89results about "Molecular distillation" patented technology

The present application relates to the field of semiconductor manufacturing, and specifically to a component separation device, and a liquid recovery apparatus and method. The component separation device comprises a heater, a distillation chamber, a condenser, a light component collection tank and a heavy component collection tank. The heater is configured to heat a waste liquid, such that the waste liquid is heated to evaporate, light components therein volatilize onto a surface of the condenser and flow into the light component collection tank after condensation, heavy components therein flow into the heavy component collection tank from a surface of the heater, and a distance between the condenser and the heater is greater than an average molecular motion path L1 of the heavy components and less than an average molecular motion path L2 of the light components. The waste liquid is heated to evaporate, such that the heavy components and the light components in the waste liquid are effectively separated, thereby effectively recycling the waste liquid.

A chemical reformer system has an inlet, a digester, a series of chemical reformers, coolers and separators. The temperatures and pressures of the digester and chemical reformers may be regulated, where the pressure decreases from the first chemical reformer to the last and the temperature increases from the first chemical reformer to the last. The chemical reformer system may be utilized to convert feedstock biomass to output compounds, such as bio-oils.

The utility model belongs to the technical field of silicone oil fraction purification processing, and discloses a vacuum cooling device for silicone oil molecular distillation, which comprises a vacuum condensation cavity, a cooling coil is arranged in the vacuum condensation cavity, a cooling liquid circulating device is arranged on one side of the vacuum condensation cavity, and a cooling liquid outlet is formed in the other side of the vacuum condensation cavity. The cooling coil penetrates through the side wall of the vacuum condensation cavity and is in sealed connection with a cooling liquid circulating device, the top and the bottom of the vacuum condensation cavity are both in sealed connection with three-way sealing joints, and the vacuum condensation cavity flows out of a vacuum negative pressure pipeline and a steam output pipeline through the top portions of the three-way sealing joints. The device is compact and reasonable in structural design, high-temperature silicone oil steam molecules can be cooled, impurities and low-molecular silicone oil in the high-temperature silicone oil steam molecules can be condensed and separated, the condensation efficiency of the device is high, the condensation temperature control precision is high, and the device is suitable for large-scale production. And the production efficiency and the production quality can be greatly improved.

The invention discloses scraper type thin film molecular distillation equipment which comprises a distillation retort, and a vibration structure is arranged in the distillation retort, serves as the inner wall of the distillation retort and is used for reducing material residues; the downward pressing structure is arranged on the vibration structure, and the downward pressing structure is used for driving the vibration structure so that the vibration structure can vibrate; and the film scraping structure is arranged on the inner side of the vibration structure, and the film scraping structure is used for evenly smearing the materials to the inner side of the vibration structure. According to the scraper type film molecular distillation equipment, the film scraping structure can dynamically adapt to different material characteristics, such as viscosity, adjustment of film scraping pressure and speed and uniform and controllable liquid film thickness through elastic matching of the compression-resistant spring, the sliding rod and the sliding groove of the bearing plate, combination of rotation speed adjustability of the speed reducer and real-time detection of the damping sensor on film scraping resistance; the problem that evaporation efficiency and separation selectivity are limited due to uneven liquid films of traditional equipment is effectively solved.

The invention belongs to the technical field of extraction of plant essential oil, and particularly relates to an extraction process of cumin essential oil. The extraction process specifically comprises the following steps: pretreating cumin seeds, and then carrying out supercritical CO2 gradient subsection extraction to obtain crude oil of a first incense section and crude oil of a body incense and a bottom incense section in sequence; respectively carrying out degassing, cold precipitation, filtration and clarification on the two sections of crude oil, carrying out molecular distillation, and cutting according to an accumulative distillation ratio to obtain light, medium and heavy fractions and residual liquid; and finally, directionally blending all fractions from different crude oils according to a ratio to obtain a final product. The method comprises the following steps: carrying out gradient extraction on first incense and base incense components in cumin through a process of segmented enrichment, segmented refining and directional blending, respectively rectifying the first incense and base incense components into functional fractions, and then carrying out directional combination; the process can synergistically improve the aroma level integrity, processing adaptability and storage stability of the essential oil under conventional equipment, and realizes designable flavor.

