CN105087167A - Extraction process of citrus peel volatile oil and method for recovering foamed plastic by using volatile oil - Google Patents
Extraction process of citrus peel volatile oil and method for recovering foamed plastic by using volatile oil Download PDFInfo
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- CN105087167A CN105087167A CN201510572931.3A CN201510572931A CN105087167A CN 105087167 A CN105087167 A CN 105087167A CN 201510572931 A CN201510572931 A CN 201510572931A CN 105087167 A CN105087167 A CN 105087167A
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- 239000000341 volatile oil Substances 0.000 title claims abstract description 90
- 238000000605 extraction Methods 0.000 title claims abstract description 70
- 229920003023 plastic Polymers 0.000 title claims abstract description 55
- 239000004033 plastic Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 24
- 241000207199 Citrus Species 0.000 title claims abstract description 13
- 235000020971 citrus fruits Nutrition 0.000 title claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 62
- 235000019476 oil-water mixture Nutrition 0.000 claims abstract description 31
- 239000003921 oil Substances 0.000 claims abstract description 28
- 235000019198 oils Nutrition 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 239000000706 filtrate Substances 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 241001672694 Citrus reticulata Species 0.000 claims description 55
- 239000000110 cooling liquid Substances 0.000 claims description 26
- 239000012634 fragment Substances 0.000 claims description 25
- 239000008346 aqueous phase Substances 0.000 claims description 24
- 239000012071 phase Substances 0.000 claims description 20
- 238000001556 precipitation Methods 0.000 claims description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000013019 agitation Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 229930003935 flavonoid Natural products 0.000 claims description 5
- 150000002215 flavonoids Chemical class 0.000 claims description 5
- 235000017173 flavonoids Nutrition 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 abstract description 7
- 235000013305 food Nutrition 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 abstract description 2
- 230000001376 precipitating effect Effects 0.000 abstract 2
- 231100000631 Secondary poisoning Toxicity 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 238000003860 storage Methods 0.000 description 25
- 238000006243 chemical reaction Methods 0.000 description 12
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- 239000000463 material Substances 0.000 description 5
- 238000010009 beating Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000002984 plastic foam Substances 0.000 description 2
- 238000001256 steam distillation Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 206010062717 Increased upper airway secretion Diseases 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 235000013409 condiments Nutrition 0.000 description 1
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- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
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- 230000002110 toxicologic effect Effects 0.000 description 1
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- Fats And Perfumes (AREA)
- Medicines Containing Plant Substances (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention provides an extraction process of citrus peel volatile oil and a method for recovering foamed plastic by using the volatile oil. The extraction process of the citrus peel volatile oil comprises the following steps: squeezing fresh citrus peel through cold pressing at normal temperature to obtain an oil-water mixture and residues; carrying out refluxing extraction on the residues and water, and then carrying out refluxing extraction on layered water phase and residues; carrying out azeotropic refluxing extraction on the oil-water mixture and water, and then carrying out azeotropic refluxing extraction on layered water phase and oil-water mixture; and carrying out oil-water layering on a refluxing coolant so as to obtain oil phase, namely the extracted citrus peel volatile oil. The method for recovering foamed plastic comprises the following steps: cleaning, airing the foamed plastic, and slicing; adding into the citrus peel volatile oil, and stirring for dissolving; adding a precipitating agent for precipitating, and then filtering; recovering filtrate; pressing the precipitated semi-transparent plastic into a slice; drying, and recovering the residual volatile oil; and smashing the dry semi-slice so as to be obtain the recovered regenerated foamed plastic. The raw materials of the regenerated foamed plastic recovered by the recovery method contain no other toxic solvents, so that the foamed plastic can not generate secondary poisoning and pollution to human and environment after being used by foaming and is more important for the foamed plastic for food packaging.
Description
Technical field
The invention belongs to natural product combining environmental resist technology field, relate to a kind of peel of Citrus reticulata Blanco class Extraction Process of Volatile Oil, be i.e. the fresh peel of Citrus reticulata Blanco of thick squeezing or discarded fresh peel of Citrus reticulata Blanco, through oil mixing with water formula backflow separation and purification volatile oil; The invention still further relates to the method for the volatile oil recovery waste plastic foam that this extraction process a kind of obtains.
