62 results about "Distillation" patented technology

This invention relates to one kind of method to use abandoned grease to produce epoxy plasticizer, its characteristic lies in: Use the abandoned grease as raw materials, by pretreatment, the obtained glycerin ester to ester exchange respond with the methyl alcohol under alkali catalysis, then get fatty acidmethyl ester, then again with the peroxide organic acid, which is the reaction products of hydrogen peroxide and organic acid, to directly epoxy respond, get the raw epoxy fatty acid methyl ester, then wash off the acid by water, and obtain the epoxy fatty acid methyl ester by distillation and dehydration product. The raw material cost of this invention is low, originates broadly, conforms to the green environmental protection requirement, and the craft is simple, does not pollute environment, so it is the good substitute of petroleum product.

The method for preparing active carbon from bamboo raw material includes the following steps: (1). mao bamboo and waste produced by making bamboo wares are used as raw material, through cutting and screening, and screening bamboo scraps or screening bamboo scraps and making them form; (2). low temp. pyrogenic distillation carbonization of bamboo raw material in carbonization furnace, its pyrogenic distrillation carbonization temp. is 200-600 deg.C; (3). in the presence of micro oxygen placing the carbonized bamboo raw material into activating furnace and making activation by using superheatedsteam at high-temp., activating temp. is 400-850 deg.c; and (4) breaking or water washing activated active carbon, drying, sorting and sieving to obtain the invented product. Before carbonization thebamboo raw material can be soaked in mixed solution formed from zinc chloride and hydrogen peroxide or mixed solution formed from phosphoric acid and hydrogen peroxide. Its product not only possessesthe advantages of all the wooden active carbons, but also its methylthionine chloride decolouring power can be raised by 20%.

The invention relates to a method to separate temperate coal race component based on the extract and the stripping, which belongs to the separating method of the coal race component. Join the component solvent into the coal sample, agitate it and obtain the extract liquid-solid mixture; Carries on the liquid-solid separation to the extract liquid-solid mixture, obtains the extracted liquid and the gathering excess separately; To gathers the excess water used wash, then the vacuum drying, obtains gathers -odd coal; Joins the stripping medicinal preparation in the extracted liquid, the agitation, obtains the stripping liquid-solid mixture and carries on the liquid-solid separation to it, obtains the solid matter and the wet goods; To solid matter water used wash, dry, obtains the refined coal; The wet goods are two laminations: To a lamination takes off resolve A with the atmospheric pressure distillation, carries on the stripping again to the surplus solution, will produce sticks the thick shape solid, carries on the drying process to it, obtains the caking component; Another lamination is mainly resolved B and the stripping medicinal preparation omnium-gatherum. We bench work skill process is simple, the extract and the stripping process is temperate, the resolved recycle, the reaction process is advantageous for the control, can cause the coal petroleum to separate Cheng Cuiyu the coal, the refined coal, the caking group to classify many kinds of unique race components equally in advance likely.

There are provided a chemical treatment cartridge capable of executing various extraction processes with ease and a method of using the same. There are formed recesses, each in a predetermined shape, in the back surface of an elastic member. The recesses create empty spaces between the cartridge substrate and the elastic member, thereby making up a well for receiving a sample, a well for pre-removing unnecessary moisture, a well for accommodating the sample at the time of distillation, a well for storing impurities therein, a well for taking out an object constituent, a flow path interconnecting the side surface of the cartridge and the well, a flow path interconnecting the well and the well, a flow path interconnecting the well and the well, a flow path interconnecting the well and the well and a flow path interconnecting the well and the well.

An improved method for efficiently adding additional heat values into a distillation process to optimize the production of distillate from water.

The invention discloses a method for separating low-carbon olefin gas. The method is used for overcoming the disadvantages in existing low-carbon olefin separation methods that cryogenic separation is complicated in process flow, large in investment and the like. The method comprises the following steps: the low-carbon olefin gas enters a deethanization tower after the low-carbon olefin gas is compressed and dried, a tower bottom material flow of the deethanization tower is conveyed to a depropanization and propylene distillation system so as to separate polymer-grade propylene products, and a tower top material flow of the deethanization tower enters a demethanization tower; and a tower bottom material flow of the demethanization tower is conveyed to an acetylene converter and an ethylene distillation tower, a tower top material flow of the demethanization tower is conveyed to an absorption tower and is in contact with an absorbent, a tower top gaseous-phase material flow of the absorption tower is output or enters a fuel gas system, and a tower bottom material flow of the absorption tower is conveyed to the deethanization tower. The method disclosed by the invention has the advantage that the cryogenic separation is simple in process flow and small in investment and can be used for producing target products, such as polymer-grade ethylene, polymer-grade propylene and the like.

