1200results about How to "Simple process equipment" patented technology

Embodiments of the present invention provide improved microfluidic devices and related apparatus, systems, and methods. Methods are provided for reducing mixing times during use of microfluidic devices. Microfluidic devices and related methods of manufacturing are provided with increased manufacturing yield rates. Improved apparatus and related systems are provided for supplying controlled pressure to microfluidic devices. Methods and related microfluidic devices are provided for reducing dehydration of microfluidic devices during use. Microfluidic devices and related methods are provided with improved sample to reagent mixture ratio control. Microfluidic devices and systems are provided with improved resistance to compression fixture pressure induced failures. Methods and systems for conducting temperature controlled reactions using microfluidic devices are provided that reduce condensation levels within the microfluidic device. Methods and systems are provided for improved fluorescent imaging of microfluidic devices.

A process and apparatus for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbons from a liquefied natural gas (LNG) stream is disclosed. The LNG feed stream is divided into two portions. The first portion is supplied to a fractionation column at an upper mid-column feed point. The second portion is directed in heat exchange relation with a warmer distillation stream rising from the fractionation stages of the column, whereby this portion of the LNG feed stream is partially vaporized and the distillation stream is totally condensed. The condensed distillation stream is divided into a “lean” LNG product stream and a reflux stream, whereupon the reflux stream is supplied to the column at a top column feed position. The partially vaporized portion of the LNG feed stream is separated into vapor and liquid streams which are thereafter supplied to the column at lower mid-column feed positions. The quantities and temperatures of the feeds to the column are effective to maintain the column overhead temperature at a temperature whereby the major portion of the desired components is recovered in the bottom liquid product from the column.

The related manufacture method for full-solid photochromic device comprises: with sol-gel method, preparing the transparent conductive layer, the photochromic layer, the ion conductive layer and the ion storage layer in turns; then assembling together. Compared with prior art, this invention is low cost and easy controlled, and fit to large-scale industrial production.

The invention belongs to the field of micron-nanometer material preparation and application, more particular relates to a multi-cavity composite micron/nanometer capsule and a multi-cavity micron/nanometer ball as well as the preparation method and device thereof. The multi-cavity composite micron/nanometer capsule is of a ball structure with micron and nanometer size, a plurality of cavities are arranged inside the ball, and the number of the cavities can be controlled; the cavities are separated and mutually independent by inner walls made of shell material; the cavities can respectively load different nuclear materials or same nuclear material, and the variety, the number and the distribution in the ball can be accurately controlled; the nuclear materials are mutually independent, do not contact mutually and do not contact with the outside environment directly; the shell material which forms the multi-cavity composite micron/nanometer capsule is different from the nuclear material; and the nuclear materials are selectively removed to obtain the micron/nanometer structure with multiple cavities. The preparation method is a multiple-fluid composite electric injection method, and the device has the characteristic that a multiple-fluid composite spray head is adopted. The multi-cavity micron/nanometer capsule provided by the invention is applied to coatings for environment sensitive materials and reactive materials, and the like.

The invention belongs to the field of high-performance carbon materials, and particularly relates to a preparation method of low-cost porous graphene. A low-cost carbon precursor and additives are adopted as raw materials, the raw materials are mixed, and low-temperature carbonization and pickling technology are adopted to prepare the porous graphene. The method has the advantages that the technology is simple, the cost is low, and industrialization popularization is easy; the obtained porous graphite is high in purity, the number of structural defects is small, and pore size distribution in uniform.

The invention discloses a process for preparing natrium bismuthate titanate based lead-free piezoelectric thick films, the steps are that (1) ceramic powder materials, constitutional formula of which is (Na0.5Bi0.5)(1-x)BaxTiO30 C04B 35/64 C04B 35/468 C04B 35/475 C04B 35/462 2 11 3 2008/1/9 101215172 2008/7/9 000000000 Huazhong University of Science & Technology Wuhan 430074 Jiang Shenglin Zhang Haibo Zeng Yike Zhong Nanhai Liu Yaoping caobao jing 42201 The Patent Agency of Huazhong University of Science and Engineering No.151 Louyu Road, Wuchang, the City of Wuhan, Hubei Province 430074

The invention discloses a method used membrane separating-electrolyzing integration to process heavy metal copper containing waste water. It includes the following step: gravity setting, micron filtering, and membrane separating. The concentrated solution is poured into the electrolytic reactor after pH value regulating to deposit heavy metal copper on its negative pole board by energizing to reduce. The residual liquid can be reused in the production technology. The invention can reclaim the metal copper from the heavy metal copper containing waste water, realize water resource reuse. In addition, it has simple device, convenient operation, high recovery ratio, comprehensive utilization ratio, good economic benefit.