The invention provides a waste heat recovery system for molecular distillation equipment, the waste heat recovery system is communicated with a heat return port of a heat generation source, the waste heat recovery system comprises a heat recovery assembly, a heat exchange tank, a preheating feeding header pipe and a plurality of preheating feeding branch pipes arranged at an outlet of the preheating feeding header pipe; a heat conduction part is arranged in the heat exchange tank, the heat conduction part comprises a heat preservation cavity, a heat transfer medium is arranged in the heat preservation cavity, the heat conduction part is rotationally arranged in the heat exchange tank, and a reciprocating material conveying structure is arranged in the heat conduction part. And meanwhile, through the rotating arrangement effect of the heat conduction piece, the rolling movement operation of the heat transfer medium in the heat conduction piece can be achieved, effective heat absorption operation can be conveniently conducted on all the parts of the heat transfer medium, and the performance that the heat transfer medium absorbs heat more sufficiently and efficiently is improved.

The invention discloses a waste offset printing ink recovery treatment method and application, and belongs to the technical field of printing ink, the recovery treatment method comprises the following steps: mixing and stirring waste offset printing ink and n-hexane through pretreatment, and removing solid-phase slag through centrifugal separation to obtain a liquid phase; concentrating the liquid phase, recovering the solvent and reserving concentrated slurry; secondly, directionally dissolving the low-molecular resin and the high-molecular resin by butyl acetate and ethylene glycol diacetate respectively through two-stage counter-current extraction and centrifugal separation to obtain a low-molecular resin solution, a high-molecular resin solution and pure pigment slurry; mixing the two resin solutions, recovering the solvent through multi-tower rectification, and refining through short-path molecular distillation to obtain regenerated resin; and finally, performing ultrasonic purification, modification and spray drying on the pigment slurry to obtain the regenerated pigment. According to the waste offset printing ink recycling treatment method and application, an efficient and reliable solution is provided for recycling of waste offset printing ink.

The application relates to the technical field of molecular distillation equipment, and discloses a vacuum pressure system of a multi-stage molecular distillation equipment, which comprises an outer pipe connecting end, an inner pipe connecting end, a distiller and a monitoring mechanism; the monitoring mechanism is arranged in the interlayer of the outer pipe connecting end and the inner pipe connecting end, is used for monitoring the sealing condition of the outer side of the gap of the inner pipe connecting end, and seals the leakage point after the leakage point appears, and informs the personnel to repair. The vacuum pressure system of the multi-stage molecular distillation equipment is characterized in that the monitoring mechanism is arranged in the interlayer of the outer pipe connecting end and the inner pipe connecting end, the attaching sheet of a plurality of sealing components is annularly wrapped around the inner pipe connecting end, and the protection shell is filled with gas-expanding fluorine rubber particles; when the leakage point appears, the attaching sheet is firstly moved to the leakage point to preliminarily seal the leakage point, and then the filler is expanded to further press the attaching sheet to tightly adhere to the leakage point, so that the problem that the connecting end is prone to generating the leakage point and the product quality is reduced in the prior art is solved.

The invention relates to a ganoderma lucidum spore oil high-purity deacidification process based on a molecular distillation technology, and discloses a process for removing free fatty acid in ganoderma lucidum spore oil and effectively retaining active ingredients by optimizing parameters of molecular distillation equipment and combining multistage molecular distillation with a nanofiltration membrane pre-concentration process. The purity, the quality and the stability of the ganoderma lucidum spore oil are improved. The method is characterized by comprising the following steps: (1) raw material pretreatment: primarily heating ganoderma lucidum spore oil by adopting a constant-temperature water bath at 30-50 DEG C, removing mechanical impurities by virtue of a vacuum filtering device, then carrying out vacuum drying treatment on the filtered ganoderma lucidum spore oil at 60-70 DEG C for 2-3 hours, controlling the vacuum degree to be 0.01-0.03 MPa, and removing moisture, so as to obtain pretreated ganoderma lucidum spore oil; (2) primary molecular distillation: the ganoderma lucidum spore oil pretreated in the step (1) is subjected to primary molecular distillation, the evaporation surface temperature is 120-140 DEG C, the condensation surface temperature is 40-60 DEG C, the system pressure is maintained within the range of 0.1-0.5 Pa, and light components and heavy components are collected.

