h, filters, then the gac being adsorbed with dilute sulphuric acid is put into baking oven and toast 3h at 120 DEG C, obtain carrier active carbon.Carrier active carbon is put into the saturated solution of tosic acid again, after dipping 10h, filter, then put into oven drying by flooding the gac that obtains, temperature controls at 110 DEG C, and time of drying is 3h, obtain activated carbon supported after toluenesulphonic acids.
To add in reactor containing fenchol by product, add material weight concentration 0.2Kg activated carbon supported after toluenesulphonic acids, stir, temperature of reaction controls at 50 DEG C, reaction times 3h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 6:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 96.7%.
Embodiment 8:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 8.1%, phantol 30%, fenchol 51.8%.With saturated ferrum sulfuricum oxydatum solutum and sulfuric acid by weight be saturated ferrum sulfuricum oxydatum solutum: sulfuric acid=2: 7 prepares ferric sulfate mixed solution, this mixed solution is for being acidity.Get gac and put into ferric sulfate mixed solution, dipping 5h, filters, the carrier active carbon water being adsorbed with ferric sulfate is cleaned 2 times, is then filtered dry water, put into baking oven and toast 2h at 150 DEG C, obtain carrier active carbon.Carrier active carbon is put into the saturated solution of tosic acid again, after dipping 10h, filter, then put into oven drying by flooding the gac that obtains, temperature controls at 110 DEG C, and time of drying is 3h, obtain activated carbon supported after toluenesulphonic acids.
To add in reactor containing fenchol by product, add material weight concentration 0.02Kg activated carbon supported after toluenesulphonic acids, stir, temperature of reaction controls at 50 DEG C, reaction times 3h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 5:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 97.4%.
Embodiment 9:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 8.1%, phantol 30%, fenchol 51.8%.With saturated ferrum sulfuricum oxydatum solutum and sulfuric acid by weight be saturated ferrum sulfuricum oxydatum solutum: sulfuric acid=3: 7 prepares ferric sulfate mixed solution, this mixed solution is for being acidity.Get gac and put into ferric sulfate mixed solution, dipping 8h, filters, the carrier active carbon water being adsorbed with ferric sulfate is cleaned 3 times, is then filtered dry water, put into baking oven and toast 1h at 180 DEG C, obtain carrier active carbon.Carrier active carbon is put into the saturated solution of tosic acid again, after dipping 20h, filter, then put into oven drying by flooding the gac that obtains, temperature controls at 115 DEG C, and time of drying is 2h, obtain activated carbon supported after toluenesulphonic acids.
To add in reactor containing fenchol by product, add material weight concentration 0.15Kg activated carbon supported after toluenesulphonic acids, stir, temperature of reaction controls at 80 DEG C, reaction times 3h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 4:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 97.7%.
Embodiment 10:
Get that turpentine distilling goes out containing fenchol by product 10kg, proterties is weak yellow liquid, has the camphoraceous fragrance of class, and main component is alpha-terpineol 4.4%, phantol 28.3%, fenchol 53.5%.With saturated ferrum sulfuricum oxydatum solutum and sulfuric acid by weight be saturated ferrum sulfuricum oxydatum solutum: sulfuric acid=2.5: 7.5 prepares ferric sulfate mixed solution, this mixed solution is for being acidity.Get gac and put into ferric sulfate mixed solution, dipping 6h, filters, the carrier active carbon water being adsorbed with ferric sulfate is cleaned 3 times, is then filtered dry water, put into baking oven and toast 1.5h at 160 DEG C, obtain carrier active carbon.Carrier active carbon is put into the saturated solution of tosic acid again, after dipping 15h, filter, then put into oven drying by flooding the gac that obtains, temperature controls at 115 DEG C, and time of drying is 2h, obtain activated carbon supported after toluenesulphonic acids.
To add in reactor containing fenchol by product, add material weight concentration 0.05Kg activated carbon supported after toluenesulphonic acids, stir, temperature of reaction controls at 100 DEG C, reaction times 2h.After catalyzed reaction, the reactant obtained is cooled to room temperature, then adds sig water neutralization, staticly settle, isolate water layer and oil reservoir, isolated oil-reservoir water is washed till neutrality.Oil reservoir is dropped into rectifying tower, and control vacuum tightness <-0.09MPa, tower top temperature controls at 114-120 DEG C, with reflux ratio 6:1, obtains the fenchol primary products of purity >=80%.Again the fenchol primary products obtained are put into freezer crystallization 15h, temperature of ice house control for≤-15 DEG C.Fenchol primary products after crystallization are carried out low-temperature centrifugation separation, and the temperature of separation controls, for < 0 DEG C, rotating speed > 5000r/min, to obtain the product of fenchol content 97.8%.