111 results about "Magnesium sulfide" patented technology

The invention provides a self-remediating projectile, i.e., an environmentally-remediating bullet, slug, shot, missile, or other ballistic projectile. An environmental remediation agent (e.g., a calcium or magnesium sulfide, phosphate, or similar material), preferably in combination with a water-soluble or biodegradable polymer, acts as a coating for a conventional projectile, rendering it less water soluble and, hence, less prone to corrosion. Also provided are a method of making a self-remediating projectile, an environmentally remediating target, and a method of remediating an area polluted with spent ammunition.

The invention discloses a composite zinc removing agent for treating wastewater containing zinc, belonging to the field of sewage treatment in environmental protection. The composite zinc removing agent is prepared by compounding organic matters and inorganic matters, wherein the organic matters comprise one or two of sodium citrate, tricalcium citrate, sodium oxalate, potassium oxalate and hydroxyethylidene bisphosphonate, and the inorganic matters comprise two or more of sodium sulfide, magnesium sulfide, ferrous sulfate and aluminum sulfate; in terms of mass ration, the sodium citrate accounts for 20 to 80 percent, the tricalcium citrate accounts for 20 to 80 percent, the sodium oxalate accounts for 20 to 80 percent, the potassium oxalate accounts for 20 to 80 percent, the hydroxyethylidene bisphosphonate accounts for 20 to 80 percent, the sodium sulfide accounts for 10 to 40 percent, the magnesium sulfide accounts for 10 to 40 percent, the ferrous sulfate accounts for 10 to 40 percent, and the aluminum sulfate accounts for 10 to 40 percents; and the composite zinc removing agent prepared according to the proportion is added into the wastewater containing the zinc under the condition that a pH value is between 4.0 and 6.0, the wastewater is stirred for 10 to 30 minutes and is subjected to air flotation treatment, a layer of residue floating on the surface of the wastewater is finally scraped by using a scraping machine, and yielding water can be lower the national discharge standard I. The composite zinc removing agent has the characteristics of simple process flow, lower running cost, no sludge generation, high zinc removing effect and the like.

The invention discloses a novel screening machine, and relates to magnesium sulfide production devices, in particular to a screening device of magnesium sulfide raw materials. The novel screening machine comprises a screening groove (1), double layers of screening nets (2) are arranged in the screening groove (1) in an up-and-down mode, the screening groove (1) is supported by two supports (3) which are arranged left and right, the screening groove (1) is of a slant structure with the left being high and the right being low, a groove is formed in the top of each groove (3), the two sides of the screening groove (1) are provided with supporting shaft heads (4), the supporting shaft heads (4) are arranged in the grooves, a compression spring (5) is arranged under each supporting shaft head (4), a motor (6) is arranged under the left side of the screening groove (1), a rotation shaft of the motor (6) is provided with an eccentric wheel (7), and the eccentric wheel (7) abuts against the bottom of the screening groove (1). The novel screening machine solves the problems that in the producing process of magnesium sulfide, an existing screening machine is low in efficiency and unstable in vibration.

The invention relates to preparation of a sulfur-doped graphene-like mesoporous carbon nano-material. A porous carbon nano-material has a very high application value in the field of supercapacitors, Li-ion battery negative electrodes, catalysis, adsorption and the like. A thermal reduction reaction between magnesium powder and carbon disulfide gas is utilized to obtain the mesoporous graphene-likecarbon nano-material, so that high-yield preparation of the high-quality graphene-like carbon material can be realized. Liquid carbon disulfide is bubbled with argon, volatile steam of liquid carbondisulfide is taken into a reaction cavity to react with magnesium powder at 550-650 DEG C to obtain a carbon nano-material and magnesium sulfide mixture. The carbon nano-material and magnesium sulfidemixture is sequentially washed and pickled and subjected to freeze-drying to obtain the loose and light graphene-like mesoporous carbon nano-material of which the sulfur doping percent is about 6%. As the carbon nano-material is prepared by consuming magnesium powder to reduce carbon disulfide, the advantages of low cost and high yield are achieved. The introduced sulfur doping facilitates application of the sulfur-doped graphene-like mesoporous carbon nano-material to electrochemical energy storage electrodes.

