94results about How to "Efficient desorption" patented technology

The invention relates to an effective water-collecting self-cleaning super-amphiphobic coating and a preparation method thereof and belongs to the field of preparation of ultra-infiltration functionalcoating materials. A multilevel micro-nano coarse structure coating layer with a combination of nanometer porous structure and hydrophilic microparticle structure is formed on the surface of the coating. The preparation method comprises the following steps: firstly, adding a chained aqueous silica sol after alkalization into a volatile organic solution, and then performing hydrophobic modification on the surface, thereby acquiring a super-amphiphobic finishing coat; coating micron particles with a hydrophilic polymer, hybridizing the micron particles with the super-amphiphobic finishing coat,coating on a bottom surface and drying, thereby acquiring a super-amphiphobic hybridized coating surface. The coating has an excellent condensation reinforcing dew formation effect, an excellent water drop self-repelling bouncing desorption effect and an efficient water mist collecting effect, has a super-hydrophobic and super-oleophobic super-amphiphobic characteristic, shows excellent self-cleaning and anti-oil properties, is widely applied to the fields of self-cleaning, water mist collection, desalination, condensation heat exchange, and the like, is simple in equipment and process, is easy for operation and is suitable for large-scale preparation and production.

The invention discloses a plunger friction pair of a high-pressure seawater axial plunger pump with a bionic non-smooth surface. The plunger friction pair is mainly characterized in that through hole unit bodies communicated with an inner cavity of a plunger are arranged on the friction surface positioned in a cylinder body in the operation process of the outer surface of a plunger of the friction pair; the other friction surfaces of the plunger are provided with pit unit bodies. Preferably, a bush with the bionic non-smooth surface is added between the plunger and the cylinder body, a groove type trench is arranged on the outer wall of the bush, and the through hole unit bodies are regularly arranged at the bottom part of the trench. The plunger friction pair disclosed by the invention has the advantages that the lubricating capability, the bearing characteristic and the friction and wear properties of the plunger friction pair can be reasonably improved by high cost performance.

The present invention provides organic exhaust gas processing method and system thereof. Exhaust gas containing one or various organic solvent generates from production equipment, and first preprocessing by a exhaust gas preprocessing system (I) then entering a adsorption/desorption system (II) for adsorption and desorption, and the desorbed organic solvent entering a recovery system (III) for recycling, part of the desorbed organic solvent being used for production and the others entering a hypoxia hot air generation system (IV) for catalytic combustion to get hypoxia hot air, and using the obtained hypoxia hot air for desorption. Using the recycled organic solvent from the recovery system (III) as fuel to generate hypoxia hot air that making industries incapable of steam or inert gas supply being able to recovery organic solvent exhaust gas without secondary pollution, simultaneity resolving problem of system internal pollution caused by using variety fuels and equipment corrosion caused by steam.

A detection device includes a sensor chip, a suction section adapted to suck a fluid sample to the sensor chip, a light source adapted to irradiate the sensor chip, a light intensity adjustment section adapted to adjust intensity of the light, a light detection section adapted to detect the light reflecting the sample adsorbed to the sensor chip, and a control section adapted to perform drive control on the suction section. The control section sets the suction flow velocity to V1 in the first mode in which the light detection section performs the detection, and sets the suction flow velocity to V2 (V2>V1) in the second mode. The light intensity adjustment section sets the light intensity to L1 in the first mode, and sets the light intensity to L2 (L2>L1) in the second mode. The first and second modes are switched based on the signal from the light detection section.

The invention discloses a regenerative device and method for desulfurized and denitrified active coke. The regenerative device comprises a regenerative reactor, wherein the regenerative reactor is composed by the connection of an inlet blocking valve, a feeding bin, a heating bin, a regenerative bin, a precooling bin, a cooling bin, a discharging bin, and an outlet blocking valve in sequence; a heating heat exchanger component is arranged in the heating bin; a precooling heat exchanger component is arranged in the precooling bin; a cooling heat exchanger component is arranged in the cooling bin; a nitrogen carrying bin for inletting ammonia nitrogen gas to improve the desulfurization and denitrification performances of regenerated active coke during regeneration process is arranged between the precooling bin and the cooling bin. The regenerative method adopts the regenerative device to conduct the regeneration of the active coke. According to the invention, more reasonable utilization of energy can be realized in the regeneration process to allow the desulfurization and denitrification performance of the regenerated active coke to obtain further improvement; on-line modification can be conducted on the active coke through the nitrogen carrying bin to keep high desulfurization and denitrification performance of the active coke.

