43results about How to "Environmentally friendly" patented technology

The invention relates to a preparation method of a hierarchical pore AFI structured aluminum phosphate molecular sieve. A macropore-mesopore-micropore composite hierarchical pore aluminum phosphate AFI molecular sieve carrier is prepared through adopting an ionothermal synthesis technology. The molecular sieve synthesis process is carried out under normal pressure or a low self-generated pressure, crystallization conditions are mild, and an ionic liquid can be recovered and repeatedly used, so the method has the advantages of low synthesis cost, no discharge of acids, alkalis or waste liquids in the synthesis process, and environmental protection. The hierarchical pore AFI structured aluminum phosphate molecular sieve prepared in the invention, including macropores, mesopores and micropores, has potential application values in the fields of catalysis, adsorption and separation.

The invention relates to an energy storage system, in particular to a solar thermal dynamic energy storage system, belonging to the technical field of energy storage. The solar thermal dynamic energy storage system comprises a solar collecting system, a compressed energy storage system and a thermal power expansion system, wherein a photovoltaic power generation device can generate electricity to drive a high-pressure compressor to work, external electric energy can drive the high-pressure compressor and a low-pressure compressor to work through a power grid of a power station, and an expansion machine can swell to generate electricity to release energy. According to the energy storage system, the valley electric energy of the power grid of the power station and residual electric quantity generated through daytime solar photovoltaic power generation can be stored, the solar photovoltaic power generation and sunshine thermal power stored heat power generation can be fully utilized, thereby improving the utilization efficiency of energy, lowering the power generation cost and increasing the economic benefit.

The invention provides a vitamin E nanoemulsion, a nano cream and a preparation method thereof. The vitamin E nanoemulsion is composed of vitamin E, oil phase, main surfactant, cosurfactant and water.The average grain diameter of the vitamin E nanoemulsion is 30-60 nm, and the vitamin E nanoemulsion is an O/W type emulsion and is a uniform system which is transparent or semi-transparent, low in viscosity and good in mobility and has blue opalescence. The method for preparing the vitamin E nanoemulsion includes the steps of mixing an oil phase and vitamin E and performing stirring evenly; sequentially adding the main surfactant and the cosurfactant, and performing stirring evenly; slowly adding distilled water dropwise, performing stirring while adding water, and obtaining the vitamin E nanoemulsion. The vitamin E nano cream is made of the vitamin E nanoemulsion and the O/W type cream substrate, and the manufactured nano cream is white, fine, glossy and good in viscosity. Instruments required for the preparation method and operation steps are simple, and the prepared nano cream is good in stability and high in infiltration capacity and has good application prospect in the directionof cosmetics.

The invention discloses a composite collecting agent which comprises an organic carboxylic acid organic matter and a xanthate medicament in a mass ratio of (6-8): (2-4). The invention also discloses application of the composite collecting agent in chalcopyrite flotation, which comprises the following steps: crushing and grinding chalcopyrite, adding the composite collecting agent and an inhibitorinto ore pulp under the conditions of proper ore pulp concentration, fineness and pH, stirring, adding a foaming agent, and carrying out flotation. When the composite collecting agent is applied to mineral separation of chalcopyrite and gangue, oxygen in phosphonic acid (phosphonyl) and carboxylic acid (carboxylate) functional groups in organic carboxylic acid organic matters of a main agent can be selectively combined with copper and iron sites on the surface of the chalcopyrite, so that selective separation of the chalcopyrite and the gangue is realized; and the strong collecting property ofthe auxiliary agent xanthate can strengthen recovery of the chalcopyrite and improve foam merging, the synergistic effect of the two agents greatly improves the grade and the recovery rate of copperconcentrate, and the effect is superior to that of a traditional xanthate collecting agent.

The invention discloses a catalytic oxidation pressure acid leaching decomposition method of nickel-molybdenum ore. The method is characterized in that the iron ion is used as a catalyst, the air or hydrogen is used as an oxidant, an acid solution is used as a leaching agent, and the nickel and molybdenum in the nickel-molybdenum ore can be extracted at the same time through pressure leaching; and sulfur can be recycled from the leaching residue through evaporation or solvent dissolution. The generation of SO2 or SO4<2-> is effectively avoided, the consumption of the oxidant is remarkably reduced, and the cost of the oxidant is only 1/6 of that of the oxidant consumed in the prior art; and moreover, the resource utilization of the sulfur element is successfully realized. In the ore decomposition process, the nickel and molybdenum are leached out at the same time, the nickel leaching rate exceeds 97.2%, and the molybdenum leaching rate exceeds 98.7%; and the method disclosed by the invention has the advantages of high leaching rate, short process, simple operation, low production cost, environmental friendliness and the like.

