571 results about "Phosphorus oxide" patented technology

The invention provides a method for extracting lithium salts in lithium-containing brine. Lithium is extracted through a co-extraction agent, an extraction agent and a diluent, wherein the extract is a mixture of an amide compound and a neutral phosphorus oxide compound, the structural formula of the amide compound is shown in the specification, and the structural formula of the neutral phosphorus oxide compound is shown in the specification. The method provided by the invention further optimizes the properties of extracted lithium, so that the method is more applicable to the industrial application.

This invention provides a method for preparing hydrogenation catalyst containing phosphorus supported by aluminum oxide. The catalyst is composed of nickel oxide 1-10 wt.%, molybdena oxide and tungsten oxide 10-50 wt.%, phosphorus oxide 1-10 wt.%, and aluminum oxide. The molar ratio of tungsten oxide to molybdena oxide is 2.6-30. The method comprises introducing nickel oxide, molybdena oxide, tungsten oxide and phosphorus oxide into aluminum oxide carrier. The catalyst has such advantage as high hydrogenation activity.

A P-contained hydrocatalyst with silicon oxide-aluminum oxide as its carrier contains nickel oxide (1-10 Wt%), molybdenum oxide and tungsten oxide (10-50), phosphorus oxide (1-9) and carrier (rest). It has high hydrorefining performance. It is prepared by introducing P, Mo, Ni and W to carrier.

The invention provides a method for extracting lithium salts in lithium-containing brine through an extraction method. Lithium is extracted through a co-extraction agent, an extraction agent and a diluent, wherein the extract is a mixture of an amide compound and a neutral phosphorus oxide compound, the structural formula of the amide compound is shown in the specification, and the structural formula of the neutral phosphorus oxide compound is shown in the specification. The method provided by the invention further optimizes the properties of extracted lithium, so that the method is more applicable to industrial application.

A carbon-containing lithium-iron composite phosphorus oxide for a lithium secondary battery positive electrode active material, includes particles being composed of a lithium-iron composite phosphorus oxide having an olivine structure whose basic composition is LiFePO4, and being composited with carbonaceous fine particles. A process for producing the same includes the steps of mixing a lithium compound making a lithium source, an iron compound making an iron source, a phosphorus-containing ammonium salt making a phosphorus source and carbonaceous fine particles, thereby preparing a mixture, and calcicing the mixture at a temperature of from 600° C. or more to 750° C. or less.

The invention discloses a vanadium-phosphorus-oxygen catalyst, and a preparation method thereof. According to the preparation method, a nano vanadium phosphorus oxide is taken as a precursor, is subjected to activating and then moulding, or is subjected to moulding and then activating so as to obtain the vanadium-phosphorus-oxygen catalyst; grain size of the nano vanadium phosphorus oxide is less than 100nm, and by volume, particles with a grain size of 30 to 50nm accounts for 7 to 14%, particles with a grain size of 50 to 70nm accounts for 54 to 79%, and particles with a grain size more than 70nm accounts for 7 to 39%. According to the vanadium-phosphorus-oxygen catalyst prepared by taking the nano vanadium phosphorus oxide as a precursor, octahedral structure of (VO)2P2O7 is neater, catalyst structure is stable, and catalytic activity and catalyst stability are higher. When the vanadium-phosphorus-oxygen catalyst is used for catalytic preparation of maleic anhydride via oxidation of n-butane, n-butane conversion rate reaches 87 to 95mol%, and maleic anhydride selectivity reaches 72 to 84mol%.

A high-nickel multi-element positive electrode material for a lithium secondary battery comprises a base material and a composite cladding layer outside the base material, the general formula of the base material is LiaNi1-x-yCoxMyO2, wherein M is at least one of Mn and Al, a, x and y respectively represent the molar ratios of Li, Co and M in the base material, a is not smaller than 1 and not greater than 1.2, 1-x-y is not smaller than 0.6 and not greater than 1, x is greater than 0 and not greater than 0.4, and y is not smaller than 0 and not greater than 0.4; and the composite cladding layer is a mixture containing lithium phosphorus oxide and at least one of lithium zirconium / lithium titanium / lithium aluminum oxides. A preparation method of the positive electrode material comprises the following steps: preparing the base material; adding a metallic Zr / Ti / Al-containing compound, and carrying out high temperature heat treatment to obtain a lithium zirconium / lithium titanium / lithium aluminum oxide coated base layer; and adding phosphate, and carrying out low temperature heat treatment to obtain the high-nickel multi-element positive electrode material for the lithium secondary battery. The high-nickel multi-element positive electrode material has the advantages of low alkalinity, small gas swelling degree, good processability and good electrochemical performances.