The invention relates to an efficient dechlorinating agent for waste incineration fly ash. The dechlorinating agent is prepared from one or more of nitrate, phosphate, organic acid and phosphoric acid. The invention also relates to a dechlorination method and a dechlorination device. According to the method, the principle of electrochemical ion migration is utilized, the efficient dechlorinating agent beneficial to enhancing the migration efficiency of chloride ions in the waste fly ash is added in the process of washing the waste incineration fly ash, and an electric field device specially designed on site is added, so that the liquid/solid ratio is lower, the water consumption for washing is less, and the desorption and migration efficiency of the chloride ions in the fly ash is higher in the process of washing the chloride ions in the waste fly ash, thus achieving the effect of efficiently removing chlorine salt from incineration fly ash.

The invention discloses an absorption treatment method and system for VOC organic exhaust gas. The method comprises the following steps that a part of organic matters are separated from the VOC organic exhaust gas by using a condensation unit, then the VOC organic exhaust gas is allowed to fully contact with an absorbent in an absorbing device, organic matters in the exhaust gas are absorbed and purified by the absorbent, then the exhaust gas is discharged, and the absorbent is converted into an absorbent rich solution; and the absorbent rich solution may undergo vacuum extracting or heating in a desorption device or carry out counter-current contact with purge gas in the desorption device to allow organic matters in the absorbent rich solution to be desorbed so as to obtain a regeneratedabsorbent lean solution, the regenerated absorbent lean solution is conveyed to the absorbing device for recycling, and desorption gas with enriched organic matters is subjected to condensation or burning or oxidation treatment. With the treatment method provided by the invention, organic components with high value in the VOC organic exhaust gas can be recovered and efficiently removed; and sincethe absorbent is cyclically used, operation cost and environmental pollution are reduced.

Disclosed herein is a method for preparation of a mesoporous polymer nano-composite material, more particularly, a method for preparation of a meso-porous polymer nano-polymerized composite material which includes: drying a solid material having pores under vacuum at ambient temperature and pressure; adding a first organic solvent to the vacuum dried solid material in the reactor and dispersing the first organic solvent in pores of the solid material by an ultrasonicator to remove air while wetting a surface of the solid material with acetonitrile; adding a constant amount of a material having radicals or functional groups relative to weight of the mixture containing the solid material and the first organic solvent in a reactor, which was prepared in the above step, and agitating the mixture; introducing a polymerization initiator into the reactor containing the mixture prepared in the above step, in order to initiate polymerization of the mixture in the reactor; using a second organic solvent to filter and wash the reaction product after completion of the polymerization, in order to remove the unreacted material having radicals or functional groups as well as the polymerization initiator from the product; and drying the treated product to eliminate the second organic solvent from the same after removal of the unreacted material having radicals or functional groups as well as the polymerization initiator from the product.

A sorbent that is particularly effective for the efficient adsorption and subsequent desorption of ammonia is produced from a high-purity carbon material which is exposed to an oxidizing environment so as to produce an effective amount of at least one oxygen species on its exposed surfaces. The high purity carbon material may be produced by carbonizing a polymer material, and the sorbent may comprise a support having an open-cell, three dimensional, lattice-like structure.

A processing method of an exhaust gas which comprises a step (A) adding a halogen-based gas-absorbing liquid to an adsorbent and a step (B) bringing the exhaust gas containing a halogen-based gas discharged from semiconductor manufacturing facilities into contact with the adsorbent, to remove the halide-based gas from the exhaust gas. A processing apparatus of an exhaust gas, which comprises an inlet for the exhaust gas containing a halogen-based gas discharged from semiconductor manufacturing facilities, a filling part of an adsorbent, means for adding a halogen-based gas-absorbing liquid to the filling part and an outlet of the processed gas. A processing method and a processing apparatus both for an exhaust gas containing the halogen-based gas discharged from semiconductor manufacturing facilities without requiring to frequently replace a cleaning agent with a new one, without jeopardy of causing fire even when processing a dry exhaust gas containing a highly reactive gas, and capable of easily reducing a concentration of the halogen-based gas among the gas after being processed is provided.

The invention provides a one-machine flotation method and a device. The device comprises a flotation cavity; a tailings shunting device is arranged on the inner wall surface of the flotation cavity, and comprises more than one spiral channel; an ultrasonic generation device is arranged on the outer wall surface of the flotation cavity; a spiral rotor floating device is arranged at the bottom of the flotation cavity; ore pulp enters into the flotation cavity, and then accomplishes the bubble formation process and the mineralization processes through the spiral rotor floating device synchronously to produce floated ore pulp; floated ore pulp upwards unidirectionally flows in the flotation cavity in a spiral flow state under the guidance of the spiral flow inertia force provided by a spiral rotor to form mineralized bubbles to be discharged from a mineralized bubble outlet; and finally, the flotation process is finished. In the invention, the tailings shunting device is adopted to achieve the continuous scavenging process to outflowing tailings; an ultrasonic dispersion device, the spiral rotor floating device, the tailings shunting device and a liquid medicine cleaning device jointly form a one-machine flotation flow, so that the bubble formation and mineralization effects are fully improved, and the separation of the mineralized bubble from the tailings particles is fully improved with a high efficiency.

