39results about How to "Reduce reaction volume" patented technology

The present invention provides a thermal cycling device including: a heat exchanger body (3) having a longitudinal axis and longitudinally divided to provide at least two segments which are able to be heated to different temperatures so that said body has peripheral surfaces of different temperatures; a conduit (2) extending about said body so as to be in thermal contact with said peripheral surfaces; a first delivery device to deliver a first fluid to said conduit to cause said fluid to pass therealong and therefore change in temperature as the fluid passes said segments; and a second delivery device to deliver a second fluid to said conduit so as to flow with said first liquid and therefore also change in temperature. The fluid then leaves the device by conduit (4). The invention also is directed to an injector means for use in the thermal cycling device of this invention, comprising: a septum (26); a needle (20) which is able to pierce the septum; a reservoir (27) in fluid contact with septum (26) having an inlet (28) and an outlet (30); wherein when in use, the needle is urged through the fluid in said reservoir and then through the septum while continually purging the reservoir with said purge fluid. The present invention also includes a scanning detector (5) fitted to the outside of the heat exchange body (3) which monitors the course of reaction inside the conduit (2).

The invention relates to a flexible tubular solid liquid processor, with filter, heat exchange and thermal extraction functions, wherein the filter element at least comprises one flexible tubular membrane unit, upper flange room and lower flange room; the hydraulic extracting system comprises pressure container, extract pump and tubes; the material liquid of container can be filtered by the tubular filter membrane of membrane unit, and said material liquid can be used as work medium to extract the concentrated material liquid in the filter room of membrane unit and discharge filter slag; the pressure container or the filter room of membrane unit can be filled with medium to exchange heat, to realize thermal filter or extraction; the filter element is arranged on the bearing base inside the pressure container; the filter rotator can rotate the filter element to realize cross-flow filter; and the invention can be arranged with gas or water reverse tube and vacuum filter tube; the slag discharge system comprises slag discharger or tubular inner/outer membrane scraper, or vibration slag discharger, or compression slag discharger.

The invention discloses an improved method for preparing cyclohexanol and cyclohexanone. The invention is characterized in that the decomposition reaction of cyclohexyl peroxide is accomplished with two steps; during the first decomposition reaction, the flow of circulated alkaline is equal to or larger than that of cyclohexane oxydic liquid, thereby ensuring the alkaline water phase to become a continuous phase of the material in the first decomposition reaction; the cyclohexane phase is dispersed; the decomposition reaction is accomplished under an emulsification state, or is called even phase decomposition; the compound from the decomposition reaction is rough separated through a hydrocyclone separator; a large amount of alkaline liquid is separated from the lower outlet of the hydrocyclone separator to be recycled; the material of cyclohexane from the upper outlet of the hydrocyclone separator is changed to the continuous phase, while little alkaline liquid is changed into the dispersing phase; the waste alkaline liquid is separated by lifting a separation groove through gravity; the second decomposition reaction is then accomplished to ensure a full decomposition reaction. With the technical improvement, the total mol yield of the oxidation of cyclohexane prepared cyclohexanol and the cyclohexanone device is increased by 5 percent.

The invention discloses a system for comprehensive laboratory wastewater treatment. The system comprises a pretreatment unit, a neutralizing and equalizing tank, a hydrolysis-acidification tank, an aerobic MBBR tank, a sedimentation tank and a disinfection tank which are sequentially connected, and a spherical suspended biofiller and powdered activated carbon are added into the aerobic MBBR tank,wherein the pretreatment unit comprises four treatment channels which are a high-concentration organic waste liquid channel, a general laboratory wastewater channel, a heavy metal ion wastewater channel and a toilet wastewater channel respectively. The system and a method for comprehensive laboratory wastewater treatment adopt a classification collection, hydrolysis acidification, aerobic MBBR andchlorine dioxide disinfection treatment process. The method can greatly improve the treatment effect of laboratory wastewater and reduce the construction and operation cost of sewage treatment facility, and is a new laboratory wastewater treatment process worthy of promotion.

The invention provides special two-component water-based paint for buses. The special two-component water-based paint comprises a two-component water-based epoxy primer, two-component water-based intermediate paint and two-component water-based finishing paint. While maintaining the original physical and chemical properties without reducing, compared with traditional solvent-based bus paint, the use of organic solvents can be significantly decreased, and VOC is lowered; compared with existing water-based bus paint on the market, the flash drying time can be shortened, the production pace is speeded up, and the more efficient coating efficiency can be obtained.

The invention relates to a preparation method of a high-strength stress-corrosion-resistant aluminum alloy profile. The preparation method comprises the following steps that a remelted refined aluminum ingot, cathode copper, a zinc ingot, a magnesium ingot, an aluminum-silicon intermediate alloy, an aluminum-manganese intermediate alloy, an aluminum-titanium intermediate alloy, an Al-10% Y intermediate alloy, an Al-5% Sc intermediate alloy and an Al-10% Sr intermediate alloy are smelted; then homogenization treatment is carried out, skin turning and saw cutting are carried out after cooling, and then heating treatment, extrusion forming treatment, solid solution quenching treatment, first-time stretching treatment, first-stage aging treatment, second-time stretching treatment, second-stage aging treatment and cooling are carried out to obtain the high-strength stress-corrosion-resistant aluminum alloy profile; and the speed of the second-time stretching treatment is slower than that of the first-time stretching treatment. The aluminum alloy profile treated by the method has the effects of improving the strength, plasticity and stress corrosion resistance, and the obtained aluminum alloy profile is high in surface quality and uniform and fine in structure.