This invention relates to the field of nervonic acid preparation technology, specifically to a high-efficiency separation device for nervonic acid from garlic fruit oil based on molecular distillation technology. The device includes a molecular distillation apparatus, internally comprising, from top to bottom, a driver, a film scraping system, and a condensation system. The film scraping system includes a rotating shroud driven by the driver, a centrifugal disc located at the bottom of the rotating shroud, a pressure rod located inside the rotating shroud, and a transmission rod rotating at the bottom of the pressure rod and slidably inserted into the centrifugal disc. The centrifugal disc of this invention uses centrifugal force generated by high-speed rotation to evenly distribute the material onto the evaporation wall, forming an initial ultrathin film. Simultaneously, the scraper rotates accordingly, performing secondary scraping and homogenization of the initial liquid film. Utilizing the synergistic structure of centrifugal material distribution and mechanical scraping, the problem of uneven material distribution in traditional methods is solved at its source, and dynamic renewal of the evaporation interface is achieved, thereby improving heat and mass transfer efficiency.

The invention relates to a process for obtaining free fatty acid and / or free fatty acid ester, in which a liquid mixture containing the free fatty acid and / or the fatty acid ester is separated by contacting a vapour of the liquid mixture in a column of a distillation apparatus with condensate formed from the vapour running downward, wherein heat and mass transfer takes place between the vapour and the condensate on column internals. According to the invention, the column has at least 10 theoretical plates and the separation is conducted with a pressure drop between the top and bottom of the column Δp of ≥ 3.3 mbar. Appropriately, the liquid mixture, preferably produced from vegetable oil or from fish oil, contains polyunsaturated fatty acid, preferably omega-6 or omega-3 fatty acid and / or alkyl monoesters and / or glycerol monoesters. In one configuration of the invention, the column has at least 30, preferably at least 40, theoretical plates and the separation is conducted with a pressure drop Δp between 3.5 mbar and 6 mbar.

The invention relates to the technical field related to the biological processing industry, discloses a deacidification device for fish oil processing and production and a process thereof, and aims to solve the problems that all parts of fish oil are heated unevenly due to heating outside a tank and free fatty acid is difficult to separate from a fish oil system after being evaporated. When the auger rotates, fish oil at the bottom of the deacidification tank can be conveyed upwards, so that a small amount of fish oil finally flows out from a gap between the flow limiting disc and the tank cover, and the fish oil is stirred up and down in the deacidification tank; in the process that a small amount of flowing-out fish oil flows along the inner wall of the deacidification tank, a layer of thin film liquid is formed, the contact area of the liquid film and the heating surface of the tank wall is greatly increased, heat can be directly and rapidly transferred to fish oil molecules, and in the liquid film state, free fatty acid in the fish oil can be rapidly diffused to a gas phase space after being vaporized, so that the fish oil is rapidly separated from the gas phase space. And the residence time of fatty acid steam in an oil phase is reduced.

This invention relates to a high-content EPA / DHA product separation and purification device, belonging to the field of extraction and purification equipment technology. It includes a distillation cylinder with a heating jacket inside. A film-forming mechanism is located at the upper end of the cylinder's inner cavity, utilizing a preheated liquid jet to form an atomized liquid film skirt, which, in conjunction with the heating jacket, heats the raw material. An inclined guide plate is located at the lower end of the cylinder's inner cavity, with multiple through holes arranged in a ring array. Above the guide plate is a heavy phase collection area, with a heavy phase discharge pipe on one side. Below the guide plate is a light phase collection area, with a light phase discharge pipe on one side. A condensation mechanism is installed inside the distillation cylinder. This solution solves the problem that direct heating of the raw material can lead to a slow boiling point, resulting in impurities contaminating the EPA / DHA and affecting its purity.

