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467results about How to "Remove completely" patented technology

Novel dyeing and finishing processing technology of micro polyester fabric

The invention relates to a novel dyeing and finishing processing technology of a micro polyester fabric. The novel dyeing and finishing process disclosed by the invention is characterized by comprising the following steps of: (1) pretreatment, namely carrying out cold rolling and stacking processing comprising three stages, namely cold stacking, hot alkali treatment and high efficiency washing, on polyester gray fabric; (2) presetting, namely carrying out high temperature tentering and presetting on a pretreated fabric white body by utilizing a setting machine; (3) dyeing, namely dyeing the preset fabric white body by adopting superfine fiber leveling agent; and (4) cleaning, namely carrying out cleaning post-processing on the dyed fabric to remove disperse dyes which are not set after fibres are dyed. According to the novel dyeing and finishing processing technology disclosed by the invention, an environment-friendly and low-energy-consumption cold rolling and stacking pretreatment technology is used for carrying out pretreatment on the micro polyester fabric, on one hand, desizing effect is good and good dyeing and finishing processing conditions are provided for dyeing, and on the other hand, crease mark of the fabric can be effectively reduced; meanwhile, a formula of a dyeing process additive can be adjusted, albafluid U is added to reduce fabric dyeing scratch, and dyeing defects can be prevented from being caused.
Owner:SHENGHONG GRP CO LTD

Method for producing light olefins and monocyclic aromatic hydrocarbons from heavy hydrocarbons

The invention provides a method for producing light olefins and monocyclic aromatic hydrocarbons from heavy hydrocarbons. The method produces qualified catalytic cracking raw materials through hydrogenation by taking wax oil and residual oil as raw materials, returns light cycle oil and heavy cycle oil which are catalytic cracking by-products to a hydrogenation unit for the catalytic cracking rawmaterials at the same time, hydrogenates the catalytic cracking by-products together with the catalytic cracking raw materials, and then takes the obtained product as the catalytic cracking raw materials to produce light olefins and monocyclic aromatic hydrocarbons. By introducing the residual oil before a second reaction zone of hydrogenation, the method widens the sources of the catalytic cracking raw materials, increases the processing amount of low-value residual oil, and solves the problem of the heat balance of catalytic cracking units. The light and heavy cycle oil of catalytic cracking is introduced into the hydrogenation unit, hydrogenated and then taken as the catalytic cracking raw materials, so that the yield of high-value products of the catalytic cracking units can be increased, and the deactivation of hydrogenation catalysts is delayed.
Owner:CHINA PETROLEUM & CHEM CORP +1

Water treatment method of zero-valent iron-copper bi-metal activated persulfate

The invention discloses a water treatment method of zero-valent iron-copper bi-metal activated persulfate. The water treatment method specifically comprises the steps that bi-metals including zero-valent iron and copper are added into water containing micro-pollutants, then persulfate is added, full mixing is performed, the bi-metals including the zero-valent iron and the copper are utilized to activate the persulfate so as to remove the micro-pollutants in the water. The water treatment method utilizes the bi-metals including the zero-valent iron and the copper to efficiently activate the persulfate so as to produce free sulfate radicals having strong oxidizing property, can achieve the purpose of quickly and thoroughly removing micro-pollutants, including multiple types of poisonous and harmful micro-pollutants in water, such as polychlorinated biphenyl, brominated flame retardants, drugs and personal care products (PPCPs) and algal toxin, and has the advantages of high activation efficiency, high oxidation and degradation efficiency of pollutants, wide pH using range, convenient operation and the like. The water treatment method can be applied to underground water remediation, treatment of industrial water (including electroplating wastewater, hospital wastewater, printing and dyeing wastewater and the like), drinking water treatment, wastewater treatment and the like.
Owner:SUN YAT SEN UNIV

Processing method for vacuum drying impregnation of capacitor

The invention discloses a processing method for vacuum drying impregnation of a capacitor. The method comprises the following steps of heating a power capacitor to 80-90 DEG C; cooling the internal temperature of the power capacitor to 70-80 DEG C, and improving the vacuum degree of the gas partial pressure in a vacuum tank to 0.5-1 Pa step by step; opening an ultrasonic generating component which is arranged on the external wall of the power capacitor, and cooling the internal temperature of the power capacitor to 40-60 DEG C, and reducing the gas partial pressure of the vacuum tank at 0.2-0.5 Pa, and meanwhile slowly pouring insulating medium oil in the power capacitor shell for 8-22 h; after the internal part of the power capacitor is filled with the insulating medium oil, maintaining the opening state of the ultrasonic, reducing the internal temperature of the power capacitor, maintaining the internal temperature at 30-40 DEG C, and controlling the vacuum degree of the gas partial pressure in the vacuum tank about 0.2-0.5 Pa. According to the processing method provided by the invention, the gas integrated into the insulation medium oil and the local few low vacuum gas which is sealed between solid medium layers and between medium and aluminum foil layers by the insulation medium oil can be exhausted more easily.
Owner:ENERTECH SUZHOU ENERGY TECH CO LTD