The invention relates to a selective hydrodesulfurization catalyst contains cobalt and molybdenum as active components. The selective hydrodesulfurization catalyst is characterized in that silicon oxide and aluminum oxide are used as carriers of the catalyst; based on the total weight of 100%, the catalyst comprises 2-6wt% of cobalt oxide, 9-15 wt% of molybdenum oxide, 2-8wt% of alkaline earth metal oxide, 2-6wt% of phosphorus oxide, 3-5wt% of alkali metal oxide, 2-6wt% of silicon oxide and 54-80 wt% of aluminum oxide; and the catalyst has the specific surface area of 200-300m<2> / g and the pore volume of 0.5-0.7mL / g. The catalyst has high hydrogenation activity and selectivity, good stability, low research octane number loss and high liquid yield. The catalyst is suitable for selective hydrodesulfrization of low-quality gasoline and is particularly suitable for selective hydrodesulfrization of low-quality FCC (Family Car China) gasoline.

There is provided a catalyst for hydrotreating a hydrocarbon oil, which comprises an inorganic oxide support containing a certain amount of phosphorus oxide having provided thereon: at least one selected from metals in the Group 6 of the periodic table, at least one selected from metals in the Group 8 of the periodic table, and carbon, and which has a certain specific surface area, pore volume, and mean pore diameter, a process for producing the same, and a method for hydrotreating a hydrocarbon oil using the same. Thereby, the catalyst can be produced in a simple and convenient manner and sulfur compounds in the hydrocarbon oil can be exceedingly highly desulfurized and simultaneously nitrogen compounds can be diminished without necessitating severe operating conditions.

The invention provides a method for extracting lithium salt from lithium-contained brine by using an extraction process. The method comprises the step of extracting lithium by using a co-extraction agent, an extraction agent and a diluent, wherein the extraction agent is a mixture of an amide compound and a neutral phosphorus oxide compound, the amide compound has the structural formula shown in the specification, and the neutral phosphorus oxide compound has the structural formula shown in the specification. The method provided by the invention is used for further optimizing the performance of the extracted lithium and is more suitable for industrial application.

The invention provides a homogeneous composition comprising a hemostatically effective amount of a charged oxide, wherein the composition has an isoelectric point, as measured in calcium chloride, below 7.3 or above 7.4. Typically, the charged oxide is selected from the group consisting of silaceous oxides, titanium oxides, aluminum oxides, calcium oxides, zinc oxides, nickel oxides and iron oxides. In some embodiments, the composition further comprises a second oxide selected from the group consisting of calcium oxide, sodium oxide, magnesium oxide, zinc oxide, phosphorus oxide and alumina. In a typical embodiment of the invention, the charged oxide is silaceous oxide, the second oxide comprises calcium oxide and the ratio, by molar ratio, of silaceous oxide to calcium oxide is 0.25 to 15. Optionally, the composition further comprises phosphorous oxide. Also described are methods of making and using such compositions.

An organic luminescence device uses a substrate with a gas-barrier film in which a gas-barrier film containing an amorphous oxide and at least two kinds of oxides selected from the group consisting of boron oxide, phosphorus oxide, sodium oxide, potassium oxide, lead oxide, titanium oxide, magnesium oxide, and barium oxide is formed on a substrate. The selected two kinds of oxides are a combination of an oxide of an element having a large atomic radius and an oxide of an element having a small atomic radius. The substrate is made of glass or plastic. As a result, the organic luminescence device using a substrate excellent in gas-barrier capability to prevent the infiltration of oxygen, water vapor, etc. from outside is provided.

The invention discloses a preparation method of dialkyl hypophosphite. The structure of the dialkyl hypophosphite is disclosed as a Formula (I). The preparation method of the dialkyl hypophosphite comprises the following steps: preparing a Grignard reagent from alkylogen, magnesium powder and organic solvent, preparing dialkyl phosphorus oxide from the Grignard reagent and diethylester phosphite,carrying out reaction on the dialkyl phosphorus oxide and an oxidant, acidifying to obtain a dialkyl phosphinic acid solution, and carrying out reaction on the dialkyl phosphinic acid solution and a metal salt to obtain the corresponding dialkyl hypophosphite. The preparation method of dialkyl hypophosphite has the advantages of high yield and simple synthesis technique, is convenient to operate,greatly lowers the production cost, simplifies the production equipment and enhances the safety of the production process.(I).