The embodiments provide apparatus and methods of depositing conformal thin film on interconnect structures by providing processes and systems using an atomic layer deposition (ALD). More specifically,each of the ALD systems includes a proximity head (430) that has a small reaction volume right above an active process region of the substrate surface (410). The proximity head small amount of reactants and purging gas to be distributed and pumped away from the small reaction volume between the proximity head and the substrate in relatively short periods, which increases the through-put. In an exemplary embodiment, a proximity head for dispensing reactants and purging gas to deposit a thin film by atomic layer deposition (ALD) is provided. The proximity head is configured to sequentially dispensing a reactant gas (445, 443) and a purging gas (441) to deposit a thin ALD film under the proximity head. The proximity head covers an active process region of a substrate surface. The proximity head also includes at least one vacuum channel (465) to pull excess reactant gas, purging gas, or deposition byproducts from a reaction volume (450) between a surface of the proximity head facing the substrate and the substrate. The proximity includes a plurality of sides, each side being configured to dispense either a reactant gas or a purging gas on the substrate surface underneath the proximityhead. Each side has at least one vacuum channel.

The invention discloses an ultrahigh-strength magnesium alloy preparation method adopting a prestretching composite two-stage ageing technology. The method comprises the steps that a thermal deformation magnesium alloy is subjected to prestretching deformation under a certain temperature, and the deformation is controlled to be within 0.5-20%; and then appropriate two-stage ageing treatment is performed, that is, water quenching cooling is performed after heat preservation is performed for 0.25-20 h under the temperature of 80-130 DEG C, then a sample is heated to 140-250 DEG C and subjected to heat preservation for 5-200 h, and an ultrahigh-strength magnesium alloy can be obtained. By means of the method provided by the invention, good plasticity can still be guaranteed while the yield strength of the magnesium alloy is effectively improved, equipment requirements are simple, and operation is easy; and the magnesium alloy with the excellent comprehensive mechanical performance can beprepared, and the industrial application prospects are wide.

A process for the preparation of Balsalazide and its pharmaceutically acceptable salts wherein the reaction comprises:

• • a. the intermediate N-(4-aminobenzoyl)-β-alanine is converted to N-(4-ammoniumbenzoyl)-β-alanine sulfonate salt using a sulfonic acid in water,
  • b. the N-(4-ammoniumbenzoyl)-β-alanine sulfonate salt is treated with aqueous sodium nitrite solution at low temperature to generate N-(4-diazoniumbenzoyl)-β-alanine sulfonate salt,
  • c. the aqueous solution obtained is quenched with aqueous disodium salicylate to furnish Balsalazide disodium solution,
  • d. the solution is acidified to allow isolation of Balsalazide, and
  • e. optionally converting the Balsalazide to a pharmaceutically acceptable salt (such as disodium salt).

The invention relates to the field of advanced treatment of wastewater and provides a method for disposing cymoxanil pesticide wastewater. The method comprises the following steps that 1, solid sodiumhydroxide is utilized to perform alkali adjustment treatment on the cymoxanil wastewater; 2, after alkali adjustment, powdered activated carbon is added into the wastewater, stainless steel is used as a cathode, and graphite is used as an anode material to form a three-dimensional electrode to carry out an electrolytic catalytic reaction on the wastewater; 3, after the electrolytic catalytic reaction is finished, standing and filtering are carried out, and the acidity of a solution is adjusted by sulfuric acid after filtration; 4, after completion of an enhanced Fenton reaction, iron powder is filtered and recovered first, the pH is adjusted to be 8-9, standing is carried out, a supernatant is taken and placed into a preheating system, and the wastewater is conveyed into an evaporator forevaporation; 5, fractions obtained during evaporation are diluted with effluent of an A/O biochemical system and then subjected to biochemical treatment, and the wastewater after A/O biochemical treatment directly enters a garden pipe network system; 6, a residual liquid after evaporation is centrifuged and dried to obtain a sodium chloride product, a sodium nitrite product and a sodium sulfate product; 7, the remaining residual liquid is burned at the high temperature, and residual heat is recovered.

