Abstract: A method for hydrotreating and recycling waste lubricating oil, the method comprising the two steps of slurry bed pre-hydrotreatment and deep hydrotreatment, specifically as follows: mechanical impurities are removed from waste lubricating oil, and then the oil is subjected to flash distillation to separate free water and a portion of light hydrocarbons; a bottom product of the flash distillation column is mixed with hydrogen and a self-sulfurizing oil-soluble transition metal catalyst, and then enters a slurry bed reactor for pre-hydrotreatment; a liquid product obtained by performing separation on a reaction effluent is subjected to hydrocyclone separation and solvent washing to remove solid residue, and then a pre-treated lubricating oil component is obtained; said component is mixed with hydrogen and then enters a hydrofining reactor, an isomerization-dewaxing reactor, and a supplementary refining reactor, connected in series, for hydrotreatment; and the reaction products are separated to obtain high-qual

Abstract: The present invention relates to a pre-hydrotreatment and purification method for waste lubricating oil, the method comprising the following steps: mechanical impurities are removed from waste lubricating oil, and then the oil is subjected to flash distillation to separate free water and a portion of light hydrocarbons; a bottom product of the flash distillation column is mixed with hydrogen and a self-sulfurizing oil-soluble transition metal catalyst, and then enters a slurry bed reactor for pre-hydrotreatment; a gas product obtained by performing separation on a reaction effluent is subjected to adsorption purification and then enters a hydrogen recycle compressor for cyclic use; a liquid product obtained by performing separation on a reaction effluent is subjected to hydrocyclone separation and solvent washing to remove solid residue, and finally a purified lubricating oil component is obtained.

Abstract: The present disclosure provides a Paenibacillus mucilaginosus LT1906 and use thereof, and a microorganism-activated circulating fluidized bed (CFB) fly ash-based cementitious material and a preparation method and use thereof, belonging to the technical field of cementitious materials. The Paenibacillus mucilaginosus LT1906 has a deposit number of CGMCC No. 21337. The strain is capable of dissolving silicate minerals and aluminosilicate minerals in the CFB fly ash to increase dissolution of active SiO2. The strain is used for activating the CFB fly ash-based cementitious material, to ameliorate a large water demand and a low early strength of the cementitious material, thereby improving comprehensive utilization of the CFB fly ash in the field of building materials.

Abstract: A reactor temperature measurement system includes a Fiber Bragg Grating sensor array arranged in a body of the reactor for monitoring temperatures at multiple positions in an axial direction of the body to obtain temperature sensing optical signals; and a fiber grating demodulator, connected to the Fiber Bragg Grating sensor array, and used to demodulate the temperature sensing optical signals. A method for preparing a Fiber Bragg Grating includes preparing a Fiber Bragg Grating by using a single-mode fiber and annealing the Fiber Bragg Grating, which includes heating the Fiber Bragg Grating to a temperature above 400° C. and maintaining for 100 to 200 hours.

Abstract: This invention provides nonaqueous electrolyte solutions for lithium batteries. The nonaqueous electrolyte solutions comprise a liquid electrolyte medium; a lithium-containing salt; and at least one oxygen-containing brominated flame retardant.

Abstract: The present invention discloses an exhaust filter system for a battery pack, including an explosion-proof valve and a filter apparatus. One end of the explosion-proof valve is connected to a battery pack. The other end of the explosion-proof valve is connected to the filter apparatus. The filter apparatus includes an introduction port, a discharge port, a housing, and a filter mechanism. The introduction port and the discharge port are separately disposed at two ends of the housing. The filter mechanism is disposed inside the housing. The filter mechanism is provided with a plurality of filter holes. The present invention has the following beneficial effects: by optimal design of a novel explosion-proof valve and a novel filter apparatus, the applicability of technical solutions of this application is made more extensive. The problem of fire induced by thermal runaway can be satisfactorily solved for both high-capacity batteries and small-capacity batteries.

Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon or more, and a true crystallization temperature of about 20° F. or less, and comprise water and one or more inorganic bromide salts, with the provisos that when calcium bromide is present, one or more other water-soluble inorganic salts are also present, when lithium bromide is present, calcium bromide is absent, when bismuth(III) bromide is present, one or more other water-soluble inorganic salts are also present, and for a true crystallization temperature of about 10° F. or less, when manganese(II) bromide is present, one or more other water-soluble inorganic salts are also present. Processes for forming these zinc-free aqueous brine compositions are also provided.

Abstract: A reactor temperature measurement system includes a Fiber Bragg Grating sensor array arranged in a body of the reactor for monitoring temperatures at multiple positions in an axial direction of the body to obtain temperature sensing optical signals; and a fiber grating demodulator, connected to the Fiber Bragg Grating sensor array, and used to demodulate the temperature sensing optical signals. A method for preparing a Fiber Bragg Grating includes preparing a Fiber Bragg Grating by using a single-mode fiber and annealing the Fiber Bragg Grating, which includes heating the Fiber Bragg Grating to a temperature above 400° C. and maintaining for 100 to 200 hours.

