56 results about "Strontium sulfide" patented technology

A patterned phosphor structure, and EL laminate containing same, forming red, green and blue sub-pixel phosphor elements for an AC electroluminescent display. The patterned phosphor structure includes at least a first and a second phosphor emitting light in different ranges of the visible spectrum, but with combined emission spectra contains red, green and blue light, the first and second phosphors being in a layer, arranged in adjacent, repeating relationship to each other to provide a plurality of repeating first and second phosphor deposits. The phosphor structure also includes one or more means associated with one or more of the first and second phosphor deposits, and which together with the first and second phosphor deposits, form the red, green and blue sub-pixel phosphor elements, for setting and equalizing the threshold voltages of the red, green and blue sub-pixel phosphor elements, and for setting the relative luminosities of the red, green and blue sub-pixel phosphor elements so that they bear set ratios to one another at each operating modulation voltage used to generate the desired luminosities for red, green and blue. Photolithographic methods for producing the patterned phosphor structure are also provided. Also provided is an improved dielectric layer for use in an EL laminate, including a pressed, sintered ceramic material having, compared to an unpressed, sintered dielectric layer of the same composition, improved dielectric strength, reduced porosity and uniform luminosity in an EL laminate. Also provided are combined substrate and dielectric layer components or EL laminates containing the pressed thick film dielectric layer, and methods of forming the pressed thick film dielectric layer. A process is also provided for synthesizing strontium sulfide phosphors by providing a source of high purity strontium carbonate in a dispersed form, heating the strontium carbonate in a reactor with gradual heating up to a maximum temperature in the range of 800 to 1200° C., contacting the heated strontium carbonate with a flow of sulfur vapours formed by heating elemental sulfur in the reactor to at least 300° C. in an inert atmosphere; and terminating the reaction by stopping the flow of sulfur at a point when sulfur dioxide or carbon dioxide in the reaction gas reaches an amount which correlates with an amount of oxygen in oxygen-containing strontium compounds in the reaction product which is in the range of 1 to 10 atomic percent.

The invention discloses a method for preparing bismuth sulfide nanorod crystal material, which is suitable for the preparation of sulfide nano crystal materials such as bismuth sulfide. The method is characterized in that it is synthesized by chemical reaction at normal pressure and 100-300°C with molten compound nitrate solvent, the raw materials used are soluble inorganic metal bismuth salt and sodium sulfide or sulfur powder, and the cost is low in the synthesis process , various parameters in the reaction process are easy to monitor and control, less environmental pollution, good uniformity of the reaction system, simple process, easy to scale up production; and the obtained bismuth sulfide has good crystallization, clean surface and uniform size, which is suitable for this process Research on characteristic properties and maximizing the function of nanocrystalline materials.

The invention discloses attapulgite powdery animal depilating agent. The main points of the technical proposal are as follows: the attapulgite powdery animal depilating agent is composed of purified attapulgite clay, sodium sulfide, calcium thioglycollate, strontium sulfide, sodium hydroxide and sodium dodecyl sulfate. The production method of the attapulgite powdery animal depilating agent comprises the following steps: feeding, mixing, milling and packaging into finished attapulgite powdery animal depilating agent. In the attapulgite powdery animal depilating agent, the purified attapulgiteclay serves as the main raw material, and no additional thickening agent and humectant need to be added in; the purified attapulgite clay has good adhesive force and can lead the attapulgite powdery animal depilating agent to be firmly adhered to the surface of the fur, thereby increasing the contact area with the hair and improving the use effect of the depilating agent. The attapulgite powdery animal depilating agent has strong penetrability, can expand and enlarge the hair, solidify, weaken and break the hair follicle protein, and is applicable in the depilation of animals.

