CN106267882A - A kind of microwave coupling leach extraction method and device - Google Patents

A kind of microwave coupling leach extraction method and device Download PDF

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Publication number
CN106267882A
CN106267882A CN201610749954.1A CN201610749954A CN106267882A CN 106267882 A CN106267882 A CN 106267882A CN 201610749954 A CN201610749954 A CN 201610749954A CN 106267882 A CN106267882 A CN 106267882A
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microwave
canister
end cover
tank
extraction method
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CN106267882B (en
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李斌
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0215—Solid material in other stationary receptacles
    • B01D11/0253—Fluidised bed of solid materials
    • B01D11/0257—Fluidised bed of solid materials using mixing mechanisms, e.g. stirrers, jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0066—Stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122—Incoherent waves
    • B01J19/126—Microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1868—Stationary reactors having moving elements inside resulting in a loop-type movement
    • B01J19/1875—Stationary reactors having moving elements inside resulting in a loop-type movement internally, i.e. the mixture circulating inside the vessel such that the upwards stream is separated physically from the downwards stream(s)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00139—Controlling the temperature using electromagnetic heating
    • B01J2219/00141—Microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1209—Features relating to the reactor or vessel
    • B01J2219/1221—Features relating to the reactor or vessel the reactor per se
    • B01J2219/1239—Means for feeding and evacuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1248—Features relating to the microwave cavity
    • B01J2219/1251—Support for the reaction vessel
    • B01J2219/126—Support for the reaction vessel in the form of a closed housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1287—Features relating to the microwave source
    • B01J2219/129—Arrangements thereof
    • B01J2219/1296—Multiple sources

Abstract

A kind of microwave coupling leach extraction method and device; the radiative cylinder that by upper end cover, is furnished with in the canister of microwave device, bottom end cover and tank, reflecting drum, screw machine, stirring paddle are constituted; in formation tank, collection slurry is polymorphic circulates and the coupling leaching mode of microwave uniform energy regenerative comprehensively; improve extraction rate and yield; time-saving energy-saving lowers consumption, and adapts to the demand that scale is extracted.