The present invention aims at executing an air-fuel ratio feedback control making use of a wide range air-fuel ratio sensor, such that the purifying performance of an exhaust gas purification catalytic converter is exhibited to the utmost. To this end, fuel is injected from a fuel injection valve by establishing a fuel injection quantity, in consideration of a perturbation control constant for oscillating the air-fuel ratio at a predetermined period with a predetermined amplitude. Thus, even when the air-fuel ratio feedback control is executed making use of the detected result of the wide range air-fuel ratio sensor, it becomes possible to conduct a so-called perturbation control in which the air-fuel ratio of exhaust gas at the inlet portion of the exhaust gas purification catalytic converter is oscillated at a predetermined period with a predetermined amplitude. As a result, there can be effectively caused the adsorption and desorption of oxygen molecules onto and from the surface of the exhaust gas purification catalytic converter, so that the purifying performance of the catalytic converter can be remarkably improved.

The invention discloses a soil restoration agent and a method for restoring organic contaminated soil or mercury contaminated soil. The soil restoration agent comprises a ferrous chloride solution with the pH being 4-5 and the mass concentration being 3-5%. The method for restoring organic contaminated soil or mercury contaminated soil comprises the following steps that to-be-restored organic contaminated soil or mercury contaminated soil is taken; the soil restoration agent is prepared; the soil restoration agent is added into the to-be-restored organic contaminated soil or mercury contaminated soil, mixing and stirring are conducted, and a mixture is obtained; and the mixture is arranged in a microwave reactor for reaction, and restored soil is obtained. The soil restoration agent and the restoration method which are provided by the invention and used for restoring organic contaminated soil or mercury contaminated soil efficiently restore soil and are high in desorption efficiency.

The invention relates to a method for extracting lithium from an alumina production process and preparing battery-grade lithium carbonate. The method comprises the following steps of: cooling a refined solution, and carrying out a reaction with an acidic compound to prepare an aluminum hydroxide active seed crystal; then, mixing the active seed crystal with a sodium aluminate solution to enrich lithium in the sodium aluminate solution to obtain lithium-rich aluminum hydroxide; mixing the lithium-rich aluminum hydroxide and an organic acid to carry out a microwave desorption reaction, and carrying out solid-liquid separation after the reaction is completed, wherein the solid is lithium-free aluminum hydroxide and the liquid is lithium-rich desorption liquid; adding alkali liquor to the lithium-rich desorption solution to adjust the pH value, and adding a lithium purification inhibition agent to remove aluminum ions, iron ions, calcium ions and magnesium ions to obtain a lithium-rich refined solution; and adding a saturated sodium carbonate solution to the lithium-rich refined solution to precipitate lithium to obtain crude lithium carbonate, and repeatedly the washing crude lithiumcarbonate with high-purity water to obtain the battery-grade lithium carbonate. The method realizes high-efficiency high-quality extraction of lithium in the alumina production process, and is in seamless connection with the existing alumina production process. The method has a simple process and low production cost and is suitable for industrial promotion.

The invention relates to a dust-proof structure of a tool station, which is applied to the tool station and is used for blocking floating dust in the process of machining operation. The dust-proof structure comprises a dust-proof cover which is arranged on a station of a machine tool and is provided with an upper gas inlet structure and a lower gas pumping structure. In the invention, the dust generated by cutting is collected in a cutting work area; and by utilizing the process of pumping gas at one end and introducing gas at the other end, a dust absorbing device can very effectively absorb the dust from the cutting work area, thereby preventing the dust from spreading outwards.

The invention discloses an electric knocking cracking and microwave collaborated heat driving gas extraction system and a method. The system comprises an ultra-high pressure water jet generating system, an electric knocking cracking system, a microwave heat injection system and a gas extraction system. In work, a drilling machine clamps the tail end of an insulating sleeve, and the front end of the insulating sleeve stretches into a gas extraction hole. The input end of a rotating sealing device of the drilling machine is connected with an ultra-high pressure water pump through a nanometer fluid pipeline, and the output end is connected with the tail end of the insulating sleeve. The using method of the system comprises the steps of construction of the gas extraction hole, injecting of nanometer fluid suspension liquid, discharging, heating and the like. According to the system, electric cracking is combined with microwave heat injection, the coal layer cracking and heat driving gas collaborated effect is achieved, the gas desorption efficiency is remarkably improved, the purpose of preventing and treating gas disasters is achieved, and efficient and safe mining of coal resources is achieved.

