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.

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.

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.