Description

A kind of microwave coupling leach extraction method and device
Technical field
The invention belongs to plant functional component and extract category, be specifically related to a kind of microwave coupling leach extraction method and device.
Background technology
Plant is the important Renewable resource that human society is depended on for existence, is also industrial production base raw material, to its institute The functional component extraction and application contained, is the industry most common methods such as food, pharmacy, health care, biochemistry.
Impregnate, ooze, the conventional extraction process such as decoction still uses in continuity, it is not necessary to state more, and microwave method, ultrasonic method, super Some novel technical methods such as comminuting method, demonstrate the prospect of being widely applied and superiority in terms of plant extract, but only with regard to microwave For method, the most mostly belong to laboratory and process purposes on a small quantity, and be not suitable with the needs of large-scale production, such as a certain microwave method technology, micro- Ripple device is placed on tank skin, stretches into the slurry of about 50mm owing to microwave energy can only penetrate, therefore tank holds the least, and for example another item microwave method skill Art, it is additionally provided with microwave device outside big tank appearance, connects the two with the four fluorine tube of 50mm, carries out the flowing radiation extraction between tank, device, Its treating capacity is limited by the minor diameter of four fluorine tube, still cannot realize big throughput requirements, and the microwave energy damage that declines is bigger.
Summary of the invention
Microwave technology is increasingly mature, and purposes expands the most therewith, and its radiation can penetrate plant tissue, cause polar molecule with The speed of per second hundreds of millions times does reversal campaign, thus produces the vibration of key, tear and interparticle collision, friction, simultaneously It is quickly generated a large amount of heat energy and causes cell wall rupture, the functional component (mostly being polarity, active component) of inside plant tissues With release, the solvent less by dielectric constant dissolves.
Follow flat turn stirring-type extraction pot for many years most widely used, it is promoted, is allowed to adapt to microwave The characteristic of energy regenerative, and utilize tank body circumferential wall to be combined with microwave device large area, play the function of two big mature technologies to greatest extent, Fully realize coupling effect, thus improve speed and the yield of extraction, and reduce the impurity in the consumption of solvent and leachable, reach To the purpose that time-saving energy-saving consumption reduction is high-quality.
The technical scheme is that: the canister by the upper end cover of dome-shaped, being furnished with microwave device, funnel shaped bottom end cover and Radiative cylinder in tank, screw machine, sieve plate, reflecting drum, stirring paddle constitute this apparatus main body structure, form collection in tank slurry is polymorphic and follow The dynamic coupling leaching mode with microwave uniform energy regenerative comprehensively of circulation.
The outer upper of described upper end cover (1), centre bit is provided with a bearing (101), and position, side is provided with feeding mouth (102), separately Side is provided with temperature, concentration, three kinds of sensors of liquid, is provided with ring sparger (104) and is connected with external water source inside ring upper end cover, Convenient cleaning.
Described canister (2), lower port is provided with flange, and upper port becomes vertical concentric circle to be tightly connected with upper end cover, microwave device (201) it is many and is distributed in outside this canister circumferential wall, can single or simultaneously energy regenerative in tank.Described radiative cylinder (202) diameter Be slightly less than canister, material to microwave, concentrically circle be placed in canister, and and canister between form airtight microwave energy-feeding chuck (204).Slightly descend position in canister upper port, wear canister wall and radiation barrel, be laterally provided with the overflow valve (203) of included filter screen, And connect with the middle storage tank separately set.
Described bottom end cover (3), upper port is tightly connected with canister vertical concentric through flange, lower port through short tube (301) with Residual cake valve (302) connects, and this short tube side is connected with tapping valve (303) through the pipeline of included filter screen, and opposite side is through solvent valve (304) connect with the solvent tank separately set.
Described screw machine (4), its axis (401) is put on the end cap center of circle and is coupled, under this axle with the bearing location in a bearing End stretches in bottom end cover short tube, and with a certain distance from residual cake valve, ring axis relevant position is fixed with flight, and this sheet periphery is provided with set Pipe (402), its lower end mouth keeps respective distance with bottom end cover short tube, and sleeve upper end mouth is slightly below on radiative cylinder along height, and Fixing with the internal diameter of bamboo hat shape sieve plate (403) and be connected, this sieve plate external diameter is fixing with the upper port of cylindric reflecting drum (404) again to be connected Connecing, the lower port of this reflecting drum is slightly above the lower edge of radiative cylinder.Above-mentioned sleeve pipe, sieve plate, reflecting drum are connected into integrative-structure, And support fixing by each three support bars in upper and lower part with canister concentrically circle, constitute between this reflecting drum and described radiative cylinder The concentric circular passageway (205) opened wide up and down, this passageway is the passage that slurry from up to down flows, and is again 360 degree of full sides of microwave The region of position radiation.Press close to sieve plate bezel facet, be provided with blade (405) in the two panels of symmetry, fix with axis through link rod, press close to The medial slope of bottom end cover, is provided with blade (406) under the two panels of symmetry, fixes with axis through link rod.
The feature of described microwave coupling leaching mode is: after granularity 30～80 mesh, the slurry of solid-to-liquid ratio 1:5 enter tank, quilt Lower blade (406) and screw machine (4) stirring promote, up along sleeve (402), go out upper port surrounding and overflow, through sieve plate (403) Filtering, major part liquid is descending from mesh, and solid particle and a small amount of liquid are ordered about by upper blade (405), under passageway (205) OK, accept microwave radiation simultaneously.Polar molecule (mainly active component) heats up with the very fast motion of alternating electric field and causes breaking cellular wall release Solute, and solvent is also into the intercellular layer ruptured and solute contact lysis, at the flowing of continuously size circulations and microwave spoke During penetrating, solute, solvent constantly mix and heat up, and accelerate again mass transfer diffusion, dissolve more abundant.