The invention discloses a method for preparing metal and magnesium sulfide with metal sulfide. The method is characterized in that metal sulfide powder or a metal sulfide sheet formed by pressing is compounded with a current collector to be used as a cathode, graphite is taken as an anode, electrolyzation is performed for 1-4h in molten magnesium chloride or a mixture of magnesium chloride and alkali metal chloride with the working temperature being 400-750 DEG C and the electrolysis voltage being 1.0-2.6V, wherein the working temperature is higher than a melting point of a corresponding metalproduct, at the inert atmosphere, and a cathode product is corresponding molten metal and the magnesium sulfide; after the product is cooled, and separated metal is taken out, ultrasonic cleaning isperformed by adopting dimethyl sulfoxide to obtain the magnesium sulfide. The invention provides the method for preparing metal and magnesium sulfide with metal sulfide, which is low in energy consumption and safe in process and is environmentally friendly.

The invention discloses a method for treating wet magnesium desulfuration wastewater, which comprises the processes of slurry cooling, anaerobic reaction, aerobic reaction and elemental sulfur reclamation. The method is characterized by comprising the following steps of: delivering the slurry in an absorption tower in a cooling circulation tank to reduce the temperature of the slurry, regulating the pH value of the slurry by adding alkali liquor, discharging the cooled desulfuration slurry into a biological anaerobic reaction tank, reducing magnesium sulfite and magnesium sulfate in the slurry into sulfide or hydrogen sulfide under the action of efficient sulfate reducing bacteria, pumping the wastewater into an aerobic reaction tower, and oxidizing the magnesium sulfide or the hydrogen sulfide into elemental sulfur under the action of sulfur bacteria; and discharging the wastewater containing the elemental sulfur into a sedimentation tank, separating sludge and suspension, and dryingthe solid to obtain the elemental sulfur. By the treatment method provided according to the characteristics of high sulfite/sulfide solution of the magnesium desulfuration wastewater, the wastewater can be effectively treated, and reclamation, harmlessness and high value of wastes are realized at the same time. The method is suitable for treating the magnesium desulfuration wastewater.

Water-based acrylic polyurethane top-coat is prepared from the following raw materials by a weight proportion: 150-200 parts of water-based acrylic resin, 200-300 parts of deionized water, 1-3 parts of defoamer, 180-200 parts of titanium dioxide, 1-3 parts of neutralizing agent, 2-6 parts of aluminium triphosphate, 100-150 parts of precipitated barium sulphate, 10-20 parts of rheological assistant, 2-4 parts of flash rusting inhibitor, 25 parts of talcum powder, 1-3 parts of flatting agent and 0.5-2 parts of catalyst; the top-coat is characterized by also being prepared from 2-4 parts of antioxidant, 1-4 parts of nanometer magnesium sulfide and 1-4 parts of ultraviolet light absorber. The water-based acrylic polyurethane top-coat is non-pollution, better in water resistance, chemical resistance, abrasive resistance and weather fastness, long in service life and high in hardness.

The invention aims to provide a method for preparing a novel buffer layer zinc oxide-sulfur target material. The target material is mainly composed of zinc oxide, at the same time vulcanized magnesium, vulcanized zinc, and a third oxide are added, and the buffer layer carrier concentration is controlled to obtain a better PN characteristic. The preparation method of the multi-oxide target material comprises firstly-used technologies of slurry casting and mid-high temperature sintering so as to improve the target material uniformity and compactness, prolong the target material service life, increase the utilization rate of the target material, and improve the quality and performance of sputtered film. Through the formula design and improved target material quality, the conversion rate of CIGS solar battery is improved, the production cost is reduced, and the demand on batch production is fulfilled.