Method for treating water by using zero-valent iron-nickel bi-metal activated persulfate

InactiveCN105198067ASolve the problem of low production volumeRemove completelyWater/sewage treatment by oxidationSulfate radicalsPolychlorinated biphenyl
The invention discloses a method for treating water by using zero-valent iron-nickel bi-metal activated persulfate. According to the method, the zero-valent iron-nickel bi-metal activated persulfate is used, and micropollutants in the water are removed. The zero-valent iron-nickel bi-metal activated persulfate is used for efficiently generating high-oxidizing-property sulphate radical and high-oxidizing-property hydroxyl radical to attack the micropollutants, the micropollutants are degraded, and the purpose of quickly and thoroughly removing various poisonous and harmful micropollutants such as polychlorinated biphenyl, brominated flame retardants, medicines, personal care products (PPCPs) and algal toxin can be achieved. Compared with the existing the method for treating water by using zero-valent iron activated persulfate, the method has the advantages of high activating efficiency, high yield of the sulphate radical, high micropollutants removing efficiency and the like, is convenient and easy to operate, obvious in effect and wide in pH (potential of hydrogen) using range, and can be used for ground water remediation, treatment of industrial water comprising electroplating wastewater, wastewater of hospitals, printing and dyeing wastewater, treatment of drinking water, treatment of sewage and the like.
Owner:SUN YAT SEN UNIV

Method and system for recovering lithium and manganese from waste lithium manganate battery

The invention discloses a method and system for recovering lithium and manganese from a waste lithium manganate battery. The method comprises the following steps that a positive plate is disassembledfrom the waste lithium manganate battery; a binder in the positive plate is removed, valuable metal elements in the positive plate are leached by acid dissolution, and acidified leachate is obtained;ultrafiltration treatment is carried out on the acidified leachate by using an ultrafiltration membrane; by using a nanofiltration membrane technology, lithium ions in the acidified leachate are separated from other cations different from lithium ions, a solution containing lithium and a solution containing other cations are obtained, and then a reverse osmosis technology is adopted for concentration and enrichment correspondingly, wherein the other cations comprise manganese ions; and a lithium precipitant is adopted to precipitate and separate lithium ions in the lithium-containing solution,and alkaline substances are adopted to precipitate and separate manganese ions in the solution containing other cations, so that the recovery of lithium and manganese is realized. According to the method and system, the ultrafiltration-nanofiltration-reverse osmosis combined technology is adopted, and the method and system have the beneficial effects of simple process, environmental protection, less acid and alkali consumption, good and stable membrane separation effect and the like.
Owner:青海中科德方能源科技研究有限公司

Polyester enamelled wire enamel removing process and device

The invention relates to a polyester enamelled wire enamel removing process. The process includes following steps: 1), adding an enamel removing agent into an alkaline liquid tank, heating enamel film treatment temperature of a polyester enamelled wire, wherein the enamel removing agent is a sodium hydroxide and/or potassium hydroxide inorganic alkaline solution of 10-40% in mass concentration; 2), pumping the enamel removing agent in the alkaline liquid tank into the bottom of an enamel removing bucket with a stirring paddle, and placing the polyester enamelled wire to be subjected to enamel removing into the enamel removing bucket; 3), starting stirring after overflowing, and enabling rotating speed to be 30-300 rpm, wherein a shedding enamel film overflows along with the enamel removing agent from an overflowing tank at the top of the enamel removing bucket and flows into a filtering bucket; 4), separating the shedding enamel film from the enamel removing agent in the filtering bucket, wherein the enamel removing agent continues entering the alkaline liquid tank. The invention further relates to a polyester enamelled wire enamel removing device. The polyester enamelled wire enamel removing process and device is convenient to operate, wide in application range, good in enamel removing effect, free of volatilization, little in metal base material corrosion and capable of realizing mass enamel removing.
Owner:ZHEJIANG UNIV

Novel tunnel kiln structure and method for tunnel kiln to process organic polluted soil

