617 results about "Strontium oxide" patented technology

A catalyst system and a method for reducing nitrogen oxides in an exhaust gas by reduction with a hydrocarbon or oxygen-containing organic compound reducing agent are provided. The catalyst system contains a silver catalyst and a modifier catalyst, where the modifier catalyst contains a modifier oxide, where the modifier oxide is selected from the group consisting of iron oxide, cerium oxide, copper oxide, manganese oxide, chromium oxide, a lanthanide oxide, an actinide oxide, molybdenum oxide, tin oxide, indium oxide, rhenium oxide, tantalum oxide, osmium oxide, barium oxide, calcium oxide, strontium oxide, potassium oxide, vanadium oxide, nickel oxide, tungsten oxide, and mixtures thereof. The modifier oxide is supported on an inorganic oxide support or supports, where at least one of the inorganic oxide supports is an acidic support. The catalyst system of the silver catalyst and the modifier catalyst provides higher NO_x conversion than either the silver catalyst or the modifier catalyst alone.

An organic electroluminescent device having high efficiency, a long life time, and low cost, includes a substrate, a hole injecting electrode and an electron injecting electrode formed on the substrate, an organic material-containing organic layer between the electrodes, and an inorganic insulative electron injecting and transporting layer between the light emitting layer and the electron injecting electrode. The organic layer includes a light emitting layer containing a conjugated polymer, and the inorganic insulative electron injecting and transporting layer comprises three components. The first component is at least one oxide selected from the group consisting of lithium oxide, rubidium oxide, potassium oxide, sodium oxide, and cesium oxide. The second component is at least one of strontium oxide, magnesium oxide, and calcium oxide. The third component consists of silicon oxide, germanium oxide, or mixtures thereof.

The present invention relates to an optical glass using silicic acid group as main body, said optic glass has high expansion coefficient, high Young modulus, excellent weatherability and high transmissivity in the infrared wave zone. Said glass composition contains (mole%) 36-66% of silicon dioxide, 0-12% of aluminium oxide, 0-6% of boric oxide, 0-10% of magnesium oxide, 0-16% of calcium oxide, 0-16% of strontium oxide, 0-16% of baria, 0-8% of zinc oxide, 0-32% of lithium oxide, 0-25% of sodium oxide, 0-25% of potassium oxide, 0-20% of cesium oxide, 0-6% of phosphorus pentoxide, 0-8% of scandium oxide and others.

A sintering aid for a low-temperature cofired medium ceramic material is composed of, by weight, 31%-45% of silicon dioxide, 1%-10% of boron oxide, 5.1%-10% of zinc oxide, 18%-30% of aluminum oxide, 11%-24% of alkaline earth metallic oxide and 5%-15% of oxide with the general formula of R2O3, wherein R refers to at least one of lanthanum, cerium, praseodymium, neodymium, samarium, europium and dysprosium, and the alkaline earth metallic oxide refers to one of magnesium oxide, calcium oxide, barium oxide and strontium oxide. Adding the sintering aid into the low-temperature cofired medium ceramic material enables the prepared low-temperature cofired medium ceramic to have excellent thermal mechanical performance and dielectric performance. In addition, the invention provides the low-temperature cofired medium ceramic material and application thereof and a method for preparing the low-temperature cofired medium ceramic.

A process for the preparation of an organosilicon condensate which comprises reacting together a silicon containing compound having at least one silanol group and a silicon containing compound having at least one —OR group or at least one silanol group (or a compound having both groups) in the presence of strontium oxide, barium oxide, strontium hydroxide or barium hydroxide and optionally a solvent such as water, methanol, ethanol, 1-propanol, 2-propanol, 1-butanol and 2-butanol, acetone or toluene.

