30 results about "Activated complex" patented technology

Provided is a method for producing a red phosphor which is a Mn-activated complex fluoride represented by formula (1), A2MF6: Mn (1) (M is one type or more of a tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn, and A is one type or more of an alkali metal selected from Li, Na, K, Rb, and Cs, and includes at least Na and / or K.), wherein, as a reactive source, a solid of a complex fluoride represented by formula (2), A2MF6 (2) (M and A are as described above) and a solid of a manganese compound represented by formula (3), A2MnF6 (3) (A is as described above) are mixed and heated at a temperature of from 100 DEG C to 500 DEG C. According to the present invention, a Mn-activated complex fluoride phosphor having favorable luminescence properties can be obtained without using hydrofluoric acid in a main step.

A red phosphor in the form of a Mn-activated complex fluoride having the formula: A2MF6:Mn wherein M is one or more tetravalent elements selected from Si, Ti, Zr, Hf, Ge, and Sn, and A is one or more alkali metals selected from Li, Na, K, Rb, and Cs, and contains at least Na and / or K, is surface treated with a treating solution containing a surface treating agent selected from an organic amine, quaternary ammonium salt, alkyl betaine or fluorochemical surfactant, alkoxysilane, and fluorinated polymer.

In order to provide crystals of a florigen-activating complex obtained by binding a florigen, a 14-3-3 protein and a bZip transcription factor, and to control the flowering of plants by using said crystals to regulate the mechanisms of interaction between these substances, Hd3a is bound to FD1 via GF14c to form a florigen-activating complex, crystals are prepared from the florigen-activating complex, steric structural information is obtained using the crystals of the florigen-activating complex, and the steric structural information is used to control the interaction mechanism of the florigen and the like in order to thereby control the flowering of a plant.

A red fluorescent substance includes an Mn-activated complex fluoride represented by the formula (1) below: A<1>2MF6:Mn (1) (wherein, letter M is one or two or more of tetravalent elements selected from Si, Ti, Zr, Hf, Ge, and Sn, with Ti or Ge being essential; and symbol A<1> is one or two or more of alkali metals selected from Li, Na, K, Rb, and Cs, with at least one of Na, Rb, and Cs being essential), wherein the red fluorescent substance has an emission spectrum having a peak between 600 to 650 nm, a fluorescent life time up to 5.0 milliseconds at room temperature, and an internal quantumefficiency at least 0.60 at the time of excitation at 450 nm. Because of the short fluorescent life time, high emission intensity, and high emission efficiency, the red fluorescent substance is suitable for use in the display device that needs high-speed high-definition rendering.

The present invention relates to an Mn4+-activated complex fluoride phosphor with improved moisture resistance due to modification of the particle surface, and a light emitting element and light emitting device having excellent color rendering properties and stability due to the use of this phosphor.The phosphor of the present invention is characterized in that it is represented by the general formula: A2MF6:Mn4+, wherein element A is an alkali metal element comprising at least K, element M is one or more metal elements chosen from among Si, Ge, Sn, Ti, Zr and Hf, F is fluorine, and Mn is manganese, wherein the phosphor comprises Ca in a concentration range of at least 20 ppm and at most 10,000 ppm or Cl in a concentration range of at least 20 ppm and at most 300 ppm.

The invention discloses a garbage permeate wastewater treatment agent based on modified fly ash and a preparation method. The composition comprises the following raw materials in parts by weight: fly ash fine powder 50-60, sodium bicarbonate 8-10, Polydimethyldiallyl ammonium chloride 11‑17, cationic polyacrylamide 9‑10, hydroxymethyl chitosan 10‑20, chitosan quaternary ammonium salt 10‑20, montmorillonite powder 20‑24, biological Sludge 6-10, magnetized tourmaline powder 12-15, basic alumina 8-10, loofah 40-50, appropriate amount of ethanol, appropriate amount of deionized water, appropriate amount of water. The present invention uses sodium bicarbonate to pretreat the coal ash powder, which improves the pore size and surface area ratio of the coal ash powder, and then further composites and modifies the activated composite powder to improve the adsorption efficiency. The present invention also realizes the coal ash powder The advantages of high-capacity, easy-to-separate, and easy-to-recover adsorbents.