Background technology
Usually extraction by steam distillation volatile oil (all kinds of essence) is adopted in industrialization technology.It is high to there is temperature in steam distillation, easily makes product color blackening brown, easily makes product change original smell, and finally cause product always to have a bit different from fragrance contained by former plant, energy consumption is high simultaneously, and production cost is high.
Existing porous plastics recovery technology adopts hot melt process (to utilize heating melting, cooling solidification simply, be ground into feed particles reworked material, hygienic condition are poor, and in reworked material, dirt is more), cracking process (utilizing catalyzer Pintsch process to become gasoline) and solvent method (after adopting the similar way dissolution filter mixed of polarity size concentrated, spraying into small-particle reworked material) thus reach the object of recovery.
Summary of the invention
The object of this invention is to provide a kind of energy consumption and the low peel of Citrus reticulata Blanco class essential oil extraction method of production cost, the peel of Citrus reticulata Blanco class volatile oil of purifying can be obtained.
Another object of the present invention is to provide the method for the volatile oil recovery porous plastics that a kind of aforesaid method obtains.
For achieving the above object, the technical solution adopted in the present invention is: a kind of peel of Citrus reticulata Blanco class Extraction Process of Volatile Oil, specifically carries out according to the following steps:
Step 1: the fresh citrus skin of normal temperature cold press, forms oil-water mixture and residue;
Step 2: by weight, get residue 1 ~ 3 part and 5 ~ 15 parts, water respectively, refluxing extraction, makes the first reflux cooling liquid profit layering; By weight, get the first aqueous phase 5 ~ 15 parts that residue 1 ~ 3 part obtains with profit layering respectively, then carry out refluxing extraction, the second reflux cooling liquid obtained carries out profit layering, recycles the aqueous phase that profit layering obtains, until residue is finished;
By weight 1 ︰ 2, get oil-water mixture and water respectively, azeotropic refluxing extraction, the 3rd reflux cooling liquid obtained carries out profit layering; By weight 1 ︰ 2, get the second aqueous phase that oil-water mixture and layering obtain respectively, again carry out azeotropic refluxing extraction, the 4th reflux cooling liquid obtained carries out profit layering; Recycle the aqueous phase that profit layering obtains, until oil-water mixture is finished;
The oil phase that the layering of reflux cooling liquid profit obtains is the peel of Citrus reticulata Blanco class volatile oil of extraction.
Another technical scheme of the present invention is: a kind of method reclaiming porous plastics with the peel of Citrus reticulata Blanco class volatile oil that above-mentioned extraction process is extracted, and specifically carries out according to the following steps:
Step 1: clean, dry porous plastics, cut into fragment;
Step 2: by weight, get the fragment in 5 ~ 7 parts of peel of Citrus reticulata Blanco class volatile oil, 1 ~ 3 part of precipitation agent and 3 ~ 5 parts of steps 1, adding under condition while stirring, fragment is added in peel of Citrus reticulata Blanco class volatile oil, Keep agitation, until fragment dissolves completely, forms the viscous fluid of even clear; Add precipitation agent, stir, precipitation 60 ~ 120min, filter, reclaim filtrate, the translucent plastics of precipitation are pressed into thin slice, and dried recovered remains volatile oil, and dried translucent plastic tab is broken into small-particle, reclaim regenerated foamed plastic.