This invention relates to the field of molecular distillation equipment technology, and discloses a feeding device for a molecular distillation equipment, including a distillation body and a liquid inlet pipe. The liquid inlet pipe is installed on one side of the top of the distillation body for injecting a liquid mixture into the distillation body. The liquid inlet pipe contains a valve body, a valve core, a throttling boss, and a multi-stage throttling ring. The valve body is fixed to the inner wall of the end of the liquid inlet pipe closest to the distillation body. This feeding device for molecular distillation equipment, by setting a valve core adjustment structure synchronized with the gas pressure of the distillation body and a liquid outlet fine-tuning component, achieves dynamic adaptation of the feed flow rate to the vacuum degree of the distillation body. This solves the problem of frequent fluctuations in the liquid volume within the distillation body caused by pulse / droplet feeding in existing technologies, ensuring stable liquid layer thickness, uniform heat transfer, avoiding insufficient vaporization of high-boiling-point components or excessive vaporization and decomposition of low-boiling-point components, and maintaining gas-liquid balance and the purity of the target component.

The invention belongs to the technical field of separation and purification, and particularly relates to a separation and purification system, application thereof and a method for separating and purifying saturated fatty acid amide. The separation and purification system provided by the invention comprises a spiral plate heat exchanger, a short-path molecular distiller, a horizontal distiller, a horizontal condenser, a vertical condenser and a product receiving tank which are communicated in sequence, a low-boiling-point substance outlet of the short-path molecular distiller is communicated with a front fraction receiving tank, the horizontal distiller is communicated with a falling film heater through a circulating pump, and a material outlet of the falling film heater is communicated with the horizontal distiller; and the top end of the vertical condenser is connected with a vacuum unit. The separation and purification system is simple and convenient to operate, can be suitable for separation and purification of various saturated fatty acid amides, and expands the application field. The product separated by the separation and purification system provided by the invention is high in purity (the amide content is greater than or equal to 98.5%), good in color (less than or equal to 100HaZen) and high in yield (greater than or equal to 95.5%).

The invention discloses a wiped film thickness adjusting device for a molecular distiller, and relates to the technical field of molecular distillators, the wiped film thickness adjusting device comprises a tank body, a motor and a central pipe, and further comprises a heating mechanism arranged on the outer wall of the tank body and used for forming a heating surface for liquid evaporation on the inner wall of the tank body; the first scraping plate, the second scraping plate and the third scraping plate are sequentially fixed to the outer wall of the center pipe, and liquid outlet grooves penetrating through the first scraping plate, the second scraping plate and the third scraping plate are longitudinally formed in the inner wall of the center pipe at equal intervals; and the buoyancy switching mechanism is arranged in the central pipe and the top cover and is used for switching the first scraping plate, the second scraping plate and the third scraping plate to scrape a film according to the liquidity of the liquid, so that the film forming thickness of the liquid on the inner wall of the tank body is adjusted. And the film scraping thickness can be automatically adjusted according to different contents of heavy components and light components in the material film scraping process, so that the evaporation effect is improved.

The invention belongs to the field of sugar industry, and discloses a method for enriching and separating sugarcane flavor substances. A co-processing method of sugarcane juice acid adjustment, heating, vegetable tannin coagulation, plate frame filtration, secondary heating, high-temperature evaporation, condensation, subcritical extraction and distillation is mainly adopted, filtered juice subjected to existing plate frame filtration treatment is high in quality, the water content of a filter cake is low, and the extraction, enrichment and purification processes of sugarcane flavor substances are green production processes. The method has the advantages that the method is simple in operation, the influence on subsequent processing of the sugar juice is small, the comprehensive utilization value of the obtained filter mud, deodorized water and other byproducts is high, the sugarcane flavor substance enrichment and separation system has the characteristics of compact and advanced equipment, high efficiency and the like, products are diversified, the value of the byproducts is high, and the comprehensive economic benefit and social benefit are very remarkable.

A method for reducing mineral oil content in edible vegetable oil includes the following steps: carrying out the molecular distillation on the edible vegetable oil having mineral oil exceedance; mixing water, the vegetable oil and an emulsifier with stirring to form an unstable emulsion; standing the emulsion for 1 to 5 hours for layer separation to form oil phase and emulsified phase, or oil phase, emulsified phase and water phase, and then separating different phases; freezing the oil phase after stirring, and then treating the oil phase with high-voltage pulsed electric field followed by ultrafiltration to obtain a vegetable oil I; subjecting the emulsion phase to low-temperature plasma treatment and then to high-voltage pulsed electric field treatment to break emulsion, drawing the upper oil phase for ultrafiltration followed by molecular distillation to obtain a vegetable oil II.