The invention provides a desulphurization catalysis improved synergist. The synergist is prepared from the following raw materials by weight: 10 to 15 parts of benzoic acid, 6-14% of adipic acid, 10-18% of magnesia, 7-16% of magnesium sulfide, 20-26% of calcium carbonate, 20-26% of calcium chloride, 2-5% of manganese sulfate, 2-5% of potassium permanganate, 3-6% of sodium hypochlorite, 2-5% of polysiloxane and 3-6% of silicon dioxide. The synergist provided by the invention can improve desulphurization efficiency, reduce the number of operating circulating slurry pumps and lower a liquid-gas ratio in desulphurization operation, thereby achieving the purposes of energy conservation and reduction in operation cost.

The invention discloses a planting method of high-yield and drought-resisting rice. The method comprises the steps of seed selection, wherein common rice seeds are selected as a seed source; land selection and soil preparation, wherein loose and fertile sandiness or semi-sandiness soil is regarded as planting land; sowing; transplanting and planting; field management; disease and pest control, wherein before transplanting is conducted, dexon 500-fold dilusion added with water is adopted to be poured and sprinkled to per mu of land in the planting soil, and conducting nursery soil disinfection; after transplanting is conducted for 15 days, humic acid, chitosan and water are prepared into a solution to be sprayed onto leaves, and conducing spraying every 5-7 days. According to the planting method of the high-yield and drought-resisting rice, besides applying conventional fertilizers like urea in each stage in the growth of the rice, calcium chloride, magnesium sulfide, copper sulfate, ferrous sulfate, and irrigation water are prepared into a solution to be sprayed onto the leaves or be irrigated onto the land, and the dose of each component is adjusted according to all growth phases of the rice. According to the planting method of the high-yield and drought-resisting rice, high-yield and high-quality planting of the rice can also be achieved even in a drought land, and the stress resistance is strong.

The invention discloses a preparation method of a magnesium sulfur battery electrolyte containing lithium ion additive and an application thereof. The preparation method of the magnesium sulfur battery electrolyte containing lithium ion additive adds excess metal lithium into the magnesium sulfur battery electrolyte without additive to generate a magnesium sulfur battery electrolyte containing lithium ion additive. The magnesium sulfide battery electrolyte containing lithium ion additive prepared by the method can be used in magnesium sulfide battery and magnesium ion battery. A magnesium sulfur battery electrolyte contain lithium ion additive in that invention is prepared by a method of metal lithium self-generation in the electrolyte, the cost is low, the method is simple, and large-scale production is easy to realize. The electrolyte of the magnesium sulfur battery containing lithium ion additive prepared by the invention does not introduce impurity anions, avoids the electrochemical regulator produced by the electrolyte due to the introduction of the additive, has good oxidation stability, and can realize the high rate charge and discharge of the magnesium sulfur battery.

Provided is an organic electroluminescent device, comprising an anode, a hole injection layer, a hole transport layer, a luminous layer, an electron transfer layer, an electron injection layer, and a cathode stacked in sequence. The cathode layer is formed by a first film layer, a doping layer, and a second film layer. The material of the first film layer is selected from at least one of indium-tin oxide target, aluminum-zinc oxide target, and indium-zinc oxide target. The materials of the doping layer contain metal sulfides, bipolar metallic oxides, and metallic oxides. The materials of the metallic oxides are selected from at least one of zinc oxide, magnesium oxide, titanium dioxide, and zirconia. The materials of the bipolar metallic oxides are selected from at least one of molybdenum trioxide, tungstic oxide, and vanadium pentoxide. The metal sulfides are selected from at least one of zinc sulfide, cadmium sulfide, magnesium sulfide, and copper sulphide. The material of the second film layer is the same with the material of the first film layer. The luminescence efficiency of the organic electroluminescent device is high. The invention also provides a method for preparing the organic electroluminescent device.

