121results about How to "The reaction is fully and evenly" patented technology

The invention relates to preparation method for high water-soluble nano carbon tube, which comprises acidifying purifying treatment, acylchloridization and grafting. Wherein, based on not destroying its high length-diameter ratio and electron valence band structure, using chemical modification to graft lycine on wall and end of the tube to endow its high water-solubility of 30mg/ml and biocompatibility; reflowing the tube in HNO3 to remove the impurity metal catalyst particle and carboxylate the tube; then, reflowing tube in SOCl2 for completed acylchloridization; finally, acyl chloride group and amido in grafted lycine react to obtain the product.

The invention discloses a movable desorption device of activated coke. An inlet blocking valve, a heating chamber, a reaction chamber, a cooling chamber and an outlet blocking valve are sequentially connected from top to bottom in the reactor main body; the heating chamber is provided with a heating heat exchanger therein which is connected with a thermal source device; a cooling heat exchanger is arranged in the cooling chamber; a preheating chamber is arranged between the inlet blocking valve and heating chamber and provided with a preheating heat exchanger, which forms a heat circulating system with a circulating medium heat exchanger, a circulating pump and the cooling heat exchanger; a first cloth gas guide mechanism is arranged between the preheating chamber and heating chamber; a second cloth gas guide mechanism is arranged between the heating chamber and reaction chamber; and the first and second cloth gas guide mechanisms are respectively connected with a gas recovery suction pump for recycling desorption gas. The invention has higher utility ratio of heat energy by redesigning each part in the reactor, and has more complete air suction, higher desorption efficiency and less corrosion to devices by adding the cloth gas guide mechanisms.

The invention provides a method for preparing a bamboo-based activated carbon and a preparation device thereof. The method comprises the following steps: A, drying, namely crushing bamboo materials at 250-350 DEG G and drying the crushed bamboo materials by drying air; B charring, namely charring the dry bamboo materials under the oxygen deficit condition by using 550-700 DEG C pyrolysis gas as thermal supports; C activating, namely spraying water steam to the charred bamboo materials, activating the bamboo carbon under the oxygen deficit condition at the activating temperature of 900-1000 DEG C, and cooling the activated bamboo carbon to obtain the bamboo-based activated carbon. The reaction is uniform and complete, the water steam in the activating process is completely contacted with the charred material, the generated activated carbon does not easily head and scale in the furnace, and the stability of product quality and the rate of carbon are improved. Moreover, the charring dry-distillation residual heat is completely utilized, the energy consumption is reduced, the charring dry-distillation by-products are recovered, the fume emission is reduced, the pollution to environment is reduced, and the comprehensive utilization rate of the bamboo materials is improved.

The invention provides a preparation method of hercynite, comprising the following steps of: dissolving iron salt and aluminum salt into water or alcohol to prepare a mixed solution in a molar ratio of iron ion to aluminum ion of 1:2; dropwise adding aqueous alkali into the mixed solution to neutralize till the pH value is 7; washing, dispersing and calcining precipitate; adding a binding material and graphite powder to be pressed into a briquette; sintering the briquette at the neutral atmosphere; and cooling to prepare the material. In the method, aluminum hydroxide precipitate and iron hydroxide precipitate, which are evenly mixed with each other, are generated by reaction of aqueous alkali, the aluminum salt and the iron salt react in the solution, and then the precipitate is dispersed by organic alcohol, so that the raw material can be sufficiently dispersed, the reaction is more sufficient and even, and the formed hercynite is more compact in an inner structure; and as the reductive graphite powder is added during sintering, the hercynite can be more preferably generated, so that the reaction time is shortened, and the content is increased.

The invention belongs to the field of high-temperature atmosphere furnaces, and provides a high-temperature atmosphere revolving furnace. The high-temperature atmosphere revolving furnace comprises a furnace body, a crucible and a heating insulation assembly which are positioned in the furnace body and a motor which is used for driving the crucible to rotate, wherein a gas inlet pipe, an exhaust pipe and a vacuum valve are arranged on the furnace body; the furnace body and the crucible are positioned horizontally; one end of the crucible is connected with a power output shaft of the motor positioned outside the furnace body through a connecting shaft; and the heating insulation assembly is mounted around the crucible and supported by a bracket fixed on the furnace body. The invention further provides an application of the high-temperature atmosphere revolving furnace in preparation of AION (Anterior Ischemic Optic Neuropathy) powder. When the high-temperature atmosphere revolving furnace is used for preparing the AION powder, the reaction temperature is decreased; the reaction time is shortened; and the production cost is saved.