The invention discloses a method for refining rice bran oil by using short distance distillation. The method is implemented by putting crude rice bran oil in a buffer pot directly, transferring into a primary film evaporator by a pump for dehydration and desaeration, performing primary dehydration and desaeration under conditions of temperature being 60-120 DEG C and pressure being negative 0.8MPa to negative 0.95MPa; pumping the dehydrated and desaerated rice bran oil into a secondary short distance evaporator for deacidification with temperature controlled at 100-200 DEG C and pressure at 100-0.1Pa to obtain oleic acid with high acid value and rice bran oil with low acid value. The invention avoids heavy pollution processes of alkali refining and neutralizing chemical process for obtaining soda soap and process discharging waste water of washing when processing rice bran oil, the procedure is simple, high value oleic acid and low acid value rice bran oil can be distilled and separated, and the separation process is a physical process, the rice bran oil has no loss and the yield is very high.

The invention discloses a new method for formic acid purifying, which comprises the following steps: the aqueous solution of dilute formic acid with the mass concentration of more than 30 percent and anhydrous calcium chloride are mixed, heated to 80 to 95 DEG C so as to lead the anhydrous calcium chloride to be dissolved, and then formic acid with high concentration is obtained through atmospheric distillation; and the mass ratio of the water in the aqueous solution of calcium chloride anhydrous and the aqueous solution of dilute formic acid is 1: 1.5 to 1.8. The purifying method of formic acid is a process which has the advantages of simple and convenient operation, fastness, low cost and cleanness, thus being suitable for industrial production.

The invention relates to a method for recycling methylal in glyphosate wastewater. The method comprises the following steps of: 1) treating the chloromethane tail gas obtained by deacidifying the glyphosate through a dealcoholization kettle with three-stage condensation and multi-stage washing in a water scrubber, wherein the chloromethane gas enters into a compression system so as to be recycled, and the condensate enters into a dilute methyl alcohol storage tank; pumping the condensate in the dilute methyl alcohol storage tank into a preheating kettle with the temperature of 50-60 DEG C to preheat the dilute methyl alcohol for 10-15min, then, distilling the preheated dilute methyl alcohol in a distillation tower; distilling out the low-boiling point methylal from the top of the distillation tower, discharging after reflowing and condensing, and conveying the condensate into a collection tank. The method not only can effectively reduce the potential safety hazards caused by wastewater discharge, but also can effectively recycle the methylal, and can improve the recovery rate of the methylal to be more than 96%.

The invention relates to circulating comprehensive utilization technology for winemaking cooling water and bottle washing water, wine-receiving temperature automation control, a natural environmental-friendly energy-saving cooling method for cooling water in summer, automation cooling water flow control, a circulating system water supply and drainage special pipe network, water treatment and the like in the white wine industry, in particular to circulating comprehensive utilization technology and a circulating comprehensive utilization system for white wine-making cooling water and bottle washing water. By adopting an automation instrument control technique, the aims of accurately controlling the wine-receiving temperature and automatically adjusting cooling water flow are fulfilled, the raw wine quality of the white wine after distillation, condensation and wine receiving at constant temperature is improved and stabilized, the stability and the improvement of an optimal product rate of the white wine bring considerable economic benefits, the labor intensity of winemaking workers is reduced, the production cost of white wine enterprises and the cost of wastewater treatment and discharge are reduced greatly, a large amount of valuable water resource is saved, the scaling and corrosion of the white wine on a condenser are controlled and relieved, the heat exchange efficiency is improved, and the service life of the condenser is prolonged.

An integrated apparatus for separating a mixture of carbon dioxide and at least one other gas and for separating air by air distillation is provided. The apparatus includes a CO₂ separation unit configured to separate the mixture, an air separation unit configured to separate air by cryogenic distillation, a water cooling tower that operates by direct contact, a line for sending water to the top of the tower, a line for sending at least one portion of the nitrogen-enriched gas stream to a lower level of the tower, a cooled water line for withdrawing cooled water from the tower and means for cooling the air upstream of the air separation unit, the cooled water line being connected to means for cooling the air upstream of the air separation unit and to the inlet and/or to the outlet of the unit for separating the gaseous mixture.