The invention belongs to the technical field of lithium ion battery electrode material, and more specifically relates to a nano magnesium sulfide loaded graphene composite material, and a preparation method thereof. According to the preparation method, nano magnesium hydride dispersed on the surface of graphene is taken as a precursor, elementary sulfur is taken as a sulfur source, and thermal evaporation and high temperature vulcanization are adopted to prepare the nano magnesium sulfide loaded graphene composite material. In the nano magnesium sulfide loaded graphene composite material, nano magnesium sulfide possesses relatively high lithium storage activity and theoretical capacity; flexible thin graphene is used for ensuring uniform dispersion of nano magnesium sulfide, ion and electron transmission speed is increased, and electrical conductivity is increased; domain limitation effect of graphene on magnesium sulfide particles is beneficial for relieving volume expansion of magnesium sulfide particles in lithium intercalation and de-intercalation process, and relieving agglomeration of active materials. According to the preparation method, the synergistic effect of nanocrystallization and graphene is capable of improving stability of magnesium sulfide in charge-discharge process, and providing the lithium ion battery electrode material with relatively high capacity and electrochemical cyclic stability.

The invention discloses efficient welding bridge steel and a manufacturing method thereof, and relates to the technical field of steel production. The efficient welding bridge steel comprises the following chemical components, by mass, 0.05%-0.08% of C, 0.10%-0.30% of Si, 1.10%-1.50% of Mn, less than or equal to 0.015% of P, less than or equal to 0.0050% of S, 0.020%-0.040% of Nb, 0.010%-0.040% of V, 0.006%-0.020% of Ti, less than or equal to 0.05% of Cr, 0.10%-0.30% of Ni, less than or equal to 0.05% of Mo, less than or equal to 0.05% of Cu, less than or equal to 0.0005% of B, 0.025%-0.050% of Al, 0.0010%-0.0030% of Mg, and less than or equal to 0.0050% of N,Ca is not added, and the balance is Fe and impurities. Fine dispersed inclusions taking magnesium oxide, magnesium sulfide and magnesium aluminate spinel as nucleation are generated through a metallurgical technology, and ferrite and a small amount of pearlite structures taking magnesium particles as nucleation conditions are obtained by adopting a TMCP rolling process and normalizing treatment, so that the welding performance of bridge steel is improved.

The invention discloses a flame-retardant and aging-resistant composite heat-preservation material, as well as a preparation method and application thereof. The composite heat-preservation material comprises the following components: polystyrene particles and a mixture consisting of magnesium oxide, magnesium sulfide and a superfine efficient building material additive. The invention further discloses the method for preparing the composite heat-preservation material and the application of the composite heat-preservation material in the heat-preservation of a building. The flame retardance of the composite heat-preservation material can reach an A1-level standard, and the composite heat-preservation material has high heat-preservation performance and aging resistance. In addition, a heat-preservation plate made from the composite heat-preservation material has higher compressive strength, anti-permeability and chemical corrosion resistance, and has the characteristics of lightweight, good fireproof effect, high strength, good convenience in construction, short construction cycle, good heat-preservation effect and the like.

The invention provides an organic light-emitting device comprising a conductive anode glass substrate, a hole injection layer, a hole transport layer, a luminescent layer, an electron transport layer, an electron injection layer and a composite cathode layer. The above-mentioned layers are successively laminated. The composite electrode layer includes a doping layer, a titanium dioxide layer, and a passiviation layer, wherein the layers are successively laminated. The doping layer is made of a mixing material formed by metal sulfide, a metal, a metal phthalocyanine compound; the metal sulfide can be zinc sulfide, cadmium sulfide, magnesium sulfide or copper sulfide; the metal can be silver, aluminum, platinum or gold; and the metal phthalocyanine compound can be copper phthalocyanine, zinc phthalocyanine, vanadium phthalocyanine, or magnesium phthalocyanine. And the passiviation layer is made of silicon dioxide, aluminium oxide, or copper oxide. Because of the composite cathode layer, the light can be scattered and then be emitted to the bottom of the device, thereby improving the luminous efficiency of the device. In addition, the invention also provides a preparation method of the organic light-emitting device.

