49results about "Co-current extraction" patented technology

The disclosure includes a method, comprising passing a fluid into a co-current contactor, passing a solvent into the co-current contactor, dividing the solvent into solvent droplets having a first average droplet size, placing the fluid in contact with the solvent droplets to create a combined stream, coalescing at least a portion of the solvent droplets to create solvent droplets having a second average droplet size, wherein the second average droplet size is greater than the first average droplet size, and separating the fluid and the solvent.

In an improved fiber-film type contactor/separator an enhanced coalescing zone is provided by the presence of a disengagement device connected to a shroud that contains a bundle of high surface area vertical hanging fibers, where the enhanced coalescing zone diverts a portion of an admixture of immiscible liquids to flow radially in a path not parallel to the vertical axis of the hanging fibers whereby the diverted portion of liquids contacts a coalescing surface to cause at least one of the liquids to coalesce into droplets. The immiscible liquids are allowed to settle into separate phase layers and first and second outlets selectively remove the higher density liquid from the lower density liquid.

Methods treat ash from waste incineration, wherein the methods at least comprise: a) the digestion of the ash by a leaching liquor containing phosphate ions in solution such as to form a first solid phase comprising impurities and a first liquid phase comprising phosphate ions; and b) the separation of said first liquid phase comprising phosphate ions from said first solid phase. Step a) is carried out for a duration of less than one hour or at a temperature of more than 40° C.

A system is provided for removing dimethyl ether (DME) from oil, water or brine and gas that includes a gas-oil-water separation module, a DME absorber, a water stripper, a liquid-liquid extractor, a water source, and an oil stripper, and a process is provided for separating DME from a mixture of DME, crude oil, water or brine, and a gas containing alkane hydrocarbons. A DME lean oil containing at most 1 ppmwt may be produced by the process.

The invention discloses a two-aqueous-phase membrane extraction method and device and belongs to the technical field of extraction and separation. Two-aqueous-phase extraction and membrane separation are organically combined, and the liquid phase and the extract phase of the two aqueous phases flow on the two sides of a membrane respectively; the liquid phase is an aqueous solution which contains target metal ions; the extract phase is a polymer phase or a polymer loaded with a coordination agent; the target ions enter the polymer phase through membrane holes. Through the two-aqueous-phase membrane extraction method and device, addition of inorganic salt and subsequent salt recovery are eliminated, the problem that the two aqueous phases are prone to emulsification is solved, it is avoided that loss is caused by mixing and dissolving of the polymer phase and the liquid phase, and the method is a simple, efficient and environment-friendly process method with low energy consumption and has the advantages that the occupied area is small, running is stable, and large-scale production is easy.

The invention discloses an efficient plant extraction device for cosmetics. According to the invention, a grinding barrel is arranged on and penetrates through the top end of a plant feeding pipe; a transmission rod is arranged on and penetrates through the top end of the grinding barrel; a transmission speed regulating wheel is connected to the top end of the grinding barrel; the transmission speed regulating wheel and a driven speed regulating wheel are connected through a belt; clamping rings are symmetrically welded to the side ends of the transmission rod; cutting fan blades are embedded into the inner sides of the clamping and fixing grooves; a grinding gear is welded to the side end of the transmission rod; a grinding gear ring is welded to the inner side of the grinding barrel; and flushing water inlet pipes penetrate through the two ends of the grinding barrel. A cutting speed and ta e grinding speed are changed through the transmission speed regulating wheel and the driven speed regulating wheel, so the device can be quickly switched when different types of plants need to be handled, and the situation that the plants are damaged or the plants are not sufficiently ground due to a fixed grinding speed is avoided; and meanwhile, the height of a protection cover is adjusted, so a cutting device is conveniently adjusted according to the specific conditions of the plants.