The invention discloses a process for recovering precious metal from sulphide ore based on a thiosulfate leaching method. The process comprises the following steps: ore containing the precious metal is selected and placed in a thiosulfate solution to be ground, and ore pulp after ore grinding is leached; leaching liquid is obtained, and the sulphide ore is placed into the leaching liquid to adsorbthiosulfuric acid complexes of the precious metal; a solution after adsorption is filtered and dewatered, and the sulphide ore loaded with the precious metal thiosulfuric acid complexes is obtained;the precious metal thiosulfuric acid complexes are desorbed from the sulphide ore, and precious liquid containing precious metal complex ions is obtained; and the obtained precious liquid is electrolyzed, and a precious metal simple substance is obtained. Through the sulphide ore, the adsorption quantity on Au/Ag can reach the situation that an adsorbent adsorbs tens of milligrams of Au/Ag per gram, and the adsorption quantity is much larger than that of an existing adsorbent; meanwhile, Au/Ag is desorbed from the adsorbent through a NaOH solution or a Na2S solution; and the method is easy tooperate, the adsorbent is simple and easy to obtain, the adsorption effect on Au/Ag is good, and meanwhile Au/Ag is efficiently desorbed.

The invention discloses a flat sheet membrane for chiral separation of amino acid, and a preparation method thereof, and relates to the field of intelligent high polymer materials. The preparation method comprises the following steps: firstly, taking L-phenylalanine (L-Phe) as the separation target, synthesizing a chiral amino acid monomer through modification, and further copolymerizing with a thermosensitive monomer N-isopropyl acrylamide (NIPAAm) so as to synthesize chiral copolymer microgel P (NIPAAm-co-AAc-L-PheEt); secondly, carrying out graft copolymerization on the NIPAAm monomer and polyvinylidene fluoride (PVDF) by using a free radical polymerization method so as to synthesize a thermosensitive membrane making substrate PVDF-g-PNIPAAm; and finally alloying the thermosensitive chiral copolymer microgel with a thermosensitive membrane making substrate solution, so as to prepare the flat sheet membrane for chiral separation of amino acid. The flat sheet membrane has the chiral recognition and separation function and can realize the efficient separation of L-Phe by controlling the ambient temperature change. The membrane provided by the invention is simple in preparation method, needs no special equipment, is low in production cost and is applicable to industrial application; and the selective overload quantity of the prepared flat sheet membrane can be up to 15-25%, and the separation coefficient (alpha) can be up to1.5-1.8.

The invention discloses a high-polymer adsorbing material for separating and purifying a vitamin B12 from fermentation liquid, and relates to the technical field of biological medicine extraction. A preparing method of the high-polymer adsorbing material includes the following steps of (1) macroporous adsorption resin preparing; (2) macroporous adsorption resin pretreating; (3) macroporous adsorption resin modifying. The vitamin-B12 adsorbing capacity of the macroporous adsorption resin prepared with the method is 18.5 mg/g or above, efficient desorbing of the vitamin B12 can be achieved after washing is carried out through a 65% methanol solution, the desorption rate is 98.5% or above, the purity of the prepared vitamin B12 is 58% or above, and the macroporous adsorption resin is suitable for separating and purifying the vitamin B12 from the fermentation liquid accordingly.

The invention discloses a dustproof structure of a machine tool, which comprises a dustproof box, an absorption pipeline and a chip-proof plate (20), wherein the dustproof box is arranged at a cuttingwork area of the machine tool and provided with an upper open box opening; the absorption pipeline is arranged on the side wall of the dustproof box and used for connecting an absorption device; andthe chip-proof plate is arranged above the dustproof box and used for shielding the upper open box opening, a small gap is reserved between the chip-proof plate and the top edge of the box wall of thedustproof box, and the chip-proof plate is provided with a main shaft hole through which a main shaft of the machine tool passes through freely. The dustproof structure of the machine tool can effectively remove dust produced during machining.

There are disclosed an electrode having a large amount of a dye to be supported, having an excellent dye replacement property and having a capability of improving a photoelectric conversion efficiency, a manufacturing method of the electrode and a dye-sensitized solar cell including the electrode. An electrode 11 according to the present invention includes a dye-supported layer 14 laminated on a substrate 12 and including zinc oxide and a dye. The dye-supported layer 14 has at least a plurality of bump-like protrusions formed so that zinc oxide protrudes radially from the substrate 12, or satisfies represented by the following formula (1): 2≦I₀₀₂/I₁₀₁≦12, in which I₀₀₂ is a peak intensity attributed to a zinc oxide (002) face in X-ray diffraction measurement of the dye-supported layer 14, and I₁₀₁ is a peak intensity attributed to a zinc oxide (101) face in the X-ray diffraction measurement.