In said process, under the solid particle that dielectric constant is bigger is driven in passageway (205) slowly the most continually Heavy, uniformly accept microwave energy, and surplus microwave energy is reflected cylinder (404) reflection, be folded to again act on solid particle, and dielectric The liquid that constant is less, major part always flows in the region not having microwave energy, and the slurry after tank body lower part with radiation Material mixing mixes, and the most at utmost make use of microwave energy and mechanical agitation power and tank volume, the most also has concurrently temperature Spend higher solid particle and constantly cool down the effect among the solvent that temperature is relatively low.
When dissolving reaches to a certain degree (being primary index with concentration value, temperature value is the second index), through solvent valve (304) to Pot bottom injects new solvent, and the saturation extract overflow valve (203) from tank top is discharged, and novel solvent is the most molten to solute Solve, and in tank, slurry be under the common effect of upper and lower stirring paddle and the factor such as screw machine and free subsidence, there occurs flat turn, on The multiple dynamic streams such as liter, sinking, oblique, turbulence, the effect of microwave intensification breaking cellular wall in addition so that achieve between solute, solvent and fill The mixing mass transfer divided dissolves.
The process that above-mentioned injection novel solvent, overflow are extracted can be repeated several times, in time being considered as substantially carrying most till, totally solid Liquor ratio is generally 1:10～30(mass meter).
Present invention have the advantages that
1, integrate microwave frequency measurment and stirring and dissolving function, improve leaching rates and yield, time-saving energy-saving lowers consumption, and promotes Product qualities.
2, close solid particle runner and microwave radiation region is integrated, make use of tank volume and microwave energy to greatest extent Amount, can form scale disposal ability.
3, widely used flat turn alr mode with the addition of vertical-lift and filter separation function, being collectively forming multiple Dynamically stream, solute is more fully mixed with solvent, beneficially mass transfer diffusion.
Accompanying drawing explanation
Fig. 1 is this apparatus structure schematic diagram.
Label in figure: 1 upper end cover, 101 bearings, 102 feeding mouths, 103 monitoring positions, 104 ring spargers, 2 canisters, 201 micro- Ripple device, 202 radiative cylinders, 203 overflow valves, 204 chucks, 205 passageways, 3 bottom end covers, 301 short tubes, 302 residual cake valves, 303 tapping valves, 304 solvent valves, 4 screw machines, 401 axis, 402 sleeve pipes, 403 sieve plates, 404 reflecting drums, blade, 406 times blades on 405.
Detailed description of the invention
It is described further with preference below in conjunction with the accompanying drawings, is not intended to the present invention.
Example 1, chestnut shell extracts brown pigment.
100Kg chestnut shell is crushed to 30 mesh and enters tank, based on solid-to-liquid ratio 1:5(mass) add the deionized water of 80 DEG C, start Screw machine 3 dextrorotation stirring infiltration 15min after, open microwave device 201, with 100W/Kg(dry) power density present in tank Can radiate, when marquis's concentration of slurry >=1% or slurry temperature 85 DEG C, close microwave device, adjust screw machine and rotate the most at a slow speed, simultaneously Opening overflow valve 203 and solvent valve 304,80 DEG C of new deionized waters inject tank from pot bottom, the saturated rich liquor in arch-roof tank Arranging to the middle storage tank separately set from top, when concentration is down to 0.6%, close solvent valve and overflow valve, screw machine recovers forward rotation Turn, when being again started up microwave device energy regenerative, marquis's concentration of slurry >=0.8% or slurry temperature 90 DEG C, repeat above-mentioned flooding process, when dense When degree is down to 0.4%, terminating overflow, screw machine dextrorotation, third time starts microwave energy-feeding, when Hou Wendu rises to 95 DEG C, closes microwave Device, after continuing insulated and stirred 10min, by screw machine derotation at a slow speed, opens tapping valve 303 discharge opeing simultaneously, when flow is tiny, beats Open residual cake valve 302 deslagging, after emptying, close screw machine, tapping valve, residual cake valve, can pan feeding again, produce continuously.
Above-mentioned three extracting solution 1500Kg altogether, obtains food grade colorant dry powder 15.3Kg after later process is refined.
Example 2, Semen Castaneae bud extracts tannin.
100Kg Semen Castaneae bud is crushed to 80 mesh and enters tank, based on solid-to-liquid ratio 1:5(mass) add the deionized water of 75 DEG C, start Screw machine 3 dextrorotation stirring infiltration 10min after open microwave device 201, with 100W/Kg(dry) power density energy regenerative in tank Radiation, closes microwave device when marquis's concentration of slurry >=1.2% or slurry temperature 80 DEG C, adjust screw machine derotation at a slow speed, open simultaneously and overflow Stream valve 203 and solvent valve 304,75 DEG C of new deionized waters inject tank from pot bottom, and the saturated rich liquor in arch-roof tank is from top Arranging to the middle storage tank separately set, close solvent valve and overflow valve when concentration is down to 0.8%, screw machine recovers dextrorotation, is again started up micro- Repeat above-mentioned flooding process when ripple device energy regenerative, marquis's concentration of slurry >=0.9% or slurry temperature 85 DEG C, tie when concentration is down to 0.6% Shu Yiliu, recovers dextrorotation, energy regenerative process, and row flooding process again when marquis's concentration of slurry >=0.7% or slurry temperature 90 DEG C works as concentration Being down to when 0.4% terminate overflow, recover dextrorotation, energy regenerative process, Hou Wendu rises to close microwave device when 95 DEG C, continues insulated and stirred By screw machine derotation at a slow speed after 10min, open tapping valve 303 simultaneously, when flow is tiny, open residual cake valve 302, close after emptying Screw machine, tapping valve, residual cake valve, can produce by pan feeding again continuously.
Above-mentioned four extracting solution altogether 2200Kg, separated dried technical grade tannin dry powder 16.5Kg, this tannin dry powder As purified further, food stage powerful antioxidant can be become.