The invention discloses a siphon circulation, contraflow heat regeneration and vapor compression distillation device, which utilizes siphon circulation to replace a circulation pump so as to drive feed liquid, and condensation latent heat can be cyclically recovered, so that the investment and the power consumption of the circulation pump are saved; contraflow heat regeneration and climbing-film evaporation of the feed liquid are commonly driven by the siphon circulation and outer pressure of a pipeline, so that evaporation latent heat is provided for generating secondary steam; large-temperature rise and small-temperature difference contraflow heat regeneration is adopted, so that not only is shell-pass evaporation pressure increased to a large extent, but also tube-pass condensation pressure is reduced to a large extent, the pressure difference, the emission and the power consumption of a water vapor compressor are reduced to a large extent, and the power consumption per ton water is reduced to 5 to 8 kW*h/t to a large extent; the falling head of the siphon circulation, contraflow heat regeneration and vapor compression distillation device is fully utilized, so that a condensed water discharging pump and a feed liquid discharging pump are omitted.

A technology for reversion of FCC fraction of gasoline and simultaneous production of lower carbon alkene consists of preheating FCC fraction of gasoline to the reaction temperature, then entering the reactor filled with accelerating agent of modified zeolite molecular sieve to perform gasoline reversion reaction, cooling the reaction product to apply gas-liquid separation, in which the liquid product is modified gasoline and the lower carbon alkene product is obtained by separating gas product. The accelerating agent of modified zeolite molecular sieve is obtained by processing the zeolite molecular sieve at 600-850 DEG C with aqueous vapor for 1-24 hours. The invention has advantages that it can not only solve the problem of reduction of alkenes from FCC gasoline but also can substantially increase the product with a high added value including ethane and propylene, and the economic process technology is good.

A method for producing a slurry for a heat-resistant layer for a lithium ion secondary battery, including: a step of producing a polymer aqueous dispersion by polymerizing a monomer in an aqueous medium to give a polymer aqueous dispersion containing a polymer with a polymerization conversion rate of 90 to 100%, a step of obtaining a mixed solution by mixing N-methylpyrrolidone and the polymer aqueous dispersion, a step of obtaining a binder composition by removing an unreacted monomer and the aqueous medium from the mixed solution, and a step of obtaining a slurry by dispersing non-conductive microparticles in the binder composition, wherein the step of obtaining the binder composition includes removing the aqueous medium and the unreacted monomer by using a distillation column under a reduced pressure so that the binder composition contains the unreacted monomer and a water content in predetermined amounts.

The invention discloses a method of purifying perfluoromethyl cyclohexane. The method comprises the following steps of: (1) neutralizing a perfluoromethyl cyclohexane crude product prepared by an electrofluorination method with aqueous alkali till an upper water phase is neutral, standing for liquid separation, and transferring a lower layer organic phase to a distillation kettle, (2) performing simple distillation, (3) performing extraction, (4) performing deep fluorination: supplying fluorine and nitrogen gas mixture into components after extraction for reaction for 0.5-10h at -20-10 DEG C, supplying nitrogen to purge and replace the gas mixture, (5) performing alkali disliquid: transferring fluorinated perfluoromethyl cyclohexane into a reaction kettle, adding an alcohol-alkali-water solution at a mass ratio of 1:1:1 into the reaction kettle, performing reflux for 10h, taking and drying the lower layer organic phase, (6) performing rectification, and (7) performing multistage adsorption-desorption. The method is suitable for purifying the perfluoromethyl cyclohexane crude product prepared by the electrofluorination method, simple in flow and easy to operate; industrial production is easy to realize; the purity of a prepared product reaches 99.9% or above.

The invention discloses a microwave assisted Soxhlet extraction device. The device comprises a microwave connecting pipe, a condensing pipe, a distillation bottle and a Soxhlet extraction pipe, wherein a sample cylinder is arranged in the Soxhlet extraction pipe. The device is characterized in that the microwave connecting pipe comprise a main pipe, a branch pipe and a microwave radiator, the microwave radiator comprises a coaxial cable and a radiation head, one end of the coaxial cable is connected with a microwave source through an input terminal, and the other end of the coaxial cable penetrates a seal plug inner hole of the branch pipe of the microwave connecting pipe and a lower opening of the main pipe sequentially and is connected to the microwave radiation head; the microwave radiation head is arranged in a sample of the sample cylinder of the Soxhlet extraction pipe, the upper opening of the main pipe of the microwave connection pipe is connected with a lower opening of the condensing pipe, the lower opening is connected to an upper opening of the Soxhlet extraction pipe, and the lower opening of the Soxhlet extraction pipe is connected with the distillation bottle. According to the device, only the microwave connecting pipe is added to the existing Soxhlet extraction device, pulsed microwave energy is fed into the sample by the microwave radiator intensively, so thatthe Soxhlet extraction process is greatly accelerated, the structure is simple, the use is convenient, and the temperature is easy to control.