The invention discloses a high-flux liquid-liquid extraction microfluidic device and an extraction method thereof. The high-flux liquid-liquid extraction microfluidic device comprises a water phase inlet liquid collecting cavity, an oil phase inlet liquid collecting cavity, a water phase outlet liquid collecting cavity, an oil phase outlet liquid collecting cavity, a water phase inlet micro-channel, an oil phase inlet micro-channel, a contact extraction micro-channel, a water phase outlet micro-channel and an oil phase outlet micro-channel; the water phase inlet micro-channel and the oil-phaseinlet micro-channel are connected with one end of the contact extraction micro-channel, and the other end of the contact extraction micro-channel is connected with the water phase outlet micro-channel and the oil phase outlet micro-channel; and the other ends of the water phase inlet micro-channel, the oil phase inlet micro-channel, the water phase outlet micro-channel and the oil phase outlet micro-channel are respectively connected with the water phase inlet liquid collecting cavity, the oil phase inlet liquid collecting cavity, the water phase outlet liquid collecting cavity and the oil phase outlet liquid collecting cavity. The extraction method of the high-flux liquid-liquid extraction microfluidic device comprises co-extraction and reverse extraction. By using the high-flux liquid-liquid extraction microfluidic device and the extraction method thereof, a sample solution and an extractant can be continuously introduced and stably conveyed, the fluid contact area and the extraction efficiency are increased, and the high-flux liquid-liquid extraction microfluidic device and the extraction method thereof are suitable for extracting a plurality of metal ions.

The invention discloses a citrus mitis essential oil with bacteria-inhibiting activity. The citrus mitis essential oil is respectively prepared by leaves, green peels or yellow peels of citrus mitis. The citrus mitis essential oil is prepared by the following steps of 1, collecting the leaves, green peels or yellow peels of citrus mitis, and respectively crushing; 2, under the conditions of material and liquid ratio of 1/5 to 1/3 and distilling time of 50 to 70mins, using a water steam distilling method to respectively extract citrus mitis leaf essential oil, citrus mitis green peel essential oil or citrus mitis yellow peel essential oil. The citrus mitis essential oil has the advantages that the citrus mitis essential oil is developed and applied as a natural plant bacteria-inhibiting agent; the extracting technology is simple, the other additives or components are not contained, the safety, efficiency, non-poisonous, green and environment-friendly effects and the like are realized.

The invention discloses a dynamic and continuous atomizing extraction method. The method comprises the following steps: preheating a plant extract to 15 DEG C to 60 DEG C, then dispersing the preheated plant extract into mist-like liquid drops under the condition of a pressure of 0.1 MPa to 20 MPa, then continuously spraying the mist-like liquid drops into an extraction tank, continuously adding a solvent into the extraction tank in a manner of reverse flow or parallel flow at the same time, allowing the solvent and the plant extract dispersed into the mist-like liquid drops in the extraction tank to completely contact and carrying out atomizing extraction, and allowing an obtained extraction phase and a raffinate phase to continuously outflow from the extraction tank. The dynamic and continuous atomizing extraction method provided by the invention has the following advantages: operation is convenient; the usage amount of the solvent is small; meanwhile, continuous instantaneous extraction and thorough extraction effect can be realized; the recovery rate of effective components in the plant extract can reach up to 95% or above; extraction efficiency is high; and the method is suitable for industrial production.

The invention discloses an experimental method for desulfurizing and deashing coal by utilizing the permeation and dissolution capacity of supercritical fluid, and relates to the field of desulfurization before coal combustion. With a supercritical fluid technology as a core process, and mainly, through adjustment of the temperature and the pressure, the solubility of a solute in supercritical CO2is related to the density of the supercritical CO2; the temperature and the pressure jointly determine the density of CO2, the CO2 has special capacity in the supercritical state by changing the temperature and pressure conditions, organic sulfur in the coal is removed through selective dissolution and separation, and the effect of greatly reducing ash is further achieved while the organic sulfuris effectively reduced. The whole technological process is simple, convenient to operate, capable of easily achieving temperature and pressure control and suitable for large-scale industrialization;meanwhile, CO2 is non-toxic and pollution-free to the raw materials and has no influence on the coal quality; the desulfurization rate comprises that organic sulfur can be removed by 23%, inorganic sulfur can be removed by 70%, and the ash content is reduced by 32%.