The invention provides a novel tunnel kiln structure and a method for processing organic polluted soil. The method comprises the steps of detecting types and contents of mineral substances in the organic polluted soil, then adding required materials according to the tile firing requirements or the firing requirements, adding internal fuel, adding water to mix the materials to obtain raw pug materials, sequentially pugging, pelletizing, extruding and forming the raw pug materials, decaying or curing the raw pug materials for 5-10 days, drying the raw pug materials, sending the raw pug material into the tunnel kiln to be fired, sequentially keeping green bricks or green tiles in a preheating zone kiln body at the temperature of 150-750 DEG C for 30 minutes to 1 hour and in a firing zone kiln body at the temperature of 750-1350 DEG C for 2-3 hours, then sending the green bricks or the green tiles into a cooling zone kiln body to be naturally cooled to the normal temperature and outputting the green bricks or the green tiles. The method can completely remove toxic substances like various pesticide residues in the soil through high temperature and is high in processing efficiency, low in cost, free of secondary pollution and obvious in environmental-friendly benefit.
Owner:WUHAN HUIZHONG DACHUAN AUTOMATIC CONTROL EQUIP CO LTD

Electrical heating anti-icing assembly with superhydrophobic property and preparation method of electrical heating anti-icing assembly

The invention discloses an electrical heating anti-icing assembly with a superhydrophobic property and a preparation method of the electrical heating anti-icing assembly. The anti-icing assembly comprises an insulation heat insulating layer, an electrically heating layer, an insulation heat conduction layer, a heat conduction metal layer, a superhydrophobic coating and waterproof adhesive tape, wherein the insulation heat insulating layer, the electrically heating layer, the insulation heat conduction layer, and the heat conduction metal layer are successively spliced from bottom to top, the superhydrophobic is coated on the surface of the heat conduction metal layer, and the waterproof adhesive tape is sealed around the assembly. The electrical heating anti-icing assembly with the superhydrophobic property has the beneficial effects that the anti-icing assembly has the superhydrophobic property and can remarkably reduce the adhesive strength of a surface ice layer, thus formation of the surface ice layer and removing difficulty of the ice layer can be reduced in a certain level, the ice layer covered on the surface can be removed quickly and completely, heating time is shortened,the removing efficiency of the ice layer is greatly improved, waste of energy is reduced, and great application prospects are provided for equipment such as an airplane in the ice removing field.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Preparation for humic-acid-contained water-soluble fertilizer by utilizing molasses alcohol fermentation liquid

The invention discloses preparation for a humic-acid-contained water-soluble fertilizer by utilizing molasses alcohol fermentation liquid. The preparation comprises the following steps: using molasses fermentation liquid with a brix of 45 to 75% as a main raw material, adding biological bacteria with a weight accounting for 0.5 to 5% of the weight of the molasses fermentation liquid, carrying out uniform mixing and then carrying out placing in a fermentation pool, carrying out fermentation at 30 to 60 DEG C for 32 to 40 hours, then carrying out high-temperature inactivation at 200 to 250 DEG C, adding a water-soluble nitrogen fertilizer, a water-soluble phosphate fertilizer and a water-soluble potash fertilizer with a total weight accounting for 15 to 40% of the weight of the molasses fermentation liquid, and carrying out filtering and removing sediments so as to obtained the humic-acid-contained water-soluble fertilizer. According to the invention, rich humic acid, organic matters, amino acid and plant-needed trace elements like nitrogen, phosphorus and potassium contained in the molasses fermentation liquid are utilized to effectively improve soil, so the organic matters are increased; fertilizer efficiency is strengthened; growth of plants is promoted; and requirements for integration of water and fertilizers in modern agricultural science and technology can be met; meanwhile, useful substances like the trace elements, the organic matters, amino acid and humic acid in the molasses fermentation liquid are fully utilized to return to a field, so wastes are turned into treasures.
Owner:广西中以水肥一体生物科技有限公司