Claims (4)

1. microwave coupling leach extraction method and a device, the canister by the upper end cover of dome-shaped, being furnished with microwave device, funnel shaped under Radiative cylinder in end cap and tank, screw machine, sieve plate, reflecting drum, stirring paddle constitute this apparatus main body structure, form collection slurry in tank Expect polymorphic circulating and the coupling leaching mode of microwave uniform energy regenerative comprehensively.
A kind of microwave coupling leach extraction method the most according to claim 1 and device, is characterized in that: the outside of described upper end cover Face centre bit is provided with a bearing, and position, side is provided with feeding mouth, and opposite side is provided with temperature, concentration, three kinds of sensors of liquid level, sets in ring cowling There is ring sparger；Described canister, lower port is provided with flange, and upper port becomes vertical concentric circle to be tightly connected with upper end cover, and microwave device is Many are distributed in outside this canister circumferential wall, and microwave concentrically circle is placed in canister, with tank by the smaller radiative cylinder of diameter Barrel forms airtight microwave energy-feeding chuck, and this canister upper port slightly descends position, wears canister wall and radiation barrel, is laterally provided with excessive Stream valve；Described bottom end cover, upper port is tightly connected with canister vertical concentric through flange, and lower port is connected with residual cake valve through short tube, The side of this short tube is connected with tapping valve, and opposite side is connected with solvent valve.
A kind of microwave coupling leach extraction method the most according to claim 1 and device, is characterized in that: described screw machine, wherein Axle is put on the end cap center of circle and is coupled with the bearing location in a bearing, and axle lower end terminates at bottom end cover short tube, ring axis relevant position Being provided with flight, flight periphery is fixed with sleeve pipe, and its lower end mouth keeps respective distance, sleeve upper end mouth with bottom end cover short tube Slightly below radiative cylinder height, and fixing with bamboo hat shape sieve plate internal diameter is connected, this sieve plate external diameter again with the upper end of cylindrical shape reflecting drum Mouth is fixing to be connected, and the lower port of this reflecting drum is slightly above the lower edge of radiative cylinder, between this reflecting drum and described radiative cylinder in composition The lower concentric circular passageway opened wide, forms pulp flow and the confluence of microwave energy-feeding, presses close to bezel facet and the bottom end cover of sieve plate Medial slope, be respectively provided with stirring paddle, all fix with axis through link rod.
A kind of microwave coupling leach extraction method the most according to claim 1 and device, is characterized in that: solid material granularity is 30 ～80 mesh, entering tank slurry solid-to-liquid ratio is 1:5(mass meter), Microwave Power Density is 100W/Kg(dry), gradient temperature rise is 80 DEG C～95 DEG C, gradient concentration is >=1.2%～>=0.4%, and radiated time presses concentration of slurry value or the needs of slurry temperature value.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108947156A (en) * 2018-08-31 2018-12-07 昆明理工大学 A kind of circulating red mud dealkalization system and method for water-saving efficient
CN108970173A (en) * 2018-08-29 2018-12-11 云南民族大学 A kind of production method of implanted Microwave Extraction device
CN109045750A (en) * 2018-09-19 2018-12-21 李肥生 A kind of energy-efficient pot for solvent extraction
CN109620935A (en) * 2018-12-30 2019-04-16 海南藏馨阁香业有限公司 It is a kind of to cure mainly three high and gastritis oral solutions
CN113480839A (en) * 2021-07-31 2021-10-08 江苏松上科技有限公司 Formula, preparation method and production equipment of corrosion-resistant PC/ABS composite material
CN114146447A (en) * 2021-12-09 2022-03-08 湖南中彬茶油科技有限公司 Tea saponin production extraction element