The invention has the advantages that and utilize pure natural peel of Citrus reticulata Blanco class volatile oil to reclaim porous plastics; discarded citrus skin can either be recycled; search out again the toxicological harmless of protection of the environment solution waste plastic foam and remain recovery method; simultaneously; other noxious solvent not residual in the regenerated foamed plastic raw material reclaimed; foaming uses and can not produce secondary murder by poisoning and pollution to human and environment again, and the expanded plastic in particular for food product pack seems even more important.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
The invention provides a kind of extraction process of peel of Citrus reticulata Blanco class volatile oil, to gather or to collect cleaned fresh peel of Citrus reticulata Blanco for raw material, specifically carry out according to the following steps:
Step 1: continue through screw extrusion type oil press zhai normal temperature cold press by gathering or collecting cleaned fresh citrus skin, be separated, form oil-water mixture and residue, oil-water mixture is kept in stainless steel hold tank for subsequent use;
Step 2: by weight, get residue 1 ~ 3 part and 5 ~ 15 parts, water respectively, refluxing extraction 60 ~ 120min at 95 DEG C of temperature in the first multi-function extractor (2000L), first reflux cooling liquid flows in the first constant voltage temporary storage tank, profit layering, the first aqueous phase that layering obtains to flow back in the first multi-function extractor extraction and isolation volatile oil again again by variable valve adjust flux, namely by weight, first aqueous phase 5 ~ 15 parts, residue 1 ~ 3 part, refluxing extraction 60 ~ 120min at 95 DEG C of temperature in the first multi-function extractor, second reflux cooling liquid flows in the first constant voltage temporary storage tank and carries out layering, when the first oil phase in the first constant voltage temporary storage tank reaches relief valve port place, the first oil phase is flow in volatile oil finished pot and deposits, after refluxing extraction completes, stop heating, from the first multi-function extractor, release grain slag mixture filter, concentrated filtrate, obtain the concentrated solution containing effective constituents such as peel of Citrus reticulata Blanco flavonoids, this concentrated solution can be used as Chinese medicine intermediate feed.
By weight 1 ︰ 2, get oil-water mixture and water respectively, azeotropic refluxing extraction at 95 DEG C of temperature in the second multifunctional reaction still (2000L), 3rd reflux cooling liquid flows in the second constant voltage temporary storage tank, profit layering, the second aqueous phase that layering obtains to flow back in the second multifunctional reaction still extraction and isolation volatile oil again again by variable valve adjust flux size, namely by weight 1 ︰ 2, get oil-water mixture and the second aqueous phase respectively, azeotropic refluxing extraction at 95 DEG C of temperature in the second multifunctional reaction still (2000L), 4th reflux cooling liquid flows in the second constant voltage temporary storage tank, profit layering, when the oil phase in the second constant voltage temporary storage tank reaches relief valve port place, flow in volatile oil finished pot and deposit,
The oil phase flow in volatile oil finished pot is the peel of Citrus reticulata Blanco class volatile oil of extraction.
Existing essential oil extraction method directly passes into water vapor in material pot, utilize the volatile oil in water vapor direct heating material, and collect together after volatile matter is cooled, because the temperature of water vapor is higher, the volatile oil color and luster of extraction is easily made to become chocolate, easily make product change original smell, finally cause the fragrance of product always to have a bit different from fragrance contained by former plant, and energy consumption is high, production cost is high.Extracting method of the present invention utilizes screw arbor type oil press first to squeeze out volatile oil in fresh peel of Citrus reticulata Blanco and moisture mixture, and form oil-water mixture, then, 1 ︰ 2 by weight, this oil-water mixture and water are added in extractor, extractor chuck is utilized to heat, make water-oil phase azeotropic (boiling point of Lanzhou water 94 DEG C), by the heat of the boiling hyperabsorption of water, avoid volatile oil variable color spoiled, the gas produced during azeotropic is cooled in constant voltage temporary storage tank by condenser, when oil phase reaches relief valve port place, deposit from overflowing in volatile oil finished pot, the volatile oil fragrance obtained is pure, maintain the fragrance of former peel of Citrus reticulata Blanco volatile oil.
The inventive method first will gather or collect the fresh peel of Citrus reticulata Blanco that (cleaning) comes, by screw extrusion type oil press zhai cold press, again the oil-water mixture of squeezing out and residue are added in the extractor filling certain water gaging respectively and carry out being back to constant voltage surge tank extraction purification, oil-water mixture extraction purification rate reaches 98.87%, obtain peel of Citrus reticulata Blanco class volatile oil, peel of Citrus reticulata Blanco class volatile oil purity vapor-phase chromatography detects and reaches 99.27%, a part in this peel of Citrus reticulata Blanco class volatile oil is sold as volatile oil, and another part is used for the recovery of lower porous plastics.