Pretreatment method of epoxy type plasticizer production wastewater

The invention provides a pretreatment method of epoxy type plasticizer production wastewater. The pretreatment method is characterized by comprising the following specific steps: step one, conducting acidification and demulsification on the epoxy type plasticizer production wastewater, conducting microporous aeration and oil removal firstly, removing oil by utilizing a full-automatic oil scraper, and adjusting the pH value of wastewater to be 4.5-5.5; and step two, pumping the wastewater treated by the step one into an air floatation device for air floatation treatment, wherein the chemical adding sequence in the operation of the air floatation device is as follows: adding polymeric aluminum firstly, then adding alkali liquor to adjust the pH value to be 7.5-8.5, and finally adding anionic polyacrylamide, and water discharged from the air floatation device is filtered by quartz sand; and step three, filling the wastewater treated in the step two to be full of a natural manganese sand filter tank by a mode of feeding from the lower part and the discharging from the upper part so as to remove residual hydrogen peroxide in the wastewater to obtain the pre-treated epoxy type plasticizer production wastewater. The pretreatment method has the advantages that the oil can be removed thoroughly, floatation slag generated by air floatation is obvious, the volume of the floatation slag is small after the floatation slag is discharged into a sludge drying bed to be concentrated, the treatment is easy and the like.
Owner:浙江嘉澳环保科技股份有限公司

Automatic bale breaker

The invention discloses an automatic bale breaker which comprises a bale breaking device, a feeding end assembly, a screening device, a discharging device and a drive device. The bale breaking device comprises a bale breaking shell assembly, an upper cutting device and a lower cutting device. The feeding end assembly is installed below the bale breaking device, the screening device comprises a screening cylinder and a box body, the discharging device comprises a discharging assembly and a bag outlet assembly, the drive device comprises a machine frame, a speed reducer, a driving assembly and a driven assembly, a cutter clamp is arranged between the upper cutting device of the bale breaking device and the lower cutting device of the bale breaking device, and a carrier roller is arranged in an inlet of the bale breaking device. The screening cylinder comprises screening cylinder guide rails and roller blades, the screening cylinder guide rails are arranged at the two ends of the screening cylinder, and the roller blades are arranged on the inner side face of the screening cylinder. On the basis of the principle of screening cylinder rotating type conveying and separation, double-shaft multi-blade crossed type cutting is utilized by the automatic bale breaker, and the aims of automatically breaking the bale and automatically discharging the bale are achieved.
Owner:ZHEJIANG BORETECH

Adsorption purification unit and adsorption recycling device for recycling organic solvent from waste gas

The invention relates to an adsorption purification unit for recycling organic solvent from waste gas, comprising a shell and an active carbon bed layer filled in the shell, the side wall of the shell is provided with an air inlet and an air outlet, the two ends of the active carbon bed layer are provided with electrodes, an elastic compacting device is arranged between the shell and the active carbon bed layer, the active carbon bed layer is internally provided with electric couplers, and the electrodes and the electric couplers are respectively connected with an electrothermal controllers. In the invention, granular active carbon is adopted as adsorbent, the loading density is high, the adsorption capacity is high, the work cycle is long, the loss caused by loading density of activated carbon fibers and frequent adsorption-desorption switching on equipment can be avoided, the replacement cycle of the adsorbent is long, and the maintenance cost is low; the recycled solvent contains no water, the purity is high, and the quality is high, thus the solvent can be directly recycled for production; no waste water is produced, no secondary pollution is caused, and discharge reaching thestandard can be realized; the energy consumption is low, the operating cost is low, and the adsorption purification unit can be applied to recycling of high-boiling point solvent, thus the application field of solvent recycling equipment is expanded.
Owner:ZHENGZHOU ZHONGSIDA ENVIRONMENTAL TECH +1

Extraction and purification method of polysaccharide from Polygonatum kingianum

InactiveCN107827995AEfficient extractionThe extraction method worksPurification methodsFreeze-drying
The invention discloses an extraction and purification method of polysaccharide from Polygonatum kingianum, comprising the following steps: degreasing crude powder of a Polygonatum kingianum medicinalmaterial, carrying out water extraction for three times (40 min for each time), mixing filtrates, carrying out reduced pressure concentration at 60 DEG C to 1: 1.5, and carrying out alcohol precipitation for two times; mixing precipitates, and freeze-drying to obtain crude polysaccharide from Polygonatum kingianum; preparing a 0.3-0.5 g/mL solution by the use of the crude polysaccharide from Polygonatum kingianum, and carrying out depigmentation by loading the solution into D-101 macroporous resin; removing protein in the crude polysaccharide from Polygonatum kingianum by an isoelectric pointmethod; and carrying out dialysis by placing the protein-removed crude polysaccharide solution into a dialysis bag. By the method of the invention, polysaccharide in Polygonatum kingianum can be extracted effectively, impurities such as pigment, protein, micromolecular substances and the like in polysaccharide can be more thoroughly removed, and the structure of polysaccharide will not be damaged. In addition, use amount of an organic reagent is reduced, and polysaccharide purity is raised. The invention is an innovation of a purification method of polysaccharide from Polygonatum kingianum.
Owner:DALI UNIV
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