The invention discloses a low-energy-consumption linear motor special for a hydrogen fuel cell. The linear motor aims at solving the technical problem that the energy consumption is too high due to resistance friction resistance of linear movement between an existing linear motor and a guide rail. The linear motor comprises a bottom supporting seat, a motor shell arranged above the bottom supporting seat, and carrying shells installed at the front end and the rear end of the motor shell. According to the linear motor, water generated by combustion heat release of hydrogen fuel is pumped into the space between the inner sleeve cavity and the linear guide rail through the flow dividing pipe, and the friction force between the linear guide rail and the motor shell is reduced by using the water as a lubricating agent. Meanwhile, the motor shell moves on the bottom supporting seat, the friction force between the motor shell and the bottom supporting seat is reduced through the first rolling wheel and the second rolling wheel, extra electric energy consumption caused by overcoming the friction force between the structures when the linear motor moves along the linear guide rail is avoided, the reaction amount of hydrogen fuel is reduced, and the purposes of energy conservation and environmental protection are achieved.

A clean emission method for a fluidized bed boiler. A first desulphurization is conducted in a dense-phase zone in the fluidized bed boiler; a first denitration based on SNCR is conducted in an outlet of the hearth; the flue gas subjected to the first desulfurization and first denitration in the furnace is subjected to dust removal, heating and secondary denitration based on SCR; and the flue gas subjected to the secondary denitration is sent into a desulfurization system for secondary desulfurization. The invention also provides a corresponding system, which uses an SNCR+SCR combined denitrification mode, and an inside and outside desulfurization mode. Through precise control on parameters of combustion optimization technology and environmental protection system, the NOx and SO2 emission meets the gas turbine emissions standards in key areas of Emission standard of air pollutants for thermal power plants GB13223-2011. The invention has the advantages of high denitration efficiency, high desulfurization efficiency, high system reliability, strong condition compatibility, good controllability of NOx and SO2 emission, long operation cycle and low operating cost.

A novel chemical reaction flask is disclosed and belongs to the field of teaching aids. The novel chemical reaction flask comprises a rectangular column hollow flask body prepared from glass; the flask body is divided into a liquid reagent flask body and a solid reagent flask body by a vertical separation plate with the lower end having a narrow seam; the lower part of the solid reagent flask body is again divided into four solid reagent lattices by a vertical cross-shaped separation plate bestrewed with small holes; each solid reagent lattice is provided with a gangboard bestrewed with small circular holes, and the four gangboards are in step-shaped distribution in the solid reagent flask body according to horizontal height; the liquid reagent flask body and the solid reagent flask body are enclosed at upper ends and are respectively provided with a round flask neck at the center; and the flask neck of the solid reagent flask body is provided with a rubber plug, and a glass tube with a switch is inserted in the rubber plug. The four solid reagent lattices are filled with a solid reagent and are in step-shaped distribution, when the switch is on, a liquid reagent enters the solid reagent flask body through a through hole and contacts with the solid reagent successively, so that the chemical reaction amount is gradually increased, and when the switch is off, the chemical reaction amount is gradually reduced utile a reaction is thoroughly finished, so that chemical reagents are saved.

The invention discloses a catalyst basket and a redox reaction device, and belongs to the technical field of redox reactions. The catalyst basket comprises at least a catalyst basket body, which is arranged in a reactor, wherein each catalyst basket body is provided with a plurality of hole rows, each hole row comprises a plurality of gas inlet holes, and the pore size of the gas inlet hole closeto the inlet of the reactor in each hole row is smaller than the pore size of the gas inlet hole far away from the inlet. With the application of the catalyst basket to carry out a redox reaction, thereaction amount in the catalyst basket close to the inlet of the reactor can be reduced, and the reaction amount far away from the inlet of the reactor is increased, so that the reaction amounts of all parts in the catalyst basket are balanced so as to avoid the problem of inactivation of the catalyst, close to the inlet, in the catalyst basket due to the high local temperature of the inlet of the reactor and ensure the reaction rate in the reactor.

The invention discloses an acrylonitrile-containing fermentation wastewater treatment process and belongs to the field of wastewater treatment. The process comprises the following steps: 1) firstly, carrying out hydrolytic acidification treatment on wastewater; 2) carrying out anaerobic reaction treatment on the wastewater treated in the step 1); 3) sequentially carrying out hydrolytic acidification and anaerobic reaction treatment on the wastewater treated in the step 2); and 4) carrying out aerobiotic biochemical treatment on the wastewater treated in the step 3). In the step 3), a two-phaseanaerobic reactor is adopted for treatment, and a hydrolytic acidification reactor and an anaerobic reactor are serially connected by using the two-phase anaerobic reactor. According to the process,a two-stage hydrolytic acidification-anaerobic treatment method is adopted to treat acrylonitrile-containing fermentation wastewater, influence of acrylonitrile in the wastewater upon treatment of high-concentration complex organic matters is avoided, the treatment efficiency is high, and up-to-standard emission of treated wastewater is met.

A continuous or batch process for the production and recovery of substantially pure carboxylic acids and ammonium salts from a corresponding nitrile. By controlling the amount of water used in the reaction, a biphasic reaction mixture forms which facilitate simultaneous recovery of both fractions. In a preferred embodiment, using propionitrile as the starting material and strong sulfuiric acid, propionic acid of approximately 98% purity is produced in the upper phase. A combination of hydrochloric and sulfuric acid can reduce the total reaction volume.