39 results about "Inert gas" patented technology

The invention discloses electronic tobacco juice with baking aroma. A preparation method for the electronic tobacco juice with the baking aroma comprises the following steps of mixing tobacco powder, tobacco shreds or tobacco ash and solvent according to mass-to-volume ratio of 1:5-10; distilling the mixture for 1-4 hours at the temperature of 120-200 DEG C; and feeding inert gas to blow distilled matters in a distilling process until an absorbing liquid is formed so as to obtain the electronic tobacco juice. The tobacco powder, the tobacco shreds or the tobacco ash serve as raw materials; matters with the baking aroma in the tobacco powder, the tobacco shreds or the tobacco ash are extracted and separated from the tobacco powder, the tobacco shreds or the tobacco ash by using a distilling device at certain temperature; the aroma matters of the aroma are quite similar to ingredients of materials of baking aroma generated in the traditional cigarette burning process; after the electronic tobacco juice with the baking aroma is atomized by an atomizer, the feeling of a smoker smoking the electronic tobacco juice is consistent with the feeling of the smoker smoking the traditional cigarettes; and the electronic tobacco juice has the baking aroma generated in the cigarette burning process.

The invention relates to a catalyst for ternary copolymerization of norbornenes, tetrafluoroethylene and pentenes and a ternary copolymerization method. The catalyst is characterized in that the catalyst is prepared through the following method comprising the steps of: dissolving iron dichloride, a ligand and an alkyl metal compound in a solvent in a dry single-neck glass bottle in an inert gas atmosphere, sealing a bottle mouth through an emulsion pipe, keeping the constant temperature in a water bath at the temperature of 40-50 DEG C for 10-30min, and cooling to obtain an iron complex catalyst. Compared with the prior art, the catalyst provided by the invention is a novel iron complex catalyst which can produce catalytic activity in an nitrogen-protected system at a certain pressure and the temperature of 20-120 DEG C so as to catalyze the ternary copolymerization of the norbornenes with the tetrafluoroethylene and the pentenes, and a product after soaking in methanol is very easy to wash and separate. The catalyst has the characteristics of high copolymer yield, low reaction temperature, low price, easiness in obtainment, high catalytic efficiency and the like.

The invention provides a cobalt sulfide material, a preparation method and application of the cobalt sulfide material. The cobalt sulfide material is prepared by the following steps: (1) mixing dimethyl aminodithioformic acid with cobalt chloride hexahydrate according to a mole ratio of 2 to 1 in water for reaction, thus obtaining a first product; (2) under the protection of inert gas, carrying out reaction on the dried first product at 500 to 900 DEG C for 2 to 3 hours, thus obtaining the cobalt sulfide material. The cobalt sulfide material provided by the invention can be applied to the field of hydrogen production from water through electro-catalysis.

The invention provides a loaded metallocene catalyst, which comprises a carrier, and a metallocene compound and alkylaluminoxane loaded on the carrier, wherein the carrier is a compound of silica gel and bar-shaped SBA-15; and the metallocene compound has a structure shown as a formula I. The invention further provides a method for preparing the loaded metallocene catalyst. The method comprises the following step of: under the protection of an inert gas, loading alkylaluminoxane and a metallocene compound on the carrier one by one. In the loaded metallocene catalyst according to the invention, the compound of the industrial silica gel and the bar-shaped SBA-15 is taken as the carrier, so that the cost of the catalyst is lowered remarkably. The loaded metallocene catalyst according to the invention displays high catalytic efficiency when used for catalyzing homopolymerization of olefins and copolymerization of the olefins.

The invention discloses a preparation method for a supported Mo-based oxidation desulfurization catalyst, and belongs to the technical fields of coal processing, petroleum processing and petrochemical processing, and relates to a preparation method for a solid catalyst for oxidative removal of distillate oil and sulphide-containing thiophene aromatic heterocyclic compounds in the chemical materials. The method is characterized by: loading an organic acid on a porous carrier-supported Mo-based oxide catalyst, then drying at a temperature of 70-120 DEG C; heating to the temperature of 100-180 DEG C in the protection of inert gas, and holding for 1-5 hours, wherein the heating rate is 1-10 DEG C per minute; then heating to the temperature of 200-260 DEG C and holding for 1-5 hours, wherein the heating rate is 1-10 DEG C per minute; then heating to the temperature of 300-340 DEG C and holding for 1-5 hours, wherein the heating rate is 1-10 DEG C per minute to prepare the catalyst. The mixture comprising Mo<6+> and low valence state Mo<5+> is loaded on the surface of the catalyst. With the present invention, the oxidation activity and the desulfurization activity of the supported Mo-based catalyst provided by the present invention can be significantly improved, and a wide application prospect in the field of deep desulfurization is provided.