Abstract: The disclosure includes brominated alkenyl alcohols, their use as a flame retardant in polyurethane and polyurethane foams, and polyurethanes containing the brominated alkenyl alcohols. Compositions, methods, and processes are disclosed. The brominated alkenyl alcohols used as flame retardants in polyurethanes can be generally described by Formula (I), the scope of which is disclosed herein.

Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon to about 15.8 pounds per gallon, and a true crystallization temperature of about 20° F. or less, and comprise water and two or more inorganic bromide salts, where the inorganic bromide salts include calcium bromide and cesium bromide. Processes for forming these zinc-free aqueous brine compositions are also provided.

Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon or more, and a true crystallization temperature of about 20° F. or less, and comprise water and one or more inorganic bromide salts, with the provisos that when calcium bromide is present, one or more other water-soluble inorganic salts are also present, when lithium bromide is present, calcium bromide is absent, when bismuth(III) bromide is present, one or more other water-soluble inorganic salts are also present, and for a true crystallization temperature of about 10° F. or less, when manganese(II) bromide is present, one or more other water-soluble inorganic salts are also present. Processes for forming these zinc-free aqueous brine compositions are also provided.

Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon or more, and a true crystallization temperature of about 20° F. or less, and comprise water and one or more inorganic bromide salts, with the provisos that when calcium bromide is present, one or more other water-soluble inorganic salts are also present, when lithium bromide is present, calcium bromide is absent, when bismuth(III) bromide is present, one or more other water-soluble inorganic salts are also present, and for a true crystallization temperature of about 10° F. or less, when manganese(II) bromide is present, one or more other water-soluble inorganic salts are also present. Processes for forming these zinc-free aqueous brine compositions are also provided.

Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon or more, and a true crystallization temperature of about 20° F. or less, and comprise water and one or more inorganic bromide salts, with the provisos that when calcium bromide is present, one or more other water-soluble inorganic salts are also present, when lithium bromide is present, calcium bromide is absent, when bismuth(III) bromide is present, one or more other water-soluble inorganic salts are also present, and for a true crystallization temperature of about 10° F. or less, when manganese(II) bromide is present, one or more other water-soluble inorganic salts are also present. Processes for forming these zinc-free aqueous brine compositions are also provided.

Abstract: This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon to about 15.8 pounds per gallon, and a true crystallization temperature of about 20° F. or less, and comprise water and two or more inorganic bromide salts, where the inorganic bromide salts include calcium bromide and cesium bromide. Processes for forming these zinc-free aqueous brine compositions are also provided.

Abstract: Sulfur containing heterocycle-fused naphthalenetetracarboxylic acid diimide derivatives represented by formula (I) are disclosed, in which, R1 and R2 are C1-C30 and C1-C12 linear alkyl or branched alkyl, respectively; R3 is H or halogen atom. The preparation method of the derivatives and the use thereof in manufacture of organic thin film field effect transistor or organic solar batteries are also disclosed.

Abstract: Sulfur containing heterocycle-fused naphthalenetetracarboxylic acid diimide derivatives represented by formula (I) are disclosed, in which, R1 and R2 are C1-C30 and C1-C12 linear alkyl or branched alkyl, respectively; R3 is H or halogen atom. The preparation method of the derivatives and the use thereof in manufacture of organic thin film field effect transistor or organic solar batteries are also disclosed.

Abstract: An efficient and cost-effective method for treating carbon nanotubes (CNTs) is provided. The method includes comprising: dispersing said carbon nanotubes in a dispersing medium to prepare a dispersion system; mixing said dispersion system with adsorbent so that type-specific carbon nanotubes contained in said dispersion system are absorbed onto the adsorbent, wherein the adsorbent is modified by a chemical/biological modifier so as to have different adsorption selectivity to carbon nanotubes of different types; and separating the adsorbent from the dispersion system, whereby the type-specific carbon nanotubes adsorbed onto the adsorbent is separated from the carbon nanotubes of another type enriched in the dispersion system; carbon nanotubes produced by the treatment method, and CNTs devices comprising thereof.

Abstract: Carbon nanotubes, a method for preparing the same and an element using the same are provided. The method for preparing carbon nanotubes includes synthesizing carbon nanotubes from carbon source using an arc-discharge method in the presence of catalysts and promoter, wherein the promoter contains an element capable of reducing the surface energy of carbon nanotubes. Carbon nanotubes with high purity and narrow diameter distribution can thus be prepared.

Abstract: A method for treating carbon nanotubes is provided. In the method for treating carbon nanotubes (CNTs), the CNTs are treated with SO3 gas at an elevated temperature, for example, at a temperature in the range of 385° C. to 475° C.

Abstract: New processes for producing decitabine are provided.