56results about How to "Fast extraction rate" patented technology

The invention discloses a microwave-assisted subcritical essential oil extracting method. The microwave-assisted subcritical essential oil extracting method includes the steps that fresh plant tissues are frozen and then are smashed; 1,1,1,2-tetrafluoroethane is used as an extraction solvent and is led into the smashed plant tissues to perform microwave extraction; during microwave extraction, the extraction temperature is controlled to be 8-12 DEG C, the extraction pressure is controlled to be 0.8-6 Mpa, the microwave frequency is controlled to be 300-2400 MHZ, and the power is controlled to be 200-1200w; after a liquid phase in the system is separated out and microwave extraction is completed, the 1,1,1,2-tetrafluoroethane is recovered from the liquid phase, and the rest of the liquid phase is an essential oil stock solution; the essential oil stock solution is subjected to molecular distillation to obtain essential oil. By the adoption of the microwave-assisted subcritical essential oil extracting method, the essential oil free of any residual solvent can be obtained at lower temperature, the effective ingredients of the essential oil are not destroyed, and the natural quality of the essential oil can be kept to the most degree.

The invention provides a web information extraction method aiming to solve the problems of high complexity and low accurate rate of an existing information extraction method. The method includes the steps that an HTML source code is obtained and loaded to a first memory zone; an HTML parser is built, the HTML source code is parsed in combination with page label distribution, and parsed data are stored to a second memory zone; unit windows are defined, the unit windows are moved to conduct primary feature statistics on data in the windows, voice variance and text similarity are sequentially adopted to serve as secondary features to further remove noise, and the density quantitative value of all the windows is obtained; the relation between the density threshold and the text density of all the windows is concluded according to sample data, and a reasonable extraction scheme is formulated; finally, a text integration module is entered, and a text with a normative format is output. Above all, a loading-parsing-quantizing-selecting-outputting processing scheme is adopted for the HTML source code, different web pages are adapted automatically according to the text density relative value, a great number of web pages can be processed, and webpage information is extracted automatically.

The invention discloses a method for extracting and separating molybdenum (VI) in an aqueous solution. The method is mainly characterized in that a non-ionic surface active agent, the molybdenum-containing aqueous solution, a saline solution and deionized water are mixed and stirred evenly, the concentration of the non-ionic surface active agent is 50-300 g/L, the concentration of molybdenum is 1-40 g/L, and the salt concentration is 50-300 g/L; the pH value is adjusted to 1-4, the mixture is subjected to still standing and phase separation after being stirred for 10-60 min at 25-80 DEG C, phase separation is conducted for 10-60 min, an aqueous two-phase system with the upper phase being a non-ionic surface active agent phase loading the molybdenum and the lower phase being an aqueous phase, and the concentration of the molybdenum in the non-ionic surface active agent phase loading the molybdenum is 2-80 g/L; the reextraction temperature is 25-80 DEG C, the time is 10-60 min, phase separation is conducted for 10-60 min, the phase ratio of the non-ionic surface active agent phase loading the molybdenum to an ammonium sulfate aqueous solution is 1 to 5, and the reextraction product is ammonium molybdate. According to the method, the extraction rate is high, good phase separation is achieved, the molybdenum extraction rate reaches 95% or above, and the molybdenum reextraction rate reaches 95% or above.

The invention discloses a preparation method of compound liquid enzymes. The preparation method comprises the following steps: taking papaya cores, longan cores, litchi cores, peach core and mango cores in parts by weight, then mixing, crushing, soaking in aqueous ethanol, taking soak solution, diluting by water and filtering to obtain the first separated liquid; taking grapes, apples, oranges, pitayas, sugar orange peels, tomatoes, papaya, Hami melon, pomelo flesh, peach flesh, hawthorn fruits, mulberries and brown sugar solution in parts by weight, then mixing aeating to pulp and fermenting the pulp to obtain the first fermentation broth. According to the preparation method, the raw materials not only comprises the fruits with rich nutrients, such as the Hami melon, the pomelo flesh, the peach flesh, the hawthorn fruits, the mulberries and the like, but also comprises three Chinese herbal medicines with very good medical values, including rhizoma polygonati, root of Japanese stemona and asparagus root; the rhizoma polygonati has very good treatment effects to stomach weakness, spleen weakness, body weakness and tiredness and functions of strengthening bone and musculature and invigorating spirit and marrow; the root of Japanese stemona and the asparagus root have very good effects in moistening the lung, relieving cough and eliminating sputum; thus, the compound liquid enzymes have very good health-care effects.