The invention provides a lithium ion redox flow battery reactor. The lithium ion redox flow battery reactor comprises a bipolar diaphragm, a positive electrode flow deflector and a negative electrode flow deflector, wherein the flow deflector is formed by multiple flowing channel ridges in a concentric-square-shaped frame; the flow deflector is divided into multiple parallel flow diversion channels by the flowing channel ridges; a liquid inlet and a liquid outlet are formed in the flow deflector frame corresponding to the two ends of each flow diversion channels; and the adjacent positive electrode flow deflectors or the adjacent negative electrode flow deflectors are communicated in series on the same side through communicating structures. According to the lithium ion redox flow battery reactor, each battery reaction cavity is equipped with a group of liquid inlets and liquid outlets, and the electrode suspension liquid communicating structure, so that electrode suspension liquid does not need to pass through a flow division cavity and a flow confluence cavity, instead, the electrode suspension liquid directly enters the electrode reaction cavity, so that the flow division cavity and the flow confluence cavity are eliminated, the consistency among the battery units is effectively improved, the battery performance is improved, and the structure of the reactor is greatly simplified.

The invention discloses a method and equipment for preparing electroplating-grade nickel sulfate from nickel-containing wastewater produced in a surface treatment process, and belongs to the technical field of nickel-containing wastewater treatment process. The method is characterized by comprising the following steps: (1) collecting nickel-containing wastewater; (2) performing sedimentation and press filtration on nickel in the nickel-containing wastewater, and smashing nickel mud to obtain nickel slurry; (3) dissolving the nickel slurry into acid; (4) filtering a nickel sulfate solution; (5) removing impurities from the nickel sulfate solution for purification, and performing secondary filtration; (6) performing vacuum evaporative concentration, crystallization, filtration and centrifugal drying on the nickel sulfate solution to obtain nickel sulfate crystals. The invention aims to provide the method and the equipment which can reduce the waste of nickel resources, reduce potential hazard of nickel to the natural environment and realize recycling of the nickel resources and are used for preparing the electroplating-grade nickel sulfate from the nickel-containing wastewater produced in the surface treatment process. The method and the equipment are used for treating the nickel-containing wastewater.

The invention aims to provide a stoving neutralizing auxiliary reaction tower. The stoving neutralizing auxiliary reaction tower comprises a cylindrical tank body, a stoving neutralizing reactor, a tube diffuser, a juice outlet pipe, a variable frequency juice outlet pump and a liquid level control device. By using the stoving neutralizing auxiliary reaction tower, the defects of the conventional neutralizing reaction device in a sugar refinery are overcome, and the problem of incomplete chemical reaction of the cane juice subjected to stoving liming is solved. The invention also provides a method for carrying out stoving neutralizing reaction by using the stoving neutralizing auxiliary reaction tower. According to the method, the stoving neutralizing auxiliary reaction tower is reasonably utilized, so that the standing time of the cane juice subjected to stoving liming is greatly increased, the uniformity of the cane juice is improved, the reaction of neutralized juice is more complete, and remarkable effects of improving the syrup purity, reducing the color value of white sugar and turbidity and lowering the sulfur dioxide residues are achieved.

The invention discloses a lignin-based biodegradable polymer composite film which is prepared from the following raw materials in parts by weight: 100 parts of a biodegradable polymer material, 5-30 parts of lignin and 0.2-6 part of caprolactone. The invention also provides a preparation method of the lignin-based biodegradable polymer composite film. The preparation method has the advantages thatthe prepared lignin-based biodegradable polymer composite film is high in tensile strength and tear strength, resistant to ultraviolet radiation, flame-retardant, simple in preparation process, low-carbon, environment-friendly, high in production efficiency and easy to industrialize.

The invention discloses an organochlorosilane hydrolysis and hydrochloric acid refining system and a method. The organochlorosilane hydrolysis and hydrochloric acid refining system is characterized bycomprising a hydrolysis tower, a primary phase separator, a secondary phase separator, a first hydrochloric acid purification tower, a decompression tank, a second hydrochloric acid purification tower, a first extraction tower, a second extraction tower, a stripping tower and a line-loop separation tower; a plurality of sections of feeding holes are formed in the side part of the hydrolysis tower; an oil phase outlet at the upper end of the hydrolysis tower is connected with a feeding hole of the primary phase separator; an oil phase outlet of the primary phase separator is connected with a feeding hole of the secondary phase separator; a top gas phase outlet of the hydrolysis tower, a gas phase outlet of the primary phase separator and a gas phase outlet of the secondary phase separatorare respectively connected with a first condenser; a top gas phase outlet of the first condenser is connected with a lower end feeding hole of the first hydrochloric acid purification tower, the upperend of the first hydrochloric acid purification tower is provided with a fresh hydrochloric acid solution inlet, and the bottom of the first hydrochloric acid purification tower is provided with an oil phase outlet. The organochlorosilane hydrolysis and hydrochloric acid refining system has advantages of high reaction conversion rate and high product purity.