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US5587298A (en) * 1995-03-02 1996-12-24 Director General Of National Agriculture Research Center, Ministry Of Agriculture, Forestry And Fisheries Bioreactor
CN1386561A (en) * 2002-04-23 2002-12-25 华东理工大学 Microwave extracter
CN2607184Y (en) * 2003-02-24 2004-03-24 昆明理工大学 Ultrasonic enhanced digestion equipment
CN2875545Y (en) * 2006-03-01 2007-03-07 郑小非 Micro wave drying extracting device
CN202682831U (en) * 2012-06-27 2013-01-23 永州中农银杏开发有限责任公司 Multi-pipe type large-volume microwave extraction machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5587298A (en) * 1995-03-02 1996-12-24 Director General Of National Agriculture Research Center, Ministry Of Agriculture, Forestry And Fisheries Bioreactor
CN1386561A (en) * 2002-04-23 2002-12-25 华东理工大学 Microwave extracter
CN2607184Y (en) * 2003-02-24 2004-03-24 昆明理工大学 Ultrasonic enhanced digestion equipment
CN2875545Y (en) * 2006-03-01 2007-03-07 郑小非 Micro wave drying extracting device
CN202682831U (en) * 2012-06-27 2013-01-23 永州中农银杏开发有限责任公司 Multi-pipe type large-volume microwave extraction machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108970173A (en) * 2018-08-29 2018-12-11 云南民族大学 A kind of production method of implanted Microwave Extraction device
CN108970173B (en) * 2018-08-29 2024-01-30 云南民族大学 Manufacturing method of implanted microwave extraction device
CN108947156A (en) * 2018-08-31 2018-12-07 昆明理工大学 A kind of circulating red mud dealkalization system and method for water-saving efficient
CN108947156B (en) * 2018-08-31 2023-09-26 昆明理工大学 Water-saving and efficient circulating red mud dealkalization system and method
CN109045750A (en) * 2018-09-19 2018-12-21 李肥生 A kind of energy-efficient pot for solvent extraction
CN109620935A (en) * 2018-12-30 2019-04-16 海南藏馨阁香业有限公司 It is a kind of to cure mainly three high and gastritis oral solutions
CN113480839A (en) * 2021-07-31 2021-10-08 江苏松上科技有限公司 Formula, preparation method and production equipment of corrosion-resistant PC/ABS composite material
CN113480839B (en) * 2021-07-31 2022-11-01 江苏松上科技有限公司 Formula, preparation method and production equipment of corrosion-resistant PC/ABS composite material
CN114146447A (en) * 2021-12-09 2022-03-08 湖南中彬茶油科技有限公司 Tea saponin production extraction element
CN114146447B (en) * 2021-12-09 2023-09-22 湖南中彬茶油科技有限公司 Tea saponin production extraction element

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