An object of the invention is to achieve an organic EL device which is resistant to a deterioration of an inorganic-organic interface, has performance equivalent or superior to that of a prior art device comprising hole and electron injecting and transporting layers using an organic substance, possesses an extended life, weather resistance and high stability, and is inexpensive. This object is accomplished by the provision of an organic EL device which comprises a substrate, a hole injecting electrode and a cathode formed on the substrate, and an organic substance-containing light emitting layer located at least between these electrodes, wherein an inorganic insulating electron injecting and transporting layer is located between the light emitting layer and the cathode, and an inorganic insulating hole injecting and transporting layer is located between the light emitting layer and the hole injecting electrode. The inorganic insulating electron injecting and transporting layer comprises as a main component one or two or more oxides selected from the group consisting of strontium oxide, magnesium oxide, calcium oxide, lithium oxide, rubidium oxide, potassium oxide, sodium oxide and cesium oxide, and the inorganic insulating hole injecting and transporting layer comprises as a main component an oxide of silicon and/or an oxide of germanium. The main component has an average composition represented by (Si1-xGex) Oy where 0</=x</=1, and 1.7</=y</=1.99. The light emitting layer comprises a layer made up of a host substance on a side thereof contiguous to the inorganic insulating electron injecting and transporting layer and/or the inorganic insulating hole injecting and transporting layer. A layer containing a dopant in addition to the host substance is located on the side of the light emitting layer that faces away from the layer made up of the host substance or between them.

An O2-bearing low-Ce RE material with high performance and multiple purposes is a composite oxide consisting of cerium oxide, zirconium oxide and assistant chosen from lanthanum oxide, strontium oxide and yttrium oxide. It is prepared through codeposition and calcining at 500-600 deg.C. It can be used as the carrier and assistant of the catalyst for cleaning the tail gas of car.

An object of the invention is to achieve an organic EL device which has an extended life, weather resistance, high stability, and high efficiency, and is inexpensive as well. This object is accomplished by the provision of an organic EL device comprising a substrate, a pair of a hole injecting electrode and a cathode formed on the substrate, and an organic layer located between these electrodes and taking part in at least a light emission function, wherein between the organic layer and the cathode there is provided an inorganic insulating electron injecting and transporting layer comprising a first component comprising at least one oxide selected from the group consisting of lithium oxide, rubidium oxide, potassium oxide, sodium oxide and cesium oxide, a second component comprising at least one oxide selected from the group consisting of strontium oxide, magnesium oxide and calcium oxide, and a third component comprising silicon oxide and/or germanium oxide.

The invention relates to an alkali-free aluminoborosilicate glass having a coefficient of thermal expansion alpha20/300 of between 2.8.10-6/K and 3.6.10-6/K, which has the following composition (in % by weight, based on oxide): silicon dioxide (SiO2)>58-65, boric oxide (B2O3)>6-11.5, aluminum oxide (Al2O3)>20-25, magnesium oxide (MgO) 4-<6.5, calcium oxide (CaO)>4.5-8, strontium oxide (SrO) 0-<4, barium oxide (BaO) 0.5-<5, with strontium oxide (SrO)+barium oxide (BaO)>3, zinc oxide (ZnO) 0-<2, and which is highly suitable for use as a substrate glass both in display technology and in thin-film photovoltaics.

The present invention provides one kind of supported calcium oxide catalyst and its preparation process and usage in preparing biological diesel oil. The supported calcium oxide catalyst has the co-catalyst of strontium oxide, zinc oxide or lanthanum oxide, carrier of magnesia, silica, alumina or magnesia-alumina, calcium oxide supporting amount of 2-30 wt% of the carrier and co-catalyst supporting amount of 0-16 wt% of the carrier. The supported calcium oxide catalyst has simple preparation process, high repeatability, high reaction activity for preparing biological diesel oil, insolubility in methanol system and easy separation from the reaction system.

An LED lamp includes a light source configured to emit radiation with a peak intensity at a wavelength between about 250 nm and about 550 nm; and a phosphor composition configured to be radiationally coupled to the light source. The phosphor composition includes particles of a phosphor of formula I, said particles having a coating composition disposed on surfaces thereof;

((Sr_1−zM_z)_1−(x+w)A_wCe_x)₃(Al_1−ySi_y)O_4+y+3(x−w)F_{1−y−3(x−w)}  I

wherein the coating composition comprises a material selected from aluminum oxide, magnesium oxide, calcium oxide, barium oxide, strontium oxide, zinc oxide, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, strontium hydroxide, zinc hydroxide, aluminum phosphate, magnesium phosphate, calcium phosphate, barium phosphate, strontium phosphate, and combinations thereof; and

• • A is Li, Na, K, or Rb, or a combination thereof;
  • M is Ca, Ba, Mg, Zn, or a combination thereof; and
  • 0<x≦0.10, 0≦y≦0.5, 0≦z≦0.5, 0≦x≦x.