Provided is an organic electroluminescent device, comprising an anode, a hole injection layer, a hole transport layer, a luminous layer, an electron transfer layer, an electron injection layer, and a cathode stacked in sequence. The cathode layer is formed by a metallic oxide doping layer, an organic electron transport material doping layer, and a metal sulfide doping layer. The metallic oxide doping layer contains metallic oxides and metal sulfides doped in the metallic oxides. The metal sulfides are selected from at least one of zinc sulfide, cadmium sulfide, magnesium sulfide, and copper sulphide. The organic electron transport material doping layer contains an organic electron transport material and metal doped in the organic electron transport material. The metal sulfide doping layer contains metal sulfides and titanium dioxide doped in the metal sulfides. The metal sulfides are selected from at least one of zinc sulfide, cadmium sulfide, magnesium sulfide, and copper sulphide. The luminescence efficiency of the organic electroluminescent device is high. The invention also provides a method for preparing the organic electroluminescent device.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a sulfide precipitation method for treating wastewater containing heavy metal ions. The method comprises the following steps: heating the wastewater to 30-40 DEG C, and controlling the pH value at 6-8; and adding an inorganic sulfide into the wastewater containing heavy metal ions, reacting the heavy metal ions with the inorganic sulfide to generate water-insoluble metal sulfides, and performing standing stratification to realize wastewater treatment, wherein the inorganic sulfide is one or more of sodium sulfide, potassium sulfide, calcium sulfide, magnesium sulfide and lithium sulfide; and the inorganic matter is added according to the removal amount of the heavy metal ions as per 90-110% of the stoichiometric mol ratio of the heavy metal ions to sulfur in the generated metal sulfides. The sulfide precipitation method provided by the invention has the advantages of cheap and accessible reagents, low addition amount, simple removal process, low investment and operation cost and the like; and the removal rate of the heavy metal ions is up to 99% or above.

An organic light-emitting device comprises an anode, a hole injection layer, a hole transmission layer, a lighting layer, an electronic transmission layer, an electronic injection layer and a cathode stacked in sequence; the cathode layer comprises an organic electronic transmission dope layer, a VB group oxide layer, a metal layer and a metal sulfide layer; the organic electronic transmission dope layer comprises an organic electronic transmission material and a bipolar metal oxide doped in the organic electronic transmission material; the bipolar metal oxide is made of at least one material from a group formed by molybdenum trioxide, tungsten trioxide and vanadium pentoxide; the VB group oxide layer is made of at least one material from a group formed by tantalum pentoxide, niobium pentoxide and vanadium pentoxide; the metal layer material is selected from at least one from a group formed by silver, aluminum, platinum and gold; the metal sulfide layer material is selected from at least one from a group formed by zinc sulfide, cadmium sulfide, magnesium sulfide and copper sulfide; the organic light-emitting device is high in lighting efficiency; the invention also provides an organic light-emitting device making method.

The invention relates to an organic electroluminescence device and a preparation method thereof. The device comprises a cathode, wherein the cathode comprises a crystallizing layer, a first doping layer and a second doping layer and a second doping layer; the material of the crystallizing layer is 1,2,4-triazole derivatives, 2,2'-(1,3-phenyl)bi[5-(4-tertiary butyl phenyl)-1,3,4-oxadiazole], 2,9-dimethyl-4,7-diphenyl-1,10-orthophenanthrolene or 2,8-bi(diphenyl phosphine oxygroup)dibenzanthracene[b,d]thiophene; the material of the first doping layer comprises rhenium oxide and metallic sulfide; the rhenium oxide is rhenium heptoxide, rhenium dioxide, rhenium trioxide or rhenium sesquioxide; the metallic sulfide is zinc sulfide, cadmium sulfide, magnesium sulfide or copper sulphide; the material of the second doping layer comprises fullerene derivative and metal; the fullerene derivative is footballene, carbon 70, PC61BM or P71BM; the metal is magnesium, strontium, calcium or ytterbium. The device is high in luminous efficiency.