The invention discloses a detachable floor and mounting process thereof. The detachable floor comprises a plurality of surface plates, buffer pads, support bodies, a plurality of magnetic components and a plurality of foot stand components, wherein each magnetic component comprises an upper magnetic part and a lower magnetic part, the upper magnetic part is adhered to one surface plate, the lower magnetic part is connected with one support body in a threaded manner, and the upper magnetic part is connected with the lower magnetic part in an embedded manner; each foot stand component comprises a base, a stud, a fastener and a gasket, one support body is connected with the stud in a threaded manner, the gasket is connected with the stud in a fastened manner, the gasket meshes with the support body, and the fastener is used for downwardly locking the gasket. The detachable floor is easy to mount and recycle and good in seismic performance and deformation resistance. The mounting process of the detachable floor uses a dry method, does not produce mortar pollutants and volatile harmful gases, and is low in construction noise, environmentally friendly and low in production, mounting and maintenance cost.

The invention provides a novel synthetic process of high-purity florfenicol. The process comprises the following steps: by taking a compound D-threo form-2-(dichloromethyl)-4,5-dihydro-5-[p-(methylsulfonyl)phenyl]-4-oxazole methanol as an initial raw material, carrying out fluoro-substitution by using an Ishikawa reagent; crystallizing and purifying to obtain a high-purity fluoro product (4S,5S)-2-(dichloracetyl)-4-(methyl fluoride)-5-[4-(methylsulfonyl)phenyl]-4, 5-dihydrooxazole; and further carrying out a hydrolysis reaction directly on the high-purity fluoro product without being added into an organic solvent to directly obtain a high purity florfenicol product. According to the production process, the fluoro intermediate product is crystallized and purified to obtain a high purity product by adopting a direct hydrolysis process without using the organic solvent, so that the novel synthetic method is simple in process operation, environmental friendly, high in product purity, few in impurity, free from solvent residue and low in cost.

The invention belongs to the field of corrosion prevention of metal in saline solutions, and particularly relates to a preparation method and application of a stable super-hydrophobic conductive polysiloxane-polyaniline (PANIC-RA-POS) anticorrosive coating. According to the method, a compact and stable conductive polyaniline film is constructed on a metal surface through an electrochemical method, an external hydrophobic polysiloxane coating is constructed through a spraying method, meanwhile, an adhesive sticker (RA) is sprayed between polyaniline and polysiloxane to form a polysiloxane-polyaniline (PANIC-RA-POS) anti-corrosion coating, which is applied to the field of metal surface corrosion prevention. The coating is divided into an internal conductive polyaniline film PANIC and an external super-hydrophobic coating POS, the PANIC has the unique advantages of spontaneously passivating the metal surface and slowing down pitting corrosion, electrochemical corrosion is effectively reduced, the POS has the characteristic of spontaneously forming an air layer in a corrosive medium, transmission of a corrosive medium and electrons can be efficiently blocked, chemical corrosion is effectively reduced, the adhesive sticker glue spray SA enhances the binding force between the PANIC and the POS, and the metal corrosion resistance is effectively improved.

The invention discloses a medical suture material and a preparation method. The medical suture material comprises components in parts by weight as follows: 110-140 parts of magnesium, 1-2 parts of zinc, 0.1-0.4 parts of aluminum, 3-5 parts of molybdenum, 2-2.5 parts of calcium, 0.1 parts of carbon, 4-6 parts of niobium, 0.5-1 part of iron, 1-2 parts of manganese, 0.5-1 part of germanium, 1-2 parts of zirconium and 0.05-0.1 parts of titanium. The medical suture material has very high strength and elongation at break, is easily degradable and has good corrosion resistance and biocompatibility.

The invention discloses a modified microcrystalline cellulose enhanced soybean oil-based resin composite material and a preparation method thereof. A modifying agent and a catalyst are firstly used for modifying the microcrystalline cellulose, and the acquired modified microcrystalline cellulose is uniformly mixed with the soybean oil resin, an initiator and a solvent to be injected into a mold tocure and form, thereby manufacturing the environmentally friendly modified microcrystalline cellulose enhanced soybean oil-based resin composite material with high performance; the obtained compositematerial has excellent bending strength, bending modulus and water resistance.