On top of respective areas divided by partition plates, that is, a cassette station, a processing station, and an interface section in a coating and developing processing system, gas supply sections for supplying an inert gas into the respective areas are provided. Exhaust pipes for exhausting atmospheres in the respective areas are provided at the bottom of the respective areas. The atmospheres in the respective areas are maintained in a clean condition by supplying the inert gas not containing impurities such as oxygen and fine particles from the respective gas supply sections into the respective areas and exhausting the atmospheres in the respective areas from the exhaust pipes.

The invention discloses a panel solar thermal collector, which includes a transparent face plate, a heat absorbing plate, a bottom plate, a frame, a liquid inlet pipe and a liquid outlet pipe that are arranged between the heat absorbing plate and the bottom plate, and a heat absorbing pipe communicated with the liquid inlet pipe and the liquid outlet pipe, wherein the bottom plate is a double-layer vacuum metal plate and includes an inner bottom plate, an outer bottom plate and a vacuum cavity formed between the inner and the outer bottom plates, and peripheries of the inner and the outer bottom plates are hermetically welded. By adopting the double-layer vacuum metal plate as the bottom plate, not only the whole thermal collector becomes thinner, but also the heat loss of the thermal collector is ensured to be less, the thermal insulation effect is better, and the utilization rate of the solar energy is higher. By utilizing the thermal insulation layer formed by filling inert gas between the face plate and the bottom plate, not only the thermal insulation cotton is prevented from being spread out of the glass face plate, but also the heat dissipation rate of the thermal collector is reduced. The sealing elements on the peripheries of the face plate and the bottom plate can effectively prevent the hot air from easily leaking out, so as to improve the utilization rate of the solar energy.

A hand-held laser-welding wand includes a gas lens assembly that develops an inert gas atmosphere around a weld pool. The lens assembly additionally reflects laser light and thermal radiation that is reflected off a work piece surface away from the hand of a user of the hand-held laser welding wand.

The invention relates to a preparation method of a ternary terbium complex monomer and a copolymer luminescent material of the ternary terbium complex monomer and MMA. The method comprises the steps that firstly, the ternary terbium complex monomer is prepared, and recrystallization is conducted on an initiating agent AIBN (azodiisobutyronitrile) through methyl alcohol; then the ternary terbium complex monomer is dissolved by utilizing DMF (N,N-dimethylformamide) and DMSO (dimethyl sulfoxide) or a toluene solvent respectively, wherein the molar ratio of the ternary terbium complex monomer to the MMA is 1-10 to 100, and the initiating agent AIBN accounts for 0.5%-1% of the total mass of an initiating system; after reaction is conducted for 20-60 h under the conditions that inert gas argon exists, water and oxygen do not exist, and the temperature ranges from 50 DEG C to 85 DEG C, copolymer powder is obtained through methyl alcohol reprecipitation. The copolymer can be used for electronic terminals such as computers, televisions and mobile phones and mainly serves as the luminescent material of the panel display field. In addition, due to the fact that a pendant group -N-H- of the copolymer contains a reactive hydrogen atom, the copolymer can be used for ion recognition and fluorescent probes.

The invention discloses a defoaming method in the synthesizing process of polyamide resin. The method comprises the following steps: heating and slowly stirring polyamide resin solution in a kettle at first at the temperature of 35 to 100 DEG C at normal pressure for 0.5 to 1.5h, wherein the stirring speed is less than or equal to 50r/min; then, quickly stirring the polyamide resin solution at a stirring speed of 60 to 100r/min at the same temperature for 2 to 4h; and casting film when the defoaming is completed, wherein CO2, nitrogen or other inert gas can be fed during the casting of the film to prevent the resin from discoloring and deteriorating at a gas flow of 0.1 to 0.8 m<3>/min, and a relative pressure of 0.3 to 0.5MPa is kept in the kettle. According to the method, the foaming is thorough, the surface quality of the film obtained later is improved, the defoaming time is short and the defoaming process is convenient in operation.