A sealing glass of a low melting point glass composition which is a phosphate glass that contains transition metal wherein the glass contains 15 to 35% of BaO and Sb2O3 (in total) and the ratio by weight of BaO to Sb2O3 or Sb2O3 to BaO is 0.3 or less. Particularly the transition metal is vanadium and the glass contains V2O5 of 45 to 60 wt % as vanadium oxide and P2O5 of 15 to 30 wt % as phosphorus oxide. The bonding material is a mixture of a filler and a vanadate-phosphate glass that contains V2O5 as the main ingredient and the glass contains V2O5 of 45 to 60%, P2O5 of 20 to 30%, BaO of 5 to 15%, TeO2 of 0 to 10%, Sb2O3 of 5 to 10%, and WO3 of 0 to 5%. The particle size of the filler is in the range of 1 to 150 μm and the ratio of filler is 80% by volume or less of the adhesive glass.

The present invention relates to a catalyst made up by using zirconium base carrier material or zirconium base carrier material modified by phosphoric acid and vanadium phosphorus oxide loaded on said carrier material. The described zirconium base carrier material is zirconium oxide, the loaded quantity of vanadium phosphorus oxide is 25-47 wt% of total mass of said catalyst, in which the atomic ratio of vanadium and phosphorus is 1.2, its specific surface area is about 21-29 sq.m / g. When it is used as catalyst for normal-butane air oxidation reaction to prepare cis-butenedioic anhydride, in the typical reaction temperature zone of 380-420deg.C its per pass conversion rate is 38-89%, the cis-butenedioic anhydride selectivity is 29-69% and maximum cis-butenedioic anhydride yield is 61.2%. Said invention also discloses the preparation method of said catalyst.

The invention relates to a catalyst for removing mercaptan sulfur in catalytic gasoline at low temperature and a preparation method of the catalyst, belonging to the field of gasoline desulfurization. The catalyst for removing the mercaptan sulfur in the catalytic gasoline at low temperature is prepared by taking aluminium oxide or nano HZSM-5 molecular sieve and alumina composite solid acid as carriers, and comprises the following components based on the total mass of the catalyst: 5-20% of zinc oxide, 5-15% of ferric oxide, 0.5-5% of lanthanum oxide and 0.5-5% of phosphorus oxide. The catalyst disclosed by the invention is applicable to a low temperature hydrogenation sweetening reaction of the catalytic gasoline and has the characteristics of high sweetening activity, low olefin hydrogenation saturation activity, high liquid yield, nearly no loss of octane number and the like.

A supported carbon having high surface area, high pore volume containing (i) molybdenum (ii) a metal of non noble Group VIII, (iii) phosphorous, is used for hydrometallization of heavy crude oil and residue. The catalyst contains about 6 to 15 wt % molybdenum as MoO3, about 1 to 6 wt % cobalt or nickel as CoO or NiO and phosphorus as phosphorous oxide. One characteristic of the catalyst is the portion of pores having pore diameter in the range of 200 to 2000 Angstrom of 20 percent or more. The catalyst prepared by chelating agent has higher hydrodesulfurization activity assuming that more dispersed active metals are present on this catalyst. Long run activity studies show that catalyst having only molybdenum supported on activated carbon has good stability with time-on-stream and very high metal retention capacity.

A method and composition for enhancing corrosion resistance, wear resistance, and contact resistance of a device comprising a copper or copper alloy substrate and at least one metal-based layer on a surface of the substrate. The composition comprises a phosphorus oxide compound selected from the group consisting of a phosphonic acid, a phosphonate salt, a phosphonate ester, a phosphoric acid, a phosphate salt, a phosphate ester, and mixtures thereof; an aromatic heterocycle comprising nitrogen; and a solvent having a surface tension less than about 50 dynes / cm as measured at 25° C.

The invention discloses a spiro aryl phosphorus oxide or sulfide as ALK inhibitor, and in particular discloses a compound shown in a formula (I) as an ALK inhibitor or a pharmaceutically acceptable salt thereof.

A method for manufacturing of an improved attrition resistant catalyst having an oxide-rich surface layer involving forming an aqueous slurry comprising; catalyst, catalyst precursor or catalyst support particles (e.g., vanadium / phosphorus oxide, V / P / O catalyst), a large particle colloidal oxide sol (e.g., 200 Å, 600 Å, 750 Å colloidal silica, sodium stabilized) as the major oxide-rich surface layer forming component, and a second oxide-rich surface layer forming component solution wherein the solute is selected from the group consisting essentially of a precursor of the oxide-rich surface with average particle size no greater than 5 nm (e.g., aqueous silicic acid or polysilicic acid), a colloidal oxide sol wherein oxide particles in the sol have an average size below 10 nm (e.g., 50 Å colloidal silica), and mixtures thereof and then spray drying the slurry to form porous microspheres of attrition resistant catalyst; and, calcining / activating the spray dried microspheres. Such a catalyst is particularly useful and exhibits improved performance in oxidation processes such as the catalytic air oxidation of butane to maleic anhydride.

