16 results about "Phosphor" patented technology

The invention discloses a phosphor-silicon-containing aggregated flame retardant and a preparation method thereof. The preparation method comprises the following steps: adding 10-(2,5-dihydroxy phenyl)-9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and an acid-binding agent into a reactor loaded with a burette, a condensing tube and a nitrogen protection device, heating to 40 to 100 DEG C; weighing R1, R2-dichlorosilane, adding a solvent, and adding the mixture into the burette; adding the mixture at the temperature of 40 to 100 DEG C dropwise, and performing a thermal reaction for 2 to 10 hours after finishing of dropping; adding a precipitant, performing suction filtration, washing filter cakes with the precipitant, and drying to obtain the phosphor-silicon-containing aggregated flame retardant. The phosphor-silicon-containing aggregated flame retardant has high phosphor content and silicon content, abundant carbon sources, high char forming characteristic, superior flame retardance and thermal stability, and can be applied to high-molecular materials such as flame-retardant polypropylene, polystyrene and epoxy resin.

The invention discloses a phosphor-doped CHA molecular sieve, and a preparation method and application thereof, and belongs to the field of zeolite molecular sieve preparation technology and application. The preparation method is characterized by comprising the following steps: mixing a silicon source, an aluminum source, sodium hydroxide, potassium hydroxide, SAPO-18, AlPO-18 or SAPO-34 seed crystal and distilled water to form uniform gel; performing hydrothermal crystallization, performing washing and drying after performing solid-liquid separation on a crystallized product, thereby obtaining the phosphor-doped CHA molecular sieve which can perform ammonia gas selective catalytic reduction denitration catalysis after being loaded with Cu<2+>. Addition of seed crystal such as SAPO-18 is akey factor for generating the phosphor-doped CHA molecular sieve. The method can be used for preparing the phosphor-doped CHA molecular sieve with high degree of crystallinity under a conventional hydro-thermal synthesis condition, so that ammonia gas selective catalytic reduction denitration (NH3-SCR) low-temperature activity is good.

The invention provides a combined treatment method of leachate and excrement wastewater due to high contents of organic matters and phosphor but insufficient nitrogen in the excrement wastewater and high contents of organic matters and nitrogen but insufficient phosphor in the leachate. Therefore, nitrogen and phosphor in the excrement wastewater and leachate are complemented with each other, nutrient elements required by microbes are balanced, and a biological treatment method is suitable for treatment. According to the method, biological treatment, membrane separation treatment and reverse osmosis deep treatment are adopted, so that the treated discharge water is in accordance with the first-grade requirement of the GB8978-1996 Comprehensive Sewage Discharge Standard of People's Republic of China.

The invention discloses a romaine lettuce soilless culture nutrient liquid. The romaine lettuce soilless culture nutrient liquid consists of the following components in parts by mass: 250-350 parts of rice washing water, 2-5 parts of urea, 1-5 parts of calcium nitrate, 1-5 parts of potassium nitrate, 1-3 parts of monopotassium phosphate, 1-6 parts of potassium sulfate, 0.5-2 parts of magnesium sulfate, 0.1-0.5 part of chelated iron, 0.2-2 parts of borax, 1-5 parts of sodium molybdate, 2-8 parts of elecampane, 1-5 parts of poria cocos and 1-3 parts of alum. The rice washing water used by the romaine lettuce soilless culture nutrient liquid is rich in nitrogen, phosphor, potassium and various trace elements needed for the growth of romaine lettuce; the elecampane and the poria cocos can be added to promote the romaine lettuce to evenly and comprehensively absorb trace elements, and to promote the growth and the root system development of the romaine lettuce, so that the plant resistance is strengthened, the occurrence of physiological diseases is prevented; the nutrition of the romaine lettuce soilless culture nutrient liquid well exceeds nutrients which can be provided by the soil, and thus, the romaine lettuce soilless culture nutrient liquid is relatively beneficial to the growth of the romaine lettuce; and the grown romaine lettuce is completely filled, crisp and tasty in fruit, bright-colored in lettuce leaf and good in quality.

An aging device of a catalytic converter of a vehicle simulates wear-and-tear of a catalytic converter under conditions that simulate to those of a real vehicle by injecting an oil additive or an engine oil mixture containing phosphor (P), zinc (Zn), and etc., into an engine.

A screen printing method of LED module with phosphor includes: board preparation providing an LED module board with a substrate and a plurality of LED sources fixed on the substrate. The LED sources are flip chip structural and the metal electrodes thereof are fixed to the bonding pads of the substrate. A screen board is provided with meshes corresponding to the shiny sides of the LED sources of the substrate one by one. A projection of each mesh to the shiny side of the corresponding LED source has similar shape with the shiny side of the LED source. The top of the screen board is printed with allocated colloidal phosphor until each mesh is coated fully. The printed substrates are baked to solidify the phosphor. The periphery of the shiny side is fully coated.

An electron gun assembly that emits three electron beams, which are arranged in line, toward a phosphor screen includes three cathodes arranged in line, three first grids arranged to face the associated cathodes, and a second grid with an integral structure that is disposed to face a phosphor screen side of the first grids. Each of the first grids is formed of a cup-shaped electrode body having an electron beam passage hole. The electron gun assembly further includes an insulation member through which the three first grids penetrate, the insulation member thus integrally holding the three first grids, a cylindrical member that surrounds the insulation member and has an implant part, and an insulating support member that supports the implant part of the cylindrical member.

The invention provides efficient white light emission glass containing silver nanoparticles, and a preparation method thereof. The efficient white light emission glass is composed of the following components by mole: (60-x)% of SiO2, 20% of Al2O3, 20% of CaO, x% of Li2O, 0.2% of Eu2O3 and y% ofAg2O, wherein 0 =< x <= 10; and 0.1 =< y <= 4. The efficient white light emission glass containing the silver nanoparticles is obtained by the steps of preparing materials according to the above molar ratios, grinding the prepared components thoroughly to uniformly mixed; melting the mixture under an air atmosphere; and finally subjecting the melted mixture to conventional molding and annealing. The efficient white light emission glass has the characteristics of simple glass components, high fluorescent intensity, wide excitation wavelengths, and easily adjustable white light color temperature. The white light glass has the characteristics that the melting process is simple and carried out under the air atmosphere and has strong glass-forming force, low cost and no pollution to environment. The color difference caused by different luminescent lifetimes of trichromatic phosphors is solved; and at the same time, the problems of deliquesce and complex coating of conventional phosphors are prevented. The efficient white light emission glass containing the silver nanoparticles can be used for manufacturing novel white light LED illumination and display devices excited by near ultraviolet chips.