The invention discloses a preparation process of a leak protection plugging agent along with drilling based on the control of monomer concentration. The preparation process comprises the following steps: (a) purifying AM (acrylamide) and AMPS (2-acrylamido-2-methyl propane sulfonic acid) for later use; (b) weighing AA (acrylic acid), hydrolyzing and transferring into a reactor in a super constant-temperature water bath; (c) adding a certain amount of cross-linking agent; (d) adding AM and AMPS solutions, and regulating the pH value of a reaction system to 7, wherein the monomer concentration is 14.3%-18.2% by weight; (e) introducing inert gas for deoxygenation, stirring and adding an initiator; and (f) regulating the temperature to reaction temperature, and performing polymerization reaction for a certain period of time to get a target product. According to the preparation process disclosed by the invention, the leak protection plugging agent along with drilling can be successfully prepared by controlling the monomer concentration in reaction process, the preparation process further has the advantages of high production efficiency, simple production process, simplicity in operation and capability of greatly reducing the production cost, various performances of the produced leak protection plugging agent along with drilling are far better than those of an existing product, and the leak protection plugging agent along with drilling is further conductive to field well leakage treatment.

A facility comprises an inactive gas supplying device configured to supply inert gas to a container, a transport device configured to carry a container into, and out of, a storage section, a first controller configured to control the transport device, a second controller configured to control the inactive gas supplying device, and a third controller configured to transmit a first command to the first controller through a communications relay device, and to transmit a second command to the second controller Hp. The transport device receives electric power from the first electric power supply whereas the inactive gas supplying device, the second controller, the third controller, and the communications relay device receive electric power from one or more different-path electric power supplies each of which is different from the first electric power supply.

The present invention relates to a method for preparing diphenylethanone from benzyl alcohol through a photocatalytic one-step method. According to the method, diphenylethanone is directly prepared byusing inexpensive benzyl alcohol as a raw material under the action of a solid photocatalyst; and the reaction process comprises: mixing benzyl alcohol, a catalyst and an acetonitrile solvent are mixed, placing in a pressure container, replacing with an inert gas, and carrying out illumination stirring at a room temperature, wherein the reaction time is more than 1 h, the catalyst is easily separated from the reaction system after the reaction and can be recycled multiple times, and the separation yield of diphenylethanone is up to 81%.

The invention provides a preparation method of zeolite-activated carbon composite adsorbent, comprising the following steps: (1) mixing coal gangue powder, asphalt, and white carbon black, drying, and then, in a tube furnace, under the protection of inert gas, Carbonization, and then carbon dioxide gas is introduced to activate to obtain the activated sample; (2) Add the activated sample to the sodium hydroxide solution, react, stand at room temperature for hydrothermal crystallization, then ultrasonically disperse, filter, and filter the residue Washing and drying to obtain the zeolite-activated carbon composite material; (3) Add the obtained zeolite-activated carbon composite material to the glucose solution, stir, filter, dry the obtained filter residue, and then put it into a tube furnace under the protection of an inert gas , carbonized to obtain the zeolite-activated carbon composite adsorbent. The zeolite-activated carbon composite adsorbent prepared by the invention has large BET specific surface area and micropore specific surface area, and has large adsorption capacity for CH4 and N2.

Embodiments of the present invention provide a single crystal pulling device, a preparation method of single crystal silicon, and the single crystal silicon. The single crystal pulling device includesa housing, a melting member and a blocking member; the housing is provided with a receiving space, the receiving space includes at least a first chamber and a second chamber communicating with the first chamber, and the second chamber is located above the first chamber; the melting member is used for heating and melting polysilicon, and the melting member is fixed to the bottom of the first chamber; and the blocking member is located in the second chamber, and the blocking member is used for injecting an inert gas in a preset manner to prevent impurities generated by the polysilicon melting process from entering the upper chamber of the second chamber. With the single crystal pulling device disclosed by the embodiments of the invention, a large amount of impurities can be prevented from flowing into the upper chamber of the single crystal pulling device, thereby reducing the dislocation problem of a single crystal silicon rod caused by impurities, improving the crystal quality, and also facilitating the cleaning work of the receiving space.

A method of decontaminating solids contaminated with chlorinated hydrocarbons includes a first step of heating the contaminated solids at a temperature high enough to volatize chlorine contaminates but below a temperature range favorable to the formation of the dioxins and furans to dechlorinate the contaminated solids. Volatilized chlorine contaminates are removed from the dechlorinated contaminated solids. The dechlorinated contaminated solids are then purged with an inert gas to remove oxygen from the dechlorinated contaminated solids. Thereafter the dechlorinated contaminated solids are heated in the absence of oxygen to a temperature sufficient to crack hydrocarbons contaminating the solids to lower molecular weight hydrocarbons.