The invention discloses a pore forming agent removal method of a battery diaphragm and a preparation process of a lithium ion secondary battery diaphragm. The pore forming agent removal method of thebattery diaphragm comprises the following steps: pretreating a diaphragm substrate by virtue of a device, and removing at least a part of pore forming agent in the diaphragm substrate in advance; andextracting the pretreated diaphragm substrate by virtue of ultrasonic extraction, extracting the pore forming agent, and ensuring that the residual rate of the pore forming agent of the finally prepared battery diaphragm is less than 1 percent. By adopting the pore forming agent removal method of the battery diaphragm and the preparation process of the lithium ion secondary battery diaphragm, theextraction speed of the battery diaphragm can be increased on the premise of not increasing the length of a battery production line, not improving the device precision and not improving the personal skill; and moreover, the method is particularly suitable for extracting a thicker diaphragm substrate and solves the problem that the thicker substrate is difficult to extract.

The invention relates to a preparing method for traditional Chinese medicine extract, in particular to a preparing method for acanthopanax senticosus extract. The preparing method comprises the steps that acanthopanax senticosus is subjected to countercurrent extraction through 40%-70% ethyl alcohol, line-sulfur treatment, alcohol precipitation, sterilization ultrafiltration belt type drying and other procedures, and the acanthopanax senticosus extract is prepared. By means of the method, impurities in the acanthopanax senticosus extract can be remarkably reduced, and the purity of effective ingredients in the acanthopanax senticosus extract and the safety and stability of the acanthopanax senticosus extract can be improved; meanwhile, the extraction cycle can be shortened, energy can be saved, high efficiency can be achieved, and the preparing method is especially suitable for industry production.

Provided is a method for extracting and separating vanadium from an aqueous solution. The method mainly comprises the steps that a non-ionic surface active agent with the concentration being 50-200 g/L, the vanadium-bearing aqueous solution with the concentration being 0.5-30 g/L, a saline solution with the concentration being 50-100 g/L and deionized water are mixed, the pH value is adjusted to be 1-3, the mixture is stirred for 10-60 min at the temperature of 25-80 DEG C, standing for phase splitting is conducted for 10-60 min, and a dual-water-phase system with the upper phase being the vanadium-bearing non-ionic surface active agent phase and the lower phase being the water phase is obtained; and an ammonium sulfate or ammonium nitrate or ammonium chloride aqueous solution is added to the vanadium-bearing surface active agent phase, the ratio of the vanadium-bearing non-ionic surface active agent phase (O) to the water phase (A) is 1-5, the pH value is adjusted to be 8-10 with ammonium hydroxide, and then the mixture is put into a constant-temperature water path boiler with the temperature being 25-80 DEG C to settle for 10-60 min. The method is high in extraction speed, phase separation is good, a third phase and emulsification are both avoided, the method is nontoxic and harmless relative to the environment, the dual-water-phase system is complete in phase splitting, the extraction rate of vanadium reaches 95% or over, and the deposition rate of ammonium metavanadate reaches 90% or over.

The invention provides a method for determining the content of a heavy component in coal liquefaction products. The determination method comprises the following steps: S1, putting a coal liquefaction product sample and an extraction solvent into a seal device; S2, extracting the heavy component in the coal liquefaction product sample by utilizing the extracting solvent so as to obtain the heavy component at the extracting temperature of 25-200 DEG C; and S3, calculating the weight percentage of the heavy component in the coal liquefaction product sample. The method can be used for rapidly and accurately determining the content of the heavy component in the coal liquefaction products.