So, present invention also offers a kind of method reclaiming used foamed plastics with above-mentioned obtained peel of Citrus reticulata Blanco class volatile oil, be specially:
Step 1: cleaned by the porous plastics of collection, dry, cuts into block footpath 3 ~ 5cm fragment;
Step 2: by weight, get the fragment in 5 ~ 7 parts of peel of Citrus reticulata Blanco class volatile oil, 1 ~ 3 part of precipitation agent and 3 ~ 5 parts of steps 1, peel of Citrus reticulata Blanco class volatile oil is joined in 1000L dissolving vessel, adding under condition while stirring, fragment is added this dissolving vessel, Keep agitation, until fragment dissolves completely, forms the viscous fluid of even clear; Viscous fluid is pumped into setting tank, add precipitation agent, after slowly stirring, stop stirring, filter after precipitation 60 ~ 120min, reclaim filtrate, the translucent plastics of precipitation are sent in roller type tabletting machine and are pressed into thin slice, and be sent in horizontal solvent recuperation loft drier, dried recovered remains volatile oil, dried translucent plastic tab breaks into small-particle through beating crusher, reclaim regenerated foamed plastic.
Precipitation agent adopts acetone, methyl alcohol, ethanol or propyl alcohol.
Peel of Citrus reticulata Blanco class volatile oil is utilized to reclaim porous plastics, for the foam plastic product of food, fruit, vegetables, fishery products packaging, peel of Citrus reticulata Blanco class volatile oil itself is pure natural and is taste Chinese medicine, there is dehumidifying, relieving asthma, resolve phlegm effect, remain food, fruit, vegetables, fishery products packaging foam plastic product in human non-toxic's side effect.And the rate of recovery of used foamed plastics reaches more than 95%.
The domestic technology not reclaiming used foamed plastics with peel of Citrus reticulata Blanco class volatile oil at present, reason is very simple: 1) domestic system and the custom not having Waste sorting recycle; 2) peel of Citrus reticulata Blanco class recycling no one does, and the oranges and tangerines place of production is only for Chinese medicine dried orange peel and condiment skin use, and it is high that peel of Citrus reticulata Blanco class recycles the large cost of workload, do not have timely recovery system, and mass-producing wanted by extraction volatile oil otherwise cost is very high.
embodiment 1
Continue through screw extrusion type oil press zhai normal temperature cold press by gathering or collecting cleaned fresh citrus skin, be separated, form oil-water mixture and residue, oil-water mixture is kept in stainless steel hold tank for subsequent use; By weight, get residue 1 part and 5 parts, water respectively, refluxing extraction 60min at 95 DEG C of temperature in the first multi-function extractor (2000L), first reflux cooling liquid flows in the first constant voltage temporary storage tank, profit layering, the first aqueous phase that layering obtains to flow back in the first multi-function extractor extraction and isolation volatile oil again again by variable valve adjust flux, namely by weight, first aqueous phase 5 parts, residue 1 part, refluxing extraction 60min at 95 DEG C of temperature in the first multi-function extractor, the second reflux cooling liquid flows in the first constant voltage temporary storage tank and carries out layering; When the first oil phase in the first constant voltage temporary storage tank reaches relief valve port place, the first oil phase is flow in volatile oil finished pot and deposits; After refluxing extraction completes, stop heating, from the first multi-function extractor, release grain slag mixture filter, concentrated filtrate, obtain the concentrated solution containing effective constituents such as peel of Citrus reticulata Blanco flavonoids, this concentrated solution can be used as Chinese medicine intermediate feed.Oil-water mixture and water is got respectively by weight 1 ︰ 2, azeotropic refluxing extraction at 95 DEG C of temperature in the second multifunctional reaction still (2000L), 3rd reflux cooling liquid flows in the second constant voltage temporary storage tank, profit layering, the second aqueous phase that layering obtains to flow back in the second multifunctional reaction still extraction and isolation volatile oil again again by variable valve adjust flux size, namely by weight 1 ︰ 2, get oil-water mixture and the second aqueous phase respectively, azeotropic refluxing extraction at 95 DEG C of temperature in the second multifunctional reaction still (2000L), 4th reflux cooling liquid flows in the second constant voltage temporary storage tank, profit layering, when the oil phase in the second constant voltage temporary storage tank reaches relief valve port place, flow in volatile oil finished pot and deposit.The oil phase flow in volatile oil finished pot is the peel of Citrus reticulata Blanco class volatile oil of extraction.