The invention discloses a method for continuous countercurrent extraction of long-chain fatty alcohol in an alkyl glycoside crude product, and belongs to the technical field of light chemical daily necessity separation. According to the invention, with the method, a supercritical CO2 extraction technology can be realized, continuous countercurrent extraction on long-chain fatty alcohol in an alkylglycoside crude product can be achieved, the purpose of high-precision purification is achieved, extraction is mild in regulation and free of pollution, the extraction capability and the extraction rate are high, and the extraction time is short, so that the method is an environmentally-friendly separation and purification technology; CO2 can be continuously separated without speed reduction under the cooperation of a co-current adsorption assembly, and long-chain fatty alcohol entrained in CO2 gas can be actively adsorbed under the condition of maintaining temperature and air pressure, so that the CO2 separation effect is further improved, and the high extraction effect is kept when CO2 is recycled; and the co-current adsorption assembly can also desorb and recover long-chain fatty alcohol after extraction is finished so as to substantially improve the extraction rate of the long-chain fatty alcohol compared with the prior art, and the co-current adsorption assembly can be repeatedlyused after desorption treatment.

The invention relates to a carbon dioxide high-pressure extraction decalcification process for fly ash, which comprises the following steps: 1, washing fly ash with water to prepare slurry, and carrying out suction filtration on the prepared slurry to obtain water washing liquid and solid slag; 2, washing the solid residues with water to prepare slurry, converting calcium contained in the solid residues into calcium bicarbonate by adopting carbon dioxide high-pressure extraction, and dissolving the calcium bicarbonate in water; 3, performing suction filtration on the slurry subjected to carbon dioxide high-pressure extraction to obtain residual solid residues and water washing liquid, and decomposing calcium bicarbonate in the water washing liquid at normal temperature and normal pressure to generate calcium carbonate; and 4, calcining the calcium carbonate obtained in the step 3 to obtain quick lime and carbon dioxide gas, wherein the carbon dioxide gas is reused in the carbon dioxide high-pressure extraction stage in the step 2. According to the method, calcium carbonate is separated from solid residues obtained after fly ash washing in a carbon dioxide high-pressure extraction mode, the method is more convenient than a cement kiln synergistic process, and carbon dioxide can be recycled for fly ash washing and carbon dioxide high-pressure extraction stages through calcium carbonate calcination.

The invention discloses an automatic control device for extractive distillation, and in particular relates to a volatile component distillation automatic control device. The device comprises an extraction tank (1), bottom cover (2), feeding port (3), a material pipeline A (4), a condenser A (5), a condensed water inlet A (7), a condensed water outlet A (6), a condenser X (8), an oil-water separator X (9), an exhaust port X (12), a condensed water inlet X (24), a condensed water outlet X (23), a condenser Y (10), an oil-water separator Y(11), an exhaust port Y(13), a condensed water inlet Y(22), a condensate water outlet Y(21), an oil-water separator Z(14), a condensate water inlet Z(26), a condensate water outlet Z(25), an oil collecting tank(27), a controller(28), a material pipeline B(20), a valve(15), a valve(16), a valve(17), a valve(18) and a valve(19). The automatic control device has the advantages of simple structure and convenient operation, obviously reduces the consumption of condensed water and improves the collection rate of volatile components.

The invention relates to a cosmetic preparation raw material extraction method mainly comprising the following steps: equipment inspection, material preparation, distillation extrusion and material collection; the cosmetic raw material extraction equipment comprises a mounting rack, a distillation suite and a collection suite; the distillation suite and the collection suite are sequentially arranged in the mounting rack from bottom to top; the method can solve the following problems existing in the extraction of an existing skin care product plant essence: a, when the existing plant essence is extracted, the plant self secretes juice through distillation, the secretion speed is low, and the production speed is slow; and b, when the existing plant essence is distilled, the juice extraction efficiency is relatively low due to non-uniform heating of plants, so that the production efficiency is greatly slowed down.