The invention provides a preparation method of a bacterial modified carbon electrode. By adoption of the method of the bacterial modified carbon electrode, the over-potential of the electrode is greatly reduced, and the energy efficiency of the electrode is improved. The rich phosphorus, oxygen, nitrogen, sulfur and other iso-carbon elements provide reaction sites for reaction species. The structure of the carbon material of bacteria on the surface of the electrode provides a large amount of effective reaction area for reaction species, so that the reaction activity of the electrode is greatlyimproved, and the electrode has excellent voltage efficiency and energy efficiency.

The invention discloses a preparation method of a three-dimensional ordered macroporous composite material for electro-catalysis of a methanol fuel cell. The preparation method comprises the followingsteps: preparation of a three-dimensional ordered template, preparation of a carbon precursor, preparation of a nickel/cobalt/copper precursor and preparation of the three-dimensional ordered macroporous composite material. The three-dimensional ordered macroporous composite material is prepared by assembling polymer microspheres into a three-dimensional ordered template, mixing a carbon precursor and a nickel/cobalt/copper precursor, dipping, curing and sintering. The three-dimensional ordered macroporous composite material obtained by the simple and efficient method not only has the advantages of large specific surface area, high porosity and the like, but also has a series of advantages of strong pore structure arrangement periodicity, narrow pore size distribution, adjustable pore size, three-dimensional ordered overall structure and the like, and the preparation method is simple, low in cost and environment-friendly.

The invention relates to a preparation method of a polyimide porous membrane containing an amidoxime group, and belongs to the field of special high polymer materials. The porous membrane can be used as a high-strength adsorption material in the fields of uranium adsorption, enrichment, separation and the like. The preparation method of the polyimide porous membrane containing the amidoxime group comprises the following steps: when polyimide is prepared, a diamine monomer containing a cyano group is introduced into a monomer and is copolymerized with other diamine monomers, and after the polyimide is prepared, the polyimide porous membrane is prepared by a phase inversion method; and a cyano group on a side chain of the polyimide is hydrolyzed into an amidoxime group to obtain the polyimide porous membrane containing the amidoxime group. The uranium adsorption capacity of the prepared porous membrane reaches 110 mg/g or above. The method for preparing the polymer porous membrane for adsorbing uranium is simple, practical and environment-friendly, the selected solvent and non-solvent are low in cost and easy to recycle, and the comprehensive yield is higher than 90%.

The invention discloses a rapid inhalation type intratracheal instillation medication system. The medication system comprises an anesthesia device, a fixing device and a medication device, wherein the anesthesia device is used for performing anesthesia on a medicated object; the fixing device is used for fixing the medicated object after anesthesia; the medication device is used for instilling a medicament into a trachea of the medicated object. The rapid inhalation type intratracheal instillation medication system can be widely applied to pulmonary administration or toxicant exposure experiments and establishment of various disease models.

The invention relates to a double-solid slow-release air purifying agent. The air purifying agent comprises gel and an auxiliary material bag which acts with the gel and enables the gel to release chlorine dioxide, and the gel comprises the following raw materials in parts by weight: 1 part of sodium carbonate, 10-12 parts of sodium chlorite, 1 part of sulfate, 72 parts of water and 8-10 parts of water-absorbent resin; and the auxiliary material bag comprises the following raw materials in parts by weight: 2 parts of calcium chloride, 2 parts of calcium oxide, 2 parts of sodium dihydrogen phosphate and 2 parts of sodium bicarbonate. When the purifying agent is used, the auxiliary material bag is unsealed, then contents in the auxiliary material bag are poured out to cover the gel, the two materials react to release chlorine dioxide, and the release process is limited by the barrier effect of the gel formed by the water-absorbent resin, so that the chlorine dioxide can be slowly released from the gel; and the calcium chloride and the calcium oxide release heat after absorbing water, so that the sodium chlorite decomposition reaction is accelerated. Compared with the prior art, the air purifying agent can slowly release chlorine dioxide gas, reaction starting is fast, and the effective service life is long.

