52 results about "Local Reaction" patented technology

High-purity polysilicon granules are prepared by depositing reaction gas on silicon granules in a fluidized bed reactor having:

• • a reactor space comprising at least two zones lying one above the other, the lower zone weakly fluidized by introduction of a silicon-free gas into silicon granules in the lower zone by a plurality of individual dilution gas nozzles, and a second, reaction zone directly abutting the lower zone,

the reaction zone heated via its outwardly bounding wall,

introducing silicon-containing reaction gas as a vertical high speed gas jet into the reaction zone by reaction gas nozzle(s), forming local reaction gas jets surrounded by bubble-forming fluidized bed, gas decomposing leading to particle growth,

wherein the reaction gas has fully or almost fully reacted to chemical equilibrium conversion before reaching the wall or bed surface.

Problems of acceleration of drying of electrolyte membrane and local reaction, etc. can be properly coped with to attain the stabilization of performance of fuel cell.

There are provided a fuel cell 121 which generates electric power from a fuel gas and an oxidizing agent gas, a fuel gas feed pipe 161 and a first switch valve 129 as fuel gas supplying unit which supplies the said fuel gas into the said fuel cell on the anode side thereof, an oxidizing gas supplying pipe 162 and a second cut-off valve 131 as oxidizing agent gas supplying unit which supplies the said oxidizing agent into the said fuel cell on the cathode side thereof, a raw material gas supplying pipe 151 and a third switch valve 143 as raw material gas supplying unit which supplies raw material of the said fuel gas into the fuel cell and a control portion 127 which controls the supply of the said fuel gas, the supply of the said oxidizing agent and the supply of the said raw material and the control portion 127 controls during the starting of electricity generation of the fuel cell 121 such that the said raw material gas supplying unit purges the fuel cell 121 at least on the cathode side thereof with the said raw material gas before the oxidizing agent gas supplying unit and the fuel gas supplying unit supply the fuel gas and the said oxidizing agent gas into the fuel cell 121, respectively.

An analgesic composition, is disclosed which comprises a mixture of piroxicam, dexamethasone, ketamine, lidocaine injection, dimethyl sulfoxide, gabapentin and Vanicream™, preferably in the form of a cream or ointment. The composition is applied topically for the relief of pain of arthritis, neuropathy, post-herpetic (shingles) conditions, sore muscles, tendons and ligaments, and local reactions to insect bites or stings.

The present invention generally relates to pharmaceutical compositions for the treatment of various diseases and disorders, in particular the use of novel complexes of amine drugs with polyacrylic acid carbomer polymers. The compositions of the present invention can be administered transdermally or transmucosally to patients in need thereof for a systemic or for a local therapeutic effect. The compositions of the present invention present the additional benefits of being free or substantially free of excipients which may potentially be responsible for skin local reactions and unpleasant smell.

The invention provides a low-frequency and low-voltage load-reducing control method based on a multi-agent technology, which comprises two processes carried out simultaneously, wherein, in process 1, a local reaction layer triggers a device to act and implement load-shedding control after judging the device meets an action condition according to the measured state quantity information in real time such as local voltage, frequency and the like; and the process 2 comprises the following steps: 1. the local reaction layer uploads the local state quantity information and the actual load-shedding capacity of the device to local coordination layers; 2. the local coordination layers upload a data analysis result to sub-region coordination layers; 3. the sub-region coordination layers calculate local deloading and weighting coefficients for the local coordination layers, and meanwhile upload an information analysis result to a total-network coordination layer; and 4. the total-network coordination layer gathers information uploaded by the sub-region coordination layers, calculates sharply reduced indexes of power-receiving power of a power grid and sub-region deloading and acceleration coefficients for the sub-region coordination layers, sends the indexes and the coefficients to the sub-region coordination layers, and finally sends to the local coordination layers from the sub-region coordination layers.

The invention discloses a preparation method for maleic anhydride grafted modified polyolefin wax. According to the invention, a melt grafting process is employed, and a wax-wrapped peroxide microcapsule is used as an initiator; polyolefin wax and maleic anhydride are fully mixed, then the wax-wrapped peroxide microcapsule is added, so side reaction caused by radical local reaction is avoided, a reaction system is uniform and smooth, reaction conditions are mild, reaction efficiency is high, an acid value of a product is high, and the quality of the product is stable.