The invention relates to a method capable of improving the instant dissolving performance of soybean milk powder and belongs to the technical field of soybean product processing. The method comprises the following steps: (1) adding weak alkali water into soaked soybeans according to a certain proportion for pulping and after pulping, carrying out pulp and residue separation to obtain raw soybean milk; (2) after pulsed electric field processing is performed on the raw soybean milk, adding a proper amount of emulsifier, then carrying out high-pressure steam pulp boiling to obtain cooked soybean milk, adding a proper amount of citric acid into the cooked soybean milk, then adding protease for enzymolysis, carrying out enzyme deactivation and filtering after enzymolysis, adding a certain amount of a reducing agent into the filtered soybean milk to carry out blending and uniform mixing, carrying out vacuum concentration after the blended soybean milk is homogenized, and after concentration, carrying out spray-drying and spraying of soybean phospholipid oil to obtain the instant soybean milk powder. The method has the advantages that the requires process equipment is simple, and is safe to operate; according to the method, the pulsed electric field technology and the enzymolysis technology are utilized; by the synergistic effect of the added reducing agent and emulsifier, the instant dissolving performance of the prepared soybean milk powder is improved; meanwhile, the prepared soybean milk powder has no beany flavor and bitter taste.

The invention belongs to the technical field of preparation of aerogel having a water treatment function, in particular relates to a preparation method of graphene oxide and polyvinyl alcohol hybrid aerogel. The preparation method comprises the following five processing steps: preparing a graphene oxide dispersing solution; preparing a graphene oxide/chitosan mixed solution; preparing a self-foaming solution; preparing a gel solution; preparing graphene oxide/chitosan and polyvinyl alcohol hybrid aerogel. The preparation method is characterized in that the graphene oxide and polyvinyl alcohol hybrid aerogel is prepared by fully mixing the graphene oxide dispersing solution with distilled water, glacial acetic acid and chitosan powder and then adding polyvinyl alcohol, a filling agent, a cross-linking agent, a foaming agent and a catalyst in the mixture. The graphene oxide and polyvinyl alcohol hybrid aerogel prepared by the invention is strong in water absorbing capacity, high in hydrophily and quick in adsorption rate and can be reused after regeneration and can be used for industrial wastewater treatment. The preparation method of the graphene oxide and polyvinyl alcohol hybrid aerogel, disclosed by the invention, has the advantages that the principle is simple, the operation is easy, processing equipment is simple, the cost of raw materials is low, and the preparation method is beneficial for industrialization.

The invention relates to the semiconductor photoelectric material field, and provides a preparing method for transparent conductive oxide film. The method includes the following steps: step one, obtaining a sol solution of zinc salt or indium salt and doped metal salt, wherein, viscosity of the sol ranges from 15m Pa.s to 20 m Pa.s, concentration of zinc or indium in the zinc salt or the indium salt ranges from 0.1 mol/L to 1 mol/L, the mole ratio of zinc and the doped metal salt is between 0.001 and 0.03, and the mole ratio of indium and the doped metal salt is between 0.05 and 0.15; step two, immersing media into the sol solution and allowing the mixture to stand for 1s to 30s, pulling the media out of the sol solution at a speed of 1 cm/min to 300 cm/min, maintaining the media for 0.5 min to 30 min at a temperature in a range of 80 DEG C to 300 DEG C, and cooling the media; step three, repeating step two till the thickness of the film on the media achieves the required thickness, and obtaining the transparent conductive oxide film. The transparent conductive oxide film prepared through the method has the advantages of being high in rate of finished products, capable of preparing film with large areas, high in material using ratio, and suitable for mass production.

The invention discloses doped-state polyaniline epoxy paint and a preparation method thereof. The preparation method includes following steps: preparing doped-state polyaniline in a manner of chemical polymerization with ammonium persulfate being an oxidizing agent and phosphoric acid being a doping agent, preparing intrinsic-state polyaniline through a dedoping process, carrying out a secondary doping reaction between the intrinsic-state polyaniline and dodecylbenzene sulfonic acid to prepare secondarily-doped-state polyaniline, mixing the secondarily-doped-state polyaniline with epoxy resin to prepare the polyaniline epoxy paint having a good anti-corrosion performance. In the technical scheme of the invention, a coating prepared from the secondarily-doped-state polyaniline not only has a high electrical conductivity but also has a high anti-corrosion performance. The preparation method is simple in required processing equipment, is relatively low in cost and is easy to achieve industrialization.

The invention relates to a denitration system and method for sintering flue gas without using ammonia as a reducing agent. The system comprises a sintering machine, and a heater, a denitration reactor, a deduster, a blower fan, a desulfurization tower and a chimney sequentially connected with the sintering machine. The denitration reactor is arranged before the deduster; that is, the deduster is arranged between the heater and the denitration reactor. A catalyst layer is provided in the denitration reactor. The method comprises the following steps that: sintering flue gas is heated by the heater to an appropriate temperature before the deduster and is sent to the denitration reactor; NOx is removed by a catalytic reduction in the denitration reactor under the influence of a catalyst, wherein the chemical equation for the removing of NOx is 2NO +2CO =N2 + 2CO2; the reacted sintering flue gas is emitted into the atmosphere after dedusting and desulphurization. According to the invention, the ammonia reducing agent needs not to be added, the catalyst is widely available and cheap, and investment and operation cost needed is low; the reducing agent used in the invention is CO reduction ingredients in the sintering flue gas instead of ammonia, thereby avoiding many problems resulting from the utilization of an ammonia reducing agent.