The invention provides a non-crystalline polyamide resin composition with enough transparency and excellent rigidity, mechanical performance, physical performance and heat resistance, and a product thereof. The composition adopts glass filler which is represented by the mass percentage based on oxide, contains 68-72 percent of silicon dioxide (SiO2), 2-5 percent of aluminum oxide (Al2O3), 2-5 percent of boron oxide (B2O3), 2-10 percent of calcium oxide (CaO), 0-5 percent of zinc oxide (ZnO), 0-5 percent of strontium oxide (SrO), 0-1 percent of barium oxide (BaO), 1-5 percent of magnesium oxide (MgO), 0-5 percent of lithium oxide (Li2O), 5-12 percent of sodium oxide (Na2O) and 0-10 percent of potassium oxide (K2O), wherein the total amount of lithium oxide, sodium oxide and potassium oxideis 8-12 percent.

The invention discloses a catalyst for preparing alcohol through hydrogenation of acetic acid, and a preparation method of the catalyst. The catalyst is a multicomponent load catalyst and comprises ingredients a, b and c, and a carrier, wherein the ingredient a is one or more of calcium, potassium, sodium, barium, strontium, calcium oxide, potassium oxide, sodium oxide, barium oxide and strontium oxide; the ingredient b is one or more of tin, cobalt, molybdenum, nickel, iron, tin oxide, cobalt oxide, molybdenum oxide, nickel oxide and iron oxide; the ingredient c is one of platinum, palladium, ruthenium, rhodium, platinum oxide, palladium oxide, ruthenium oxide and rhodium oxide; the carrier is silicon dioxide, cerium dioxide, titanium dioxide, graphite, aluminum oxide or active carbon; and the mass ratio of the ingredient a to the ingredient b to the ingredient c to the carrier is (1-20):(0.5-2):(0.5-1):100. The multicomponent load catalyst is prepared by a multistep impregnation method, and used for preparing alcohol through the hydrogenation of acetic acid, and results prove that the catalyst is excellent in catalytical performance, long in service life and high in reaction stability.

An aqueous coating composition comprises a metal oxide selected from the group consisting of bismuth oxide, vanadium oxide, manganese oxide, cobalt oxide, zinc oxide, strontium oxide, yttrium oxide, molybdenum oxide, zirconium oxide, lanthanum oxide, oxides of the lanthanide series of elements and combinations thereof and an electrodepositable binder, the binder comprising (a) a phosphorous-containing group

in which X is a hydrogen, a monovalent hydrocarbon, an alkyl group such as an aminoalkyl group, or an oxygen atom having a single covalent bond to the phosphorous atom, and each oxygen atom has a covalent bond to a hydrogen atom, an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, or the resin, with the caveat that at least one oxygen atom has a covalent bond to resin; (b) a carboxylate group separated by from 2 to 4 carbons from an ester group; and (c) a tridentate amine ligand. The coating composition can be electrodeposited on a metal substrate to provide superior corrosion resistance.

The invention provides an unleaded glass powder used for electronic paste and a preparation method thereof. The unleaded glass powder is composed of the following components by mass ratio: 10-60% of diboron trioxide, 2.5-30% of silicon dioxide, 30-75% of bismuth trioxide, 0.1-5% of sodium oxide, 0.1-3% of calcium oxide, 0.5-10% of strontium oxide, 1.5-20% of titanium dioxide, 0.5-8% of zirconium oxide, 0.1-5% of stannic oxide, 0.5-6% of aluminium oxide, 0.5-5% of antimonous oxide and 0.1-5% of calcium fluoride, the components are fully mixed to be uniform and then heated to 1050-1250 DEG C, and heat preservation is carried out for 30-120min, so that raw material is fully melted into glass metal, the glass metal is poured into deionized water to be quenched into glass granules, and ball milling into 320-400 meshes is carried out, thus obtaining the unleaded glass powder. The invention provides an unleaded glass powder with low softening temperature, good chemical stability, appropriate expansion coefficient, acid-base resistance, good abrasive resistance, wide sintering temperature range, low manufacturing cost and no toxic heavy metal oxide, and the unleaded glass powder has wide application range.