The invention discloses a preparation method of a chopped glass fiber silicon dioxide aerogel composite material and the obtained silicon dioxide aerogel composite material. The method comprises the following steps: mixing a silicon source, a solvent I, an acid catalyst, a chemical drying control additive, a basic catalyst, a solvent II and chopped glass fibers, preserving heat to form composite wet gel, putting the prepared composite wet gel into a reaction kettle, adding an aging solution for aging, and then sealing and preserving heat; adding an exchange solvent for at least two times, and keeping the temperature to enable the wet gel to form aerogel; adding a surface modifier and preserving heat for surface modification; adding an exchange solvent and preserving heat; and drying at normal pressure to obtain the silicon dioxide aerogel composite material. In the preparation process, the consumed solvent is less, the preparation speed is high, and the prepared silicon dioxide aerogel composite material is good in heat insulation property, small in density, high in hydrophobicity and high in mechanical strength.

The invention relates to the field of electrochemistry, and especially relates to a high-specific-energy sodium-ion battery manganese-based layered positive electrode material. The general formula of the material is NaxLiyMn1-y-zMzO2, wherein M is Ru, Ni, Cu, Zn, Mg or Ti, x is more than or equal to 0.5 and less than or equal to 1, y is more than 0 and less than or equal to 0.33, and z is more than 0 and less than or equal to 0.33. In the positive electrode material, the Li element occupies the transition metal layer, and the Li-O-Na configuration triggers the non-hybrid energy level of oxygen and triggers the oxidation reduction of oxygen. According to the high-specific-energy sodium-ion battery manganese-based layered positive electrode material, a small amount of other metal M is uniformly doped, and a stronger covalent bond is formed relative to manganese and oxygen, so that the structural stability of lattice oxygen after electrons near oxygen are removed is improved, and the cycling stability of the sodium-ion battery is improved.

The invention discloses an efficient and energy-saving self-weight spiral progressive biomass pyrolysis system which comprises a pyrolysis furnace, a material distribution tank (23), an air cooler anda water cooling system, wherein an outlet of the material distribution tank (23) communicates with the material feeding hole of the pyrolysis furnace; a biomass charcoal outlet in the bottom of the pyrolysis furnace communicates with a material inlet in the upper part of the air cooler; a material outlet in the lower part of the air cooler communicates with the material feeding hole of the watercooling system; an inner cylinder (2) and an outer cylinder (3) are arranged in the middle inside the furnace body (1) of the pyrolysis furnace; a conical material distributor (4) is arranged at the top, corresponding to the material feeding hole of the furnace body (1), of the inner cylinder (2); a pyrolysis gas secondary pyrolysis tube (5) is arranged in the inner cylinder (2); the outlet of thepyrolysis gas secondary pyrolysis tube (5) communicates with a pyrolysis gas outlet (6); both a flue gas outlet (7) and a hot flue gas inlet (8) communicate with an inner cavity of the inner cylinder(2). Mutual actions of heat conduction are achieved, high heat utilization efficiency is achieved, and gradient utilization of energy is achieved.

The invention discloses a corrosion-resistant high-flame-retardant silicon core pipe which is prepared from, by weight, 230-320 parts of n-paraffin hydrocarbon, 195-225 parts of high-density polyethylene, 35-45 parts of dodecene, 135-145 parts of methyl hydrogen silicone oil, 25-30 parts of hydroxy stearic acid, 75-85 parts of polyolefin resin, 10-12 parts of color master batches, 6-8 parts of graphene, 3-5 parts of sodium-based bentonite, 2-4 parts of polyvinyl alcohol, 1-2 parts of zinc naphthenate, 2-4 parts of nano-boride, 3-4 parts of polyurethane, 1-2 parts of polyacrylic acid, 3-5 partsof triethyl phosphate, 2-3 parts of chlorinated paraffin, 1-2 parts of antioxidants, 5-7 parts of glycerol and 7-9 parts of deionized water. By the aid of the formula, the corrosion-resistant high-flame-retardant silicon core pipe has high wear resistance, high flame resistance and high reliability, overall consistency is improved, and the problem of delaminating is avoided. In addition, variousreactants with different functions are added, so that reaction is sufficient, various composition effects of the pipe are maximally achieved, and finally, the pipe is quite high in overall performance.

The invention relates to a wet flue gas desulfurization device and method for enhancing a gas-liquid mass transfer reaction. The device comprises a gas compressor, an inlet end of the gas compressor is connected to a flue gas conveying pipe, an outlet end of the gas compressor is orderly connected to a gas storage tank and a Venturi jet device, an upper inlet of the Venturi jet device is connectedto a discharge port at the lower end of a desulfurizer liquid storage tank, an outlet end of the Venturi jet device is connected to a static spiral cutter, an outlet of the static spiral cutter is connected to a gas/liquid inlet at the middle of a gas-liquid separation tank, a desulfurizer reflux inlet at the lower part of the gas-liquid separation tank is connected to the top of the desulfurizerliquid storage tank so that desulfurizer circulation is realized, a gas outlet at the upper part of the gas-liquid separation tank is connected to an exhaust gas absorption tank through a pipe, and the device also comprises a flue gas analyzer. The device has high efficiency, saves energy, realizes micro-nanoization and high-dispersion mixing of the desulfurizer droplets under a small liquid-gasratio, finishes the ultra-purification treatment for flue gas desulfurization and realizes miniaturization and economy of flue gas desulfurization equipment.