The application discloses NMP dynamic rectification equipment and a control method thereof, and relates to the technical field of NMP waste liquid treatment.The application is characterized in that a roughness larger peristaltic diffusion layer, a roughness second radiation diffusion layer and a relatively smooth wetting escape layer are arranged on the surface of the evaporator in the molecular distillation cylinder, and the roughness of the peristaltic diffusion layer and the radiation diffusion layer is linearly reduced from top to bottom, so that a stronger solid-liquid surface energy is formed when the waste liquid contacts the evaporation surface, the liquid slides down under the action of its own gravity, continuously diffuses, forms a multiple linearized "scattered" liquid state from top to bottom, and efficiently completes molecular distillation in the wetting escape layer, thereby reducing the rolling boiling phenomenon of the waste liquid on the evaporation surface of the evaporator and improving the falling film molecular distillation effect.

This invention provides a short-path distillation apparatus comprising a distillation tank, a distillation tube, a cooling tube, and a separating component. The distillation tank has a heating zone; the distillation tube is located within the heating zone and is connected to the inlet, a first outlet, and a second outlet; at least a portion of the cooling tube is located inside the distillation tube and is coaxially arranged with it; the cooling tube is used to condense the gas corresponding to the liquid material vaporized by the heating medium in the heated zone of the distillation tube, obtaining condensed liquid; the separating component is located inside the distillation tank and below the distillation tube, and is used to guide the liquid material vaporized by the heating medium in the unheated zone of the distillation tube to the first outlet and to guide the condensed liquid to the second outlet. This invention can separate light and heavy components in liquid materials and is also suitable for large-scale distillation.

The invention discloses a separation method for improving fat flavor and unsaturated fatty acid content of beef tallow, which comprises the following steps: balancing refined beef tallow in a room temperature environment, heating in a water bath until the beef tallow is completely in a transparent liquid state, and carrying out short-path molecular distillation treatment on the completely transparent liquid-state beef tallow to obtain separated beef tallow, the distillation temperature of the short-path molecular distillation is 160-210 DEG C. According to the method disclosed by the invention, the content of unsaturated fatty acid and the content of fat flavor characteristic substances in the beef tallow can be remarkably increased; the operation is simple, and other chemical substances and thermal decomposition are not introduced; the prepared product gives consideration to nutrition and flavor, and can be widely applied to the food fields of baking, hotpot condiments and the like.

The application discloses a molecular distillation equipment with a gas boosting device, which is arranged on a distillation tank and comprises a pushing device, a driving structure and a memory metal wire.

To provide a system and a method for treating a tetraalkylammonium hydroxide-containing liquid that make it possible, through reduction of concentration load for an evaporator and without installing an additional evaporator, to treat the tetraalkylammonium hydroxide-containing liquid even when the amount of the liquid increases.SOLUTION: A system for treating tetraalkylammonium hydroxide-containing liquid includes: a high-pressure reverse osmosis membrane device that concentrates a to-be-treated liquid containing tetraalkylammonium hydroxide on the concentration side; and a line that feeds the treated liquid concentrated by the reverse osmosis membrane device to an evaporator that further concentrates the liquid.SELECTED DRAWING: Figure 1

The invention provides a method for extracting gingerol by supermolecule NADES (non-aqueous diethyldiethanolamine) cooperating with supercritical extraction, which comprises the following steps: mixing ginger with a green and safe supermolecule NADES solvent, and carrying out freezing, ultrasonic treatment, decoloration and purification process treatment to obtain supermolecule gingerol extract. Compared with a traditional conventional extraction solvent, the problems of environmental pollution, difficult separation and purification and low extraction efficiency are solved, and the supramolecular gingerol extract provided by the invention has excellent anti-oxidation, antibacterial and anti-wrinkle effects and can be applied to the fields of foods, medicines and cosmetics.