The invention discloses a preparation method of a liquid crystal material of an aromatic metal polymer of which the main chain contains ferrocenyl. The preparation method comprises the following steps of 1, mixing 1,1-ferrocenyl diformyl chloride and an aromatic monomer, 2, orderly adding an organic solvent and a catalyst into the mixture in an inert gas protective atmosphere, 3, carrying out a stirring reflux reaction process at a temperature of 0 to 75 DEG C for 4 to 16 hours, 4, after the reaction, carrying out filtration, 5, carrying out reduced pressure distillation of the filtrate, 6, carrying out extraction or dissolution of the concentrate by dichloromethane, 7, washing the extract or the solution by water, or precipitating the extract or the solution by methanol, 8, collecting the organic phase, and carrying out distillation or pumping filtration to obtain precipitates, and 9, carrying out vacuum drying to obtain the aromatic metal polymer of which main chain contains ferrocenyl. The preparation method has simple processes. The product obtained by the preparation method has excellent heat stability and liquid crystal performances.

In a method for heat treating a fuel assembly channel made of zircaloy, the channel is continuously moved relative to a heat-treatment device and, longitudinal sections of it are heated to the beta phase range in an inductive heating zone. The longitudinal section of the channel heated in this manner is than cooled in a cooling zone to a temperature within an alpha phase range. The heat treatment is effected by at least two heating devices, which are spaced apart from one another, operate independently of each other, and each contain at least one induction coil and together form a heating zone. The channel section is first heated using a first heating device and then heat-treated using a second heating device which has less power and in that cooling is effected using a stream of inert gas applied to the outer surface of the channel.

The invention relates to a protection method for a graphite part of a vacuum furnace. The protection method comprises the following steps of 1) polishing and grinding the graphite part to enable the surface roughness of the graphite part to be below 0.5 mm; 2) putting the polished and ground graphite part into a CVD furnace; and 3) setting the temperature and the pressure in the CVD furnace, introducing methane and nitrogen or introducing boron trichloride, ammonia gas and inert gas into the CVD furnace, and finally depositing a pyrolytic graphite coating or a pyrolytic boron nitride coating on the surface of the graphite part. According to the protection method, by coating the surface of the graphite part with the pyrolytic graphite coating or the pyrolytic boron nitride coating, on one hand, graphite dust can be prevented from volatilizing to pollute a reaction chamber, so that the purity of the product is improved; and on the other hand, the graphite part can be protected, the service life of the graphite part is prolonged, and enterprise cost is reduced.

Fire ion detector (ZVD) is made of natural quartz, rare earth, yttrium, iridium, ruthenium, calcium, zirconium, iridium, titanium, nickel, palladium, platinum, manganese, etc. detectors of different specifications. A is the tube wall, A1, A2, G is the electrode coating, A3 is the electronic chamber particle and electronic area; B is the temperature sensor; C is the quartz body; D is the air duct; E is the insulation layer; F is the heating resistance layer ; G electron oscillation area; G1 jet port electron emission area; LI, L2 are heating power supply terminals; M is constant temperature electronic block; H1, H3 are signal output terminals; H2 polarized pole; J is air inlet; Composition, stable work and high precision. It can detect trace amounts of hydrogen and organic gases, etc., and the detection limit can be as low as 0.1ppb. It is suitable for the analysis of environmental protection, gas, chemical, nuclear energy and other industries. The detector does not need combustion gas and combustion-supporting gas, and the carrier gas can be nitrogen or inert gas.

A process for manufacturing a hydrophobized microporous film includes: forming an organic silica insulating film 2 on a substrate 1; supplying a gaseous mixture 3 composed of a silylation gas and an inert gas in an apparatus having the substrate 1 disposed therein at a temperature of the substrate 1, the substrate 1 having the organic silica insulating film 2 formed thereon, and the temperature being equal to or higher than a dew point temperature of the silylation gas and equal to or lower than a vaporizing temperature of the silylation gas; stopping the supply of the gaseous mixture 3 into the apparatus; and heating the substrate having the organic silica insulating film 2 formed thereon, so that a hydrophobizing organic silica insulating film, in which the surface of the organic silica insulating film 2 and the surfaces of the pores are hydrophobized, can be obtained with reduced increase in the specific dielectric constant.