The invention relates to the technical field of chemical synthesis, and particularly relates to a synthetic method for phosphate ester. The synthetic method comprises the steps of subjecting phosphorus pentoxide and primary alcohol to an esterification reaction in an organic solvent; and then hydrolyzing and extracting to obtain the phosphate ester. The phosphate ester is prepared by a phosphorus pentoxide solvent method. The reaction is mild, so that the problem of non-uniform reaction system and too vigorous local reaction can be effectively prevented, thereby preventing coking and carbonization phenomena of the phosphate ester. Besides, by controlling reaction conditions, particularly a reaction solvent, a reaction temperature and a reaction time, a proportion of monoester to diester in a product can be controlled; repeatability is good; the content of monoester in the product is 48-52%; and the method is suitable for preparing excellent rust-preventative oil. By controlling a hydrolysis time, a hydrolysis temperature and water use amount and by using diethyl ether as an extracting agent, reaction yield can be obviously increased; and yield can reach as high as 80-90%. Besides, control of a feeding manner of the primary alcohol can also increase the yield and influence the proportion of the monoester to the diester.

The invention provides Ivermectin mixed micelle injection for reducing poisoning incidence and local reaction probability during the killing of livestock parasites and a preparation method thereof. The micelle injection is prepared by taking Ivermectin as active ingredients and adopting a cholate/phosphatide mixed micelle system, so the problem that the Ivermectin is difficult to dissolve in water is solved effectively, the medicine-carrying dose of the micelle injection is improved greatly. The mixed micelle injection prepared by the method has a simple preparation process, and can reduce the probability of toxic and side reactions during the killing of the livestock parasites.

The invention relates to stearate, in particular to a preparation method of stearate. The preparation method comprises the following steps: adding stearic acid into a reaction kettle, and melting to obtain a material A; adding water and a part of metal oxide into a batching tank, stirring, grinding circularly, adding the remaining amount of metal oxide, adding a catalyst, stirring and grinding to obtain a material B; adding the material B into the material A in the reaction kettle in the step a under the auxiliary stirring of a high-speed dispersing machine; after adding the material B, keeping reacting for 10 to 30 minutes, and gradually heating to 120 DEG C or more till water is gradually evaporated fully to obtain molten stearate; cooling and tableting through a tablet machine to obtain flaky stearate, or spraying the molten stearate to obtain powdery stearate. By adopting the method, intense local reaction, uneven reaction and splashing of reaction materials occurring in a direct adding method are avoided; the reaction speed is high, the reaction is easy to control, and the reaction time is saved.

The invention is a technique and method to change and eliminate crystal surface included angle by adding HCl during the course of transversely extending film GaN by HVPE method. It directly adds HCl to the surface of a substrate, by the corrosion by HCl to GaN, etc, makes local V/III ratio change, so as to change the included angle and improve surface feature and quality of the film, where the flux of HCl is 4-10sccm. Compared with other methods, it does not introduce extra impurities, and this is a main technical characteristic. In addition, to introduce HCl into growth region can change local reaction balance and also improve the surface feature and quality of the film GaN.

The invention provides a cooling plate, a fuel cell and a fuel cell system. The cooling plate comprises a plurality of cooling runners, wherein coolant inlets of the at least two cooling runners of the cooling runners are formed in a local reaction high temperature region. Since the cooling runners are arranged, the coolant inlets of the cooling runners can be correspondingly formed in the local reaction high temperature region according to a reaction situation of the fuel cell, specific multipoint cooling is performed on the local reaction high temperature region of the fuel cell, a water content of a proton exchange membrane is ensured, the current density stability and overall electric energy efficiency of the fuel cell are ensured, and the service life of the fuel cell is ensured. At the same time, the cooling plate has the characteristics of simple structure and low manufacturing cost.

The invention discloses a multi-point oxygen injection and subsection mixing device for a supercritical water oxidizing reaction tubular reactor. The tubular reactor comprises a plurality of reaction main tubes provided with main material inlets. Each reaction main tube on the tubular reactor is provided with an oxygen injection inlet. Each oxygen injection inlet is provided with a core tube capable of extending into the corresponding reaction main pipe. Each core tube is provided with a plurality of sets of small holes for oxygen diffusion. The oxygen concentration of each area is effectively reduced, the local reaction degree is lowered, in this way, uniform oxygen injection can be achieved, the material corrosion tendency is reduced, the safety of the tubular reactor is improved, and the service life of the tubular reactor is prolonged.

The invention relates to a preparation method of an alloy material, in particular to a high-temperature self-propagating synthesis method of silicon-manganese nitride alloy. 75 silicon iron powder and ferromanganese iron powder are used as raw materials and are calculated and weighed according to proportion, a chemical stimulation agent is added, a uniformized and evenly-mixed power body is filled into a reaction boat, the reaction boat is put into a high-temperature self-propagating furnace to be subjected to vacuum pumping, high-purity nitrogen is led into the furnace, the pressure is controlled to be 10 MPa, and fire lighting is performed through external thermal excitation to induce local reaction. The silicon-manganese nitride alloy is obtained after reaction. The preparation method is short in technological process, low in production cost, high in reaction speed and capable of saving energy, and no hazardous substance is discharged in the whole technological process.