The invention relates to the field of semiconductor manufacturing, in particular to a component separation device and a liquid recovery device and method. The component separation device comprises a heater, a distillation cavity, a condenser, a light component collection tank and a heavy component collection tank. The heater is used for heating the waste liquid to evaporate the waste liquid, light components in the waste liquid volatilize to the surface of the condenser and flow into the light component collecting tank after being condensed, and heavy components in the waste liquid flow into the heavy component collecting tank from the surface of the heater; the distance between the condenser and the heater is larger than the molecular average motion range L1 of the heavy components and smaller than the molecular average motion range L2 of the light components. The waste liquid is heated and evaporated, and heavy components and light components in the waste liquid are effectively separated, so that effective recycling of the waste liquid is realized.

The invention relates to a method for preparing high-purity oleic acid from tea oil based on coupling of a molecular distillation technology and a urea embedding technology in the technical field of deep processing of edible oil and fat. The method comprises the following steps: firstly, microfiltering the tea oil by using a 0.1-0.5 mu m membrane to remove impurities; then preparing mixed fatty acid; mixing the mixed fatty acid with a urea-ethanol solution according to the ratio of fatty acid to urea being 1: (1.2-1.8), stirring at 45-50 DEG C for 2-3 hours, cooling to-15 to-5 DEG C, crystallizing for 1-14 hours, separating and taking a liquid phase; and finally, treating the liquid phase by a wiped-film molecular distillation system to obtain high-purity oleic acid. According to the method, oleic acid enrichment is achieved, and meanwhile a large amount of heat-sensitive active ingredients are effectively prevented from being oxidized and decomposed.

The invention relates to the technical field of fish oil preparation, in particular to a method for removing fishy smell from sea bass oil, which comprises the following steps: S1, supercritical fluid extraction pretreatment: putting sea bass oil into a supercritical fluid extraction device, and carrying out supercritical fluid extraction to remove part of fishy substances and impurities in fish oil; s2, primary separation: performing primary separation on the mixture extracted in the step S1; s3, secondary separation: performing secondary separation on the fish oil subjected to primary separation; s4, adsorption and fishy smell removal: enabling the fish oil subjected to secondary separation to pass through an adsorption column filled with a composite adsorbent; s5, molecular distillation purification: carrying out molecular distillation on the adsorbed fish oil; and S6, secondary adsorption under the protection of inert gas: in the fish oil subjected to molecular distillation, under the protection of inert gas, carrying out secondary adsorption again through the adsorption column filled with the composite adsorbent. The technical problem that the fishy smell of sea bass oil cannot be efficiently and greatly removed by the existing fishy smell removal process method is solved.

The utility model discloses a production device of a water-soluble alkyd resin coating, and relates to the technical field of coating production, an inlet of a pre-esterification kettle is respectively communicated with a polyhydric alcohol tank and a fatty acid tank, an outlet of the pre-esterification kettle is communicated with a re-esterification kettle, and an inlet of the re-esterification kettle is respectively communicated with a fatty acid tank, a hydrophilic monomer tank and a composite metal salt catalyst tank; an outlet of the re-esterification kettle is communicated with a reduced pressure distillation kettle through a pipeline, a top outlet of the reduced pressure distillation kettle is communicated with a first recovery tank through a pipeline, and a bottom outlet of the reduced pressure distillation kettle is communicated with a product tank through a pipeline. Through step-by-step esterification, the structure and molecular weight distribution of resin molecules can be better controlled, and the water solubility and stability of the water-soluble alkyd resin are improved. The reaction time is shortened and the energy consumption is reduced on the premise of ensuring the product quality, and no volatile organic solvent is added, so that the method is environment-friendly and the cost is reduced.

The invention relates to the field of organic synthesis, in particular to a method for preparing a pyrazine mixture based on a Maillard reaction, which comprises the following steps: carrying out the Maillard reaction in a buffer solution by taking amino acid and reducing sugar as reaction raw materials and ammonium salt as a catalyst, stopping the reaction when the content of the pyrazine mixture in the reaction solution does not change any more, and then purifying and separating to obtain the pyrazine mixture containing 2, 4-diazabicyclo [3, 4-b] pyridine. The invention relates to a pyrazine mixture of 2, 5-dimethylpyrazine, 2, 6-dimethylpyrazine and 2, 3-dimethylpyrazine. Compared with a traditional Maillard reaction, the ammonium salt is introduced into a Maillard reaction system of amino acid and reducing sugar for the first time to serve as the catalyst, and the content of pyrazine in the Maillard product can be remarkably increased.