Provided is a method for extracting and separating tungsten from an aqueous solution containing tungsten. Mainly, a nonionic surface active agent, the aqueous solution containing tungsten, a brine solution and deionized water are mixed and stirred uniformly; the mass fraction of the nonionic surface active agent is 10-20%, the mass fraction of tungsten is 0.1-3%, and the mass friction of salt is 6-12%; the pH value is adjusted to 2-3, after stirring is performed at 30-60 DEG C for 10-60 min, standing and phase splitting are performed, phase separation is performed for 10-60 min, and a dual-water-phase system with the upper phase being a nonionic surface active agent phase loaded with tungsten and the lower phase being a water phase is obtained; the reextraction temperature is 40-70 DEG C,time is 20-60 min, phase separation is performed for 20-60 min, the phase ratio of the nonionic surface active agent phase loaded with tungsten and the ammonium carbonate aqueous solution phase is 1-4: 1, and reextraction products are ammonium tungstate. The method is high in extraction speed and good in phase separation, the tungsten single-stage extraction rate reaches 98% or above, and the tungsten single-stage reextraction rate reaches 97% or above.

The invention relates to the technical field of waste mineral oil solvent extraction, in particular to refining equipment based on waste mineral oil solvent extraction. The equipment comprises a reinforcing device, an extraction device is arranged at the top of the reinforcing device, a cleaning device is arranged at the circle center of the bottom in the extraction device, a discharging device is arranged on one side of the extraction device, the extraction device comprises a mixed extraction tower with an annular interlayer arranged on the inner wall, and a clamping device is arranged at the top of the mixed extraction tower, a stirring device is arranged at the top of the clamping device and comprises a stirring motor, a heating device is arranged at an interlayer of the inner wall of the mixed extraction tower, an existing waste mineral oil extraction device cannot treat an extraction agent, the utilization rate of the extraction agent is low, and the extraction efficiency is low, and the extraction agent needs to be treated to be fully mixed with waste mineral oil to play a role, and the existing waste mineral oil is easily adhered to the inner wall of the extraction device and is difficult to clean, so that the service life of the device is shortened.

The invention relates to the technical field of metallurgy, and provides a method for extracting and separating tungsten and molybdenum from an aqueous solution. According to the method, a tungsten-molybdenum mixed aqueous solution, a nonionic surfactant, a complexing agent, sodium sulfate and water are mixed, the pH value of the mixed solution is adjusted to be smaller than or equal to 3, an aqueous two-phase extraction system is obtained, an upper phase and a lower phase are obtained through stirring and standing phase splitting, the upper phase is a tungsten-rich nonionic surfactant phase, and the lower phase is a molybdenum-rich aqueous phase. Under the acidic condition, tungsten mainly exists in the form of paratungstate B anions, molybdenum exists in the form of paramolybdate ions, a hydrophilic complex is formed by the complexing agent and the paramolybdate ions, therefore, molybdenum is left in the aqueous phase, the paratungstate B anions enter the nonionic surfactant phase by means of the high hydrophobicity of the paratungstate B anions, and efficient separation of tungsten and molybdenum is achieved. The method provided by the invention has the advantages of high extraction rate, high separation efficiency, no emulsification phenomenon, no use of any toxic, harmful, flammable, explosive and volatile organic solvents, simple operation and environmental protection.

The invention discloses a western medicine component extraction device. An outlet end of a liquid storage tank communicates with an inlet end of the extraction tank through a pipe. A condensing memberis arranged obliquely, an inlet end of the condensing member communicates with a gas outlet end of the side wall of the extraction tank through a pipe, and an outlet end of the condensing member communicates with an liquid inlet end of a collecting tank through a pipe. The gas outlet of the collection tank communicates with the pump body through a pipeline. A heating element is fixedly connectedwith the extraction tank. A first ultrasonic control element is fixedly connected to the extraction tank. A first ultrasound sheet is fixedly connected to the extraction tank. One end of the liquid outlet pipe communicates with the extraction tank, and is located on a side wall at the bottom end of the extraction tank. The other end of the liquid outlet pipe is fixedly connected with a switch valve. The device achieves the objects of improving extraction effect and efficiency of western medicine component extraction.