The invention provides a pair of interventional anti-radiation latex gloves. The gloves are latex gloves and are prepared from, by weight, natural rubber latex 28-30%, sulfur 0.1-0.5%, zinc oxide 1-3%, an accelerant 0.1-0.5%, an antioxidant 0.3-0.5% and 50-500 nm tungsten and bismuth particles 65.5-70.5%. Compared with the prior art, a rubber material of the pair of interventional anti-radiation latex gloves is moderate in consistence and good in liquidity, air bubbles can automatically float out rightly, the filling material proportion is high, and latex does not produce layering and gelling within a usage period. The pair of interventional anti-radiation latex gloves has a better attenuation effect on X-ray radiation and is environmentally friendly.

The invention relates to grease for low speed and heavy duty. The grease contains 8-20% of thickening agents, 1-4% of graphite powder, 0.3-6% of other extreme pressure additives, 0.3-6% of organic ester and the balance base oil by weight, wherein other extreme pressure additives are one or more of zinc dialkyldithiophosphate, molybdenium disulfide, molybdenum dialkyldithiocarbamate and other organic molybdenum salt containing alkyl; and the organic ester is tetrabutyl titanate, phosphate ester or combination of tetrabutyl titanate and phosphate ester.

The invention relates to a synthesis method of a supported MoS2 catalyst. The method comprises the following steps: preparing a macropore-mesopore-micropore composite hierarchical pore aluminum phosphate AFI molecular sieve carrier at normal pressure or a low authigenic pressure through adopting an ionothermal synthesis technology; and dipping the prepared hierarchical pore aluminum phosphate AFI molecular sieve carrier in a sulfur-containing mother liquor, drying the immersed carrier, and carrying out high temperature roasting to prepare the hierarchical pore molecular sieve supported MoS2 catalyst. The ionothermal synthesis technology has the advantages of recovery and repeated use of an ionic liquid, low synthesis cost, no discharge of acids, alkalis or waste liquids in the synthesis process, and environmental protection. The hierarchical pore molecular sieve supported MoS2 catalyst prepared in the invention has the advantages of large specific surface area, large pore volume, and potential application values in hydrodesulfurization, hydrocracking and other catalytic reactions.

The invention belongs to the technical field of surface treatment, and discloses an environment-friendly degreasing agent and a preparation method and application thereof. Based on the total weight of the degreasing agent, the degreasing agent comprises, by weight, 15-20% of sodium carbonate, 20-30% of sodium gluconate, 5-10% of a surfactant, 25-30% of sodium metasilicate, 10-20% of a metal ion chelating agent and 5-15% of sodium hydroxide. The degreasing agent does not contain phosphorus, is environmentally friendly, is convenient to use, and is beneficial to reducing the cost, and the grease removal efficiency is up to 99% or above.

The invention discloses a method for preparing Zn-Sn-O superlattice nanoparticles by utilizing epitaxial growth of ZnO particles. The method comprises the following steps: step 1, preparing a Zn-Sn-Oprecursor: placing ethanol amine into a solvent of ethylene glycol methyl ether to obtain a saturated organic solution; adding SnCl4.5H2O and Zn(CH3COO)2.2H2O to the saturated organic solution according to an atomic ratio of Sn:Zn of 1:1; and performing stirring to form a gel, and performing aging to obtain the required Zn-Sn-O precursor; and step 2, preparing the Zn-Sn-O superlattice nanoparticles: placing the ZnO particles into a solvent of ethylene glycol methyl ether to obtain a ZnO particle solution; performing ultrasonic crushing, performing defoaming, adding the Zn-Sn-O precursor prepared in the step 1, and performing stirring uniformly to obtain a mixed solution; and performing ultrasonic crushing on the mixed solution, performing defoaming, performing drying, and finally performing annealing to obtain the target product. The preparation method disclosed by the invention is simple, environmentally friendly, and inexpensive; and the prepared Zn-Sn-O superlattice nanoparticles have uniform particle size distribution, high purity, good dispersibility and complete crystallinity, and are easy to control.

A system and method for improving electrochemical power sources through the dispensing, encapsulation and dispersion into galvanic chambers of an electrochemical cell. Features of the method include the optimization of the concentration levels of chemicals involved in desired energy producing reactions.

The invention relates to prunella plant extract which comprises total triterpene extracts forming the active ingredients; in the total triterpene extracts, the content of ursolic acid is 10.0-45.0wt%, and the content of total triterpene is 50.5-98.0wt%. The prunella plant extract also contains total phenolic acid extracts forming active ingredients; in the total phenolic acid extracts, the content of rosmarinic acid is 14.0-65.0wt%, and the content of total phenolic acid is 70.5-99.0wt%. The invention also relates to a preparation method of the composition and the application in the medicine.