The invention discloses a flue gas composite phase change dust removal and desulfurization device. The device comprises a desulfurizing tower (10). The lower portion of the side wall of the desulfurizing tower (10) is connected with an inlet flue (11). The upper portion of the side wall of the desulfurizing tower (10) is connected with an outlet flue (12). A vortex phase changer (13) is arranged on the inlet flue (11) of the desulfurizing tower (10) and comprises a plurality of sets of atomization nozzles (18). The atomization nozzles (18) are symmetrically arranged on the side wall of the inlet flue (11). Openings of the atomization nozzles (18) face the interior of the inlet flue (11) and are eccentrically arranged relative to the inlet flue (11). Spraying water sprayed by the atomization nozzles (18) in the vortex phase changer (13) can enable flue gas in the inlet flue (11) to generate rotational flow. The invention further discloses a flue gas composite phase change dust removal and desulfurization technology. The composite phase change condensation principle is utilized for enabling supersaturated water vapor to be condensed on the surfaces of fine particles, and the fine particle collection efficiency of the desulfurizing tower is improved.

The invention discloses a method for connecting ceramic and ceramic, and ceramic and metal. The method comprises the following steps of: 1) forming a compact aluminum or aluminum alloy thin film with thickness of several to tens of microns on a connecting surface of the ceramic to obtain the ceramic with the connecting surface covered by the aluminum or aluminum alloy thin film; and 2) connectingthe ceramic with the connecting surface covered by the aluminum or aluminum alloy thin film and the metal by using the aluminum or aluminum alloy thin film, or connecting the ceramic with the connecting surface covered by the aluminum or aluminum alloy thin film and the ceramic with the connecting surface covered by the aluminum or aluminum alloy thin film by using the aluminum or aluminum alloy thin film. Compared with the prior art, the method has the advantages that: oxide inclusion originated from an aluminum surface oxide film is not formed on the interface between the aluminum film and the ceramic, which is formed by the method, the ceramic is firmly connected with the ceramic or the metal and the ceramic and the metal do not fall off easily, and the separating and peeling strength between the thin film and a ceramic chessboard is greater than or equal to 4.1N/cm. After an aluminum brazing process or an aluminum or aluminum alloy workpiece connection are adopted, defects of the connecting interface of the aluminum or aluminum alloy workpiece and the ceramic are avoided, the 90-degree tear strength of the connection can reach over 12kg/cm, fracture does not occur on the interface, and the ceramic and metal are connected very firmly.

The invention discloses a low-cost carbon graphene sheet and a preparation method thereof. The preparation method comprises the following steps of: mixing a carbon material (coal, coke, resin carbon, graphite, bamboo charcoal or active carbon) as a raw material and an additive; then preparing the graphene sheet through processes, namely vacuum carbonization, pickling, ball milling, and the like, at low cost. The graphene sheet prepared through the preparation method disclosed by the invention has the advantages of less structural defect, low preparation cost, easiness for operation, greenness, environmental protection, easiness for industrialization and outstanding economic and social benefits.

The invention discloses a method for numerously preparing a graphene material, which takes asphalt as a raw material and comprises the processes of preparing, pyrolyzing and carrying out carbonization. Compared with the conventional preparation of the graphene material, the method disclosed by the invention has low preparation cost, little equipment investment, simplicity for operating, no pollution, and easiness for realizing industrialization; and in addition, the purity of a product is high, the structure defect of the product is little, and the performance of the product is excellent.

The invention discloses nano-composite electric conduction anticorrosive paint and a preparation method thereof. The preparation method is characterized in that firstly organic acid dodecylbenzene sulfonic acid is used as a doping agent so as to overcome the low solubility of doped polyaniline, a carbon nanotube is used for improving the electric conductivity of composite powder, and then the carbon nanotube is compounded with a precursor of organic acid dodecylbenzene sulfonic acid doped polyaniline and epoxy resin so as to prepare the nano-composite electric conduction anticorrosive paint. According to the technical scheme, the polyaniline/carbon nanotube and the epoxy resin are compounded, so that the excellent characteristics of the polyaniline/carbon nanotube and the epoxy resin are organically combined together. The nano-composite electric conduction anticorrosive paint has relatively high electric conduction performance and very high anticorrosive performance and is relatively low in cost; required processing equipment is simple; the industrialization of the nano-composite electric conduction anticorrosive paint is easy to realize.