The invention discloses smoke-abatement sulfur-fixation environment-friendly coal and a preparation method thereof. The smoke-abatement sulfur-fixation environment-friendly coal comprises the following compositions in parts by weight: 60-80 parts of raw coal, 10-30 parts of ore asphalt, 4-15 parts of quicklime, 0.2-0.7 parts of ferrocene, and 0.3-0.8 parts of an industrial salt. The above smoke-abatement sulfur-fixation environment-friendly coal employs a high-molecular organic compound-ore asphalt as a basic raw material, and employs ferrocene, the industrial salt and ore aslphat for giving play to effect of fixing sulfur in the reaction, so that sulfur dioxide in the fire coal is reacted and generates magnesium sulfide and calcium sulfide which are kept in ash residue, and the discharge capacity of sulfur dioxide when raw coal is combusted is reduced. Ferrocene, quicklime and ore asphalt give play to the smoke abatement effect. The added industrial salt enables the smoke-abatement sulfur-fixation environment-friendly coal to have relatively fast combustion speed and full combustion during combustion, enables black smoke generated in the raw coal combustion process to become green smoke or white smoke, reduces the smoke release time to be less than 2 min, and relatively accords with environment protection idea.

Provided is an organic electroluminescent device, comprising an anode, a hole injection layer, a hole transport layer, a luminous layer, an electron transfer layer, an electron injection layer, and a cathode stacked in sequence. A cathode layer is formed by a sodium salt layer, a metal doping layer, and a metal sulfide layer. The material of the sodium salt layer is selected from at least one of sodium carbonate, sodium chloride, sodium fluoride, and sodium bromide. The metal doping layer material contains a metal material and a passivation material doped in the metal material. The work function of the metal material is -2.0 eV to -3.5 eV. The passivation material is selected from at least one of silica, alumina, nickel oxide, and copper oxide. The material of the metal sulfide layer is selected from at least one of zinc sulfide, cadmium sulfide, magnesium sulfide, and copper sulphide. The luminescence efficiency of the organic electroluminescent device is high. The invention also provides a method for preparing the organic electroluminescent device.

A multipurpose calcium-based compound desulfurizer comprises the components of, by mass, 50-95 parts of calcium oxide, 5-30 parts of calcium carbide, 1-10 parts of fluorite, 1-5 parts of flaky graphite and 0.1-5 parts of aluminum. The purity of the calcium oxide is larger than or equal to 94%. The desulfurizer is applicable to molten iron desulphurization through a dispersion assisting method, that is, desulphurization equipment is not added, and production time is not occupied; the desulfurizer can also be used for adsorbing magnesium sulfide in a magnesium-based blowing desulfurization process, and the effects of desulfurization and resulfurization prevention are achieved; meanwhile, the desulfurizer can be further used for desulfurizing refined RH molten steel in steel making after mechanical forming. The multipurpose calcium-based compound desulfurizer is made of high-purity main materials which are high in activity, and various catalysts are added, so that compared with products used in the market at present, the desulfurization effect of the desulfurizer is improved by more than 30%, and the desulfurization reaction time of the desulfurizer is shortened by about 50%.

The invention discloses a magnesium-sulfur battery, a transition metal sulfide/sulfur composite positive electrode material and a composite method. The magnesium-sulfur battery comprises a positive electrode containing a transition metal sulfide/sulfur composite positive electrode material, a magnesium ion electrolytic solution and a magnesium metal negative electrode, wherein in the transition metal sulfide/sulfur composite positive electrode material, the transition metal sulfide is MxSy, M is a cation and comprises one or more of Mo, Ti, Cu, Co, V, Fe, Cr, Ni, Mn, Zn, Sc, Nb, Mo, Zr, W, Reand Ta, wherein x is greater than or equal to 1 and less than or equal to 9, y is greater than or equal to 1 and less than or equal to 9, the values of x and y meet the requirement of keeping the compound electrically neutral, the sulfur source comprises one or more of elemental sulfur, MgS and magnesium polysulfide MgSz, z is greater than 1 and less than or equal to 4, and the mass percent of sulfur is 5-95%.