If reclaim used foamed plastics with this obtained peel of Citrus reticulata Blanco class volatile oil, then: cleaned by the porous plastics of collection, dry, cut into block footpath 3 ~ 5cm fragment; By weight, get 5 parts of peel of Citrus reticulata Blanco class volatile oil, 1 part of acetone and 3 parts of fragments, peel of Citrus reticulata Blanco class volatile oil is joined in 1000L dissolving vessel, adding under condition while stirring, fragment is added this dissolving vessel, Keep agitation, until fragment dissolves completely, forms the viscous fluid of even clear; Viscous fluid is pumped into setting tank, add acetone, after slowly stirring, stop stirring, filter after precipitation 60min, reclaim filtrate, the translucent plastics of precipitation are sent in roller type tabletting machine and are pressed into thin slice, and be sent in horizontal solvent recuperation loft drier, dried recovered remains volatile oil, dried translucent plastic tab breaks into small-particle through beating crusher, reclaim regenerated foamed plastic.
embodiment 2
Continue through screw extrusion type oil press zhai normal temperature cold press by gathering or collecting cleaned fresh citrus skin, be separated, form oil-water mixture and residue, oil-water mixture is kept in stainless steel hold tank for subsequent use; By weight, get residue 3 parts and 15 parts, water respectively, refluxing extraction 120min at 95 DEG C of temperature in the first multi-function extractor (2000L), first reflux cooling liquid flows in the first constant voltage temporary storage tank, profit layering, the first aqueous phase that layering obtains to flow back in the first multi-function extractor extraction and isolation volatile oil again again by variable valve adjust flux, namely by weight, first aqueous phase 15 parts, residue 3 parts, refluxing extraction 120min at 95 DEG C of temperature in the first multi-function extractor, the second reflux cooling liquid flows in the first constant voltage temporary storage tank and carries out layering; When the first oil phase in the first constant voltage temporary storage tank reaches relief valve port place, the first oil phase is flow in volatile oil finished pot and deposits; After refluxing extraction completes, stop heating, from the first multi-function extractor, release grain slag mixture filter, concentrated filtrate, obtain the concentrated solution containing effective constituents such as peel of Citrus reticulata Blanco flavonoids, this concentrated solution can be used as Chinese medicine intermediate feed.Oil-water mixture and water is got respectively by weight 1 ︰ 2, azeotropic refluxing extraction at 95 DEG C of temperature in the second multifunctional reaction still (2000L), 3rd reflux cooling liquid flows in the second constant voltage temporary storage tank, profit layering, the second aqueous phase that layering obtains to flow back in the second multifunctional reaction still extraction and isolation volatile oil again again by variable valve adjust flux size, namely by weight 1 ︰ 2, get oil-water mixture and the second aqueous phase respectively, azeotropic refluxing extraction at 95 DEG C of temperature in the second multifunctional reaction still (2000L), 4th reflux cooling liquid flows in the second constant voltage temporary storage tank, profit layering, when the oil phase in the second constant voltage temporary storage tank reaches relief valve port place, flow in volatile oil finished pot and deposit.The oil phase flow in volatile oil finished pot is the peel of Citrus reticulata Blanco class volatile oil of extraction.
