33results about How to "Good slurry stability" patented technology

The invention discloses a method for tempering oily sludge blended with coal water slurry. A fluorine-containing water-soluble macromolecule copolymer and a surfactant are dorpwise added for tempering treatment in the oily sludge centrifugal reduction treatment process; polyol ester lubricating oil, a polysulfide lubricating oil and a polyolefin drag reducing agent are added into the oily sludge subjected to the reduction treatment; and ultrasonically intensified mass transfer dispersion is carried to finally obtain the tempered oily sludge. The oily sludge tempering equipment needed in the method is simple, the treatment efficiency is high, the tempered oily sludge can be directly added into a conventional coal water slurry preparation system for preparing coal water slurry which has relatively high slurry concentration, good flowability and relatively good slurry preparation stability; therefore, relatively high industrial application values are achieved, meanwhile a guarantee is provided for harmless treatment and resource utilization of the oily sludge, and remarkable comprehensive economic and environmental-friendly benefits are achieved.

A negative electrode active material for a non-aqueous electrolyte secondary battery, wherein the negative electrode active material includes negative electrode active material particles, the negative electrode active material particles include a silicon compound particle which includes a silicon compound including oxygen, the silicon compound particle includes a Li compound, and the silicon compound particle is adhered with a phosphate salt in an outermost surface layer thereof. With this, the negative electrode active material which is high in the capacity and the stability to aqueous slurry as well as excellent in the cycle characteristic and the first efficiency can be provided.

The method of making optical fluoride crystal components provide optical components with beneficial final polished transmission surfaces for transmitting below 200 nm wavelengths of light, such as produced by excimer lasers and utilized in optical lithography. The invention utilizes colloidal silica soot in the polishing of optical fluoride crystal surfaces. This colloidal silica soot is a byproduct of chemical vapor deposition processing of fused silica or ultra low expansion glasses. The colloidal silica byproduct is referred to as "soot". Retaining the same physical properties as the parent glass and having a spherical morphology, the colloidal silica soot is an ideal for final polishing applications of optical fluoride crystals, and particularly for optical fluoride crystals such as calcium fluoride which have high transmission levels to below 300 nm light such as produced by excimer lasers. The soot has a large particle size and spherical shape when compared to conventional colloidal or fumed silica.

The invention provides a composite material and a preparation method thereof, a negative electrode material, a negative electrode plate and a lithium ion battery. The composite material comprises an inner core comprising a silicon-oxygen-lithium compound, and a hydrophobic coating layer, wherein the core is partially or completely covered with the hydrophobic coating layer, the hydrophobic coating layer comprises a compound M with the chemical formula being LiaSiObXc and a compound N with the chemical formula being LidSiOeYf, a is larger than 0 and smaller than or equal to 5, b is larger than 0 and smaller than or equal to 5, c is larger than 0 and smaller than or equal to 5, d is larger than 0 and smaller than or equal to 5, e is larger than 0 and smaller than or equal to 5, f is larger than 0 and smaller than or equal to 5, X is a metal element, and Y is a non-metal element. The composite material provided by the invention has good electronic conductivity, high first coulombic efficiency, good cycle stability and high rate capability.

The invention provides a high-nickel multi-element positive electrode material which is composed of particles with a general formula of Li1 + kMe1-kO2 and a high-valence lithium metal oxide compound coated on the surfaces of the particles, and high-valence metal ions in the high-valence lithium metal oxide compound are positive ions which do not have electrons on the outermost d orbit and are not less than + 5 valence states. The invention further provides the high-nickel multi-element positive electrode material and application thereof. The high-nickel multi-element positive electrode material provided by the invention has high slurry stability, cycling stability and thermal safety performance, so that the electrochemical performance of the high-nickel multi-element positive electrode material serving as the positive electrode material of the lithium ion battery in various aspects is balanced.

The invention relates to modified waste slurry slag of a premixing plant as well as a preparation method and application of the modified waste slurry slag in foam concrete. The modified waste slurry slag of the premixing plant is composed of waste slurry slag of the premixing plant, modified shale pottery sand, a dispersing agent, fibers and water, and the modified shale pottery sand is obtained by infiltrating shale pottery sand in a tea saponin aqueous solution until the shale pottery sand absorbs water to be saturated. After modification treatment, the overall activity of the waste slurry residues is improved, slurry is more homogeneous, the waste slurry residues can be used as an admixture to be doped into a concrete material, and the utilization efficiency of the waste slurry residuessubjected to filter pressing in a premixing plant is remarkably improved. The modified pre-mixing plant waste slurry slag is used in the foam concrete, so that the slurry stability of the foam concrete can be improved, the properties of crack resistance, heat preservation, strength and the like are improved, and the problems of easiness in cracking, difficulty in maintenance and the like are solved. The preparation method of the modified waste slurry slag of the premixing plant is simple and can be connected with the whole foam concrete production process, modification and production are carried out synchronously, and a technological process and a production mode for efficient utilization of the waste slurry slag of the premixing plant are formed.

The invention relates to cement, which comprises the following components by weight: 50-100g of 80# cement, 20-30g of silica sand powder, 5-10g of diatomite powder, 10-15g of barium sulfate powder, 3-8g of OP-10 emulsifier and 5-10g of sodium phosphate, wherein the granularities of 20-30g of silica sand powder and 5-10g of diatomite powder are respectively 100-300 micrometers. The preparation method of the cement comprises the following steps of: 1, taking the components by weight for later use; 2, uniformly mixing the 80# cement, the silica sand powder and the diatomite powder to obtain a mixture, and grinding the mixture to reach the granularity of 50-100 micrometers in an air-current mill; 3, adding the barium sulfate powder, the OP-10 emulsifier and the sodium phosphate into the ground material, and stirring for 10-20 minutes in a stirrer. The cement is excellent in waterproofness and can be used for improving the performance of cement paste with higher water content by using a material consisting of phosphate and mineral substances; the cement is especially suitable for being used during waterproof operation to small gaps; and the cement paste is good in paste stability and quick to harden.

A positive active material for a rechargeable lithium battery includes a nickel-based lithium metal oxide having a layered crystal structure, and a coating layer including a lithium-metal oxide disposed selectively disposed on (003) crystalline plane of the nickel-based lithium metal oxide, wherein the positive active material includes at least one secondary particle including an agglomerate of two or more primary particles.

A slurry composition for an electrode of a secondary battery, has a hydrophobically modified alkali-swellable emulsion (HASE), a poly(meth)acrylic acid and a conductive agent. The slurry composition is capable of realizing excellent electrode adhesion in high energy electrode. The electrode of a secondary battery prepared using the same, and a secondary battery are also provided.

A negative electrode active material for a non-aqueous electrolyte secondary battery contains negative electrode active material particles which include silicon compound (SiO_x: 0.5≤x≤1.6) particles. The negative electrode active material particles are at least partially coated with a carbon material, contain one or more selected from Li₂SiO₃ and Li₂Si₂O₅, and satisfy Ib/Ia≤4.8 and Ic/Ia≤6.0 in an X-ray diffraction measurement using a Cu-Kα line. Ia represents an intensity of a peak around 2θ=28.4° attributable to Si obtained by the X-ray diffraction. Ib represents a peak intensity of a peak attributable to Li₂SiO₃ obtained by the X-ray diffraction. Ic represents a peak intensity of a peak attributable to Li₂Si₂O₅ obtained by the X-ray diffraction. Thus, a negative electrode active material for a non-aqueous electrolyte secondary battery, is stable over a long period even in an aqueous slurry and enables high capacity, favorable cycle characteristics and first-time efficiency.