The invention relates to medical titanium with a trace element slow-release function or a titanium alloy implant material as well as a preparation method and an application of the medical titanium. The invention adopts the technical scheme that the preparation method comprises the following steps: putting a polished titanium-containing metal sheet into an electrolyte as an anode for anodic oxidation; flushing and drying the titanium-containing metal sheet subjected to anodic oxidation, carrying out heat treatment for 1-3 hours at a temperature of 100-500 DEG C, naturally cooling and ultrasonically cleaning and drying; and putting the dried titanium-containing metal sheet into one of or mixed solution of more than any two strontium hydroxide, strontium acetate, zinc acetate or magnesium acetate, carrying out hydrothermal reaction for 0.5-12 hours in a closed container at a temperature of 100-300 DEG C, naturally cooling, taking out, cleaning and drying, and carrying out heat treatment for 1-3 hours at a temperature of 450-550 DEG C to obtain the medical titanium with the trace element slow-release function or the titanium alloy implant material. The medical titanium or the titanium alloy implant material as well as the preparation method and the application thereof have the beneficial effects that the preparation method is simple and reliable, the loading quantity and the release amount of trace elements of the medical titanium in a nano tube are controllable, the medical titanium and the biological activity on the alloy surface can be better promoted, and the application prospect is good in the medical implant material.

The invention aims at providing a heat-corrosion-resistant composite enamel coating and a preparation method thereof. The heat-corrosion-resistant composite enamel coating is characterized by comprising an enamel matrix and ceramic particles, wherein the ceramic particles are corundum with the size of less than 5 mum, and the addition amount of the ceramic particles accounts for 15-30 wt% of the weight of the composite enamel coating; and the enamel matrix comprises the following components: 58-62 wt% of silicon dioxide, 10-13 wt% of zirconia dioxide, 5-8 wt% of aluminum oxide, 5-7 wt% of calcium oxide, 4-6 wt% of diboron trioxide, 2-4 wt% of strontium oxide, 2-4 wt% of titanium dioxide, 2-6 wt% of sodium oxide and/or potassium oxide and 0-2 wt% of nickel oxide. The heat-corrosion-resistant composite enamel coating has no problems of continuous dissolving of an alloy matrix caused by easy occurrence of excessive interface reaction between the conventional enamel coating and high temperature alloy matrix during high temperature service, and overhigh content of low-melting-point components and poor diffusion infiltration resistance of the conventional enamel coating, and has excellent comprehensive resistance against heat corrosion and thermal circulation spalling.

Performance of an electronic device is highly improved by epitaxially growing a perovskite-type oxide thin film on an inorganic amorphous layer or an organic solid layer in a desired direction; and furthermore, a high performance electronic device is provided by incorporating the electronic device into an integrated circuit, wherein oxide thin layers are formed on the inorganic amorphous layer or the organic solid layer, and the perovskite-type oxide thin film is grown epitaxially on the oxide layer, the oxide thin layers being able to be at least one of strontium oxide, magnesium oxide, cerium oxide, zirconium oxide, yttrium stabilized zirconium oxide, and strontium titanate; and as the perovskite-type oxide thin film, the perovskite-type oxide thin film being a piezoelectric or ferroelectric material, for example, is used.

The invention discloses a white zirconia ceramic material composition. The composition includes: by weight, aluminium oxide 0.01-35%, magnesium oxide 0-20%, calcium oxide 0-20%, strontium oxide 0-20%, barium oxide 0-20%, yttrium oxide 1.5-8%, and balance zirconium oxide containing hafnium oxide. The white zirconia ceramic material composition has small powder granularity and uniform dispersion, and the white zirconia ceramic containing the composition has high whiteness and light-proofness, and low transmissivity. Moreover, the invention also discloses white zirconia ceramic prepared from the white zirconia ceramic material composition and a preparation method of the white zirconia ceramic.

A pet strap formed of a transparent material, such as plastic or synthetic rubber, with photoluminescent or phosphorescent colored pigment homogeneously dispersed within and incorporated into the elastometric material. The preferred photoluminescent is strontium oxide aluminate or strontium barium aluminate, which emit a yellow-green light. The strap may be disposed to encircle the neck of the pet as a conventional collar with a buckle and strap end retainers. The strap may also be made in various dimensions suitable for pets of all sizes, and may be configured to be trimmed to the desired size. Another embodiment of the pet strap includes a light reversion strip and an underlying or encased fabric reinforcing strip encased within the elastomeric strap adjacent the bottom side of the strap that contacts the pet. The light reversion strip will allow available light to charge the luminescents more proficiently for better performance.