Provided is a method for producing a red phosphor which is a Mn-activated complex fluoride represented by formula (1), A2MF6:Mn (1) (M is one type or more of a tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn, and A is one type or more of an alkali metal selected from Li, Na, K, Rb, and Cs, and includes at least Na and / or K.), wherein, as a reactive source, a solid of a complex fluoride represented by formula (2), A2MF6 (2) (M and A are as described above) and a solid of a manganese compound represented by formula (3), A2MnF6 (3) (A is as described above) are mixed and heated at a temperature of from 100° C. to 500° C. According to the present invention, a Mn-activated complex fluoride phosphor having favorable luminescence properties can be obtained without using hydrofluoric acid in a main step.

The purpose of the present invention is to provide organometallic salt compositions that are useful as lubricant additives and / or in lubricant additive compositions to reduce friction and wear, and also have improved solubility in all four types of hydrocarbon base oils (Groups I-IV) at a variety of concentrations and under a variety of conditions. The organometallic salt composition is derived from at least one long chain monocarboxylic acid and a single metal in combination with at least one short or medium branched-chain monocarboxylic acid. The compositions are particularly useful in combination with activated complexes comprising a first metal component, a second metal component and particles comprising the first metal component.

The invention discloses a partial zinc blende activated complex copper-lead-zinc sulfide ore differential flotation separation method. The method comprises the steps that by adding a flotation rate regulator and a pH regulator, the flotation rate of copper pyrites and non-activated zinc blende is lowered, the activated zinc blende flotation rate is increased, and bulk concentrate adopting the activated zinc blende as the main component is obtained through differential flotation; on the basis of the flotation rate regulator and the pH regulator, the flotation rate difference between the copperpyrites and the non-activated zinc blende is increased, high-grade copper concentrate is obtained through flotation separation preferentially, and zinc blende and a small amount of galena can continueto be recycled in nonfloat. The method achieves mineral individuation and differential flotation separation, high-grade copper concentrate can be obtained, meanwhile, the comprehensive recycling rateof copper zinc in sample ore is increased, the flow technology is easy to implement, the economic benefits are remarkable, and comprehensive recycling of hard-dressing complex copper-lead-zinc sulfide ore resources is effectively achieved.

A coated phosphor comprises phosphor particles, wherein said phosphor particles comprise manganese-activated complex fluoride phosphors; and a coating on individual ones of said phosphor particles, said coating comprising a layer of carboxylic acid material encapsulating the individual phosphor particles.

Provided is a method of producing a Mn-activated complex fluoride phosphor, the method including: mixing a red phosphor as a Mn-activated complex fluoride represented by the following formula (1):K2MF6:Mn  (1)wherein M is one or two or more of tetravalent elements selected from the group consisting of Si, Ti, Zr, Hf, Ge and Sn and necessarily includes Si, with K2MnF6 in solid state and optionally with a hydrogenfluoride represented by the following formula (2):AF.nHF  (2)wherein A is one or two or more of alkali metals and / or ammonium selected from the group consisting of Li, Na, K, Rb and NH4 and necessarily includes K, and n is a number of 0.7 to 4, in solid state; and heating the resulting mixture at a temperature of 100 to 500° C.According to the present invention, it is possible to obtain a Mn-activated complex fluoride phosphor which can be used with smaller amount as compared to those according to the related art.

The invention provides a fluorescent material for white-light LEDs and a manufacturing method thereof. According to the fluorescent material, excitation light sources within the range of ultraviolet to green ray are excitable and rare earth Eu ions are used as a main activator. The material has illuminant color from blue system to red system. The composition of the fluorescent material is MxA delta ByOzC gamma: eta Eu, zeta D / omega T. The material is characterized in that the material is a multiphase structure composed of a rare earth ion-activated silicate or phosphate or borate fluorescent solid solution phase and one or more elements of inert metal particles such as Au, Ag, Pt and Pd. With the presence of the inert metal particles in the multiphase structure, luminescence property of the fluorescent solid solution phase can be improved obviously. After excited by ultraviolet-blue green light within the emission peak wavelengths of 300-500 nm, luminescent spectrum with one or more peaks within the peak wavelengths of 450-600 nm can be emitted, and luminescence from blue to orange red can be shown. The multiphase fluorescent material is applied in manufacturing of LED devices.