A cobalt-based catalyst for direct dehydrogenation of isobutane to prepare isobutene, and a preparation method and application thereof are disclosed. Gamma-Al2O3 is adopted as a carrier of the cobalt-based catalyst, CoO is adopted as an active component and is loaded into the carrier, and based on the weight of the carrier, the loading capacity of the CoO is 5-15%. The method includes loading a cobalt nitrate solution onto the gamma-Al2O3 carrier through a dipping method, performing ultrasonic vibrating, and then performing drying, calcining and molding to obtain the catalyst. The catalyst hascharacteristics of high stability, good activity, a small rate of deactivation due to carbon deposition, and capability of being environmentally friendly and cheap. A problem that catalysts in the prior art are expensive and cause serious harm to human bodies and the environment is solved.

The invention provides a steel surface treating agent with a self-repairing function. The steel surface treating agent comprises, by mass, 30-45% of carrier aqueous resin, 2-5% of a wear resisting agent, 3-5% of a blocking agent, 4-10% of a regulator, 2-4% of a pickling promoter, 3-6% of inorganic powder, 3-5% of a stabilizer, and the balance of deionized water; and the carrier aqueous resin is an aqueous resin, lubricating oil and nickel-iron alloy powder mixture, and is activated. The steel surface treating agent has a substantial repairing effect on friction damaged steel surfaces, allows the repaired steel surfaces to still have excellent wear resistance, and has the advantages of effective removal of oxides possibly existing in the steel surfaces, short cleaning time, environmental protection, and realization of the excellent corrosion and etching resistance of the steel surfaces.

The invention relates to a multi-level structure MXene@double-activated cunninghamia lanceolata composite material electrode, and a production method and an application thereof. Cunninghamia lanceolata has a porous structure with a vertical pore channel, ion electron transmission is facilitated, activated carbon with a multilevel pore channel structure is obtained by adopting a KOH and ZnCl2 solution two-step activation method, a specific surface area is increased, and then MXene nanosheets are impregnated to produce a multi-level structure MXene@ double-activated cunninghamia lanceolata electrode which is used for a supercapacitor and has a high surface capacitance, a good rate capability and good cycle performance.

The invention discloses a Cu/SiO2 catalyst. A preparation method for the Cu/SiO2 catalyst comprises: by taking SiO2 as a carrier, loading an active component copper, wherein the loading capacity of copper is 10-40wt%; preparing a copper ammine solution through precusor salt of copper and ammonia water; then adding polyethylene glycol; then adding the SiO2 carrier, stirring, drying, roasting and reducing the mixture to prepare the Cu/SiO2 catalyst with high dispersity and high activity; and catalyzing dimethyl maleate for one-step hydrogenation to efficiently synthesizing tetrahydrofuran by using the Cu/SiO2 catalyst. The Cu/SiO2 catalyst disclosed by the invention has the advantages of being high in raw material conversion rate and good in target product selectivity.

The invention relates to rubber seed oil-based epoxy fatty acid methyl ester and a preparation method and application thereof. After being degummed, rubber seed oil and methanol are subjected to pre-esterification and ester exchange reaction so that rubber seed oil-based fatty acid methyl ester rough product is obtained, the rubber seed oil-based fatty acid methyl ester rough product is subjected to crystallization and separation at low temperature so that UFAMEs (unsaturated fatty acid methyl esters) rich in polyene is obtained, products from epoxidation can be allowed to stand and delaminate, and finally the rubber seed oil-based epoxy fatty acid methyl ester is obtained after the upper oil phase is neutralized, dehydrated and adsorbed. The epoxide value is equal to or larger than 5.0%, the flash point is equal to or larger than 200 DEG C, the resistivity is equal to or larger than 1.0X109 ohmm, the tincture is smaller than or equal to 180, the acid value ranges from 0.45-0.5mgg-1, and the heating loss is smaller than or equal to 0.5. The raw materials of the rubber seed oil-based epoxy fatty acid methyl ester are easy to obtain so that the cost thereof is low. The rubber seed oil-based epoxy fatty acid methyl ester is high in performance and stable in quality and suitable for industrial production. The preparation method of the rubber seed oil-based epoxy fatty acid methyl ester is simple in process, convenient in operation, short in production cycle, low in energy consumption and low in pollution during production.