The invention discloses a method for treating antimony-bearing sulphide ore. The method comprises the steps that antimony-bearing sulphide ore slurry in the diluted hydrochloric acid system is placed in a slurry tank, a mechanical stirring paddle is arranged in the slurry tank, and the slurry is in a uniformly mixed state; and the slurry enters a swirling electrolysis system at a certain speed through a pneumatic pump, after being electrolyzed, the slurry is discharged from an electrolysis device and continuously enters the slurry tank, and antimony in ore is efficiently extracted after a certain time through the circulation, wherein the technological conditions are that the concentration of diluted hydrochloric acid in the slurry is 110 g / L to 180 g / L, the temperature is 55 DEG C to 85 DEG C, the liquid-solid ratio is (6-12) to 1, and the density of a cathode current is 100 A / m<2> to 200 A / m<2>. According to the method, process is short, reaction speed is high, mass transfer during the reaction process is uniform, and compared with a traditional method, the recovery rate of antimony is greatly increased, antimony in ore is comprehensively and efficiently extracted, and the utilization rate of antimony resources is increased.

A novel process for preparing ultra-fine barium carbonate and strontium carbonate, wherein barium sulphide solution or barium hydrate solution are used as raw material to be carbonized by carbon dioxide in helical channel type revolving bed, obtaining precipitate, then ultramicro fine barium carbonate is obtained through washing, dewatering and drying, and strontium sulfide solution or strontium hydroxide solution are used as raw material to be carbonized by carbon dioxide in helical channel type revolving bed, obtaining precipitate, then ultramicro fine strontium carbonate is obtained through washing, dewatering and drying.

The invention relates to a mineral processing method of antimony sulfide ore. The mineral processing method comprises the following steps: crushing raw antimony sulfide ore, carrying out ore grinding, adding water, stirring, carrying out size mixing, recycling antimony sulfide minerals by adopting a flotation method, and carrying out roughing once, scavenging for three times and concentration for three times to obtain antimony concentrate, wherein lead nitrate is taken as an activating agent, xanthogenate mixture and B sulfur nitrogen are taken as a combined collecting agent and new coniferyl oil is taken as a foaming agent during the roughing, and the lead nitrate is taken as the activating agent and the xanthogenate mixture is taken as a collecting agent during primary scavenging and secondary scavenging. The method provided by the invention has the advantages that floatation collecting capability on the antimony sulfide minerals is strong, recycling effect is good, antimony recovery rate is more than or equal to 93.2% and is increased by 0.98% compared with the prior art, lead-antimony ratio in the antimony concentrate is reduced by more than or equal to 26.8%, and antimony concentrate grade is more than or equal to 50.0%; reaction conditions of the method provided by the invention are neutral, corrosive effect on mineral processing equipment is alleviated, operation safety is improved, and production cost is reduced; and the method provided by the invention is easy to operate, efficient and environmentally friendly.

The invention belongs to the technical field of a material and particularly relates to a nanometer bismuth sulfide electrode material with specific morphologic structure, a preparation method thereof and application of nanometer bismuth sulfide electrode material in a lithium ion battery. The bismuth sulfide electrode material provided by the invention is under a spherical or similar spherical secondary particle state formed by clustering the first particles with bar-shaped structures, wherein a gap is arranged between the first particles; the bar lengths of the first particles are 300-500nm; the diameter is 40-80nm; the secondary particles have microcellular structures; the aperture is 1.8-2nm; the specific area is 20-21cm<3> / g. The bismuth sulfide electrode material provided by the invention has relatively small specific area, small impedance and certain rate discharge characteristic. When the bismuth sulfide electrode material is applied to the lithium ion battery, the specific capacity of the lithium ion battery is increased.

The invention offers a new kind of method producing strontium carbonate using lazurite mineral as raw material. Mix lazurite breeze with reduced iron powders in certain proportion to get black ash, dip black ash in water of opposite flow and get strontium carbonate solution; regard calcined soda as carburizer, make them reactivate at temperature of 90-100deg.C under mixing to form slurry including deposition of strontium carbonate and sodium sulfide solution of low iron, and get deposition of strontium carbonate and sodium sulfide solution of low iron through separating solid and liquid, absterge strontium carbonate with water of opposite flow for 3-5 times, dry it and get product of strontium carbonate of high quality; Mother liquor absterging strontium carbonate for the first time mixes with centrifugal mother liquor of slurry of strontium carbonate and the mixed solution is vaporized by cold boiler which regards heat transfer oil as medium, get byproduct of sodium sulfide of low iron. The producing craft of the invention is simple, the procedure is short with low cost, the investment of equipment is small, quality of main product and byproduct is high, it has a good economical effect.