If reclaim used foamed plastics with this obtained peel of Citrus reticulata Blanco class volatile oil, then: cleaned by the porous plastics of collection, dry, cut into block footpath 3 ~ 5cm fragment; By weight, get 7 parts of peel of Citrus reticulata Blanco class volatile oil, 3 parts of methyl alcohol and 5 parts of fragments, peel of Citrus reticulata Blanco class volatile oil is joined in 1000L dissolving vessel, adding under condition while stirring, fragment is added this dissolving vessel, Keep agitation, until fragment dissolves completely, forms the viscous fluid of even clear; Viscous fluid is pumped into setting tank, add acetone, after slowly stirring, stop stirring, filter after precipitation 120min, reclaim filtrate, the translucent plastics of precipitation are sent in roller type tabletting machine and are pressed into thin slice, and be sent in horizontal solvent recuperation loft drier, dried recovered remains volatile oil, dried translucent plastic tab breaks into small-particle through beating crusher, reclaim regenerated foamed plastic.
embodiment 3
Continue through screw extrusion type oil press zhai normal temperature cold press by gathering or collecting cleaned fresh citrus skin, be separated, form oil-water mixture and residue, oil-water mixture is kept in stainless steel hold tank for subsequent use; By weight, get residue 2 parts and 10 parts, water respectively, refluxing extraction 90min at 95 DEG C of temperature in the first multi-function extractor (2000L), first reflux cooling liquid flows in the first constant voltage temporary storage tank, profit layering, the first aqueous phase that layering obtains to flow back in the first multi-function extractor extraction and isolation volatile oil again again by variable valve adjust flux, namely by weight, first aqueous phase 10 parts, residue 2 parts, refluxing extraction 90min at 95 DEG C of temperature in the first multi-function extractor, the second reflux cooling liquid flows in the first constant voltage temporary storage tank and carries out layering; When the first oil phase in the first constant voltage temporary storage tank reaches relief valve port place, the first oil phase is flow in volatile oil finished pot and deposits; After refluxing extraction completes, stop heating, from the first multi-function extractor, release grain slag mixture filter, concentrated filtrate, obtain the concentrated solution containing effective constituents such as peel of Citrus reticulata Blanco flavonoids, this concentrated solution can be used as Chinese medicine intermediate feed.Oil-water mixture and water is got respectively by weight 1 ︰ 2, azeotropic refluxing extraction at 95 DEG C of temperature in the second multifunctional reaction still (2000L), 3rd reflux cooling liquid flows in the second constant voltage temporary storage tank, profit layering, the second aqueous phase that layering obtains to flow back in the second multifunctional reaction still extraction and isolation volatile oil again again by variable valve adjust flux size, namely by weight 1 ︰ 2, get oil-water mixture and the second aqueous phase respectively, azeotropic refluxing extraction at 95 DEG C of temperature in the second multifunctional reaction still (2000L), 4th reflux cooling liquid flows in the second constant voltage temporary storage tank, profit layering, when the oil phase in the second constant voltage temporary storage tank reaches relief valve port place, flow in volatile oil finished pot and deposit.The oil phase flow in volatile oil finished pot is the peel of Citrus reticulata Blanco class volatile oil of extraction.
If reclaim used foamed plastics with this obtained peel of Citrus reticulata Blanco class volatile oil, then: cleaned by the porous plastics of collection, dry, cut into block footpath 3 ~ 5cm fragment; By weight, get 6 parts of peel of Citrus reticulata Blanco class volatile oil, 2 parts of ethanol and 4 parts of fragments, peel of Citrus reticulata Blanco class volatile oil is joined in 1000L dissolving vessel, adding under condition while stirring, fragment is added this dissolving vessel, Keep agitation, until fragment dissolves completely, forms the viscous fluid of even clear; Viscous fluid is pumped into setting tank, add acetone, after slowly stirring, stop stirring, filter after precipitation 90min, reclaim filtrate, the translucent plastics of precipitation are sent in roller type tabletting machine and are pressed into thin slice, and be sent in horizontal solvent recuperation loft drier, dried recovered remains volatile oil, dried translucent plastic tab breaks into small-particle through beating crusher, reclaim regenerated foamed plastic.
embodiment 4
Peel of Citrus reticulata Blanco class volatile oil is obtained by the method for embodiment 1.Dissolve used foamed plastics by the method for embodiment 1 again, form the viscous fluid of even clear; Viscous fluid is pumped into setting tank, adds propyl alcohol, then make the regenerated foamed plastic of recovery by the method for embodiment 1.