The invention relates to a spiral efficient sulfur extraction device and an extraction method thereof. The device comprises an extraction tank, a first feeding hole, a second feeding hole, a dissolving tank and a liquid outlet, wherein the extraction tank is of a closed cavity structure; the dissolving tank is spirally and uniformly distributed around the axis of the extraction tank from top to bottom along the axis of the extraction tank; the upper end surface of the dissolving tank is communicated with the first feeding hole and the second feeding hole; the lower end surface of the dissolving tank is communicated with the liquid outlet; the first feeding hole is perpendicular to the upper end face of the extraction tank; the liquid outlet is formed in the bottom of the side wall of the extraction tank; the axis of the liquid outlet is perpendicular to the axis of the extraction tank; the axes of the first feeding hole and the liquid outlet intersect with the axis of the dissolving tank respectively; and the second feeding hole is formed in the upper end face of the extraction tank and is symmetrical with the first feeding hole about the axis of the extraction tank. According to the invention, the processing requirement of high-efficiency extraction operation on liquid sulfur can be effectively met, and the operation efficiency of separation between an extract and a master batch is improved, so the processing efficiency and quality of liquid sulfur extraction operation can be effectively improved while the equipment operation and maintenance cost and the liquid sulfur extraction operation cost are reduced.

The invention discloses a supercritical fluid extraction system and extraction method, wherein the supercritical fluid extraction system comprises a fluid supply device, a pressurizing device, a heating device, a primary extraction device, a collecting device and an ultrasonic extraction device; the fluid supply device is at least provided with a fluid storage tank and a circulating cooling tank communicating with the fluid storage tank through a pipeline; the pressurizing device is at least provided with a pressurizing pump; the heating device is at least provided with a first heat exchanger;the primary extraction device is at least provided with an extraction tank, and the extraction tank is connected with the first heat exchanger through a pipeline; the collecting device is provided with at least one collecting tank; the ultrasonic extraction device comprises a first reaction tank, an end cover, an electric heater and an ultrasonic rod. The method for extracting an extract by adopting the supercritical fluid extraction system comprises a fluid supply step, a pressurizing and heating step, an extraction step, a collection step and a recovery step; through extraction and ultrasonic extraction in sequence, the raw materials are extracted more sufficiently, the extraction efficiency is improved, and meanwhile, cyclic utilization of carbon dioxide is achieved.

The invention belongs to the technical field of desulfurization of raw coal before combustion, and particularly relates to a method for removing organic sulfur in coal by a polar supercritical fluid.The purpose of the invention is to solve the problems of desulfurization of raw coal before combustion. The method comprises the following steps: crushing a coal sample to a proper particle size; detecting the total sulfur content and organic sulfur of the coal sample, detecting the chemical bond type and polarity of a -C-S-bond in the organic sulfur, and determining the polar supercritical fluidand reaction conditions; vacuumizing the reactor before a reaction; removing the organic sulfur in the coal by a system having a strong polarity, a good reaction activity and a high selectivity and formed by combining with the polar supercritical fluid; and collecting, analyzing and detecting the reacted sample. The proper polar supercritical fluid is selected according to different structures ofthe organic sulfur in the coal sample, and the prepared coal sample is subjected to the desulfurization reaction in the polar supercritical fluid, so the method has the advantages of high polarity, good pertinence, high selectivity, high reaction activity and good desulfurization effect, and is of great significance to desulfurization of raw coal before combustion.

The invention discloses an extraction method of ant effective components. The extraction method comprises following steps: 1, artificially cultured or wild complete ant bodies are selected; 2, the antbodies are introduced into a drying device; 3, the ant bodies are introduced into a carbon dioxide extractor, and two times of cell wall breaking treatment are carried out successively; 4, ant bodiesare maintained in the carbon dioxide extractor for extraction, wherein extraction process is divided into five stages, and from the first stage to the last stage, the carbon dioxide flow amount is increased gradually; and 5, after extraction, an extracted fluid is introduced into a separator for separation, wherein a first separation pressure of the separator is controlled to be 20 to 25 DEG C, separation temperature is controlled to be 50 to 55 DEG C, secondary separation pressure is controlled to be 10 to 15MPa, and separation temperature is controlled to be 50 to 55 DEG C, tertiary separation pressure is controlled to be 5 to 8MPa, and separation temperature is controlled to be 50 to 55 DEG C. The extraction method is capable of increasing yield of the effective components.