The invention discloses a processing method for enhancing aroma of fruit baijiu. The processing method comprises the following steps: carrying out synergistic treatment on fruit dry wine by adopting ultrasonic waves and ultraviolet rays, thus obtaining treated liquid; carrying out headspace solid-phase extraction on the obtained treated liquid, thus obtaining aroma substances, carrying out cooling, and carrying out sealed storage; carrying out pulsed electric field treatment on the raffinate after extraction, and carrying out distillation, thus obtaining base wine; and finally, adding the stored aroma substances into the obtained base wine, and carrying out low-temperature ageing, thus obtaining the fruit baijiu. The fruit baijiu obtained by adopting the processing method is rich in fruity aroma, rich in esters, refreshing ad smooth in mouthfeel, and low in content of fusel oil, and the effects of alcohol can not move to the head after a person drinks much fruit baijiu. The processing method has the advantages that the process is simple, and the cost is low.

The invention discloses a preparation method of a dye sensitizer based on phenothiazine. The method comprises the following steps: adding a molar equivalent amount of phenothiazine to a one-mouth flask, dissolving phenothiazine in DMSO, adding 2 molar equivalent amounts of a NaOH solid, carrying out room temperature stirring for 30min, adding 1.6 molar equivalent amounts of 1-bromohexadecane in a dropwise manner under the protection of nitrogen by using a dropping funnel, reacting at room temperature for 24h, carrying out reduced pressure distillation to remove the DMSO, extracting the above reactant with dichloromethane three times, and drying the above obtained organic layer with anhydrous MgSO4 for 8h. The dye sensitizer R adopting a phenothiazine derivative as an electron donor and cyanoacrylic acid as an electron acceptor is synthesized through adopting a phenothiazine molecule as a template and phenothiazine and cyanoacrylic acid as connecting groups, and the dye sensitizer R is soluble in organic solvents, such as chloroform, toluene and tetrahydrofuran. Results of nuclear magnetic resonance verification of the structure of an intermediate for synthesizing the dye sensitizer R, ultraviolet-visible absorption spectrum, fluorescence spectrum and electrochemical performance analysis of the intermediate show that the optical band gap of the intermediate is basically consistent with the electrochemical band gap, so the dye sensitizer can be used as a good luminescent material.

The invention discloses a production method of Chinese style solid whisky. The Chinese style solid whisky is produced by taking grains such as sorghum, rice, glutinous rice, corn and wheat as a raw material, adding a group of vegetable starchy auxiliary materials: a water chestnut, a gorgon fruit and a lotus seed, performing fermentation and distillation with a solid microbial mud fermentation pit, and storing raw wine with an oak barrel in a class-based manner for a long term. The novel whisky has a pit flavor of Chinese baijiu and a comfortable oak flavor of American traditional whisky, and is amber, and not turbid after ice is added, and sober-up is quick after a user drinks the whisky.

The invention provides a control system for a full-automatic analyzer, and belongs to the technical field of detection. The full-automatic analyzer comprises a steam generator device, and the control system comprises a controller; the steam generator device comprises a heating cup and a water level cup communicated with the heating cup, a heater and a first temperature sensor are arranged in the heating cup, and the first temperature sensor is used for detecting temperature information of steam in a distillation cup and supplying the temperature information of the steam to the controller; a water level sensor is arranged in the water level cup and used for detecting water level information and supplying the water level information to the controller; the controller controls the working state of the heater according to the temperature information of the steam and controls the water adding amount to the heating cup according to the water level information. According to the control system for the full-automatic analyzer, manual intervention is little, the safety is achieved in the detection process, and body injury is not prone to be caused to an operator.

The invention discloses a preparation method of a liquid crystal material of an aromatic metal polymer of which the main chain contains ferrocenyl. The preparation method comprises the following steps of 1, mixing 1,1-ferrocenyl diformyl chloride and an aromatic monomer, 2, orderly adding an organic solvent and a catalyst into the mixture in an inert gas protective atmosphere, 3, carrying out a stirring reflux reaction process at a temperature of 0 to 75 DEG C for 4 to 16 hours, 4, after the reaction, carrying out filtration, 5, carrying out reduced pressure distillation of the filtrate, 6, carrying out extraction or dissolution of the concentrate by dichloromethane, 7, washing the extract or the solution by water, or precipitating the extract or the solution by methanol, 8, collecting the organic phase, and carrying out distillation or pumping filtration to obtain precipitates, and 9, carrying out vacuum drying to obtain the aromatic metal polymer of which main chain contains ferrocenyl. The preparation method has simple processes. The product obtained by the preparation method has excellent heat stability and liquid crystal performances.