Claims (6)
1. a peel of Citrus reticulata Blanco class Extraction Process of Volatile Oil, is characterized in that, this extraction process is specifically carried out according to the following steps:
Step 1: the fresh citrus skin of normal temperature cold press, forms oil-water mixture and residue;
Step 2: by weight, get residue 1 ~ 3 part and 5 ~ 15 parts, water respectively, refluxing extraction, makes the first reflux cooling liquid profit layering; By weight, get the first aqueous phase 5 ~ 15 parts that residue 1 ~ 3 part obtains with profit layering respectively, then carry out refluxing extraction, the second reflux cooling liquid obtained carries out profit layering, recycles the aqueous phase that profit layering obtains, until residue is finished;
By weight 1 ︰ 2, get oil-water mixture and water respectively, azeotropic refluxing extraction, the 3rd reflux cooling liquid obtained carries out profit layering; By weight 1 ︰ 2, get the second aqueous phase that oil-water mixture and layering obtain respectively, again carry out azeotropic refluxing extraction, the 4th reflux cooling liquid obtained carries out profit layering; Recycle the aqueous phase that profit layering obtains, until oil-water mixture is finished;
The oil phase that the layering of reflux cooling liquid profit obtains is the peel of Citrus reticulata Blanco class volatile oil of extraction.
2. peel of Citrus reticulata Blanco class Extraction Process of Volatile Oil as claimed in claim 1, is characterized in that, the refluxing extraction in described step 2: refluxing extraction 60 ~ 120min at 95 DEG C of temperature.
3. peel of Citrus reticulata Blanco class Extraction Process of Volatile Oil as claimed in claim 1, is characterized in that, in described step 2, after completing by the refluxing extraction that residue carries out, stop heating, filter grain slag mixture, concentrated filtrate, obtains the concentrated solution containing effective constituents such as peel of Citrus reticulata Blanco flavonoids.
4. reclaim a method for porous plastics with the peel of Citrus reticulata Blanco class volatile oil that extraction process according to claim 1 is extracted, it is characterized in that, this recovery method specifically carries out according to the following steps:
Step 1: clean, dry porous plastics, cut into fragment;
Step 2: by weight, get the fragment in 5 ~ 7 parts of peel of Citrus reticulata Blanco class volatile oil, 1 ~ 3 part of precipitation agent and 3 ~ 5 parts of steps 1, adding under condition while stirring, fragment is added in peel of Citrus reticulata Blanco class volatile oil, Keep agitation, until fragment dissolves completely, forms the viscous fluid of even clear; Add precipitation agent, stir, precipitation 60 ~ 120min, filter, reclaim filtrate, the translucent plastics of precipitation are pressed into thin slice, and dried recovered remains volatile oil, and dried translucent plastic tab is broken into small-particle, reclaim regenerated foamed plastic.
5. the method reclaiming porous plastics as claimed in claim 4, is characterized in that, the precipitation agent in described step 2 adopts acetone, methyl alcohol, ethanol or propyl alcohol.
6. the method reclaiming porous plastics as claimed in claim 4, it is characterized in that, in described step 1, the block footpath of fragment is 3 ~ 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572931.3A CN105087167B (en) | 2015-09-10 | 2015-09-10 | Orange peel class Extraction Process of Volatile Oil and the method for recycling foamed plastics with volatile oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572931.3A CN105087167B (en) | 2015-09-10 | 2015-09-10 | Orange peel class Extraction Process of Volatile Oil and the method for recycling foamed plastics with volatile oil |
Publications (2)
| Publication Number | Publication Date |
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| CN105087167A true CN105087167A (en) | 2015-11-25 |
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