The invention discloses a vanadium-phosphorus-oxide (VPO) catalyst for preparing crylic acid or methyl acrylate by condensing acetic acid or methyl acetate with formaldehyde. A preparation method of the vanadium-phosphorus-oxide (VPO) catalyst comprises the following steps: reducing pentavalent vanadium (vanadium pentoxide) through monobenzyl alcohol or a mixed alcohol of benzyl alcohol / isobutyl alcohol, adding a polyethylene glycol (PEG6000) surfactant into an alcohol medium, then adding phosphoric acid, adjusting a ratio of P (phosphorus) / V (vanadium) to be 1.05 to prepare a catalyst precursor, and activating the catalyst precursor in pure nitrogen, pure air and 1.5%( volume fraction) butane-air mixture atmosphere. Since the PEG is added and / or the types of prepared medium alcohols and different precursor activation atmospheres are changed in the preparation process of the catalyst, a crystal phase shape and crystallinity, reaction reactivity of lattice oxygen, ratio of V<5+> / V<4+> on the surface of the catalyst can be significantly modulated, thus significantly modulating reaction behavior of the catalyst. The catalyst for preparing crylic acid (ester) by condensing acetic acid (methyl ester) with formaldehyde is high in catalytic efficiency, and by-products are few; a greatest generation rate of (crylic acid plus acrylic ester) can reach 32.1micromoles / gcat<-1> / min<-1>.

A catalyst for preparing propene or ethene from olefin by catalytic cracking with high high-temp hydrothermal stability and no coking is proportionally prepared from the ZSM-5 molecular sieve whose mole ratio of SiO2 to Al2O3 is 20-800, RE oxide, and phosphorus oxide as modifier.

A cathode material capable of improving capacity and superior low temperature characteristics, and a battery using the cathode material are provided. A cathode and an anode are layered with an electrolyte layer and a separator in between. The cathode contains a complex oxide containing lithium, manganese, nickel, and cobalt; a complex oxide containing lithium and at least one of nickel and cobalt; and a complex oxide containing lithium and manganese and having a spinel structure or a phosphorus oxide containing lithium and iron at a given ratio.

The invention provides a regenerated silicon material as well as a preparation method and application thereof. The regenerated silicon material is prepared from 40 to 70 weight percent of silicon dioxide and 30 to 60 weight percent of oxide selected from phosphorus, calcium and sodium, wherein the silicon dioxide forms a three-dimensional network structure; calcium ions and phosphorus ions are orderly distributed among three-dimensional reticular silicon atoms, wherein five-valence silicon atoms and / or six-valence silicon atoms account for 1 to 10 mol percent of all silicon atoms; the content of phosphorus oxide is 2 to 5 weight percent; in addition, in an NMR (Nuclear Magnetic Resonance) graph, an absorption peak exists at a position of 200 to 220ppm. The regenerated silicon material rich in five valence coordinate silicon and six valence coordinate silicon can be formed at lower temperature and normal pressure, and has unique structures and performances. Besides, high-coordinate silicon atoms in the regenerated silicon material can make an ultraviolet absorption peak generate red shift.

The invention relates to a method for extracting lithium from salt lake brine by an extraction method. The method is suitable for a production process that lithium carbonate and lithium chloride are prepared from high magnesium-lithium ratio salt lake brine and concentrated old brine which contains lithium of salt pan. Co-extraction agent FeCl3, extraction agent and diluent are adopted to carry out lithium extraction, wherein the extraction agent is mixture of neutral phosphorus oxide compound A and phase modifier B, the phase modifier B is organic compound which can generate protonation reaction with the neutral phosphorus oxide compound A in an extraction reaction process, an extraction complex composition obtained after the extraction agent is used for lithium extraction is xLiFeCl4.yHCl.aA.bB, and the extraction complex can be easily dissolved in diluent; an extraction system has good phase splitting performance and reverse extraction and regeneration performance, and the lithium extraction technology of the extraction method is further optimized. The method has a low requirement on equipment, the adopted organic compound is cheap and can be easily obtained, and therefore, the method is suitable for industrial application.