The present invention relates to medicine, more particularly to pharmaceutical or cosmetic compositions, used for application on the skin, including the region of eyes, as well as on the lips and the mucosa of nasal, oral and laryngeal cavities of the man or the animal, with the purpose of preventing or reducing itch and local reaction from stings of insects, in particular mosquitoes, wasps, horse-flies etc. Local reaction from stings of insects is understood as pain, burning sensation, tissue edema, and hyperemia (redness around the sting site). The pharmaceutical or cosmetic composition, preventing or reducing the itch and the local reaction from the stings of insects, contains soluble salt or mixture of soluble salts of one or several rare earth elements, triethylene glycol, glycerine, polyethylene oxide, ethanol, sodium (potassium) hydroxide and water. When applied on the skin or the mucosa immediately after a sting, the composition leads within several tens of seconds to relief or entire disappearance of the itch, the pain and the burning, prevents edematization and then promotes disappearance of the edema. When the claimed composition is applied preventively, a prophylactic action on preventing or reducing manifestation of the itch and the local reaction from the stings is provided for 1-2 hours after the composition application.

The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.

The invention discloses a preparation method and a preparation device of graphite fluoride. The preparation method comprises the following steps of: (1) mixing a fluoride fused salt and graphite pretreated by hydrofluoric acid, and removing air and water in the reaction system by using an inert gas; and (2) heating and fusing the fluoride fused salt, introducing a mixed gas of fluorine gas and argon gas, and performing a reaction. The preparation method of the graphite fluoride in the invention has the advantages that the temperature of the reaction system is easy to control, and the temperature has a small fluctuation and a uniform distribution; the graphite is suspended in the fluoride fused salt in a liquid state for reaction, and the fluorine gas and the graphite are in uniform contact, thereby avoiding problems of too high temperature and even explosion due to violent local reaction and high heat release caused by nonuniform contact of the fluorine gas and the graphite in traditional graphite preparation processes; and fluoridation efficiency is high and production cost is low. The preparation device provided by the invention has the advantages of convenience to operate and easiness to control, and a reaction still has good resistance to corrosion and is capable of providing a stable and safe reaction environment in the preparation process of graphite fluoride.

The invention discloses a liquid solid reaction process and a device thereof. Liquid materials and solid materials are added into at least one stage of reactor to perform neutralization reaction; the one-stage reactor comprises a solid material inlet and at least one acid inlet; the solid material inlet is formed in the top of the reactor; the at least one acid inlet is formed in the bottom of the reactor; at least one exhaust opening is formed in the top of the reactor; a liquid outlet and a pollution discharging opening are formed in the two sides of the reactor; an overhaul opening is also formed in the reactor. The process and the device have the advantages that the bottom acid inlet and upper part material inlet mode is used; the exhaust openings are positioned in the top of the rector and are in circumferential distribution; gas generated in the reaction can be conveniently exhausted. The acid inlet and the limestone feeding opening respectively use a feeding pipe form, so that the hydrochloric acid and the limestone can sufficiently take a reaction; the condition of incomplete local reaction of the hydrochloric acid and the limestone in conventional equipment can be effectively avoided.

The invention provides a bipolar plate, a fuel battery and a fuel battery system. The bipolar plate comprises a body, wherein multiple cooling runners are arranged on one side face of the body, and coolant inlets of at least two cooling runners in the multiple cooling runners are arranged in a local reaction high-temperature area. As the multiple cooling runners are arranged, the coolant inlets of the multiple cooling runners can be correspondingly arranged in the local reaction high-temperature area, so that the local reaction high-temperature area of the fuel battery is cooled at multiple points in a targeted manner, thereby further guaranteeing the water content of a proton exchange membrane, the electric current density stability and overall electric energy efficiency of the fuel battery and the service life of the fuel battery. Meanwhile, the bipolar plate provided by the invention has the characteristics of simple structure and low manufacturing cost.

The invention relates to a preparation device and method of nanoparticle functional slurry. The preparation device comprises a reactor and a mixing shaft, a supersonic generator is arranged in the reactor, the exterior of the reactor is provided with a metering pump, a material outlet of the metering pump directly faces to the reactor, the preparation device also comprises an ampere-voltage meter, a measurement device of the ampere-voltage meter stretches into the reactor, and the preparation device also comprises a thermostat. Through stirring rotation rate and ultrasonic frequency design, nano-material dispersibility is effectively improved. Control of the nanoparticle functional slurry is effectively improved so that effects of uniformly coating the surfaces of the nanoparticles with the modification substance are obtained. Through a constant-temperature water bath, a violent local reaction is avoided in the slurry. Through observation of the ampere-voltage meter value, photovoltaic conversion effects can be visually identified.